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| rdfs:comment | - Speciation is the evolutionary process by which new biological species arise. There are four modes of natural speciation, based on the extent to which speciating populations are geographically isolated from one another: allopatric, peripatric, parapatric, and sympatric. Speciation may also be induced artificially, through animal husbandry or laboratory experiments. Observed examples of each kind of speciation are provided throughout.
- Speciation is the development of a new species. A new species is formed when two populations, which were formerly of the same species, cannot or will not interbreed.
- Speciation is the evolutionary process that results in new species. Evolution, specifically macroevolution, can be looked at as the origin of species. The pattern of speciation is a branching tree of historical relatedness. Speciation occurs when two populations of a parent species evolve divergently after becoming reproductively isolated. Reproductive isolation can be due to allopatric (geographic) speciation, hybridization, or polyploidy, that is chromosome multiplication.
- Speciation is the evolutionary process by which new biological species arise. The biologist Orator F. Cook seems to have been the first to coin the term 'speciation' for the splitting of lineages or 'cladogenesis,' as opposed to 'anagenesis' or 'phyletic evolution' occurring within lineages. Whether genetic drift is a minor or major contributor to speciation is the subject of much ongoing discussion. There are four geographic modes of speciation in nature, based on the extent to which speciating populations are geographically isolated from one another: allopatric, peripatric, parapatric, and sympatric. Speciation may also be induced artificially, through animal husbandry or laboratory experiments. Observed examples of each kind of speciation are provided throughout.
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| abstract | - Speciation is the evolutionary process by which new biological species arise. There are four modes of natural speciation, based on the extent to which speciating populations are geographically isolated from one another: allopatric, peripatric, parapatric, and sympatric. Speciation may also be induced artificially, through animal husbandry or laboratory experiments. Observed examples of each kind of speciation are provided throughout.
- Speciation is the development of a new species. A new species is formed when two populations, which were formerly of the same species, cannot or will not interbreed.
- Speciation is the evolutionary process that results in new species. Evolution, specifically macroevolution, can be looked at as the origin of species. The pattern of speciation is a branching tree of historical relatedness. Speciation occurs when two populations of a parent species evolve divergently after becoming reproductively isolated. Reproductive isolation can be due to allopatric (geographic) speciation, hybridization, or polyploidy, that is chromosome multiplication.
- Speciation is the evolutionary process by which new biological species arise. The biologist Orator F. Cook seems to have been the first to coin the term 'speciation' for the splitting of lineages or 'cladogenesis,' as opposed to 'anagenesis' or 'phyletic evolution' occurring within lineages. Whether genetic drift is a minor or major contributor to speciation is the subject of much ongoing discussion. There are four geographic modes of speciation in nature, based on the extent to which speciating populations are geographically isolated from one another: allopatric, peripatric, parapatric, and sympatric. Speciation may also be induced artificially, through animal husbandry or laboratory experiments. Observed examples of each kind of speciation are provided throughout.
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