Literaturdatenbank
Literaturdatenbank |
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Tingley, R., Herman, T. B., Pulsifer, M., McCurdy, D., & Stephens, J. (2010). Intra-specific niche partitioning obscures the importance of fine-scale habitat data in species distribution models. Biodiversity and Conservation, 19(9), 2455–2467.
Added by: Sarina Wunderlich (12 Dec 2010 20:43:16 UTC) |
| Resource type: Journal Article DOI: 10.1007/s10531-010-9852-7 BibTeX citation key: Tingley2010 View all bibliographic details  |
Categories: General Keywords: Emydidae, Fortpflanzung = reproduction, Glyptemys, Glyptemys insculpta, Habitat = habitat, Nordamerika = North America, Schildkröten = turtles + tortoises Creators: Herman, McCurdy, Pulsifer, Stephens, Tingley Collection: Biodiversity and Conservation |
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| Abstract |
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Geographic information systems (GIS) allow researchers to make cost-effective, spatially explicit predictions of species' distributions across broad geographic areas. However, there has been little research on whether using fine-scale habitat data collected in the field could produce more robust models of species' distributions. Here we used radio-telemetry data collected on a declining species, the North American wood turtle (Glyptemys insculpta), to test whether fine-scale habitat variables were better predictors of occurrence than land-cover and topography variables measured in a GIS. Patterns of male and female occurrence were similar in the spring; however, females used a much wider array of land-cover types and topographic positions in the summer and early fall, making it difficult for GIS-based models to accurately predict female occurrence at this time of year. Males on the other hand consistently selected flat, low-elevation, riparian areas throughout the year, and this consistency in turn led to the development of a strong GIS-based model. These results demonstrate the importance of taking a more sex-specific and temporally dynamic view of the environmental niche.
Added by: Sarina Wunderlich |