BiogeographyBiogeography, Second Edition combines ecological and historical perspectives to show how contemporary environments, earth history, and evolutionary processes have shaped the distributions of species and the patterns of biodiversity. It illustrates general patterns and processes using examples from different groups of plants and animals from diverse habitats and geographic regions. Written primarily for use in undergraduate and graduate courses in plant and/or animal geography, the book serves as a general synthesis and reference as well. |
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Page 57
... populations . The great naturalist Joseph Grinnell ( 1922 ) suggested that many pe- ripheral populations have death rates that ex- ceed birth rates and are sustained by a continual influx of immigrants from central populations that ...
... populations . The great naturalist Joseph Grinnell ( 1922 ) suggested that many pe- ripheral populations have death rates that ex- ceed birth rates and are sustained by a continual influx of immigrants from central populations that ...
Page 165
... populations , but the random sampling of genes from each genera- tion can have important influences on the evo- lution of small populations . How small is a matter of considerable discussion in evolution- ary biology , but if new ...
... populations , but the random sampling of genes from each genera- tion can have important influences on the evo- lution of small populations . How small is a matter of considerable discussion in evolution- ary biology , but if new ...
Page 169
... populations by the formation of a geographic barrier ( stages 2 and 3 ) . After a period of isolation the barrier disappears and one of two outcomes are possible : if sufficient differentiation has occurred in allopatry , the two ...
... populations by the formation of a geographic barrier ( stages 2 and 3 ) . After a period of isolation the barrier disappears and one of two outcomes are possible : if sufficient differentiation has occurred in allopatry , the two ...
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Common terms and phrases
adapted adaptive radiation Africa angiosperms animals aquatic areas Australasia Australia barriers biogeographic biotas biotic Cenozoic changes Chapter cies cladistic cladogram climate colonization communities competition continental continental drift continents Cretaceous desert disjunctions distributions drift eastern ecological elevation endemic environment Eocene Eurasia evolution evolutionary example extinction families fauna Figure fishes forms fossil record freshwater genera geographic ranges geologic Gondwanaland groups Guinea habitats inhabiting insects insular interactions isolated lakes land bridge landmasses latitudes limited living long-distance dispersal MacArthur Madagascar mainland major mammals marine Mesozoic migration million years BP mountain Neotropics niches North Northern Hemisphere number of species occur oceanic islands organisms origin Pacific Paleocene patterns phylogenetic plants plate Pleistocene polyploidy populations predators present radiation rain forest reconstructions regions relationships relatively Simberloff similar soil South America southern speciation species richness taxa taxon taxonomic temperate temperature terrestrial tion tropical vegetation vicariance World zone