Research Seminar: Professor Peter Wainwright - University of California, Davis
Professor Peter Wainright hosted by Professor Tim Caro
Evolution of Fish Body Shapes: Ecology, Functional Morphology & Diversification
Teleost fishes show extraordinary body shape diversity, ranging from long slender eels to deep-bodied butterflyfish, wide-bodied pancake batfish, bizarre deep-sea anglerfishes, bottom dwelling flatfishes, and incomparable seahorses. We documented the body shape diversity of teleosts by measuring a set of linear traits on museum specimens of 6,100 species. I will present the results of our studies on the impact of major ecological factors on body shape diversification in fishes. How do ecological transitions between benthic, demersal and pelagic habitats affect the dynamics of body shape evolution? Is the deep ocean a hot spot of evolutionary change or is the abyss simply home to a few shallow rejects? How do locomotor mode and feeding mode affect body shape evolution? Finally, recent studies have shown that the rate of speciation in marine fishes is highest in polar regions. I present a parallel analysis of the effect of range latitude on rates of body shape evolution. I hope you will join me.
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