Environmental Studies

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r-selection

A Dictionary of Earth Sciences | 1999 | | Copyright

r-selection The natural selection of those organisms that breed in such a way as to maximize their intrinsic rate of increase (r) so that when favourable conditions occur (e.g. in a newly formed habitat) the species concerned can rapidly colonize the area. Such an opportunist strategy, based on producing large numbers of seeds, spores, eggs, or offspring most of which perish, is advantageous in rapidly changing environments, as in the early stages of a succession. Compare K-SELECTION.

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AILSA ALLABY and MICHAEL ALLABY. "r-selection." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "r-selection." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O13-rselection.html

AILSA ALLABY and MICHAEL ALLABY. "r-selection." A Dictionary of Earth Sciences. 1999. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-rselection.html

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r-selection

A Dictionary of Ecology | 2004 | | Copyright

r-selection A selection for maximizing the intrinsic rate of increase (r) of an organism so that when favourable conditions occur (e.g. in a newly formed habitat) the species concerned can rapidly colonize the area. Such species are opportunists (see fugitive species). An opportunist strategy is advantageous in rapidly changing environments, as in the early stages of a succession. See also bet-hedging, biotic potential, and population explosion; compare K-selection.

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MICHAEL ALLABY. "r-selection." A Dictionary of Ecology. 2004. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "r-selection." A Dictionary of Ecology. 2004. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O14-rselection.html

MICHAEL ALLABY. "r-selection." A Dictionary of Ecology. 2004. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-rselection.html

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r-selection

A Dictionary of Plant Sciences | 1998 | | Copyright

r-selection A selection for maximizing the intrinsic rate of increase (r) of an organism so that when favourable conditions occur, e.g. in a newly formed habitat, the species concerned can rapidly colonize the area. Such species are opportunists (see FUGITIVE SPECIES). An opportunist strategy is advantageous in rapidly changing environments as in the early stages of a succession. See also BIOTIC POTENTIAL and POPULATION EXPLOSION; compare K-SELECTION.

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MICHAEL ALLABY. "r-selection." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "r-selection." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O7-rselection.html

MICHAEL ALLABY. "r-selection." A Dictionary of Plant Sciences. 1998. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-rselection.html

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r-selection

A Dictionary of Zoology | 1999 | | Copyright

r-selection Selection for maximizing the biotic potential (r) of an organism so that when favourable conditions occur (e.g. in a newly formed habitat) the species concerned can rapidly colonize the area. Such species are opportunists. An opportunist strategy is advantageous in rapidly changing environments as in the early stages of a succession. See also BET-HEDGING; BIOTIC POTENTIAL; POPULATION EXPLOSION. Compare K-SELECTION.

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Pick a style below, and copy the text for your bibliography.

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MICHAEL ALLABY. "r-selection." A Dictionary of Zoology. 1999. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "r-selection." A Dictionary of Zoology. 1999. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O8-rselection.html

MICHAEL ALLABY. "r-selection." A Dictionary of Zoology. 1999. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-rselection.html

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