Literaturdatenbank
Literaturdatenbank |
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Hurlbert, S. H. (1970). Predator responses to the vermilion-spotted newt (notophthalmus viridescens). Journal of Herpetology, 4(1/2), 47–55.
Added by: Sarina Wunderlich (25 Jun 2011 12:41:39 UTC) |
| Resource type: Journal Article BibTeX citation key: Hurlbert1970 View all bibliographic details  |
Categories: General Keywords: Amphibien = amphibians, Chelydra, Chelydra serpentina, Chelydridae, Chrysemys, Chrysemys picta, Emydidae, Ernährung = nutrition, Fressfeinde = predators, Habitat = habitat, Nordamerika = North America, Schildkröten = turtles + tortoises Creators: Hurlbert Collection: Journal of Herpetology |
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| Abstract |
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Efts, adults and recently metamorphosed larvae of Notophthalmus viridescens were offered to a variety of potential predators, usually simultaneously or in alternating succession with plethodontids and ambystomatids. Recently metamorphosed larvae were consistently refused by birds, usually refused by Thamnophis sirtalis, occasionally refused by Bufo americanus, and usually eaten by Chrysemys picta and Chelydra serpentina. Efts were accepted and eaten by 3 of 5 Procyon lotor and by Rana catesbeiana but were refused by birds on sight, by Thamnophis sirtalis, and by 2 Procyon lotor. Adults were eaten by Rana catesbeiana but were refused by Thamnophis sirtalis and by birds. Chrysemys picta ate the ventral surface and viscera of dead adult N. viridescens but were reluctant to eat their dorsal surfaces, where poison glands are concentrated. The responses of predators are discussed in terms of the presumed aposematic (efts) and cryptic (adult) coloration of N.
Added by: Sarina Wunderlich |