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Mathematical Biology Seminar

"Information Exchanges in Predator-Prey Communities" by David Kikuchi from Oregon State University

Abstract: Adaptive use of information can provide a decisive fitness advantage to animals, whether they send the information or receive it. I describe how information is sent and received in model-mimicry systems, where one animal signals honestly and the other decieves. We have theoretical justification for how animals evovle to discrminate between models and mimics in some scenarios, but not necessarily others. I also examine the social transmission of behavioral innovations between predators in two classic predator-prey models. A common outcome of innovations is the destabilization of the system. Destabilizing effects include increasing oscillations or limit cycles. Particularly, in systems where prey are self-limiting and predators have a Type II functional response, destabilization occurs due to overexploitation of the prey. Whenever instability increases the risk of extinction, innovations that benefit individual predators may not have positive long-term effects on predator populations.

Friday, February 3 at 10:00am


Event Type

Lecture or Presentation

Event Topic

Academic, Research


Faculty and Staff, Student

Department of Mathematics
Contact Name

Swati Patel

Contact Email

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