Predation on a Cave Fish by the Freshwater Crab Avotrichodactylus Bidens (Bott, 1969) (Brachyura, Trichodactylidae) in a Mexican Sulfur Cave
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[Using prey-choice experiments, we demonstrate that the freshwater crab Avotrichodactylus bidens (Bott, 1969) preys on cave-dwelling fish (Poecilia mexicana Steindachner, 1863) in a sulfidic southern Mexican cave, the Cueva del Azufre, and thus may be one of the top predators in this subterranean ecosystem. Mittels Beutewahlexperimenten können wir zeigen, dass die Süßwasserkrabbe Avotrichodactylus bidens (Bott, 1969) höhlenbewohnende Fische (Poecilia mexicana Steindachner, 1863) in einer schwefelwasserstoffhaltigen südmexikanischen Höhle (der Cueva del Azufre) bejagt. Möglicherweise gehören die Krabben zu den Topprädatoren in diesem unterirdischen Ökosystem., Using prey-choice experiments, we demonstrate that the freshwater crab Avotrichodactylus bidens (Bott, 1969) preys on cave-dwelling fish (Poecilia mexicana Steindachner, 1863) in a sulfidic southern Mexican cave, the Cueva del Azufre, and thus may be one of the top predators in this subterranean ecosystem. Mittels Beutewahlexperimenten können wir zeigen, dass die Süßwasserkrabbe Avotrichodactylus bidens (Bott, 1969) höhlenbewohnende Fische (Poecilia mexicana Steindachner, 1863) in einer schwefelwasserstoffhaltigen südmexikanischen Höhle (der Cueva del Azufre) bejagt. Möglicherweise gehören die Krabben zu den Topprädatoren in diesem unterirdischen Ökosystem.]
Affiliations:
1: Department of Ecology and Evolution, J.W. Goethe University Frankfurt, Siesmayerstrasse 70A, D-60054 Frankfurt am Main, Germany;, Email: klaus@bio.uni-frankfurt.de;
2: Department of Ecology and Evolution, J.W. Goethe University Frankfurt, Siesmayerstrasse 70A, D-60054 Frankfurt am Main, Germany;, Email: mplath@bio.uni-frankfurt.de
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Predation on a Cave Fish by the Freshwater Crab Avotrichodactylus Bidens (Bott, 1969) (Brachyura, Trichodactylidae) in a Mexican Sulfur Cave