Literaturdatenbank
Literaturdatenbank |
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Martínez-Meyer, E., Díaz-Porras, D., Peterson, T. A., & Yáñez-Arenas, C. (2013). Ecological niche structure and rangewide abundance patterns of species. Biology Letters, 9(1).
Added by: Admin (06 Jan 2014 18:22:58 UTC) |
| Resource type: Journal Article DOI: 10.1098/rsbl.2012.0637 BibTeX citation key: MartnezMeyer2013 View all bibliographic details  |
Categories: General Keywords: Clemmys guttata, Emydidae, Habitat - habitat, Schildkröten - turtles + tortoises Creators: Díaz-Porras, Martínez-Meyer, Peterson, Yáñez-Arenas Collection: Biology Letters |
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| Abstract |
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Spatial abundance patterns across species' ranges have attracted intense attention in macroecology and biogeography. One key hypothesis has been that abundance declines with geographical distance from the range centre, but tests of this idea have shown that the effect may occur indeed only in a minority of cases. We explore an alternative hypothesis: that species' abundances decline with distance from the centroid of the species' habitable conditions in environmental space (the ecological niche). We demonstrate consistent negative abundance–ecological distance relationships across all 11 species analysed (turtles to wolves), and that relationships in environmental space are consistently stronger than relationships in geographical space. Clemmys guttata
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