Testing, as opposed to supporting, the Mid-domain Hypothesis: a response to

Authors

  • David Currie,

    Corresponding author
    1. Centre for Invasion Biology, Department of Botany and Zoology, University of Stellenbosch, Matieland 7600, South Africa
    2. Ottawa-Carleton Institute of Biology, University of Ottawa, Ottawa, ON K1N 6N5, Canada
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  • Jeremy Kerr

    1. Ottawa-Carleton Institute of Biology, University of Ottawa, Ottawa, ON K1N 6N5, Canada
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* E-mail: dcurrie@uottawa.ca

Abstract

Both our analysis (Kerr et al. 2006), and Lees and Colwell's (2007) reanalysis, of patterns of bird and mammal diversity on Madagascar show that the central peak of richness predicted by the Mid-Domain Hypothesis (MDH) is not observed. Lees and Colwell emphasize an observation consistent with MDH predictions: a latitudinal mid-domain richness peak in the rainforest biome. They find (but do not mention) that no analogous peak is observed in the other two main Madagascan biomes. MDH fails nearly all its tests in Madagascar.

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