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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Interplay between stochastic and deterministic processes in the maintenance of alternative community states in Verrucomicrobia-dominated shallow lakes. 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 directly to the state variables e.

Significant changes in the abundance of key species are widely cited as evidence of phase shifts [5, 6] but see [7] and lewomtin been documented both experimentally [8] and empirically [9, 10] in coastal marine ecosystems.

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. Skip to search form Skip to main content. TngGreg J.

The meaning of stability.

This paper has citations. 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. 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. Citations Publications citing this paper. Shifts to urchin barrens do affect prey quality but changes are likely compensated by increased prey densities and are insufficient in explaining current otter population status in the Aleutians.

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

MushetOwen P. In the early s, a rapid sea otter population decline ca. JordanDavid M. Kelp Forests versus Urchin Barrens: We measured functional traits of trees and shrubs across tropical and temperate rainforest — meanlng vegetation transitions in Australia, with giant eucalypt forests situated between these vegetation types.

This paper has been referenced on Twitter 3 times over the past 90 days. In multivariate analyses, tropical and temperate rainforest diverged functionally, and both segregated from open vegetation. pewontin

The meaning of stability.

Our results have important implications for giant eucalypt forest management. Such states are nontransitory, persist over ecologically relevant timescales, and are therefore considered domains of stable equilibrium [2, 3]. LabaughNed H. Moving from Ecological Conservation to Restoration: Reorganization of interaction networks modulates neaning persistence of species in late successional stages.


The meaning of stability. – Abstract – Europe PMC

Furthermore, the giant eucalypt forests overlapped in function with their respective rainforests. BlancoChih-Wei YuB. Macroalgal and urchin barren communities are alternately stable and persist in the Aleutians due to sea otter presence and absence. Introduction Natural communities can exist at multiple stable points in time or space [1].

The lack of clear functional differentiation from rainforest suggests that giant eucalypt forests are unstable states within the basin of attraction of rainforest. 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. Despite increases in urchin abundance, otter numbers continued to decline. By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy PolicyTerms of Serviceand Dataset License.

Robustness and Contingent History: Showing of 65 extracted citations. For most traits, giant eucalypt forest was similar to rainforest, while rainforest, particularly tropical rainforest, was significantly different from the open vegetation. Semantic Scholar estimates that this publication has citations based on the available data.