The coastal-marine area is divided into zones where environment conditions (light, wetness, salinity, hydro-dynamism, nutrients and typology of substratum) are relatively homogenous in one zone but different from adjacent zones by environmental discontinuities.

The terrestrial part is called the adlittoral region, followed by four other zones:

  1. Supralittoral
  2. Mediolittoral
  3. Infralittoral
  4. Circalittoral

A zone is distinguished from adjacent zones by distinctive features, namely the range of depths in which different organisms survive, with each zone hence being characterised by specific assemblages of living organisms. The four zones can then be subdivided as follows:

1. Supralittoral

a) Rocky shore
b) Sandy shore
c) Posidonia banquettes

2. Mediolittoral

a) Upper mediolittoral zone of rock shores
b) Middle and lower mediolittoral zone of rock shores
c) Vermettid / coralline algal ‘trottoir’ (or ‘rim’)
d) Soft substratum shores

3. Infralittoral

a) Hard bottom assemblages
b) Cystoseira ssp. communities
c) Soft bottom assemblages
d) Seagrass meadows
e) Posidonia ‘barrier reefs’

4. Circalittoral

a) Coralline communities
b) Mäerl communities

1. Supralittoral

This zone is subdivided into hard and soft substrata. The soft substratum is either of the slow-drying form, with the most common type being Posidonia banquettes, or the rapidly drying form, consisting of sand and burrowing animals. The supralittoral zone is characterised by organisms that require some wetting with seawater but not immersion.

a) Rocky shore

Rocky shores are formed because of the erosion of bedrock, which is brought about by the pounding of sea waves. Harsh conditions of wave action combined with weather conditions make this a hostile environment for the survival of most living organisms. Rocks in this zone have a characteristic blackish-brown hue, caused by microscopic algae or cyanobacteria (primitive microorganisms), which live on or in the rock. This area may also be covered by maritime lichens, which are mostly Verrucaria spp. Hollows in the rock collect seawater. These seawater rock pools are unstable, unlike the freshwater rock pools, because of the waves pounding on the rocks, which replace the water in the pool and species living within, especially when considering the most seaward rock pools. On the contrary, rock pools that are further inland and less subject to wave action are able to sustain a number of species, such as periwinkles, the most abundant usually being the black periwinkle (MT: żibġet il-blat sewda; SN: Littorina [=Melarhaphe] neritoides) and the isopod commonly known as the sea-slater (MT: id-dudu tas-sajd; SN: Ligia italica). The lower limit of this zone is characterised by more resilient species such as the flattened barnacle (MT: il-koċċla ċatta; SN: Chtalamus depressus) and limpets (MT: l-imħar); SN: Patella spp.), which attach to rocks at the seawater’s edge.

b) Sandy shore

Sandy shore habitats form by way of the deposition of sand and fine sediments as a result of erosion of bedrock. This habitat type is mainly dominated by burrowing animals such as sandhoppers (MT: il-bergħud tar-ramel; SN: Talitrus saltator), amphipods, beetles and woodlice. The highest point reached by waves, forming a visible sub-zone on most sandy shores, collects stranded material, which provides a cool moist environment for small invertebrates, both terrestrial and marine (flies, beetles, centipedes, spiders, isopods, amphipods and gastropods).

c) Posidonia banquettes

In the Mediterranean, as well as on the sandy shores in the Maltese islands, banks of seagrass leaves (MT: l-alka; SN: Posidonia oceanica) and seaweed debris are deposited by wave action. These Posidonia banquettes support an interesting community of terrestrial and marine species including amphipods, snails, spiders, beetles flies and others.

Posidonia banquettes at Fomm ir-Riħ
Posidonia banquettes at Fomm ir-Riħ

2. Mediolittoral

This zone is colonised by organisms that tolerate regular immersion in seawater but not continuous submersions. The mediolittoral may have an extent of between 10-150 cm (very rarely 200 cm), depending on the degree of exposure. Organisms colonising this zone are characterised by vertical zonation (i.e. the occurrence of dominant species in distinct horizontal bands) allowing the distinction between the upper, middle and lower zones.

Organisms in the upper mediolittoral, which is exposed for far longer periods than the lower mediolittoral, must have a greater tolerance to desiccation because of the continual alteration between a marine and terrestrial habitat. This causes problems of heat stress, desiccation, oxygen shortage and reduced feeding opportunities. Activity and behaviour of several organisms is related to fluctuations in water level (e.g. some organisms, which are mobile when prone to desiccation or heat stress, migrate to deeper water during sea-level lows; others, especially sessile ones, become active only when covered with water). On the other hand, the pounding of waves generally causes a wave shock, especially during rough weather, causing physical damage to organisms due to abrasion, hydrostatic pressure and pressure drag. Most of the animals found in this zone counteract this by adopting various shapes to break the wave. For instance, limpets occurring in rock depressions, have a characteristic cone-shaped shell, which coupled with the powerful suction of its foot, allows the animal to withstand the pounding waves of the lower littoral zone.

Local communities may be prone to seasonal influxes of predators (e.g. migratory shore birds) that can have devastating effects (an example of biological disturbance); hence, the development of behavioural and structural defences by many mediolittoral species.

a) Upper mediolittoral zone of rock shores

On rocky shores, the upper reach of this zone is characterised by: species of barnacles such as the star barnacle (MT: il-koċċla komuni; SN: Chtamalus stellatus); several microscopic blue-green algae also occur in this sub-zone; limpets (species of Patella; different species occur at slightly different levels) occur at the lower limit of the barnacle zone; the chiton Lepidochitona corugata occurs within the limpet zone.

b) Middle & lower mediolittoral zone of rock shores

Between the middle and the lower mediolittoral the shore is generally dominated by the attached snail Dendropoma petreaum in exposed parts, while in sheltered microhabitats one finds the species of snail known as Vermetus triqueter. In polluted waters, the species of algae forming algal belts on the lower mediolittoral rock become replaced by species of Enteromorpha. Several other seaweeds grow on this platform or on rocks at equivalent levels where this is lacking.

In the mid-mediolittoral, macroalgae (large algae) become evident. Different shores have different assemblages of species depending on geographical location, exposure, nature of the substratum and other factors. Characteristic species include the red algae Laurencia sp. (MT: il-lawrenzja; SN: Laurencia papillosa), Polysiphonia sertularoides (which often grows on the shells of limpets), the coralline Phymatolithon lenormandii, species of the brown alga Dictyopteris sp. and, particularly in sheltered conditions, species of green algae are found.

Vagile top-shells, such as the toothed top-shell (MT: il-bebbuxu tal-mazza; SN: Monodonta turbinata), occur throughout the mediolittoral during calm weather, but seek the shelter of pits and grooves in the lower reaches of the shore during rough seas. The lower mediolittoral often includes a belt with the coral weed (MT: il-korallina; SN: Corallina elongata) often accompanied by other corallines.

The fringe between the lower mediolittoral and upper infralittoral is marked, in exposed shores, by a belt of Cystoseira species, particularly C. amentacea (protected species) and C. compressa (in calmer and sometimes polluted conditions).

c) Vermettid / coralline algal ‘trottoir’ (or ‘rim’)

On some shores, the shells of the vermettid gastropod Dendropoma petraeum are embedded in encrustations of the calcareous coralline red alga Neogoniolithon notarsii to form characteristic platforms known as ‘trottoirs’ or vermettid rims.

A second type of threatened trottoir, which may form in the Western Mediterranean, is that formed by the coralline alga Lithophyllum lichenoides. In the Maltese Islands, this forms small hard cushions and is restricted to two or three areas.

d) Soft substratum shores

This type of mediolittoral exhibits harsher conditions than the hard type, since, in addition to those attributes mentioned above, the sand is mobile. Only fauna, usually bacteria, worms of various types, amphipods, diatoms and dinoflagellates, are present in this zone. All these generally live within the sand (endobenthos) or else these animals burrow within the sand.

3. Infralittoral

The infralittoral zone extends from the lower limit of the mediolittoral, which is never or seldom exposed down to the lowest limit, where seagrasses and photophilic (light-loving) algae can live. The lower limit of this zone on average lies at circa 50 m depth in clear seas.

a) Hard bottom assemblages

On hard bottoms, the infralittoral zone is vegetated with photophilic (light-loving) macroalgae in the upper regions and sciaphilic (shadow-loving) communities in shady areas. The most notable and dominant communities in this zone are ‘forests’ dominated by species of brown algae, namely Cystoseira spp., and by Dictyopteris (MT: ħabaq il-baħar; SN: Dictyopteris membranacea [= D. polipodioides]). The latter grows mainly on shady and steeply sloping rocky bottoms.

b) Cystoseira ssp. communities

Cystoseira is a very large genus of tough brown seaweeds adapted to withstand considerable hydrodynamism. Different species of Cystoseira occur in different parts of the Mediterranean. Moreover, different species occur in different environmental conditions and in different sub-zones in the same geographical locality. In the central Mediterranean, rainbow bladder-weed (MT: iċ-ċistosejra kaħla; SN: Cystoseira amentacea) is common on exposed, unpolluted shores, while flat bladder-weed (MT: iċ-ċistosejra tal-friegħi ċatti; SN: Cystoseira compressa) occurs in moderately polluted conditions.

