Evolutionary BiologySinauer Associates, 1986 - 600 pagine Covers the genetic, developmental, and ecological mechanisms of evolutionary change, the major features of evolutionary history as revealed by phylogenetic and paleontological studies, and material on adaptation, molecular evolution, co-evolution, and human evolution. |
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Pagina 25
... factors that limit population density in nature are the subject of a long- standing controversy ( Cold Spring Harbor Symposium 1957 , Den Boer and Grad- well 1970 ; see any of several ecology books for a summary , e.g. , Krebs 1978 ...
... factors that limit population density in nature are the subject of a long- standing controversy ( Cold Spring Harbor Symposium 1957 , Den Boer and Grad- well 1970 ; see any of several ecology books for a summary , e.g. , Krebs 1978 ...
Pagina 41
... factors such as weather may limit the geographic and local distribution of a species , such factors cannot limit population density , since the species is adapted to these factors . Discuss . 4. If organisms are supposed to be adapted ...
... factors such as weather may limit the geographic and local distribution of a species , such factors cannot limit population density , since the species is adapted to these factors . Discuss . 4. If organisms are supposed to be adapted ...
Pagina 59
... factors emanating from the notochord . Inducing factors in some cases appear to form a concentration gradient as they diffuse from a source , with the concentration providing “ positional in- formation " that specifies the site of ...
... factors emanating from the notochord . Inducing factors in some cases appear to form a concentration gradient as they diffuse from a source , with the concentration providing “ positional in- formation " that specifies the site of ...
Sommario
CONCEPTIONS AND MISCONCEPTIONS | 7 |
EVOLUTION SINCE THE SYNTHESIS | 13 |
ADAPTATION AND ENVIRONMENT | 19 |
Copyright | |
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adaptive advantage allele allele frequency animals appear arise associated average become behavior biological cause cells Chapter characteristics characters chromosome common competition condition conversion copies correlation depends determined developmental differentiation distribution divergence Drosophila ecological effect elements environment enzyme equilibrium evidence evolution evolutionary evolved example exist expression extinction factors Figure fitness fossil frequency function gene genetic genetic drift genome genotypes geographic greater groups growth higher host human hybrid important increase individual insects interactions isolation less linkage loci locus lower major males mating mean mechanisms morphological mutation natural selection occur organisms origin pairs pattern phenotypic plants Pleistocene polymorphism population possible predators Press probability proteins reduced region relationships relative represent reproductive response sequence similar single speciation species structure taxa term theory tion traits variance variation vary