Literaturdatenbank
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Janes, D., & Gutzke, W. H. (2002). Factors affecting retention time of turtle scutes in stomachs of american alligators, alligator mississippiensis. American Midland Naturalist, 148, 115–119.
Added by: Admin (06 Jan 2014 18:24:41 UTC) |
| Resource type: Journal Article BibTeX citation key: Janes2002 View all bibliographic details  |
Categories: General Keywords: Fressfeinde - predators, Habitat - habitat, Nordamerika - North America, Schildkröten - turtles + tortoises Creators: Gutzke, Janes Collection: American Midland Naturalist |
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| Abstract |
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Crocodilians are able to consume larger meals than most vertebrates. The varied diet of many crocodilians makes them excellent models to study the effects of meal size and temperature on gastric retention time. Consumption of turtles by American alligators, Alligator mississippiensis, is expected to be overemphasized because of prolonged stomach retention of epidermal scutes. We conducted experiments to identify exogenous factors that control gastric retention time of turtle scutes. Stomach contents of nine juvenile alligators, fed various percentages of their body mass, were used to compare retention intervals of turtle scutes. As meal size increased, the stomach retention interval increased. The retention interval of scutes was not affected by ambient temperatures over the range of 30–35 C.
Added by: Admin |