The upper infralittoral on exposed shores is also characterised by species of Cystoseira schiffneri v. tenuiramosa and common sargasso-weed (MT: is-sargassu komuni; SN: Sargassum vulgare). The latter can grow where nitrate / sulphate levels are rather high.

Cystoseira forests often exhibit a four-storeyed structure. This consists of:

  1. a basal storey of encrusting species (e.g. Peyssonnelia spp.);
  2. a second storey with low growing erect species and shrubby forms such   as Udotea (MT: l-imrewħa tal-baħar; SN: Udotea petiolata [Flabellia   petiolata])  and the green alga Dascycladus vermicularis, and;
  3. a third storey with tall forms of larger plants (e.g. Dictyopteris), and;
  4. the large Cystoseira forming the last layer.

A multitude of microhabitats occurs within these algal beds, supporting a very rich flora and fauna. Algal beds provide habitats for a large number of invertebrates and fishes. Such biotas are distributed among the three different regions of the forests: the surface canopies, the sub-canopy and the substratum.

Some organisms actually burrow into the rocks surrounding the plants (e.g. some sponges and bivalves). The holdfasts of the larger algae and the actual surface of the substratum again provide another type of microhabitat and in many sessile animals are found here. Moreover the algae themselves provide a surface for attachment of other algae (epiphytes) or sessile fauna (such as bryozoans). Additionally some swimming animals feed shelter or lay their eggs in the algal beds (e.g. many fish and copepods).

c) Soft bottom assemblages

Soft bottom assemblages are mainly dominated by sea grasses particularly the Neptune seagrass (MT: l-alka; SN: Posidonia oceanica) and the lesser Neptune seagrass (MT: l-alka rqiqa; SN: Cymodocea nodosa). Soft bottom assemblages differ from hard bottom ones in a number of ways: organisms mostly live in the substratum; except for seagrasses there is little or no fixed vegetation; the environment is more structurally and spatially uniform; the granulometry (particle size) has a large effect on organisms; organisms can be subdivided in two feeding groups: suspension feeders and deposit feeders.

Wave action produces a coarse and well-sorted (i.e. low variation in particle size) sediment. Large waves lift these surface sediments into a granular suspension tossed shore ward and then seaward by the passing waves.

The physical stability of the bottom increases with increasing water depth as wave-generated bottom currents decrease. As a result, bottom sediments grade from coarse to fine sand with increasing water depth and decreasing wave disturbance. However, seagrass cover stabilises the bottom sediment by damping the direct effect of waves and currents.

d) Seagrass meadows

Seagrass meadows are perhaps the most important natural marine habitat type in the Maltese Islands in terms of productivity and with respect to providing shelter and a place for breeding and feeding for a number of marine organisms.

Soft bottoms occurring in shallow and sheltered waters (5-10m) mainly consist of Cymodocea nodosa meadows, usually in the form of sparse stands with patches of sand in between, and in certain localities the red seagrass Halophila stipulacea (a red sea migrant that is locally restricted to two localities).

In deeper water, meadows consisting of the Neptune seagrass (MT: l-alka; SN: Posidonia oceanica) – species is endemic to the Mediterranean – take over. These are amongst the most important marine ecosystems in the Mediterranean in view of their productivity, high species-richness and their functional role in stabilising sediments, nutrient cycling and as refuges, breeding, and nursery grounds for a number of marine species. In the Maltese Islands, they are found in a reticulate or continuous meadow type.

e) Posidonia ‘barrier reefs’

This is the rarest type of the Posidonia meadow locally, where a mass of Posidonia rhizomes together with high level of sediment form a thick bank or ‘reef’ several metres above the level of the bottom; its distribution is very restricted in the Maltese Islands.

4. Circalittoral

The circalittoral zone extends from the lower limit of the infralittoral down to the maximum depth where multicellular photosynthetic forms can exist; in practice this is about 200 m and light intensity, at such depths, is very low.

On hard substrata, the circalittoral is dominated by attached forms, such as encrusting algae, tubeworms, bryozoans, sponges and corals. This same assemblage of species is also found in shallower water, where environmental conditions mimic those of the circalittoral zone, for example in deep submarine caves. On the other hand, soft circalittoral substrata are characterised by burrowing animals (e.g. heart urchins) or those that live on (e.g. brittle stars and sea cucumbers) or partly embedded in the sediment (e.g. sea pens and soft corals).

a) Coralline communities

The most characteristic of Mediterranean circalittoral communities is the coralgal (coralligene, coralligenous). This consists of more or less massive bioconstructions formed by coralline algae, such as Mesophyllum lichenoides, Neogoniolithon mamillosum and Peyssonnelia rosa-marina. This displays a complex architecture with numerous hollows, caverns and crevices and becomes settled by a rich zoobenthos dominated by sponges, hydroids and bryozoans; this may either form massive reefs composed of accretions of encrusting calcareous algae or maerl composed of nodules of free-living calcareous algae.

b) Mäerl communities

Mäerl beds consist of loose lying, living or dead, coralline red algae, usually aggregated into masses on shell gravel mixed with coarse sand. The most common mäerl-forming species are the mäerl coralline algae (MT: il-korallina tar-ramel ħaj), such as Lithothamnion corallinoides, L. minervae and Phymatholithon calcaraem. These are slow-growing and, when dead, the accumulation of their calcareous skeleton forms mäerl deposits. These provide attachment to a variety of algae, particularly the green algae Udotea ssp. (MT: l-imrewħa tal-baħar; SN: Flabellia petiolata;), and the red algae Vidalia ssp. (MT: il-vidalja; SN: Osmundaria volubilis;). Very productive and large mäerl grounds exist towards the Northeast of Malta.

Other links

The term ‘species’ refers to a group of organisms that are genetically related and capable (or have the potential) of interbreeding under natural conditions to produce fertile offspring. Consequently, such groups of organisms have common distinctive features.

The Maltese Islands support a diverse array of indigenous terrestrial, freshwater and marine species. The rich species diversity of the Islands, also taking into account species abundance, is essential to maintain healthy ecosystems and an overall healthy environment.

What is an endemic species?

An endemic species is a native species that is only found in a given region or location and nowhere else in the world. Hence, a species found in Malta is referred to as a Maltese endemic species.

Flora

Maltese cliff-orache
Maltese cliff-orache

Vascular plants, also known as tracheophytes, are the most studied and most taxonomically diverse group in Malta. The indigenous flora amounts to some 1,200 species of flowering plants, which include various endemics. For example, the Maltese plant endemics Maltese rock-centuary (MT: widnet il-baħar; SN: Cheirolophus crassifolius), Maltese cliff-orache (MT: il-bjanka tal-irdum; SN: Atriplex lanfrancoi) and Maltese everlasting (MT: is-sempreviva ta’ Għawdex; SN: Helichrysum melitensis) are included in the IUCN publication, “The top 50 Mediterranean island plants – Wild plants at the brink of extinction, and what is needed to save them” since they are critically endangered. In fact, they are strictly protected by national and international legislation, and apart from being included as species of European Community Importance, Special Areas of Conservation (SACs) have also been designated to further safeguard these species and their habitat.

Worth mentioning are the orchids, known to most in Maltese as l-orkidi or l-orkidej (amongst other common names), which are amongst the most interesting and fascinating flowering species. Despite the Maltese Islands’ small size, over 40 orchid species are known to occur. A number of these are endemic species, such as the Maltese pyramidal orchid (MT: l-orkida piramidali ta’ Malta; SN: Anacamptis urvilleana) and Maltese spider orchid (MT: il-brimba sewda; SN: Ophrys melitensis), whilst a good number are confined to the Central Mediterranean Region. The latter includes Southern Italy, Sicily and its surrounding islands, and Tunisia and its surrounding islands.

Fauna

In view of the local indigenous fauna, the Maltese Islands are rich with an immense diversity of insects (probably over 3,200), and new records are continually being discovered every year. With regard to vertebrates; whilst a significant number of birds (ca. 25 breeding; over 200 migrating) and marine bony fish (over 200) occur, the number of mammals is very limited – less than 30 species. The latter is mostly represented by bats and cetaceans, with large land mammals being entirely non-existent nowadays.

Maltese wall Lizard
Maltese wall lizard

One of the reptilian species that has received most attention at a national level is the subendemic Maltese wall lizard (MT: il-gremxula ta’ Malta; SN: Podarcis filfolensis maltensis), found on the main islands of Malta, Gozo and Comino. Other endemic subspecies are confined to islets:

  • One to Filfla (EN: Filfla wall lizard; MT: il-gremxula ta’ Filfla; SN: Podarcis filfolensis filfolensis);
  • One to St. Paul’s Islands (EN: Selmunett wall lizard; MT: il-gremxula ta’ Selmunett; SN: Podarcis filfolensis kiselbachi – possibly extinct), and;
  • One to Fungus Rock (EN: Fungus Rock wall Lizard; MT: il-gremxula tal-Ġebla tal-Ġeneral; SN: Podarcis filfolensis generalensis);
  • It is also possible that a further subspecies is present on the islet of Cominotto.

