Social Subordination, Population Density, and Mammalian Evolution

摘要: Natural selection, operating on phenotypic expressions of the genetic material, is generally held to be fundamental importance in evolution. selection includes environmental by which meant here particular correlated phenotypic-genotypic changes or adaptations that confer better survival, including competitive advantages genotype, a new changing environment. However, behavioral characteristics many, if not most, mammals operate reduce exposure habitats. For example, most are reluctant go beyond limits familiar territory-their home range-and must forced do so. In addition, socially dominant animals usually occupy and hold desirable portions habitat successful breeders. turn, their offspring tend dominant. Moreover, for they best adapted, given species may similar, identical, habitats many millennia. Therefore, specific move with it as shifts time climatic change, how can subjected selective force changes, mechanisms does mammalian evolution occur? Mammalian might expected conservative limited rate characteristic entire ecosystem. has been explosive respect diversity. I suggest influence social dominance more than offset other consequences hierarchical behavior, behavior major