Literaturdatenbank
Literaturdatenbank |
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Famelli, S., Pinheiro, S. C. P., Souza, F. L., Chiaravalloti, R. M., & Bertoluci, J. (2012). Population viability analysis of a long-lived freshwater turtle, hydromedusa maximiliani (testudines: Chelidae). Chelonian Conservation & Biology, 11(2), 162–169.
Added by: Admin (06 Jan 2014 18:22:47 UTC) |
| Resource type: Journal Article DOI: http://dx.doi.org/10.2744/CCB-1001.1 BibTeX citation key: Famelli2012 View all bibliographic details  |
Categories: General Keywords: Chelidae, Genetik - genetics, Habitat - habitat, Hydromedusa maximiliani, Schildkröten - turtles + tortoises, Südamerika - South America Creators: Bertoluci, Chiaravalloti, Famelli, Pinheiro, Souza Collection: Chelonian Conservation & Biology |
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| Abstract |
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Maximilian's snake-necked turtle, Hydromedusa maximiliani, is an endemic and vulnerable long-lived freshwater turtle from eastern Atlantic mountainous rainforest regions of Brazil. Three scenarios (real population, optimistic population, and pessimistic population) based on the species' life-history data and carrying capacity estimates collected throughout 13 yrs were generated with VORTEX and subjected to sensitivity tests to verify the influence of demographic (mortality rate and inbreeding depression) and environmental (fire and deforestation catastrophes) parameters on population viability. The results showed significant differences among the viability scenarios, with extinction probability ranging from 6% to 99%. These analyses illustrate that environmental and demographic stochasticity can negatively impact populations of H. maximiliani and emphasize the necessity of protecting areas for long-lived organisms inhabiting regions impacted by humans.
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