 

In view of the fact that the Maltese Islands lack mountains and rivers, freshwater ecosystems are locally very scarce. Subsequently, freshwater organisms are too very limited in number, with the rarest being the Maltese freshwater crab (MT: il-qabru; SN: Potamon fluviatile lanfrancoi); as well as only one native amphibian, the painted frog (MT: iż-żrinġ; SN: Discoglossus pictus pictus) and one native fish, the Mediterranean killifish (MT: il-bużaqq; SN: Aphanius fasciatus). The latter is known from freshwater or brackish water habitats.

Marine fauna, in contrast, are particularly diverse, with a considerable variety of ringed worms (ca. 85 recorded; more occur) and molluscs (ca. 883 recorded; more occur). Of particular interest are the fauna of the open sea, which includes various cetaceans and marine turtles, and a variety of sharks and rays. Endemic marine organisms are also present, such as the Maltese top-shell (MT: il-gibbula ta’ Malta; SN: Steromphala nivosa) and the Maltese ray (MT: ir-raja ta’ Malta; SN: Leuciraja melitensis).

Maltese top-shell
Maltese top-shell

 

For further information, statistics and updates on Maltese flora and fauna, refer to the following State of the Environment Report chapters:

And:

Other links

 

 

The Environment and Resources Authority (ERA) has prepared an information document to support green infrastructure in Malta, in line with the National Biodiversity Strategy and Action Plan (NBSAP)​ as adopted by the Government of Malta.

Green Infrastructure (GI) relates to landscaping and its planning in natural, rural and urban settings, and promotes greener approaches in landscaping and land management. One of the main environmental challenges we face today is the small size of the country and the loss of biodiversity associated with degradation. The promotion of green infrastructure as well as several on-going and planned green infrastructure projects aim at expanding green open spaces in both rural and urban settings and reducing carbon and water footprint.

This is a relatively new concept in Malta. GI is seen as a solution aimed at bettering quality of life, at improving water and air quality, and maintaining biodiversity. This has multiple other social, health and economic benefits, besides the more obvious ecological benefits.

Examples of Green Infrastructure components
Examples of Green Infrastructure components

The NBSAP’s measures on GI

Measure EN4 of the NBSAP states that components for building a GI (as a holistic framework for resource planning and conservation) are to be strengthened to improve the ecological coherence of Natura 2000, via integration into the broader landscape (to curb habitat fragmentation), improve adaptation to climate change, and aid in integrated flood management.

Measure SI6 also notes the role and importance of the principles of integrated planning to devise measures to safeguard the wider countryside from urban sprawl, to support urban biodiversity and to contribute towards the EU priorities on a GI.

Investing in GI

The information document aims to provide an informative account of the GI concept. It is intended to help promote and motivate additional initiatives at various levels, in line with relevant and applicable national laws. Throughout the information document, ERA underlines that GI needs to be developed whilst taking into account both the natural and social aspects to achieve a better quality of life.

The main objectives of the proposed information document are:

  • to provide a concise and informative account of the concept of GI and   promote and motivate additional initiatives at varying levels;
  • to address what constitutes GI and its related benefits, with an overview of national policies that currently promote GI implementation in Malta;
  • to explore EU funding instruments that include GI as an eligible priority for investment;
  • to provide case examples of GI-related initiatives and projects of a local, national or transboundary nature;
  • to assist in the development of a Green Infrastructure Action Plan for the Maltese Islands.

In relation to specific examples of the integration of green infrastructure in spatial planning processes in Malta, more information can be accessed from the following links: Green Infrastructure in Malta and the Green Infrastructure Information Document. The latter is a supporting information document, which has been adopted earlier this year following public consultation, with the aim to promote further green infrastructure in Malta.

For more information kindly contact [email protected]​.

Other links

The below procedure is relevant for appeals against a decision of ERA to the Environment and Planning Review Tribunal (EPRT) under Article 63 of the Environment Protection Act (Cap 549).

Time Limits

  1. Appeals from decisions of ERA must be made within 30 days from the date of publication or notification of the decision;
  2. ​Appeals from a notice must be made within 15 days of the receipt of the stop and compliance order.

Where a request for a reconsideration of a decision by the Environment and Resources Authority has been made within the time limit set above, the 30 day period for bringing an appeal begins when the Authority’s reply on the reconsideration is received.

Form of Appeals

Requests for appeals must:

  1. Include the correct fee;
  2. Make reference to the Authority’s decision or notice appealed from, with a copy of such decision or notice;
  3. Distinctly state the heads of the decision complained of under different headings, together with reasons under each heading for which the appeal is entered;
  4. State specifically the manner in which it is desired that the decision be varied under each heading; and
  5. Include all documentation which is relevant for the grounds of appeal.

If witnesses are required, the appeal must indicate the names and addresses of the witnesses they intend to produce in evidence, and state in respect of each one of them the facts they intend to establish through their evidence.

Submission of Appeal

The request for appeal should be either submitted in hard copy and by hand directly to the Environment and Planning Review Tribunal’s Secretary, St. Francis Ditch, Floriana, or sent by post to Environment and Planning Review Tribunal, PO Box 172, Marsa.

Interim relief

A party may request suspension of an action if it relates to a potentially irreversible action or an action that may potentially be of significant damage to the environment. Such suspension may be approved by the EPRT pending final decision, if the EPRT deems that this would be in the interest of avoiding any likely significant or irreversible effects or implications on the environment or for similarly justified reasons.

Court of Appeal

An appeal from decisions of the Tribunal shall lie to the Court of Appeal (Inferior Jurisdiction) on points of law. The appellant or any other persons who participated in the appeal may appeal from decisions of the Tribunal.

An appeal to the Court of Appeal (Inferior Jurisdiction) must be submitted within twenty days from when the decision of the Tribunal was delivered in public.

The Freedom of Access to Information on the Environment Regulations (S.L. 549.39) have directly incorporated the definition of environmental information from the European Directive 2003/4/EC on public access to environmental information (which in turn closely follows, but expands upon, the definition in the Convention).

It is important to understand the distinction between environmental information that would fall within the scope of the Regulations, and personal data, which falls under the Data Protection Act 2001, in order to deal with requests/complaints lawfully.

The following aims to provide an understanding as to what constitutes environmental information, however, it should be noted that this guidance is not intended to be exhaustive.

As per Article 2 of the above regulations, ‘Environmental information’ means any information in written, visual, aural, electronic or any other material form on:

(a) the state of the elements of the environment, such as* air and atmosphere, water, soil, land, landscape and natural sites including wetlands, coastal and marine areas, biological diversity and its components, including genetically modified organisms, and the interaction among these elements;

(b) factors, such as substances, energy, noise, radiation or waste, including radioactive waste, emissions, discharges and other releases into the environment, affecting or likely to affect the elements of the environment referred to in paragraph (a);

(c) measures (including administrative measures), such as policies, legislation, plans, programmes, environmental agreements, and activities affecting or likely to affect the elements and factors referred to in paragraphs (a) and (b) as well as measures or activities designed to protect those elements;

(d) reports on the implementation of environmental legislation;

(e) cost-benefit and other economic analyses and assumptions used within the framework of the measures and activities referred to in paragraph (c); and

(f) the state of human health and safety, including the contamination of the food chain, where relevant, conditions of human life, cultural sites and built structures inasmuch as they are or may be affected by the state of the elements of the environment referred to in paragraph (a) or, through those elements, by any of the matters referred to in paragraphs (b) and (c).

More information on the above can be found further down on this page.

Information can include – or be found in:
  • Documents, leaflets, reports, books, notes, data sets, memos, meeting notes in fact anything written down and pictures, maps, plans, designs, models, video, posters, diagrams, sketches, graphs, illustrations
  • Tape recordings, recorded presentations, compact discs
  • Any type of computer file, word-processor file, database, spreadsheet, computer models (incl. 3-D models), emails, archived web pages/sites, temporary or cached files, still images, video images, computer generated images
  • Any other material form – that is, other forms not widely available but does not include – information that does not yet exist but that could be created by the manipulation of existing information. In other words authorities are only obliged to release information held and are not required to research or manipulate data to create new information.

Example: If the Environment and Resources Authority is asked for a graph of air quality for the last 12 months, but it only holds the raw data and no graph has been created, it would only be required to release the data, it would not be required to create the graph.

Information is not restricted by geographical location.

(a) the state of the elements of the environment, such as* air and atmosphere, water, soil, land, landscape and natural sites including wetlands, coastal and marine areas, biological diversity and its components, including genetically modified organisms, and the interaction among these elements;

*use of ‘such as’ – this indicates that the elements listed here are purely representative, it is not suggesting that these are the only things which should be considered as elements – ‘such as’ also appears in paragraphs 2(1)(b) and (c).

