Dr. George McGhee discusses the concept of adaptive landscape in evolution as well as a spatial approach to natural selection.
Dr. McGhee's work in the field of paleontology is concentrated on the analysis of ancient ecosystems, and the evolution of life through time within this ecological context. His research has involved both the empirical analysis of Late Devonian marine ecosystems, and the theoretical consideration of the ecology of multispecies evolution and extinction patterns. He has been involved in testing various hypotheses of mass extinction: the ecology of massive ecosystem collapse. These hypotheses have included the hypothesis that global ecosystem collapse can be triggered by extraterrestrial causes (chiefly, asteroidal impact).
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