Beaver ponds as habitat of amphibian communities in a central European highland

Beaver ponds as habitat of amphibian communities in a central European highland Amphibia-Reptilia 28 (2007): 493-501 Beaver ponds as habitat of amphibian communities in a central European highland Lutz Dalbeck 1 , ∗ , Beatrice Lüscher 2 , Dagmar Ohlhoff 3 Abstract. The Eurasian beaver Castor fiber , formerly occurred across the Palaearctic, but was nearly eradicated in the 19th century. Due to reintroductions in the 20th century, beaver populations are increasing and now extend into highland areas. Natural still waters are scarce in highlands of Central Europe. Therefore the question arises, “Are beaver ponds essential habitats for amphibians?”, especially since fishes, predators of amphibian larval stages, also inhabit beaver ponds. We investigated the amphibian fauna of one typical valley in the Eifel, that was colonized by beavers in 1981, and compared areas with and without beaver ponds. All anuran species of the region occupied beaver ponds, including species that were absent ( Alytes obstetricans , Bufo bufo and Rana kl. esculenta ) or rare ( Rana temporaria ) in natural waters. Alytes obstetricans obviously benefited from pond construction and the removal of trees by beavers which leads to sunny plots along the slopes of the valley, crucial habitat for this species. The urodelans Salamandra salamandra , Triturus alpestris and http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Amphibia-Reptilia Brill

Beaver ponds as habitat of amphibian communities in a central European highland

Amphibia-Reptilia, Volume 28 (4): 493 – Jan 1, 2007

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Publisher
Brill
Copyright
© 2007 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0173-5373
eISSN
1568-5381
DOI
10.1163/156853807782152561
Publisher site
See Article on Publisher Site

Abstract

Amphibia-Reptilia 28 (2007): 493-501 Beaver ponds as habitat of amphibian communities in a central European highland Lutz Dalbeck 1 , ∗ , Beatrice Lüscher 2 , Dagmar Ohlhoff 3 Abstract. The Eurasian beaver Castor fiber , formerly occurred across the Palaearctic, but was nearly eradicated in the 19th century. Due to reintroductions in the 20th century, beaver populations are increasing and now extend into highland areas. Natural still waters are scarce in highlands of Central Europe. Therefore the question arises, “Are beaver ponds essential habitats for amphibians?”, especially since fishes, predators of amphibian larval stages, also inhabit beaver ponds. We investigated the amphibian fauna of one typical valley in the Eifel, that was colonized by beavers in 1981, and compared areas with and without beaver ponds. All anuran species of the region occupied beaver ponds, including species that were absent ( Alytes obstetricans , Bufo bufo and Rana kl. esculenta ) or rare ( Rana temporaria ) in natural waters. Alytes obstetricans obviously benefited from pond construction and the removal of trees by beavers which leads to sunny plots along the slopes of the valley, crucial habitat for this species. The urodelans Salamandra salamandra , Triturus alpestris and

Journal

Amphibia-ReptiliaBrill

Published: Jan 1, 2007

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