  • The state of the elements – this includes the physical, biological and chemical characteristics – this is not limited to current conditions but includes past and predicted future conditions.
  • Air and atmosphere – the atmosphere is the collection of gases that surround the earth and that are retained by the earth’s gravitation. The atmosphere extends up to approximately 660km in altitude, the distinction between air and atmosphere suggests that air refers to air within buildings and structures, underground, indoors, in the workplace and elsewhere where it is confined in some way. Air and atmosphere should not always be taken to mean ‘air’ as a whole and in its entirety, the gases, which make up the atmosphere and air are also included separately, for example, carbon dioxide, oxygen etc.
  • Water – will mean water in all its forms (vapour, liquid) and is not limited by scale (from oceans to the smallest droplet), it includes water underground or on the surface, water in natural settings (harbours) and man-made (ponds).
  • Soil – soil can be taken to mean the unconsolidated mineral or organic material top layer of the earth’s surface in which plants grow.
  • Land – land can be described as all land surfaces, buildings, land covered by water, and underground strata. By including underground strata the implication is that land covers natural minerals and deposits such as limestone.
  • Landscape – Landscape is defined by the European Landscape Convention 2000 as, ‘an area, as perceived by people, whose character is the result of the action and interaction of natural and/or human factors’. A more technical definition may be of more use when attempting to ascertain what landscape will mean in terms of environmental information. A specialist environmental definition of landscape is, ‘the traits, patterns, and structure of a specific geographic area, including its biological composition, its physical environment, and its anthropogenic or social patterns. An area where interacting ecosystems are grouped and repeated in similar form’.
  • Natural sites, including wetlands, coastal and marine areas – ‘natural sites’ recognises the importance of protected areas such as Sites of Special Scientific Importance and Areas of High Landscape Value. However, a site will not need to have been designated to qualify as a ‘natural site’. All natural sites that are ascribed a specific value, local value, special natural or historic value can be taken to be a natural site. ‘Natural’ does not necessarily mean devoid of human interference, the management of a site will not preclude it from being classified as natural.
  • Biological diversity and its components – Article 2 of the Convention on Biological Diversity 1992 defines the term as, ‘the variability among living organisms from all sources including, inter alia, terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are part; this includes diversity within species, between species and of ecosystems’. The components of biodiversity then must be taken to mean, genetic diversity – the genetic composition of a species (genes, DNA, etc.), species diversity – every living thing, every single species (plant, animal, bacteria, virus’s etc), ecosystem diversity – all habitats whether natural or man-made (from arctic wilderness to urban sprawl). In addition, biological diversity and its components should not be limited in time, for instance, it will include dead and extinct individual organisms and species.
  • Genetically modified organism’ (GMO) – UNECE describe GMOs as ‘any organism with the exception of human beings that possesses a novel combination of genetic material obtained through the use of modern biotechnology’. In addition, the European Community has used the following definition, ‘genetically modified organism (GMO) means an organism, with the exception of human beings, in which the genetic material has been altered in a way that does not occur naturally by mating and/or natural recombination.
  • The interaction among these elements – this recognises that no one aspect of the environment can be fully understood in isolation and that the interaction between the elements is just as important as the elements themselves.

 

(b) factors, such as substances, energy, noise, radiation or waste, including radioactive waste, emissions, discharges and other releases into the environment, affecting or likely to affect the elements of the environment referred to in paragraph (a);

  • Factors – factor in this sense should simply be taken to mean, something that has an affect on an element of the environment. It is important to note at this stage that it is possible for an ‘element’ to be a ‘factor’, for instance, water will become a ‘factor’ in an incidence of flooding. Equally, a ‘factor’ may also be an ‘element’.
  • Substances – includes all material/matter, natural or synthetic, for example, chemicals, pharmaceuticals, hormones, antibiotics, oil, particulates, gases, liquids – a European definition of substances states, ‘Substances means any chemical element and its compounds, as they occur in the natural state or as produced by industry, whether in solid or liquid or gaseous form’.
  • Energy – can be expressed in traditional scientific language, thermal, chemical, electrical, kinetic, potential, light, and sound. Common usage for the term centres on power generation, oil-fired, coal-fired, gas-fired, and nuclear energy and renewable energy (wind power, solar energy etc). However, energy is not restricted to large-scale power plants and electricity generation. It also includes, heat (heat, in the form of hot water emitted into the sea for example, can have a drastic affect on the plants, animals and fish living in the vicinity). Energy will include sunlight, geothermal, radio waves, microwaves etc.
  • Noise – although noise is itself energy, it is included here separately. Noise is subjective, localised and transient. A simple dictionary definition of noise is, ‘a sound, especially one that is loud, unpleasant, or disturbing’. Noise also includes vibrations (Environmental Protection Act, 2001).
  • Radiation or waste, including radioactive waste – radiation can be natural (sun, cosmic rays, radioactive minerals), or man-made. There are two main types of radiation, ionising and non-ionising. Ionising radiation is either particulate (alpha, beta, neutrons) or electromagnetic (x-rays, gamma rays). Non-ionising radiation consists of electromagnetic radiation from extremely low frequency (ELF) to ultraviolet (UV).
  • Waste – waste can be broadly interpreted to mean anything discarded. This would include household waste, industrial waste and commercial waste (which are collectively described as Municipal Solid Waste (MSW)) and, construction and demolition wastes, agricultural wastes, sewage sludge and dredged spoils, and Special Waste, hazardous, toxic waste. The waste sector is highly regulated and the definition of waste can be controversial, for instance, if ‘waste’ is to be used to generate power through incineration, it has been argued that this therefore allows it to be categorised as fuel as opposed to waste (at the time of writing, it is classified as waste until full recovery is complete, i.e. combustion is complete). There are many categories of waste, and special rules/prohibitions apply to transboundary movement of wastes.
  • Radioactive waste – radioactive materials are used in many situations, settings and industries and are more widespread than you might think. Radioactive materials are used in common products such as the luminous dials on watches, ceramic glazes and smoke detectors. Radioactive waste is generated by hospitals, pharmaceutical industry, research establishments, and of course the nuclear power generation industry. Radioactive waste is categorised as either High-level waste (HLW), Intermediate-Level Waste (ILM), Low-Level Waste (LLW) or Very-Low-Level Waste (VLLW).
  • Emissions, discharges and other releases – a common, widely quoted definition of emission comes from the European IPPC Directive8, ’emission shall mean the direct or indirect release of substances, vibrations, heat or noise from individual or diffuse sources (…) into the air, water or land’. ‘Discharges’ is defined in the Environment Protection Act, 2001 as including emissions, deposit, dumping, disposal, addition or introduction into the environment of a substance or energy, directly or indirectly from any point source or diffuse source, whether stationary or mobile, and whether caused or permitted intentionally or otherwise and whether continuous or intermittent or once only’. Releases – normally includes releases a) in relation to air, any emission of the substance into the air; (b) in relation to water, any entry (including any discharge) of the substance into water; (c) in relation to land, any deposit, keeping or disposal of the substance in or on land…’
  • Affecting or likely to affect the elements of the environment referred to in (a) – this is a qualification to the understanding of factors. Information about the factor would not be environmental information unless the factor is affecting or likely to affect the elements of the environment, although it is hard to imagine when a factor would not have such an effect. There is no indication that the effect must be detrimental or large scale, therefore, the effect may be minimal or negligible. Note use of the words ‘likely to’, this is a stronger threshold than is found in (f) below (may be affected by) and suggests that there must be a degree of evidence to suggest that the factor would have the supposed effect. ‘Likely to’, can be interpreted by way of reference to the balance of probabilities. This section of the definition deals with two aspects – measures and activities.

 

(c) measures (including administrative measures), such as policies, legislation, plans, programmes, environmental agreements, and activities affecting or likely to affect the elements and factors referred to in paragraphs (a) and (b) as well as measures or activities designed to protect those elements;

  • Measures – measures will comprise of steps taken to ensure an effect (past, present or future), the methods, processes or instruments used. Administrative measures are specifically mentioned but the interpretation of measures is not restricted to those of an administrative nature. Further explanation is offered by reference to particular examples. Measures will also encompass regulatory, economic and voluntary tools, such as Acts of Parliament, local by-laws, taxes, fines, charges, and voluntary agreements. It should be noted that, for example, policies will not be restricted to ‘environmental’ policies, but will also take into account development policies, economic policies, transport policies, health and safety polices etc, if they satisfy the qualifying condition (see below). This is also true of environmental agreements, even though ‘environmental agreements’ (which will include not only international agreements between states, but also regional or local agreements and agreements between the public and private sectors) are specifically mentioned, other types of agreements may be relevant.
  • Activities – activities are not described in the definition, however, the Aarhus Implementation Guide refers to ‘…decisions on specific activities, such as permits, licenses, permissions…’ Therefore, if the permit can be taken to be the decision to allow the activity to proceed, the activity must be the process, operation, actions, procedure undertaken for which a permit is required. However, it should not be assumed that a permit or authorisation is required in order for an action to be considered an activity. The interpretation of activities is likely to be broad and may include, for example, the construction of a bypass, a new runway, or agricultural practices.
  • Affecting or likely to affect the elements and factors referred to in (a) and (b) as well as measures or activities designed to protect those elements – as with the previous section there is a qualifying statement associated with measures and activities. The measure or activity must affect, or be likely to affect either, the elements of the environment, or the factors. Or additionally, in this case, be specifically designed to protect them. In other words, there must be a link between the measure/activity and an element/factor.

