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Except for birds, the presence of amphibians, reptiles, mammals and fish is very important in Evros Delta.
Fish
In Evros River and the adjustent area, 46 species of fish have been recorded. Many of these species have a commercial value for the inhabitants of the area, like the Sole, the Eel, etc.
Amphibians – Reptiles
Seven species of amphibians have been recorded in Evros Delta. In wet places and in the water, we meet two species of frog (Rana ridibunda and Rana dalmatina). The Tree frog (Hyla arborea) is mostly observed hooked in trees, reeds or leaves. In more dry places Bufo viridis and Bufo bufo are observed. It is believed that amphibians have decreased all over Greece and Europe, because of habitat loss (drainage), pollution and pesticides.
21 species of reptiles have been recorded in the wetland of Evros Delta. They are observed in land and in water. Two species of terrapins are common (Mauremys caspica and Emys orbicularis) as well as watersnakes of the species Natrix tessellata.
Mammals
At least 40 species of mammals live in Evros Delta. In fresh water canals the Otter (Lutra lutra) is observed. In the wider area of the wetland the Wildcat (Felis silvestris), the Fox (Vulpes vulpes), the Marten (Martes foina), the Weasel (Mustela nivialis) and the Badger (Meles meles) live. In the fields and meadows the Hedgehog (Erinaceus concolor), the Souslik (Citellus citellus) and other species are observed.
The Souslik is a small mammal (29 cm) with a bushy tail. It feeds on roots, seeds and leaves. It constitutes an important source of food for some raptor species. It lives in underground colonies in areas with low vegetation or cultivations. It builds its nest in the ground, digging deep tunnels with many exits. It gives birth to approximately 6 young per year. In spring and summer it is observed to cross the dykes of Drana lagoon and of the drainage canals. The Greek Red Data Book of the Threatened Vertebrates cites as Endangered species the Wildcat and most of the bat species, while the Otter, the Souslik, the Wolf and the Badger are cited as Vulnerable.
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