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generic cycles, theory of

generic cycles, theory of A theory which envisages a life cycle for a species or genus that resembles that of an individual. The first stage is characterized by vigorous spread; the second by maximum phyletic activity giving rise to new forms; the third marks a phase of decline in area, owing to competition within the offspring species; and the fourth and final stage sees the extinction of the species. Although in many ways a useful analogy, there is no evidence that species become senile and die out spontaneously.

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"generic cycles, theory of." A Dictionary of Ecology. . Encyclopedia.com. 18 Dec. 2017 <http://www.encyclopedia.com>.

"generic cycles, theory of." A Dictionary of Ecology. . Encyclopedia.com. (December 18, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/generic-cycles-theory

"generic cycles, theory of." A Dictionary of Ecology. . Retrieved December 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/generic-cycles-theory

generic cycles, theory of

generic cycles, theory of A theory that envisages a life cycle for a species or genus that resembles that of an individual. The first stage is characterized by vigorous spread; the second by maximum phyletic activity giving rise to new forms; the third marks a phase of decline in area owing to competition within the offspring species; and the fourth and final stage sees the extinction of the species. Although in many ways a useful analogy, there is no evidence that species become senile and die out spontaneously.

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"generic cycles, theory of." A Dictionary of Plant Sciences. . Encyclopedia.com. 18 Dec. 2017 <http://www.encyclopedia.com>.

"generic cycles, theory of." A Dictionary of Plant Sciences. . Encyclopedia.com. (December 18, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/generic-cycles-theory-0

"generic cycles, theory of." A Dictionary of Plant Sciences. . Retrieved December 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/generic-cycles-theory-0

generic cycles, theory of

generic cycles, theory of A theory that envisages a life cycle for a species or genus analogous to that of an individual. The first stage is characterized by vigorous spread; the second by maximum phyletic activity giving rise to new forms; the third marks a phase of decline in area due to competition within the offspring species; and the fourth and final stage sees the extinction of the species. Although in many ways a useful analogy, there is no evidence that species become senile and die out spontaneously.

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"generic cycles, theory of." A Dictionary of Zoology. . Encyclopedia.com. 18 Dec. 2017 <http://www.encyclopedia.com>.

"generic cycles, theory of." A Dictionary of Zoology. . Encyclopedia.com. (December 18, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/generic-cycles-theory-1

"generic cycles, theory of." A Dictionary of Zoology. . Retrieved December 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/generic-cycles-theory-1

theory of generic cycles

theory of generic cycles See generic cycles, theory of.

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"theory of generic cycles." A Dictionary of Ecology. . Encyclopedia.com. 18 Dec. 2017 <http://www.encyclopedia.com>.

"theory of generic cycles." A Dictionary of Ecology. . Encyclopedia.com. (December 18, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/theory-generic-cycles

"theory of generic cycles." A Dictionary of Ecology. . Retrieved December 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/theory-generic-cycles

theory of generic cycles

theory of generic cycles See GENERIC CYCLES, THEORY OF.

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"theory of generic cycles." A Dictionary of Zoology. . Encyclopedia.com. 18 Dec. 2017 <http://www.encyclopedia.com>.

"theory of generic cycles." A Dictionary of Zoology. . Encyclopedia.com. (December 18, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/theory-generic-cycles-1

"theory of generic cycles." A Dictionary of Zoology. . Retrieved December 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/theory-generic-cycles-1