 

(d) reports on the implementation of environmental legislation;

This constitutes for instance, any reports reviewing or monitoring, the operation, performance, success or failure of environmental legislation.

 

(e) cost-benefit and other economic analyses and assumptions used within the framework of the measures and activities referred to in paragraph (c); 

This part of the definition includes within the definition of environmental information economic and financial information bringing the Directive in line with the Aarhus Convention. The Convention mentions, ‘cost-benefit and other economic analyses and assumptions used in environmental decision-making’ (Article 2(3)(b)). The desire to include economic and financial information in the definition stems from the recognition that it is important to integrate environment and economic considerations in decision-making (also social, see below). It is notoriously difficult to cost environmental aspects of a project, for example, what value can we place on a rare species? In the past when developments were planned, these environmental aspects were often ignored. However, now it is recognized that these considerations are vitally important. As it is so difficult to adequately account for environmental aspects which have no market value, it is essential that people have access to information as to how those decisions were taken. This section is qualified by referring back to paragraph (c) measures and activities, therefore, the economic and financial aspects taken into account during the framing of measures or activities.

 

(f) the state of human health and safety, including the contamination of the food chain, where relevant, conditions of human life, cultural sites and built structures inasmuch as they are or may be affected by the state of the elements of the environment referred to in paragraph (a) or, through those elements, by any of the matters referred to in paragraphs (b) and (c).

  • The state of human health and safety, including contamination of the food chain – the state (physical, biological, chemical – as in paragraph (a)) of human health and safety, there is no suggestion that this applies to individuals, therefore, information falling under this category refers to collective health and safety. This may include information on diseases and conditions caused or affected by an element, factor, measure, or activity. This could therefore include information on the recent outbreak of SARS, , asthma, asbestosis, etc. Special mention has been made of the contamination of the food chain, this follows concerns over BSE and other health scares.
  • Conditions of human life – this aspect acknowledges the connection between social and environmental factors. As with economic factors, social and environmental concerns cannot be viewed in isolation, social and environmental factors will affect each other. This section therefore, allows relevant social information to be included. As with human health and safety this is not intended to apply to information on an individual scale, but rather large-scale factors, for example, conditions of human life can be interpreted to include information on housing, poverty, employment, social welfare, heating, access to clean water, sanitation, healthcare, education, justice, etc. if there is a link via (a), (b) or (c).
  • Cultural sites – cultural sites will constitute places which are ascribed a particular literary, educational, artistic, anthropological, historical value, religious, or social significance. For example, World Heritage Sites, scheduled monuments, listed buildings, archaeological sites, gardens, buildings. These sites will include modern as well as historical, and urban as well as rural locations.
  • Built structures – As mentioned above, buildings in a general sense are included as part of the definition of land as an element, therefore, built structures allows a focus on particular buildings specifically, as well as other infrastructure. This could include pylons, fences, bridges, roads, phone masts, tunnels. Other built structures may include cars, trains, planes, boats, ships, etc. The definition does not specifically refer to human built structures and therefore it is not unreasonable to suppose that bird’s nests, for example, will also qualify as built structures.
  • Inasmuch as they are or may be affected by the state of the elements of the environment referred to in paragraph (a) or, through those elements, by any of the matters referred to in paragraphs (b) and (c) – This paragraph is also subject to qualifying remarks, this is necessary in order to place boundaries on what is considered environmental information as opposed to social or economic information for example. However, it should be noted that this qualification is not the same as the ones used previously. The earlier qualification referred to ‘affecting or likely to affect’, whereas this refers to ‘as they are or may be affected by’. The strength of this test is therefore, weaker. It will not require as much certainty. There need only be a suspicion of an effect occurring, not as much evidence will be required as would be the case for an effect ‘likely to’ occur.

The second pillar of the Aarhus Convention is public participation in decision-making related to the environment. The Convention provides a framework for the public to take part in decisions relating to the environment at an early stage, and thus making the project, development or plan more likely to be acceptable, more sustainable and less damaging to the environment.

Public participation is provided for at EU level through the Directive on public participation in respect of the drawing up of certain plans and programmes relating to the Environment and amending with regard to public participation and access to justice Council Directives 85/337/EEC and 96/61/EC (2003/35/EC). Malta transposed the provisions of this Directive into Maltese law by Article 469A of the Code of Organization and Civil Procedure (Cap. 12)  and the following Legal Notices:

• Plans and Programmes (Public Participation) Regulations (S.L. 549.41);
Integrated Pollution Prevention and Control (IPPC) Regulations (S.L. 549.77);
Freedom of Access to Information on the Environment Regulations (S.L. 549.39);
Control of Major Accident Hazard Regulations (S.L. 424.19);
Environmental Impact Assessment Regulations (S.L. 549.46);
European Pollutant Release and Transfer Register Reporting Obligations Regulations (S.L. 549.47);
Strategic Environmental Assessment Regulations (S.L. 549.61)​.

Public consultation on permits, plans and programmes issued by the Environment and Resources Authority can be viewed here.

Information about planning permissions and plans is available on the Planning Authority website.

All documents issued by Government for public consultation are available here.

​The Freedom of Access to Information on the Environment Regulations (S.L. 549.39)​ give people the right to access environmental information from the competent authority, which is the Environment and Resources Authority. Below is a list of frequently asked questions in relation to making a request for environmental information, the replies to which can be viewed further down on this page.​​

    1. Can I make a request for environmental information?
    2. Who can I request environmental information from?
    3. How can I make a request?
    4. What happens after I have made a request?
    5. How long does the competent authority have to respond to my request?
    6. Do I have to pay for the information?
    7. Does the competent authority only have a duty to disclose information which it produced?
    8. Is there any reason why I should not receive all the information I requested?
    9. What happens if the competent authority does not hold part/all of the information I requested?
    10. What if I am not satisfied with the information provided?

1. Can I make a request for environmental information?

Yes. The right is not restricted; any person can request environmental information (this includes organisations as well as individuals).

2. Who can I request environmental information from?

Requests can be made to the Environment and Resources Authority, which acts in its own name or on behalf of other public authorities, or on behalf of any natural or legal person performing public administrative functions in relation to the environment.

3. How can I make a request?

Requests for environmental information can be made in writing (hard copy/electronic). The competent authority has a designated enquiry line, e-mail/post address.

4. What happens after I have made a request?

The competent authority has a responsibility to provide ‘assistance’. For example, if a request is too general, the competent authority may contact you to try to determine what information is required.

Although authorities have a responsibility to assist you, they have no right to ask why you want the information. However, if you volunteer that information, it may help the competent authority provide the most appropriate information. Even if the authority does know the purpose of your request, they are not able to take this into consideration when determining whether any information cannot be disclosed.

5. How long does the competent authority have to respond to my request?

The competent authority must respond as soon as possible and at the latest within 30 days, except in circumstances where the information requested is particularly complex and voluminous. In such cases the time limit can be extended by a further 30 days. If the time limit is extended, the competent authority must notify you of this delay within 30 days of your initial request, and state when they believe they will be able to respond in full.

6. Do I have to pay for the information?

The competent/public authority cannot make a charge for allowing you: (a) access to any public registers or lists of environmental information, or (b) to examine the information (at a place chosen by the competent/public authority).

For all other situations, charging is at the discretion of the competent authority (any charge must be reasonable).

There is also a requirement for the competent authority to publish a schedule of charges (for example the price per sheet of photocopying), information on the circumstances in which charges may be made or waived, and where advance payment will be required.

7. Does the competent authority only have a duty to disclose information which it produced?

No. Under the regulations, any environmental information the competent/public authorities hold can potentially be disclosed if requested, it is irrelevant whether that authority produced the information or whether it owns it.

8. Is there any reason why I should not receive all the information I requested?

There are certain restrictions on the right to access environmental information. These restrictions are applicable to certain categories of information (e.g. national security information). However, even if the information falls within one of the categories, if it is in the public interest for the information to be disclosed, it will be. If the competent authority determines that the information can not be released because it falls within one of these categories and there is a stronger public interest in withholding the information than releasing it, they must inform you of this in writing or electronically and explain their decision (including their reasons why it is in the public interest to withhold the information).

