Geographical Variation in Bill Size across Bird Species Provides Evidence for Allen's Rule
Matthew RE Symonds, Glenn J Tattersall
The American Naturalist | UNIV CHICAGO PRESS | Published : 2010
We thank D. Anderson, M. Brooke, and R. Nudds for providing data for various parts of the analyses. M. Kearney generously helped us extract sea surface temperature data for the penguin analyses. Thanks also to M. Elgar and M. Magrath for thoughtful opinions on the manuscript and to T. Billing for pointing us in the direction of penguins. The rest of the Animal Behaviour and Evolution Group at the University of Melbourne also provided helpful discussion. S. Meiri and an anonymous reviewer gave constructive comments on the original draft of the manuscript. M. R. E. S. is supported by the Australian Research Council; G.J.T.'s research is supported by the Natural Sciences and Engineering Research Council of Canada.