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An Evaluation Of Narrow Hybrid Zones In Vertebrates, William S. Moore
An Evaluation Of Narrow Hybrid Zones In Vertebrates, William S. Moore
Biological Sciences Faculty Research Publications
A review of the literature on vertebrate hybridization reveals the existence of a number of narrow hybrid zones. Three hypotheses have been suggested to explain the occurrence of these zones. The ephemeral-zone hypothesis states that hybridization will end either in speciation or fusion of the hybridizing taxa by means of introgression. The dynamic-equilibrium hypothesis allows the possibility that narrow hybrid zones might be stable: where hybrids are confined to a small area by steep selection gradients, "crystallization" of an antihybridization mechanism might be prevented by naive immigrants from the parental populations even though hybrids are selected against. The hybrid-superiority hypothesis …
Meeting Of The Elephant Interest Group At Michigan State University, June 21, 1977, Jeheskel Shoshani
Meeting Of The Elephant Interest Group At Michigan State University, June 21, 1977, Jeheskel Shoshani
Elephant
Digest of the minutes of the first informal meeting of the Elephant Interest Group at the 57th Annual Meeting of the American Society of Mamalogists (ASM).