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 91
Pagina 52
We thus have an n - dimensional space , with one axis for each of n
environmental factors . Within this space is a region consisting of a cloud of
points , each representing a particular combination of temperature , prey size ,
salinity , copper ...
We thus have an n - dimensional space , with one axis for each of n
environmental factors . Within this space is a region consisting of a cloud of
points , each representing a particular combination of temperature , prey size ,
salinity , copper ...
Pagina 60
ment , the density attained when population growth is stopped by limiting factors ,
whatever they may be . “ The causes which check the natural tendency of each
species to increase are most obscure , ” Darwin said , and they still are .
ment , the density attained when population growth is stopped by limiting factors ,
whatever they may be . “ The causes which check the natural tendency of each
species to increase are most obscure , ” Darwin said , and they still are .
Pagina 73
What factors limit the geographic range of a species ? Over a geographic transect
the environment usually changes gradually , but the edge of a species ' range is
often abrupt . Why ? Why should it be incapable of adapting enough to extend ...
What factors limit the geographic range of a species ? Over a geographic transect
the environment usually changes gradually , but the edge of a species ' range is
often abrupt . Why ? Why should it be incapable of adapting enough to extend ...
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Sommario
A Synopsis of Evolutionary Theory | 19 |
Heredity and Development | 33 |
The Ecological Context of Evolutionary Change | 51 |
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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