PMID: 16637488Apr 28, 2006Paper

Adaptive change in the resource-exploitation traits of a generalist consumer: the evolution and coexistence of generalists and specialists

Evolution; International Journal of Organic Evolution
Peter A Abrams

Abstract

Mathematical models of consumer-resource systems are used to explore the evolution of traits related to resource acquisition in a generalist consumer species that is capable of exploiting two resources. The analysis focuses on whether evolution of traits determining the capture rates of two resources by a consumer species produce one generalist, two specialists, or all three types, when all types are characterized by a common fitness function. In systems with a stable equilibrium, evolution produces one generalist or two specialists, depending on the second derivative of the trade-off relationship. When there are sustained population fluctuations, the nature of the trade-off between the consumer's capture rates of the two resources still plays a key role in determining the evolutionary outcome. If the trade-off is described by a choice variable between zero and one that is raised to a power n, polymorphic states are possible when n > 1, which implies a positive second derivative of the curve. These states are either dimorphism, with two relatively specialized consumer types, or trimorphism, with a single generalist type and two specialists. Both endogenously driven consumer-resource cycles, and fluctuations driven by an environ...Continue Reading

References

May 4, 2004·The American Naturalist·Martijn EgasMaurice W Sabelis
Feb 25, 2005·The American Naturalist·William G Wilson, Peter A Abrams
Sep 2, 2005·Journal of Evolutionary Biology·D Waxman, S Gavrilets
Sep 2, 2005·Journal of Evolutionary Biology·P A Abrams
May 5, 2006·The American Naturalist·Peter A Abrams
Aug 19, 2008·The American Naturalist·Eva Kisdi
Sep 1, 1991·Evolution; International Journal of Organic Evolution·Andrew PomiankowskiSean Nee
Aug 1, 1999·Evolution; International Journal of Organic Evolution·Éva Kisdi, Stefan A H Geritz

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Citations

Jul 1, 2008·Journal of Biological Dynamics·Tuomas NurmiMats Gyllenberg
Aug 14, 2012·Journal of Biological Dynamics·J M Cushing, Jarred T Hudson
Jun 10, 2011·Proceedings. Biological Sciences·Timothée PoisotMichael E Hochberg
May 23, 2012·PLoS Biology·Martin M TurcotteMarc T J Johnson
Oct 3, 2014·Proceedings. Biological Sciences·Glenn LitsiosNicolas Salamin
Dec 17, 2011·The American Naturalist·Aysegul BirandSergey Gavrilets
Apr 5, 2011·The American Naturalist·Cory S StraubClaudio Gratton
Feb 2, 2011·Journal of Theoretical Biology·Tuomas Nurmi, Kalle Parvinen
Nov 18, 2009·Theoretical Population Biology·E van Leeuwen, V A A Jansen
Jan 29, 2008·Theoretical Population Biology·Tuomas Nurmi, Kalle Parvinen
May 1, 2007·Theoretical Population Biology·Stefan A H GeritzPing Yan
Jun 22, 2010·Journal of Evolutionary Biology·J B YoderL J Harmon
May 1, 2015·Evolutionary Applications·Julien PapaïxPeter H Thrall
Mar 30, 2010·Journal of Evolutionary Biology·F Débarre, S Gandon
Jan 12, 2013·Journal of Theoretical Biology·Tuomas Nurmi, Kalle Parvinen
Aug 17, 2016·Trends in Ecology & Evolution·Martin M Turcotte, Jonathan M Levine
Jun 24, 2017·Bulletin of Mathematical Biology·Michael H Cortez, Swati Patel

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