9. What happens if the competent authority does not hold part/all of the information I requested?

When a request for information is received, the first task for the authority is to determine whether it holds the information.
If the competent authority does not hold any of the information requested but believes that another public authority does hold it, it must either:

    • request the authority which they are confident holds the information and send you a notice stating that they do not hold the information but they have requested the appropriate authority on your behalf to release the information, or
    • if the authority does not know who may hold the information requested, they will simply send you a refusal notice stating that they do not hold the information.
    • if the competent only holds part of the information, it must provide the information it holds, and either: request the authority which they are confident holds the remainder of the information and send you a notice stating which information they do not hold and for which information they have requested the appropriate authority on your behalf to release the information, or
    • if an authority does not know who may hold the remainder information, they will simply send you a refusal notice stating which information they do not hold.

10. What if I am not satisfied with the information provided ?

You have a right to submit an appeal against a decision, to the Environment and Planning Review Tribunal in terms of Article 63 of the Environment Protection Act of 2016 (Act I of 2016). Any action of any public authority may be challenged in court under the provisions of Article 469A of Chapter 12 of the Laws of Malta. You should always however seek legal assistance in this regard. Alternatively recourse may be made to the Commissioner for Environment and Planning within the Office of the Ombudsman.

The first pillar of the Convention is implemented under EU law by Directive 90/313/EEC, which was replaced by Directive 2003/4/EC on public access to environmental information. Malta transposed Directive 2003/4/EC granting the public the right of access to environmental information via the Freedom of Access to Information on the Environment Regula​tions (S.L. 549.39)​.

As a citizen you have the right to access environmental information held by public authorities upon request. You do not need to provide a reason for your request. Furthermore, public authorities are obliged to actively collect and disseminate certain types of environmental information. Your request may only be refused on the basis of limited permitted exceptions, such as the adverse affect on public security.

    • A request for information on the environment can be written, electronic or hardcopy.
    • A request must usually be answered within 30 days of receipt of the request if the information is readily available; however this time period can be extended by a further 30 days if the information requested is complex and voluminous.
    • If the competent authority receives a request which it believes is too general, the authority will contact the applicant as soon as possible to try to determine specifically what information it is that he/she would like and give assistance to be able to do so.
    • When making a request for information an applicant may state a preference as to the form/format in which they would like the information to be provided e.g. hardcopy/electronic etc.
    • When ERA as the competent authority does not have the requested environmental information, it shall forward the applicant’s request to the public authority holding such information to obtain the information on his behalf and shall provide this to the applicant within the time-frames stipulated above.
    • The competent authority may charge a reasonable fee for disclosing information; however the authority cannot charge an applicant to inspect the information on site such as public registers or lists.
    • Inevitably there is information for which there would be adverse consequences should it be released, for example the nesting location of a rare bird species. To prevent such an event happening, the Freedom of Access to Environmental Information Regulations contain a number of exceptions which would allow public authorities to withhold that information.
    • If the competent authority refuses to disclose all/part of the information requested, that authority must state, in writing, what exception the information falls under and justify their decision that the exception should be applied.

Links

Subsidiary Legislation 549.176 – Extended Producer Responsibility (Fishing Gear Containing Plastic) Regulations, published by Legal Notice 131 of 2025 [download], establishes the extended producer responsibility (EPR) obligations for producers of fishing gear containing plastic.

Under these regulations, producers of fishing gear containing plastic are required to:

  • Join an authorised Producer Responsibility Organisation (PRO) for Fishing Gear containing Plastic, and
  • Register with the Environment and Resources Authority (ERA) and renew such registration as necessary.

These regulations give effect to national obligations under Directive (EU) 2019/904 (Single-Use Plastics Directive), particularly aiming to reduce the environmental impact of abandoned, lost, or otherwise discarded fishing gear.

Application Forms:

Registration & Renewal Form for Producers:

Form M – Registration Form as a Producer of Fishing Gear containing Plastic    Form

Producer Responsibility Organisations (PRO) form:

Application to operate a PRO for Fishing Gear containing Plastic.  Form

Terrestrial habitats are based mainly on vegetation types; these are grouped into three main categories:

  1. Mediterranean communities: Part of the succession sequence towards climax communities;
  2. Human-linked communities: Owe their existence to anthropogenic activities;
  3. Other communities: Either specialised to occupy particular habitats, or occupy habitats that are rare in the Islands, or are relics from a previous ecological regime.
The process of succession

Ecosystems are formed by the interactions between a community of living organisms and the physical environment that surrounds them. These ecosystems undergo ecological succession in response to changes in environmental conditions; this is a natural process of change over time that is brought about by progressive replacement of one plant or animal community with another. This process starts with what is called as the “pioneer community”, and eventually leads to the development of a stable and mature community, referred to as the “climax community”. The process of succession can halt at a pre-climax stage when some factor is limiting; such as when the organism needed to bring about the necessary changes that lead to the creation of the following community is absent. Apart from biotic factors (living), limiting factors may also be abiotic (non-living), such as lack of water.

Succession can be of two types:

a) Primary succession: Begins when pioneer species, like mosses and lichens, colonise barren substrate, such as rock, sand or soil, which has never before supported any vegetation.

b) Secondary succession: Occurs in areas where natural vegetation has been disturbed or destroyed. The latter type is generally less species rich.

Natural habitats in the Maltese Islands appear in different stages of ecological succession. In certain localities, it is easy to differentiate between these stages, though in most cases, the habitats occur as a mosaic of the different stages of ecological succession. There are six principal stages of ecological succession in the Maltese Islands; these are relative to Mediterranean type vegetation.

Habitats that form part of the process of succession:

  • Steppe (l-isteppa)
  • Garrigue (ix-xagħri)
  • Phrygana (il-frigana)
  • Pre-desert scrub (il-ġmiem)
  • Maquis (il-makkja)
  • Woodland (il-bosk)

Examples of specialised habitat types:

  • Saline marshlands (bwar salmastri)
  • Freshwater rockpools (l-għadajjar tal-ilma ħelu)
  • Sand dunes (l-għaram tar-ramel)
  • Valley watercourses & riparian communities (il-widien)
  • Caves (l-għerien)
  • Cliffs & screes (l-irdumijiet u s-sisien)

1. Steppe (l-isteppa)

Steppe is considered as the first stage in the ecological succession process. It is derived from maquis and garrigue as a result of some form of degradation, such as that caused by fire or animal grazing. It is widespread, and is characterised by herbaceous plants, especially grasses, such as:

(i) Umbellifers such as the fennel (MT: il-bużbież; SN: Foeniculum vulgare), the Maltese ferule (MT: il-ferla; SN: Ferula melitensis) and the wild carrot (MT: iz-zunnarija salvaġġa; SN: Daucus carota);

(ii) Legumes such as the common vetch (MT: il-ġilbiena sewda; SN: Vicia sativa subsp. nigra), and;

(iii) Tuberous or bulbous species such as the southern star of Bethlehem (MT: ħalib it-tajr żgħir; SN: Ornithogalum narbonense).

This habitat is generally devoid of shrubs, and is mainly comprised of annuals, that is, plants that live up to one year. During the dry season, this habitat type appears dry and impoverished because most plant species will, at the time, exist in the form of seeds. In contrast, the wet season brings about a change in this habitat type, which results in steppe being entirely covered by a large variety of herbaceous plants.

One also finds other types of steppe locally, including some natural ones. These are formed through climatic factors, and include the rocky steppe and the clay slope steppe.

Steppes may also be characterised by the common awn-grass (MT: in-nixxief tal-isteppa; SN: Stipa capensis) and thistles; such as the clustered carline thistle (MT: is-sajtun; SN: Carlina involucrata) and the Mediterranean thistle (MT: ix-xewk abjad; SN: Galactites tomentosa). Geophytes, such as the asphodel (MT: il-berwieq; SN: Asphdelus aestivus ) and the seaside squill (MT: l-għansar; SN: Drimia pancration), are also encountered. Other forms of steppic communities may develop on abandoned agricultural land.

2. Garrigue (ix-xagħri)

The second stage in ecological succession is garrigue. It is characterised by limestone rocky ground with a rugged surface, known as karst, and is heavily exposed to the brute force of the elements. Garrigue is typified by low-lying, usually aromatic and spiny woody shrubs that are resistant to drought and exposure. This type of habitat appears desolate, and is often referred to as wasteland. Nevertheless, it is probably the most species-diverse habitat in the Maltese Islands, and is of great importance not only to biodiversity, but also to ecosystem services.

Garrigue dominated with Mediterranean thyme and sea squill
Garrigue dominated with Mediterranean thyme and sea squill

Various types of garrigue occur; such as the thermo-Mediterranean scrub habitats, characterised by the tree spurge (MT: it-tengħud tas-siġra; SN: Euphorbia dendroides) and African wolfsbane (MT: is-siġra tal-ħarir; SN: Periploca angustifolia). The thermo-Mediterranean scrub communities are sometimes referred to as high garrigues since they usually include shrubs that exceed 0.5m, growing up to 2m in height. Additionally, some garrigue types are very rare, such as those based on species of sage (MT: is-salvja; SN: Phlomis fruticosa) and rockroses (MT: iċ-ċistu; SN: Fumana spp.), and rosemary (MT: il-klin; SN: Rosmarinus officinalis).

