Agro Pontino – Habitat

3120 Oligotrophic waters containing very few minerals generally on sandy soils of the West Mediterranean, with Isoëtes spp.: Dwarf amphibious vegetation of oligotrophic waters with few minerals, mostly on sandy soils of the Mediterranean region and some irradiations in the thermo-Atlantic sector, and belonging to the Isoëto-Nanojuncetea.

3140 Hard oligo-mesotrophic waters with benthic vegetation of Chara spp: Lakes and pools with waters fairly rich in dissolved bases (pH often 6-7) (21.12) or with mostly blue to greenish, very clear, waters poor (to moderate) in nutrients, base-rich (pH often >7.5) (21.15). The bottom of these unpolluted water bodies are covered with charophyte, Chara and Nitella, algal carpets. In the Boreal region this habitat type includes small calcareous-rich oligo-mesotrophic gyttja pools with dense Chara (dominating species is C. strigosa) carpets, often surrounded by various eutrophic fens and pine bogs.

3150 Natural euthrophic lakes with Magnopotamion or Hydrocharition-type vegetation: Lakes and ponds with mostly dirty grey to blue-green, more or less turbid, waters, particularly rich in dissolved bases (pH usually > 7), with free-floating surface communities of the Hydrocharition or, in deep, open waters, with associations of large pondweeds (Magnopotamion).

3170* Mediterranean temporary ponds: Very shallow temporary ponds (a few centimetres deep) which exist only in winter or late spring, with a flora mainly composed of Mediterranean therophytic and geophytic species belonging to the alliances Isoëtion, Nanocyperion flavescentis, Preslion cervinae, Agrostion salmanticae, Heleochloion and Lythrion tribracteati.

3260 Water courses of plain to montane levels with the Ranunculion fluitantis and Callitricho-Batrachion vegetation: Water courses of plain to montane levels, with submerged or floating vegetation of the Ranunculion fluitantis and Callitricho-Batrachion (low water level during summer) or aquatic mosses.

This habitat is sometimes associated with Butomus umbellatus bank communities. It is important to take this point into account in the process of site selection.

3280 Constantly flowing Mediterranean rivers with Paspalo-Agrostidion species and hanging curtains of Salix and Populus alba: Nitrophilous annual and perennial grass and sedge formations of the alluvial banks of large Mediterranean rivers, with Paspalum paspaloides, P. vaginatum, Polypogon viridis (= Agrostis semiverticillata), Cyperus fuscus, and hanging curtains of Salix spp. and Populus alba.

6420 Mediterranean tall humid herb grasslands of the Molinio-Holoschoenion: Mediterranean humid grasslands of tall grasses and rushes, widespread in the entire Mediterranean basin, extending along the coasts of the Black Sea, in particular in dunal systems.

6430 Hydrophilous tall herb fringe communities of plains and of the montane to alpine levels: Wet and nitrophilous tall herb edge communities, along water courses and woodland borders belonging to the Glechometalia hederaceae and the Convolvuletalia sepium orders (Senecion fluviatilis, Aegopodion podagrariae, Convolvulion sepium, Filipendulion).

Source Habitat Italia