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endemism

A Dictionary of Earth Sciences | 1999 | | Copyright

endemism Situation in which a species or other taxonomic group (see CLASSIFICATION; and TAXONOMY) is restricted to a particular geographic region, due to factors such as isolation or response to soil or climatic conditions. Such a taxon is said to be endemic to that region. The size of the region in this context will usually depend on the status of the taxon: thus a family will be endemic to a much larger area than a species, all other things being equal. Reference is frequently made to ‘narrow endemics’, i.e. taxa with markedly restricted ranges. Some of these are evolutionary relics, such as the maidenhair tree (Ginkgo biloba), the only surviving species of the Ginkgoales, confined to Chekiang Province, China, where it was discovered in 1758.

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AILSA ALLABY and MICHAEL ALLABY. "endemism." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "endemism." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O13-endemism.html

AILSA ALLABY and MICHAEL ALLABY. "endemism." A Dictionary of Earth Sciences. 1999. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-endemism.html

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endemism

A Dictionary of Plant Sciences | 1998 | | Copyright

endemism A situation in which a species or other taxonomic group is restricted to a particular geographic region, owing to factors such as isolation or in response to soil or climatic conditions. Such a taxon is said to be endemic to that region. The size of the region in this context will usually depend on the status of the taxon; thus, a family will be endemic to a much larger area than a species, all other things being equal. Reference is frequently made to ‘narrow endemics’, i.e. taxa with markedly restricted ranges. Some of these are evolutionary relics, such as the maidenhair tree (Ginkgo biloba), a single species within a single genus which is confined to Chekiang Province, China, where it was discovered in 1758.

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MICHAEL ALLABY. "endemism." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "endemism." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O7-endemism.html

MICHAEL ALLABY. "endemism." A Dictionary of Plant Sciences. 1998. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-endemism.html

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endemism

A Dictionary of Ecology | 2004 | | Copyright

endemism The situation in which a species or other taxonomic group is restricted to a particular geographic region, owing to factors such as isolation or response to soil or climatic conditions. Such a taxon is said to be endemic to that region. The size of the region in this context will usually depend on the status of the taxon: thus a family will be endemic to a much larger area than a species, all other things being equal. Reference is frequently made to ‘narrow endemics’ (i.e. taxa with markedly restricted ranges). Some of these are evolutionary relics, such as the maidenhair tree (Ginkgo biloba), a single species within a single genus which is confined to Chekiang Province, China, where it was discovered in 1758.

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MICHAEL ALLABY. "endemism." A Dictionary of Ecology. 2004. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "endemism." A Dictionary of Ecology. 2004. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O14-endemism.html

MICHAEL ALLABY. "endemism." A Dictionary of Ecology. 2004. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-endemism.html

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endemism

A Dictionary of Zoology | 1999 | | Copyright

endemism The situation in which a species or other taxonomic group is restricted to a particular geographic region, due to factors such as isolation or response to soil or climatic conditions. Such a taxon is said to be endemic to that region. The size of the region in this context will usually depend on the status of the taxon: thus a family will be endemic to a much larger area than a species, all other things being equal.

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MICHAEL ALLABY. "endemism." A Dictionary of Zoology. 1999. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "endemism." A Dictionary of Zoology. 1999. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O8-endemism.html

MICHAEL ALLABY. "endemism." A Dictionary of Zoology. 1999. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-endemism.html

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Free newspaper and magazine articles

	Areas of endemism of Mexican terrestrial mammals: a case study using species'... Magazine article from: Interciencia; 3/1/2007
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