Baylor University
Department of Biology
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Patrick Danley

Associate Professor of Biology
A.124 Baylor Sciences Building
(254) 710-2081
The Danley Lab Web Page

Associate Professor of Biology


Ph.D., Zoology, University of New Hampshire
B.S., Biology, The Pennsylvania State University

Foundations of Evolutionary Biology
Advanced Topics in Evolutionary Biology
Molecular Ecology
Population Genetics

Research Interests

Why are there so many species?

I try to answer this question by examining the factors that have influenced speciation in two of the worlds most species rich groups: East African cichlids and Hawaiian crickets. Species formation in these systems has been rapid, recent, and extensive. Yet the factor that seems to influence the rate of speciation in these groups is common to most sexually reproducing organisms. That is, organisms must choose a mate.

Methods of mate choice are nearly as varied as the species in which it occurs. In cichlid fishes and Hawaiian crickets, however, mate choice extremely similar. A male signals to a female, the female assesses the male (and probably vice versa), and the individuals mate or part.

While conceptionally simple, this complex process requires an integrative approach that examines populations, individuals, behaviors, brains, genes and epigenetic phenomenon among other factors. As a result, my research interests are varied. Currently, my work focuses on the genotype-phenotype relationship with respect to male signaling behavior and female preference.

Selected Publications:

Danley, P. D., T. N. deCarvalho, D. J. Fergus, and K. L. Shaw. 2007. Reproductive asynchrony and the divergence of Hawaiian crickets. Ethology 113:1125-1132.

Danley, P.D., S. P. Mullen, F. Lui, V. Nene, J. Quackenbush and K. L. Shaw. 2007. A cricket gene index: A neurological, behavioral, and evolutionary genetic resource. BMC Genomics 8 Art. # 109.

Shaw, K. L., and P. D. Danley. 2003. Behavioral genomics and the study of speciation at a porous species boundary. Zoology 106:261-273.

Danley P. D., and T. D. Kocher. 2001. Speciation in rapidly diverging systems: Lessons from Lake Malawi. Molecular Ecology 10:1075-1086.

Danley, P. D., J. A. Markert, M. E. Arnegard, and T. D. Kocher. 2000. Divergence with gene flow in the rock-dwelling cichlids of Lake Malawi. Evolution 54 (5): 1725-1737.

Department of Biology