Environmental Studies

A Dictionary of Plant Sciences A Dictionary of Ecology Further reading

centre of origin

A Dictionary of Plant Sciences | 1998 | | Copyright

centre of origin A geographical location or local region (often in the tropics) where a particular group of organisms is believed to have originated. Many authorities believe centres of origin are also centres of diversity. For example, there are 6 genera of Palmae (palms) in the lower part of the Amazon basin, twice the number found anywhere else. It is difficult, however, to reconcile this explanation of centres of origin with the concept of allopatric speciation.

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MICHAEL ALLABY. "centre of origin." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "centre of origin." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O7-centreoforigin.html

MICHAEL ALLABY. "centre of origin." A Dictionary of Plant Sciences. 1998. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-centreoforigin.html

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centre of origin

A Dictionary of Ecology | 2004 | | Copyright

centre of origin The region where a particular group of organisms is believed to have originated. Many authorities believe centres of origin are also centres of diversity. For example, the tropical timber-tree family Dipterocarpaceae is strongly concentrated in the Malay Peninsula, Sumatra, and Borneo, although it ranges from Africa to New Guinea. It is difficult, however, to reconcile this explanation of centres of origin with the concept of allopatric speciation.

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MICHAEL ALLABY. "centre of origin." A Dictionary of Ecology. 2004. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "centre of origin." A Dictionary of Ecology. 2004. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O14-centreoforigin.html

MICHAEL ALLABY. "centre of origin." A Dictionary of Ecology. 2004. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-centreoforigin.html

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Free newspaper and magazine articles

	American inspiration: the story of the Diefenbaker Centre's unlikely origins. Magazine article from: American Review of Canadian Studies; 12/22/2006
	Facts and origins of the NB Centre.(Business) Newspaper article from: Daily Post (Liverpool, England); 8/4/2004
	Canada's International Development Research Centre's Eco-Health Projects with... Magazine article from: Canadian Journal of Public Health; 11/1/2006