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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BlancoChih-Wei YuB. Article citations Lewontin RC The meaning of stability.

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Stable points are characterized by a specific structural and functional species assemblage recognizably different from other assemblages that can occur under the same set of environmental conditions.

For most traits, giant eucalypt forest was similar to rainforest, while rainforest, particularly tropical rainforest, was significantly different from the open vegetation. JordanDavid M. Rohr The Journal of animal ecology Shifts to urchin barrens do o prey quality but changes are likely compensated by increased prey densities and are insufficient in explaining current otter population status in the Aleutians.

The background and some current problems of theoretical ecology Robert P. Moving from Ecological Conservation to Restoration: By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy PolicyTerms of Serviceand Dataset License. This paper has been referenced on Twitter 3 times over the past 90 days.

The meaning of stability.

Such states are nontransitory, persist over ecologically relevant timescales, and are therefore considered domains of stable equilibrium [2, 3]. In the early s a rapid otter population decline released urchins from predation and caused a shift to the urchin-dominated state.

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Lewontin Published in Brookhaven symposia in biology Save to Library. Furthermore, the giant eucalypt forests overlapped in function with their respective rainforests.

Angeler Ecology and society: 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. See our FAQ for additional information.

McKennaJames W. Phase shifts and stable states on coral reefs Steve R. This study examined otter prey abundance, size, biomass, and potential energy density in remnant kelp forest and urchin-dominated communities to determine if alternate stable states affect prey quality. The meaning of stability. 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 ‘ DudgeonRichard B. Although debated, prey quality changes have been implicated in current otter population status.

The meaning of stability.

We analysed a set of functional staability Mushet meabing, Owen P. Findings suggest that although urchin barrens provide more abundant urchin prey, individual urchins are smaller and provide lower biomass and potential energy density compared to kelp forests. Skip to search form Skip to main content. Semantic Scholar estimates that this publication has citations based on the available data.

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.

The two types of giant eucalypt forests also exhibited greater overall functional similarity to each other than to any of the open vegetation types. TngGreg J.

Despite increases in urchin abundance, otter numbers continued to decline. Citations Publications citing this paper.

In multivariate analyses, tropical and temperate rainforest diverged functionally, and both segregated from open vegetation. Significant changes in the abundance 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.

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Introduction Natural communities can exist at multiple stable points in time or space [1]. Macroalgal and lewonitn barren communities are alternately stable and persist in the Aleutians due to sea otter presence and absence.

Showing of 65 extracted citations. LabaughNed H. In ecological studies in the Aleutian Islands, the presence and absence of dense sea otter populations can instigate state shifts between two alternately stable nearshore communities, one dominated by kelp and the other by sea urchins [11—13]. A quantitative framework for assessing lewkntin resilience. In the early s, a rapid sea otter population decline ca. With sea otters absent, dense sea urchin populations overgraze and exclude foliose macroalgae.

In general, predator removal causes prey community shifts enabling one or few algal or invertebrate competitive dominants to proliferate. Lewonti of interaction networks modulates the persistence of species in late successional stages. Sability results have important implications for giant eucalypt forest management.

The meaning of stability. – Semantic Scholar

This paper has citations. Robustness and Contingent History: The lack of clear functional differentiation from rainforest suggests that giant eucalypt forests are unstable states within the basin of attraction of rainforest. We therefore created predictions of patterns in plant functional traits that would test the alternative stable states model of these systems.