Megafauna Extinction: Did Humans or Climate Kill Off the Mammoths?

Complete video at: http://fora.tv/2010/05/18/Dr_Elizabeth_Hadly_Mammals_and_Climate_Change

Stanford biologist Elizabeth Hadly recaps a debate among biologists over whether prehistoric megafauna like mammoths, giant sloths and saber-toothed cats became extinct due to overhunting by humans, or by a combination of hunting and a changing climate.


Stanford biology professor Elizabeth Hadly’s research in the far reaches of the globe from India to Patagonia to Southeast Asia addresses the issues of what determines and maintains vertebrate (especially mammal) diversity through space and time and how that diversity is influenced by the environment. – California Academy of Sciences

Elizabeth Hadly is Associate Professor, Department of Biological Sciences and Departmen of Geology and Environmental Sciences, Stanford University. The research of Elizabeth Hadly probes how perturbations such as climatic change influence the evolution and ecology of Neogene vertebrates.

Professor Hadly’s field research involves excavation of finely stratified Holocene paleontological sites and collection of modern specimens in western North America and Patagonia. Construction of a state-of-the-art ancient DNA laboratory has made possible the study of genetic structure of populations through time. Laboratory work includes morphometric and molecular analyses with the intent to extend the level of investigation down to the population and genetic levels. Ongoing projects at the macroecological scale include the study of the ecological and evolutionary factors influencing biological diversity through a comparison of temperate terrestrial vertebrate faunas in North and South America.



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