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juvenile Harpy Eagle, Gareno, Ecuador

Latitudinal Variation
in Diversity

Relevant Papers:

Bothwell, E., R. Montgomerie, S.C. Lougheed and P.R. Martin. 2015. Closely related species of birds differ more in body size when their ranges overlap — in warm, but not cool, climates. Evolution 69:1701-1712. LINK 

Bonier, F., C. Eikenaar, P.R. Martin and I.T. Moore. 2014. Extra-pair paternity rates vary with latitude and elevation in Emberizid sparrows. American Naturalist 183:54-61. PDF

Martin, P.R., R. Montgomerie and S.C. Lougheed. 2010. Rapid sympatry explains greater color pattern divergence in high latitude birds. Evolution 64:336-347. PDF

Martin, P.R., F. Bonier, I.T. Moore and J.J. Tewksbury. 2009. Latitudinal variation in the asynchrony of seasons: implications for higher rates of population differentiation and speciation in the tropics. Ideas in Ecology and Evolution 2:9-17. LINK

Martin, P.R. and J.J. Tewksbury. 2008. Latitudinal variation in subspecific diversification of birds. Evolution  62:2775-2788. PDF

Martin, P.R., F. Bonier, and J.J. Tewksbury. 2007. Revisiting Jablonski (1993): Cladogenesis and range expansion explain latitudinal variation in taxonomic richness. Journal of Evolutionary Biology 20:930-936. PDF

Ghalambor, C., R.B. Huey, P.R. Martin, J.J. Tewksbury, and G. Wang. 2006. Are mountain passes higher in the tropics? Janzen's hypothesis revisited. Integrative and Comparative Biology 46:5-17. PDF

Martin, P.R. & J.K. McKay.  2004. Latitudinal variation in genetic divergence of populations and the potential for future speciation. Evolution 58:938-945. PDF

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