Species richness, environmental correlates, and spatial scale: a test using South African birds.

@article{Rensburg2002SpeciesRE,
  title={Species richness, environmental correlates, and spatial scale: a test using South African birds.},
  author={Berndt J. van Rensburg and Steven L Chown and Kevin J. Gaston},
  journal={The American naturalist},
  year={2002},
  volume={159 5},
  pages={
          566-77
        }
}
Energy and habitat heterogeneity are important correlates of spatial variation in species richness, though few investigations have sought to determine simultaneously their relative influences. Here we use the South African avifauna to examine the extent to which species richness is related to these variables and how these relationships depend on spatial grain. Taking spatial autocorrelation and area effects into account, we find that primary productivity, precipitation, absolute minimum… CONTINUE READING

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