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On Evolutionarily Stable Life Histories, Optimization and the Need to Be Specific about Density Dependence
Sido D. Mylius and Odo Diekmann
Vol. 74, No. 2 (Nov., 1995), pp. 218-224
Stable URL: http://www.jstor.org/stable/3545651
Page Count: 7
You can always find the topics here!Topics: Environmental disorders, Mortality, Evolution, Ecological life histories, Juveniles, Evolutionary theories, Ecological competition, Density, Demography, Population density
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Concentrating on monomorphic populations in demographic steady state, we give three different conditions under which the evolutionarily stable life-history strategy can be characterized as the life-history strategy at which a relatively simple function is maximal. Depending on the way density dependence acts, this function, or fitness measure, can be the life-time production of offspring, the population growth rate, or another quantity from a large range of possible optimization criteria. We illustrate this by examining the optimal age at maturity for a hypothetical organism. All of this demonstrates that, when studying the evolutionary aspects of life-history characteristics, one cannot escape the task of specifying how density dependence limits population growth.
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