Literaturdatenbank
Literaturdatenbank |
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Gonçalves, F. A., Cechin, S. T. Z., & Bager, A. (2007). Nest predation of trachemys dorbigni (duméril & bibron) (testudines, emydidae) in southern brazil. Revista Brasileira de Zoologia, 24(4), 1063–1070.
Added by: Admin (18 Jul 2009 11:46:03 UTC) |
| Resource type: Journal Article BibTeX citation key: Gonalves2007 View all bibliographic details  |
Categories: General Keywords: Emydidae, Fortpflanzung = reproduction, Fressfeinde = predators, Habitat = habitat, Schildkröten = turtles + tortoises, Südamerika = South America, Trachemys, Trachemys dorbigni Creators: Bager, Cechin, Gonçalves Collection: Revista Brasileira de Zoologia |
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| Abstract |
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Nests of the D'Orbigny's slider, Trachemys dorbigni, were monitored during the nesting season of 2005/2006 to evaluate predation rates; time variation on these rates; to identify predator species and their importance on nest destruction and the influence of nest dispersion on predation rates in Southern Brazil. Of the 58 monitored nests, 98% (n = 57) were destroyed by predators. Predation events occurred primarily during the first 48 hours after oviposition and there was no time variation on predation rates. Using camera traps and direct observations we could identify six species of nest predators. There was not prevalence of any predator. Nest density did not influence predation rates, but there was a negative correlation between time after egg laying and predation.
Added by: Admin |