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Monday Seminar: March 26, 2007 4pm in Biosciences West (map), Room 301"Evolution of Animal Coloration and Mate Preferences Along Environmental Gradients" Greg will be available for meetings from 9:00 am - 3:30 pm on Monday before his talk. Please email Jeremy Davis at davisj@email.arizona.edu if you are interested with meeting with Greg. Include times you will (or will not) be available for a meeting and your preferences for either a 30 or 50 minute slot. (Given the brevity of Dr. Grether’s visit, the availability of 50 minute slots will most likely be very limited, and the available slots will be given on a first come first serve basis.) |
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Talk Abstract: Environmental gradients have been an enduring source of insights into microevolutionary processes, but they are underutilized as a tool for studying sexual selection. This is surprising because sensitivity to environmental influences is one of the hallmarks of secondary sexual characters and the focus of many theoretical models of mate preference evolution. In this talk, I will present recent results from my research on the influence of a replicated environmental gradient in carotenoid availability on the evolution of male coloration and coloration-based female mate preferences in Trinidad guppies (Poecilia reticulata). From Dr. Grether’s Website: "Research in the Grether lab lies at the interface of ethology, ecology and evolutionary biology. Our primary focus is to understand how sexual selection and other forms of social selection interact with the biotic and abiotic environment to shape the evolution of behavioral strategies and signaling systems (with an emphasis on visual signals). Behaviors of special interest include mate choice, alternative reproductive tactics, and territoriality. Current study systems include fishes, insects and birds." In addition to his research on guppy coloration and mate choice, Dr. Grether has written papers on genetic accommodation, habitat selection and territoriality and has studied a number of species including damselflies and harvestmen. |
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