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||The site, in spite of its small size, constitutes a very important ecosystem, gathering all the main characteristics of a typical wetland. The reed belts and saltmarshes are in a good state and from an ornithological point of view they are very significant, because they offer refuge to migrating waders. The ease of approaching of this wetland is an advantage for its observation. The wetland of Alyki, although rather small, is of high ornithological importance, especially as a staging area for migratory birds. Μany taxa have been observed so far visiting the area during the winter and spring. Among them are ducks, pochards, coots, herons, ibises, waders and sometimes even swans and flamingos. Many other common marsh birds, gulls and harriers together with a variety of passerines make up the diverse avifauna observed in this site. The site is important for overwintering ducks, migrating waders and other passage migrants. Species of concern include: Gelochelidon nilotica. Some of the species recorded are threatened in Greece. This species diversity, which is the highest among the Peloponnesian wetlands, combined with the facility of bird observation, make the Alyki salt-marsh a remarkable area for scientific, educational and amusement purposes. Some non-bird vertebrate taxa considered as Other Important Species (section 3.3) have been recorded in this site. All species have the C motivation since they are protected by the Bern Convention. Also, apart from the frog Rana ridibunda, the lizard Ablepharus kitaibelii and the marten Martes foina, all the other taxa are allocated the D motivation as they are protected by Greek law (Presidential Decree 67/1981). The same motivation characterizes the lizard Ablepharus kitaibelii because this animal is included in the lists of the CORINE-Biotopes Project's handbook. The mention of the frogs Hyla arborea and Rana dalmatina, as well as the snake Natrix tessellata, in this handbook, is an additional reason for these taxa to receive the D motivation. The invertebrate species listed in section 3.3 with motivation C is protected by the Bern Convention.