On the other hand, the most frequent garrigue species is the Mediterranean thyme (MT: is-sagħtar; SN: Thymbra capitata). It is known from most types of garrigue, and is an important food source for many species, including the Maltese honey bee (MT: in-naħla ta’ Malta; SN: Apis mellifera ruttneri).

In addition to the above, numerous endemic, threatened, rare and protected species thrive in garrigue habitats, such as the:

  • Maltese spider orchid (MT: il-brimba sewda; SN: Ophrys melitensis);
  • Sicilian squill (MT: l-għansal ikħal; SN: Scilla sicula);
  • Southern dwarf iris (MT: il-bellus; SN: Iris pseudopumila);
  • Maltese pyramidal orchid (MT: l-orkida piramidali ta’ Malta; SN: Anacamptis urvilleana), and;
  • two endemic door-snail species (id-dussies tal-irdum; id-dussies ta’ Malta; SN: Lampedusa imitatrix and L. melitensis).

3. Maquis (il-makkja)

Maquis is the stage following that of the pre-desert scrub in the ecological succession. It is usually characterised by small trees and large shrubs, consisting mostly of an evergreen shrub community, reaching a height of up to 5m, often more. It occurs along the sides of valleys, along slopes and other areas, which are inaccessible to man, and relatively sheltered from the wind. Various types of maquis occur, such as those based upon the Myrtle (MT: ir-riħan; SN: Myrtus communis ), and the national tree of Malta, the sandarac gum tree (MT: is-siġra tal-għargħar; SN: Tetraclinis articulata), both of which are very rare and threatened.

Typical trees that populate such habitat include the:

  • Carob Tree (MT: il-ħarruba; SN: Ceratonia siliqua);
  • Olive tree (MT: iż-żebbuġa; SN: Olea europaea);
  • Lentisk (MT: id-deru; SN: Pistacia lentiscus);
  • Fig tree (MT: is-siġra tat-tin; SN: Ficus carica);
  • Almond tree (MT: is-siġra tal-lewż; SN: Prunus dulcis), as well as;
  • Bay Laurel (MT: ir-randa; SN: Laurus nobilis).

As one would perhaps expect, for this habitat to develop and support such trees, it requires enough water and sufficient soil depth.

This habitat type is also rich in plants, namely climbers, including the:

  • Common ivy (MT: il-liedna; SN: Hedera helix);
  • Common smilax (MT: il-pajżana; SN: Smilax aspera);
  • Spiny asparagus (MT: l-ispraġġ xewwieki; SN: Asparagus aphyllus);
  • Wild madder (MT: ir-robbja salvaġġa; SN: Rubia peregrina).

The maquis habitat type supports also large herbaceous species, like the:

  • Black bryony (MT: il-brijonja sewda; SN: Tamus communis);
  • Bear’s breeches (MT: il-ħannewija; SN: Acanthus mollis ), and;
  • Italian lords-and-ladies (MT: il-garni; SN: Arisarum vulgare).

 

Maquis
Maquis

4. Mediterranean woodland (il-bosk)

Mediterranean woodlands are characterised by sclerophyllous (hard-leaved, evergreen) trees with an undergrowth of smaller shrubs. This is the highest type of vegetation that can develop in the Mediterranean climatic regime, in other words, the climax of the ecological succession. This habitat type develops from maquis, in the absence of disturbance caused by man.

In Malta, this habitat was virtually exterminated, following colonisation by man and through the grazing effects of introduced sheep and goats. Nowadays, only a few remnants are found in a handful of areas, with small copses of the holm oak (MT: il-balluta; SN: Quercus ilex) at Il-Ballut tal-Wardija, Il-Ballut tal-Imġiebaħ, Ta’ Baldu/Wied Ħażrun, and Il-Bosk near Buskett. Remnants are dominated by the holm oak and the Aleppo pine (MT: iż-żnuber; SN: Pinus halepensis). Some of the holm oaks are estimated to be 500 to 900 years old.

Il-Buskett, which is located on the western-south-western coast of Malta, is a semi-natural woodland where trees, namely the Aleppo Pine, together with the holm oak, the olive tree and the carob tree (il-ħarruba) regenerate naturally. This area is also important for many wood-associated species, including invertebrates, mycoflora, and birds.

Il-Buskett woodland
Il-Buskett woodland

Apart from the above mentioned habitats that form part of the process of succession, there are other specialised habitat types, each supporting species that are mostly confined to specific areas.

5. Saline marshlands (bwar salmastri)

Saline marshlands are transitional areas that form at the interface between the marine, freshwater and terrestrial environments. Saline marshlands are dynamic systems and undergo annual cycles of changes in salinity. The salt content changes depending on rainfall, whereas in winter the saline content is low due to a diluting effect of the rain, in summer, the salt content is more concentrated as water levels drop. Salinity in the salt marsh also depends on how close this is to sea and the influx of seawater into the system.

During winter, the Maltese coastal marshes are characterised by a muddy substratum on which a pool of brackish water is collected. Plants found in this habitat type must withstand changes in salinity and therefore have adapted to such conditions, by adopting special structural and physiological features. For instance, certain plants, such as the golden samphire (MT: ix-xorbett; SN: Limbarda crithmoides), have fleshy leaves that can store freshwater. Others, such as the shrubby glasswort (MT: l-almeridja tal-blat; SN: Arthrocnemum macrostachyum) and the twiggy glasswort (MT: l-almeridja; SN: Salicornia ramosissima), have very small, fleshy leaves that envelop the stem, in order to prevent water loss. Such plants appear to be made up of segments. Tamarisk species, on the other hand, are able to concentrate salt in their leaves, to eliminate the salt when the leaves are shed.

Vegetation patterns are observed in saline marshlands that reflect differences in chemical and physical conditions. Areas that remain dry or moist harbour those plants that are not aquatic, such as the smooth-leaved saltwort (MT: il-ħaxixa tal-irmied; SN: Salsola soda). Shallow parts of the salt marsh that hold a small volume of water for several days, are colonised by plants, which although not aquatic, are still able to withstand short periods of inundation until the water dries up or evaporates. Deeper areas, which remain filled with water for longer periods, only support aquatic and semi-aquatic plants. Plants characteristic of saline marshlands are the:

  • Sharp rush (MT: is-simar niggież; SN: Juncus acutus);
  • Sea rush (MT: is-simar tal-baħar; SN: Juncus maritimus), and;
  • Common reed (MT: qasbet ir-riħ; SN: Phragmites australis).

Some coastal wetlands appear to be transitional between freshwater wetlands and saline marshlands, in the sense that, the biotic assemblages they support consist of species typical of both freshwater and saline habitats. Such wetlands have been termed ‘transitional coastal wetlands’, such as when wetlands arise when rainwater collects in depressions close to the sea, such as at l-Għadira s-Safra.

Salini saline marshland
Salini saline marshland

6. Rainwater rock pools (l-għadajjar tal-ilma ħelu)

The movement or flow of acidified water derived from precipitation and runoff, leads to the gradual erosion of limestone substratum and the eventual formation of hollows or kamenitzas (singular kamenitza). The latter collect rainwater in winter, forming shallow freshwater rock pools, which provide a suitable habitat for a number of rare species. Freshwater rock pools are ephemeral, that is, last for only a short period, because in summer these dry up completely and may become colonised by terrestrial vegetation. Therefore, the ecological cycle of this habitat spans over a year and is divided into two stages, the:

a) wet stage occurs in winter when the kamenitzas become filled with rainwater, and;
b) dry stage occurs in summer, when the kamenitzas remain dry.

Species that are specialised to this habitat type remain dormant in the soil during the dry stage, and emerge during the wet stage. Other species move out of the rock pool, when this is in the dry state, and return when conditions become favourable. Plants and algae that inhabit freshwater rock pools include the Maltese waterwort (MT: l-elatine; SN: Elatine gussonei) and the Maltese horned-pondweed (MT: il-ħarira tal-ilma; SN: Zanichellia melitensis).

The duration of how long the rock pool remains with water determines the species richness of that particular rock pool. Several aquatic insects are also found in this habitat type and namely include microcrustaceans, such as the common copepod (MT: il-kopepodu tal-għadajjar; SN: Cyclops vulgaris), freshwater shrimps such as the fairy shrimp (MT: il-gamblu tal-għadajjar; SN: Branchipus schaefferi) and the water flea (MT: iż-żagħrun tal-ġwiebi; SN: Daphnia pulicaria). Certain microorganisms that occur in this habitat are extremely rare, such as the tadpole shrimp (MT: il-gamblu tal-elmu; SN: Triops cancriformis).

Temporary freshwater rockpools
Temporary freshwater rockpools

7. Sand dunes (l-għaram tar-ramel)

Sand dunes are dynamic systems that form by a slow process of accretion, that is, the build-up of sand because of natural wave action. Sandy beaches are backed by dune systems, which provide an essential role in the stability, as well as in the defence of coastal communities. The formation of sand dunes depends on the sand that is carried inland by wind from the beach. Subsequently, sand is deposited and trapped upon encountering clumps of vegetation or some other form of obstacle.

