Literaturdatenbank
Literaturdatenbank |
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Snow, J. (1982). Predation on painted turtle nests: nest survival as a function of nest age. Canadian Journal of Zoology, 60(12), 3290–3292.
Added by: Sarina Wunderlich (25 Jun 2011 12:42:11 UTC) |
| Resource type: Journal Article DOI: 10.1139/z82-416 BibTeX citation key: Snow1982 View all bibliographic details  |
Categories: General Keywords: Chrysemys, Chrysemys picta, Emydidae, Fortpflanzung = reproduction, Fressfeinde = predators, Habitat = habitat, Nordamerika = North America, Schildkröten = turtles + tortoises Creators: Snow Collection: Canadian Journal of Zoology |
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| Abstract |
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This study examined the relationship between nest age and predation rate in painted turtles (Chrysemys picta). Eighty-one intact nests were found; 33 were eventually preyed upon during the study. New nests (less than 72h old) do not appear to have a greater risk of predation than older nests. The majority (55%) of nests preyed upon were older than 72h. Nests were divided into two groups: the first 41 of the season's nestings and the remaining 40 nestings. The proportion of nests preyed upon did not differ significantly between the two groups. Predators appeared to have made more frequent daily visits during the time the latter group of nests were being constructed. The average age of nests preyed upon in each group was 13.7 and 2.7d, respectively; these averages are significantly different. Identifiable predators included skunks (Mephitis mephitis), raccoons (Procyon lotor), foxes (Vulpes fulva), and chipmunks (Tamias striatus) that accounted for 23, 4, 4, and 5, respectively, of the nests preyed upon.
Added by: Sarina Wunderlich |