LEWONTIN THE MEANING OF STABILITY PDF

Local stability. • Alternate stable states. Page Alternate stable states. Time. Parameter. Min. Max. Page Richard Lewontin. “The meaning of stability” . R. C. Lewontin, “The meaning of stability,” Brookhaven Symposia in Biology, vol. 22, pp. 13–24, Lewontin RC () The meaning of stability. In: Diversity and Stability in Ecological Systems Brookhaven Symp Biol pp. 13– PubMed.

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In general, predator removal causes prey community shifts enabling one or few algal or invertebrate competitive dominants to proliferate.

The meaning of stability. This paper has been referenced on Twitter 3 times over the past 90 days. EulissDonald O. Introduction Natural communities can exist at multiple stable points in time or space [1]. With sea otters absent, dense sea urchin populations overgraze and exclude foliose macroalgae.

We analysed a set of functional traits: TngGreg J. We measured functional traits of trees and shrubs across tropical and temperate rainforest — open vegetation transitions in Australia, with giant eucalypt forests situated between these vegetation types.

Citations Publications citing this paper. The two types of giant eucalypt forests also exhibited greater overall functional similarity to each other than to any of the open vegetation types. Ecological theory differentiates rainforest and open vegetation in many regions as functionally divergent alternative stable states with transitional ecotonal vegetation between the two forming transient unstable states.

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McKennaJames W. Phase shifts and stable states on coral reefs Steve R. Significant changes in the oc of key species are widely cited as evidence of phase shifts [5, 6] but see [7] and have been documented both experimentally [8] and empirically [9, 10] in coastal marine ecosystems.

Robustness and Lewontn History: This paper has citations. The background and some current problems of theoretical ecology Robert P. In multivariate analyses, tropical and temperate rainforest diverged functionally, and both segregated from open vegetation.

We conclude that tropical and temperate giant eucalypt forests are ecologically and functionally convergent. Skip to search form Skip to main content. JordanDavid M.

The meaning of stability.

BlancoChih-Wei YuB. A quantitative framework for assessing ecological resilience.

In the early s a rapid otter population decline released urchins from predation and caused a shift to the urchin-dominated state.

Angeler Ecology and society: Kelp Forests versus Urchin Barrens: Our results have important implications for giant eucalypt forest management. With sea otters present, sea urchins are reduced to sparse populations enabling kelps to flourish. Citation Statistics Citations 0 10 20 ’74 ’84 ’95 ’06 ‘ Findings suggest that although urchin stabliity provide more abundant urchin prey, individual urchins are smaller and provide lower biomass and potential energy density compared fhe kelp forests.

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Although multiple stable states can exist simultaneously, communities typically alternate from one stable state to another, a shift often conveyed by a large perturbation applied stsbility to the state variables e.

The meaning of stability.

Lewontin Published in Brookhaven symposia in biology Save to Library. Although debated, prey quality changes have been implicated in current otter population status. Semantic Scholar estimates that this publication has citations based on the available data. By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy PolicyTerms of Serviceand Dataset License. LabaughNed H. Furthermore, the giant eucalypt forests stavility in function with their respective rainforests.

Shifts to urchin barrens do affect prey quality but changes lewonfin likely compensated by increased prey densities and are insufficient in explaining current otter population status in the Aleutians. Reorganization of interaction networks modulates the persistence of species in late successional stwbility. See our FAQ for additional information.

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