Fundamental Species Niche: Mechanism of Formation and Ecological Significance

Fundamental Species Niche: Mechanism of Formation and Ecological Significance Evolutionary stasis, or the long-term (over hundreds of thousands or even millions of years) existence of species in a phenotypically unchanging state, is conditioned by a counterbalance of directional selection vectors acting in opposition to one another. Fluctuations of living conditions for a species, leading to partial and often reversible disturbances of the counterbalance, lead to the development of redundant functional capacities of organisms. This redundancy determines the boundaries of the fundamental species niche and allows the realized niches of populations to change their spatiotemporal location within these boundaries without disturbing the counterbalance. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Ecology Springer Journals

Fundamental Species Niche: Mechanism of Formation and Ecological Significance

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2004 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Ecology
ISSN
1067-4136
eISSN
1608-3334
D.O.I.
10.1023/B:RUSE.0000046970.23100.6a
Publisher site
See Article on Publisher Site

Abstract

Evolutionary stasis, or the long-term (over hundreds of thousands or even millions of years) existence of species in a phenotypically unchanging state, is conditioned by a counterbalance of directional selection vectors acting in opposition to one another. Fluctuations of living conditions for a species, leading to partial and often reversible disturbances of the counterbalance, lead to the development of redundant functional capacities of organisms. This redundancy determines the boundaries of the fundamental species niche and allows the realized niches of populations to change their spatiotemporal location within these boundaries without disturbing the counterbalance.

Journal

Russian Journal of EcologySpringer Journals

Published: Nov 18, 2004

References

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