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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Risultati 1-3 di 85
Pagina 371
... greater prevalence of nonplanktotrophic species in several groups . SUMMARY After each of the several mass extinctions in the history of life , diversity has rapidly increased , and has reached successively higher equilibrium levels ...
... greater prevalence of nonplanktotrophic species in several groups . SUMMARY After each of the several mass extinctions in the history of life , diversity has rapidly increased , and has reached successively higher equilibrium levels ...
Pagina 487
... greater energy content , but decreases because of greater handling time ; thus seeds of intermediate size have maximal food value , measured as mg consumed per second . Beak size , and hence rapidity of husking , is least for chipping ...
... greater energy content , but decreases because of greater handling time ; thus seeds of intermediate size have maximal food value , measured as mg consumed per second . Beak size , and hence rapidity of husking , is least for chipping ...
Pagina 530
... greater investment for the females than for males , so the cost ( in Darwinian fitness ) of a reproductive mistake is greater . Moreover , the female of a mated pair is certain that the offspring are hers , but the male is not ; so the ...
... greater investment for the females than for males , so the cost ( in Darwinian fitness ) of a reproductive mistake is greater . Moreover , the female of a mated pair is certain that the offspring are hers , but the male is not ; so the ...
Sommario
CONCEPTIONS AND MISCONCEPTIONS | 7 |
EVOLUTION SINCE THE SYNTHESIS | 13 |
ADAPTATION AND ENVIRONMENT | 19 |
Copyright | |
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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