Lotka’s Dilemma, Search Strategies, and the Pace of Ecological Interactions

Date Thursday October 30, 2014 at 4:00 PM
Location 13-105 Center for the Health Sciences (CHS)
Speaker Andrew Hein, Ph.D., Postdoctoral Fellow, Dept. of Ecology & Evolutionary Biology, Princeton University
Sponsoring Dept UCLA Biomathematics
Abstract ABSTRACT: In the 1920’s, pioneering ecologist Alfred Lotka and others introduced the models that have formed the basis of modern theoretical ecology, and the theory of species interactions (e.g., consumer-resource interactions) in particular. The descendants of these models are used in fields from evolutionary ecology to biogeochemistry. In this talk, I’ll revisit the assumptions of such models and show, as Lotka warned, that they do not allow for the sorts of complex behavioral responses to resources (e.g., active search behavior) that abound in real ecological systems. I’ll describe how active search behavior can be incorporated, and demonstrate that it can change the rates of ecological interactions in quantitative and qualitative ways.
Host: Van Savage, Ph.D.

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Flyer Andrew_Hein_20141030.pdf