REPRODUCTIVE EFFORT IN VISCOUS POPULATIONS
نویسندگان
چکیده
منابع مشابه
Reproductive effort in viscous populations.
Here I study a kin selection model of reproductive effort, the allocation of resources to fecundity versus survival, in a patch-structured population. Breeding females remain in the same patch for life. Offspring have costly, partial long-distance dispersal and compete for breeding sites, which become vacant upon the death of previous occupants. The main result is that the evolutionarily stable...
متن کاملEvolution of reproductive effort in viscous populations: the importance of population dynamics.
I present two ecological models for the evolution of reproductive effort in viscous populations with empty sites. In contrast with previous studies, I show that limited dispersal needs not have a positive effect on the evolutionarily stable allocation of resources to fecundity versus survival. Rather, depending on the feedback between the trait and the population dynamics, population viscosity ...
متن کاملModeling Oyster Populations II. Adult Size and Reproductive Effort
A time-dependent model of energy flow in post-settlement oyster populations is used to examine the factors that influence adult size and reproductive effort in a particular habitat, Galveston Bay, Texas, and in habitats that extend from Laguna Madre,. Texas to Chesapeake Bay. The simulated populations show that adult size and reproductive effort are detennined by the allocation of net productio...
متن کاملLifetime reproductive effort in humans.
Lifetime reproductive effort (LRE) measures the total amount of metabolized energy diverted to reproduction during the lifespan. LRE captures key components of the life history and is particularly useful for describing and comparing the life histories of different organisms. Given a simple energetic production constraint, LRE is predicted to be similar in value for very different life histories...
متن کاملLifetime reproductive effort.
In a 1966 American Naturalist article, G. C. Williams initiated the study of reproductive effort (RE) with the prediction that longer-lived organisms ought to expend less in reproduction per unit of time. We can multiply RE, often measured in fractions of adult body mass committed to reproduction per unit time, by the average adult life span to get lifetime reproductive effort (LRE). Williams's...
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ژورنال
عنوان ژورنال: Evolution
سال: 2000
ISSN: 0014-3820
DOI: 10.1111/j.0014-3820.2000.tb00030.x