As Rohrschollen Island is an alluvial zone, the faunistic heritage is represented principally by birds and amphibians. We do, however, also find reptiles, fish, insects and mammals.

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Birds

More than 158 bird species have been catalogued (LPO inventory, 2000). Rohrschollen offers a multitude of habitats where they can breed, feed and rest.

Breeding birds: the majority of bird species catalogued nests and breeds on the island. Some species are very common. Others are protected on various geographical scales and have a conservation status of rare or are indicative of good quality alluvial habitats on the Rhine.

Overwintering birds: the Rhine is the second largest overwintering site after the Camargue. On Rohrschollen, it may accommodate up to 4,000 waterfowl on average in the coldest part of the winter, which make the island the fourth or fifth largest site (depending on the year) in terms of populations on the Rhine.

Amphibians and reptiles

Ten amphibian species and four reptile species have been identified. Among the amphibians, two species are interesting in terms of regional heritage: the European Tree Frog (Hyla arborea) and the Great Crested Newt (Triturus cristatus). We should also mention the Agile Frog (Rana dalmatina), a species typical of alluvial forests, and the Sand Lizard (Lacerta agilis).

Insects

Inventories and surveys have revealed the presence of 45 species of butterfly and 27 species of Orthoptera (grasshoppers, locusts, crickets and mantises). Some of them appear on the Alsace red list.

The red lists of threatened habitats in Alsace (Odonat - 2003) assess the state of conservation and vulnerability of animal and plant species, and even of natural habitats. They help to establish priorities according to criteria of rarity, vulnerability, threats...

Mammals

The reserve's officers regularly see wild boar, deer, fox, coypu, squirrel, marten, polecat, weasel and micro-mammals. Chiroptera (bats) traditionally use alluvial forests as hunting sites.

Fish

Fishing on the Bauerngrundwasser and the Old Rhine has helped to catalogue 22 fish species. Among these species is the Spined Loach (Cobitis taenia), which is listed in Annex II to the species of Community interest. Two other species have a status that also deserves to be underlined: the Northern Pike (Esox lucius), protected nationally and on the Red List of fish threatened in Alsace, and the European Eel (Anguilla anguilla), also on the list of threatened species in Alsace and also endangered throughout Europe.

Photographs:
Middle spotted woodpecker © René HOFF
Sans lizard © Camille HELLIO
Dark bush cricket © Camille HELLIO