Multilevel Selection Theory and Major Evolutionary Transitions
نویسندگان
چکیده
منابع مشابه
Multilevel Selection Theory and Major Evolutionary Transitions: Implications for Psychological Science
The concept of a group as comparable to a single organism has had a long and turbulent history. Currently, methodological individualism dominates in many areas of psychology and evolution, but natural selection is now known to operate at multiple levels of the biological hierarchy. When between-group selection dominates within-group selection, a major evolutionary transition occurs and the grou...
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The impressive body of work on the major evolutionary transitions in the last 20 y calls for a reconstruction of the theory although a 2D account (evolution of informational systems and transitions in individuality) remains. Significant advances include the concept of fraternal and egalitarian transitions (lower-level units like and unlike, respectively). Multilevel selection, first without, th...
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A number of recent biologists have used multilevel selection theory to help explain the major transitions in evolution. I argue that in doing so, they have shifted from a ‘synchronic’ to a ‘diachronic’ formulation of the levels of selection question. The implications of this shift in perspective are explored, in relation to an ambiguity in the meaning of multilevel selection. Though the ambigui...
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One of several issues at play in the renewed debate over "junk DNA" is the organizational level at which genomic features might be seen as selected, and thus to exhibit function, as etiologically defined. The intuition frequently expressed by molecular geneticists that junk DNA is functional because it serves to "speed evolution" or as an "evolutionary repository" could be recast as a claim abo...
متن کاملHow might group selection explain the major evolutionary transitions?
The central idea of group selection is that an individual will reduce its fitness so that the mean fitness of a group (of possibly non-related individuals) may increase. This is relevant to the major evolutionary transitions where an individual will cooperate by stopping reproduction on its own and reproduce instead as part of a group. Explaining the major evolutionary transitions should simply...
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ژورنال
عنوان ژورنال: Current Directions in Psychological Science
سال: 2008
ISSN: 0963-7214,1467-8721
DOI: 10.1111/j.1467-8721.2008.00538.x