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 10
... arise in one or a few steps as discrete mutations . If species can arise purely by mutation , their origin does not require natural selection . Thus Darwin's key principles of natural selection and gradual change were dismissed . ( A ...
... arise in one or a few steps as discrete mutations . If species can arise purely by mutation , their origin does not require natural selection . Thus Darwin's key principles of natural selection and gradual change were dismissed . ( A ...
Pagina 223
... arise in many ways , and speciation can accordingly be classified into different modes . Two such classifications ( Table I ) emphasize , respectively , the geographic scale on which speciation may occur , and the genetic events ...
... arise in many ways , and speciation can accordingly be classified into different modes . Two such classifications ( Table I ) emphasize , respectively , the geographic scale on which speciation may occur , and the genetic events ...
Pagina 227
... arise parapatrically . Numerous cases of localized geographic variation show that considerable genetic divergence can arise despite gene flow ( Chapter 4 ) . A major argument against parapatric speciation has been that the spatial ...
... arise parapatrically . Numerous cases of localized geographic variation show that considerable genetic divergence can arise despite gene flow ( Chapter 4 ) . A major argument against parapatric speciation has been that the spatial ...
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adaptive adaptive radiation allele frequency allozyme Amer amino acid ancestor animals average behavior biological birds bristle number caused cells Chapter characters chromosome cladistic coefficient coevolution competition copies correlated deleterious developmental differentiation distribution divergence Dobzhansky Drosophila melanogaster ecological effect environment environmental enzyme equilibrium evidence evolutionary change evolved example extinction rate factors favor females Figure fitness fossil record function Futuyma gametes gene conversion gene flow gene frequencies genetic drift genetic variation genome genotypes geographic groups habitats heritability heterozygotes heterozygous higher taxa homozygotes homozygous host human hybrid inbreeding increase individual insects interactions Lewontin linkage disequilibrium loci locus males mammals mating mechanisms molecular morphological mutation natural selection nucleotide occur offspring organisms pairs parasites pattern phenotype phylogenetic phylogeny plants polymorphism predators prey proteins pseudogenes random recombination relative reproductive isolation sequence sexual similar speciation structure survival sympatric taxon theory tion trait transposable elements variable variance