Evolutionary BiologyFutuyma (ecology and evolution, SUNY Stony Brook) covers such subject areas as phylogeny, paleobiology, genetic mechanisms of change and speciation, character evolution, the theory of processes and macroevolution, and new molecular perspectives. Numerous line drawings, charts, diagrams, and maps are provided. Annotation copyrighted by Book News, Inc., Portland, OR |
Dall'interno del libro
Risultati 1-3 di 53
Pagina 21
Clearly evolution cannot exist without preexisting variation . Evolution can consist of changes at each of the levels at which variation exists . So the evolution of body size can be described as changes in the proportions of large vs.
Clearly evolution cannot exist without preexisting variation . Evolution can consist of changes at each of the levels at which variation exists . So the evolution of body size can be described as changes in the proportions of large vs.
Pagina 218
ation exists that the capacity for rapid genetic response to environmental changes must be immanent in almost ... Moreover it is possible by artificial selection to transcend the limits of variation that ordinarily exist within the ...
ation exists that the capacity for rapid genetic response to environmental changes must be immanent in almost ... Moreover it is possible by artificial selection to transcend the limits of variation that ordinarily exist within the ...
Pagina 356
As long as additive genetic variance exists for a character like viability , the mean viability will continue to evolve ... given the conclusion that the population should become monomorphic for such a trait , does the variation exist ?
As long as additive genetic variance exists for a character like viability , the mean viability will continue to evolve ... given the conclusion that the population should become monomorphic for such a trait , does the variation exist ?
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Sommario
The Origin and Impact of Evolutionary Thought | 3 |
A Synopsis of Evolutionary Theory | 19 |
Heredity and Development | 33 |
Copyright | |
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adaptive advantageous alleles alterations ancestor appear arise associated average become behavior biological birds body bristle cause cent Chapter character characteristics chromosome common complex consists depends derived determined developmental differentiation direction Discuss distribution diversity dominant drift Drosophila ecological effect environment environmental enzyme equal equilibrium evidence evolution evolutionary evolved example exist extinction factors females Figure fitness fossil function gene flow gene frequency genetic genetic variation genotypes geographic greater growth heterozygotes higher highly human hybrid important increase individuals insects instances interactions isolated kinds less loci locus major males mating mean mechanisms mutation natural selection occur offspring organisms origin patterns phenotypic plants Pleistocene polymorphic population possible predators present probability produce proportion recombination relative reproduction response sexual similar single speciation species structure suggests theory tion variance vary