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. |
From inside the book
Results 1-3 of 15
Page 165
... genetic drift and natural selection . Genetic drift is by far the weaker of these , be- cause it involves changes in the genetic consti- tution of a population caused solely by chance events . Given sufficient periods of time , which ...
... genetic drift and natural selection . Genetic drift is by far the weaker of these , be- cause it involves changes in the genetic consti- tution of a population caused solely by chance events . Given sufficient periods of time , which ...
Page 168
... gene flow between them is virtually cut off . This is termed allopatric speciation , meaning the divergence occurs in ... genetic differences in re- sponse to either natural selection or genetic drift . Because of barriers that limit ...
... gene flow between them is virtually cut off . This is termed allopatric speciation , meaning the divergence occurs in ... genetic differences in re- sponse to either natural selection or genetic drift . Because of barriers that limit ...
Page 191
... genetic drift . Patterns of speciation and extinction in the fossil record . An interesting relationship between speciation rate , geographic distribu- tion , and mode of larval distribution has been described for marine invertebrates ...
... genetic drift . Patterns of speciation and extinction in the fossil record . An interesting relationship between speciation rate , geographic distribu- tion , and mode of larval distribution has been described for marine invertebrates ...
Other editions - View all
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