Dune vegetation is adapted to the harsh conditions present in this type of habitat. Such conditions include high temperatures, dryness, occasional inundation by seawater and accumulation of sand. Plant adaptations include extensive root systems that provide efficient anchorage in the porous and mobile substrate and other distinctive morphological features, such as fleshy leaves to limit water loss, and the presence of short white hairs to help in temperature regulation.

Vegetation type changes across the dune system with distance from the beach, forming a typical zonation pattern. Maltese dunes, in the present day and age, may be described according to the zonation pattern.

a) Embryo dune

The most seaward zone of the dune is called the embryo dune. Perennial plants such as the sea rocket (MT: kromb il-baħar; SN: Cakile maritima) are first encountered; these are pioneers of the dune which enable the establishment of other plants. The sea rocket is also encountered on the drift line of the beach, that is, the highest extreme that waves reach leaving a line of organic debris. Other plants found colonising the embryo dune are the sand dropwort (MT: in-niġem tar-ramel; SN: Sporobolus pungens) and the prickly saltwort (MT: il-ħaxixa tal-irmied xewwikija; SN: Salsola kali).

b) Mobile dune

Behind the embryo dune lies the mobile dune, which is characterised by a low dune that is sparsely vegetated by plants such as the sand couch grass (MT: is-sikrana tar-ramel; SN: Elytrigia juncea) and the sea holly (MT: xewk ir-ramel; SN: Eryngium maritimum).

c) Semi-consolidated dune

The mobile dune is followed by the semi-consolidated dune, which is characterised by the carnation spurge (MT: tengħud tax-xatt; SN: Euphorbia terracina), the sea daffodil (MT: il-pankrazju tal-baħar; SN: Pancratium maritimum) and the sea fennel (MT: bużbież il-baħar; SN: Echinophora spinosa).

d) Fixed dune

Following the semi-consolidated dune, one comes across the fixed dune. This zone is vegetated with a dense thicket of salt-tolerant shrubs, such as the grey birdsfoot trefoil (MT: għantux tal-blat; SN: Lotus cytisoides) and the southern scabious (MT: il-kuxxinetti; SN: Scabiosa maritima).

Maltese sand dunes also have characteristic invertebrate fauna, namely nematodes (roundworms), annelids (segmented worms), several insects, amphipods (shrimp-like crustaceans) and isopods (sessile eyes crustaceans).

Over the years, many sand dunes have been lost and nowadays, this habitat is extremely restricted in the Maltese Islands. Presently, there are only few dunes that persist, and this habitat type is amongst the rarest and most threatened of local ecosystems.

Ir-Ramla sand dune
Ir-Ramla sand dune

8. Valley watercourses & riparian communities (il-widien)

Valley watercourses are one of the most species-rich habitats on a national scale. Yet, they are considered as one of the most endangered habitats in the Maltese Islands. The biotic (living) communities of valleys can be divided into two groups:

i. those growing on valley sides, and;
ii. those growing along the watercourse.

In gently sloping valleys, the watercourse community is similar to that of the valley sides, whereas in steep-sided valleys there is a clear distinction between communities along the watercourse and those vegetating valley-sides. Where the terrain permits, the valley sides are terraced and cultivated. The construction of man-made dams in certain valley systems has intentionally retarded the water flow for irrigation purposes. Such dams have created new freshwater habitats where varieties of aquatic and semi-aquatic species thrive.

The watercourse community is by nature dynamic, and its integrity depends on the amount and frequency of rainfall as well as other abiotic factors, such as the rate of siltation. Valleys are dry for some months of the year and water only flows during the wet season. However, some local valleys drain springs originating from the perched aquifers and retain some surface water even during the dry season.

In general, the greater part of local plant and animal species reliant of water during some part of their life cycle are found in valley watercourses. Various annual and perennial plants colonise the watercourse, some of which are rare on a national scale because of the restricted distribution of their habitat. An example is the very rare perennial willow-leaved knotgrass (MT: il-persikarja tal-Baħrija; SN: Persicaria salicifolia).

Plants that grow in watercourses include herbaceous perennials, such as the water plantain (MT: il-biżbula tal-ilma; SN: Alisma plantago-aquatica) and the water speedwell (MT: il-veronika tal-ilma; SN: Veronica anagallis-aquatica). Perennials, unlike annual plants, are able to withstand periods of dryness. Watercourse plants require a good underground system of roots or rhizomes for anchorage to the unstable waterlogged substrate of watercourses. Watercourse vegetation mainly comprises grasses, sedges and rushes, while algae thrive in ‘open water’, like species of Spirogyra and Zygnema. One of the most common plants to colonise valleys is the giant reed (MT: il-qasba l-kbira; SN: Arundo donax). Encroachment by this reed results in reduction of water current; however, when the water passes through the rhizomes of this plant, the water is filtered from nutrients. The giant reed is often replaced by the common reed (MT: qasbet ir-riħ; SN: Phragmites australis) at the mouth of valley watercourses where freshwater feeds into the sea.

Remnants of riparian woodlands, located on the bank of a watercourse, still exist along a few watercourses where water flow is abundant. Examples of trees growing along watercourses include the rare white poplar (MT: is-siġra tal-luq; SN: Populus alba), the Mediterranean willow (MT: iż-żafżafa ż-żgħira; SN: Salix pedicellata) and the grey-leaved elm (MT: is-siġra tan-nemus; SN: Ulmus canescens). Different subtypes occur in different localities.

In areas close to the sea the southern Mediterranean riparian thickets occur. The main native species are the African Tamarisk (MT: il-bruka SN: Tamarisk africana) and the Chaste Tree (MT: is-siġra tal-virgi; SN: Vitex agnus-castus), with the Oleander (MT: id-difla; SN: Nerium oleander) being very rare in the wild.

Watercourses provide habitat and food to various animals, the most well-known being the protected, only amphibian found in Malta, the painted frog (MT: iż-żrinġ; SN: Discoglossus pictus pictus), and the legally protected, endemic Maltese freshwater crab (MT: il-qabru; SN: Potamon fluviatile lanfrancoi). A huge variety of insect and other invertebrate fauna also thrive in local valleys, such as dragonflies and damselflies, semi-aquatic grasshoppers, mayflies, aquatic and semi-aquatic beetles, such as the large predacious diving beetle (MT: il-wirdiena tal-ilma; SN: Dysticus circumflexus), water-associating flies, bees and wasps, small crustaceans and many others. Some of these are only found in these habitats and some are only known from one or a few localities in the Maltese Islands.

9. Caves (l-għerien)

 

Bats roosting
Bats roosting

In spite of the calcareous nature of Malta’s rocks, deep caves are not frequent in the Maltese Islands. Since local caves are inhabited by organisms which are adapted to live in such habitats, they have a very restricted distribution. The best-known cave dwellers are bats but there are many other species, particularly invertebrates. Moreover, a number of these species are endemic to the Maltese Islands and so, are of great scientific interest.

10. Cliffs & screes (l-irdumijiet u s-sisien)

Locally, cliffs and screes are found mainly along southern and western shores of Malta, Gozo and Comino. They represent an important natural habitat because they harbour many interesting species of flora and fauna, including endemic forms.

Rupestral plant communities consist mainly of halophytic shrubs, comprising, amongst others, of endemic species that are restricted only to this habitat type, such as the Maltese cliff-orache (SN: MT: il-bjanka tal-irdum; SN: Atriplex lanfrancoi [=Cremnophyton lanfrancoi]) and the national plant of Malta, the Maltese rock-centaury (MT: widnet il-baħar; SN: Palaeocyanus crassifolius [=Cheirolophus crassifolius]), both belonging to monospecific genera. The cliffs in Gozo support rupestral species that are not present in Malta, namely the Maltese hyoseris (MT: iż-żigland ta’ Għawdex; SN: Hyoseris frutescens) and the Maltese everlasting (MT: is-sempreviva ta’ Għawdex; SN: Helichrysum melitense). Plants found on cliffs need to be resilient to harsh abiotic conditions, such as lack of water, strong winds, sea spray and little soil. Nonetheless, the inaccessibility of cliffs resulted in relatively little interference by man.

Cliffs and screes
Cliffs and screes

Cliffs provide shelter and an ideal breeding habitat for many bird species, such as the:

Blue rock-thrush (male)
Blue rock-thrush (male)

The south-western cliffs of mainland Malta provide a vital habitat to one of the rarest animals in the Maltese Islands, the Maltese door-snail (MT: id-dussies tal-irdum; SN: Lampedusa melitensis). Other rare endemic snails also have their distribution restricted to only a few cliff-side localities, such as the Filfola door-snail (MT: id-dussies ta’ Filfla; SN: Lampedusa imitatrix gattoi) and the Għar Lapsi top-snail (MT: iż-żugraga tal-irdum; SN: Trochoidea ghar lapsi).

Other links