Most questions in evolutionary ecology begin with the patterns of species diversity in different kinds of communities with emphasis on adaptive responses of different species to their abiotic and biotic environments; then, evolutionary processes are introduced by allowing intraspecific variation, in physiology, behavior and interspecies interactions; and finally, population genetic and quantitative genetic models or research paradigms are increasingly acknowledged to be useful. Recent interest in the evolution of life histories and mating systems is clearly bringing together various models of evolution at the level of individuals, kinships, local interbreeding units, metapopulations, and related species. Thus, population substructures and the demographic/genetic properties of subunits along with dispersal and gene flow patterns represent one of the most active research areas. Likewise, reproductive systems (sexual, asexual; inbreeding, outbreeding; polygamy, mate choice, parental care) seem to evolve in relation to their genetic consequences (amount of recombination, fate of progeny variances, hybridity or inbreeding depression) as well as (and together with) ecological measures of reproductive success and optimal resource-use tactics.
KeywordsPopulation Substructure Interspecies Interaction Population Genetic Theory Gene Flow Pattern Quantitative Genetic Model
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