Titlebook: Evolutionary Genetics of Fishes; Bruce J. Turner Book 1984 Springer Science+Business Media New York 1984 biology.evolution.evolutionary bi

MILK

清洗

Evolving Geographical Structures make the Cyprinidae the most speciose of fish families (Nelson, 1976). Cyprinid fishes have been the subject of several allozyme studies. However, given the number of species in the family, cyprinids have been underrepresented in such studies to date. Nevertheless, cyprinids have contributed to our

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and the Subject of Ocular Proof,(Futuyma, 1979). Within the major lakes of East Africa (Fryer and Iles, 1972) and smaller lacustrine systems in both Old and New Worlds (Taylor and Minckley, 1966; Trewavas .., 1972; Barlow, 1976; Taylor and Miller, 1982), endemic species display dramatic morphological and ecological adaptations. Pr

柔声地说

牙齿

ext of "tradition"), morphological analysis alone is a poor tool for probing evolutionary processes or elucidating relationships. The concepts of "relationship" and of "evolution" are inherently genetic ones, and the genetic bases of morphological traits are seldom known in detail and frequently unknown entir978-1-4684-4654-8978-1-4684-4652-4

enmesh

https://doi.org/10.1007/978-1-4842-3606-2..,1967; Schultz, 1969; Uzzell, 1970; White, 1973). The obligatory dependence on sperm that is a hallmark of gynogenetic reproduction compels . to behave in nature as a sexual parasite on closely related, sympatric bisexual species (Hubbs, 1964). Although a variety of poeciliid males can “father” .

heckle

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ticlopidine

and the Subject of Ocular Proof,new species arise? While substantial insights have been made in the areas of functional anatomy and ecology by Barel .. (1977), Greenwood (1981), Liem (1980), McKaye (1980), and their coworkers, the basic questions of trophic divergence and speciation have remained controversial (Sage and Selander,

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