The Stability of Ecosystems

Stability criteria and phase boundaries for complex ecosystems are obtained and contrasted with previously studied scenarios. The stability of such systems is determined by the behaviour of the largest eigenvalue of matrices governing the response of the system to small perturbations. As a result we...

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Veröffentlicht in:	Proceedings of the Royal Society of London. Series B, Biological sciences Biological sciences, 1989-06, Vol.237 (1286), p.43-51
Hauptverfasser:	Hogg, T., Huberman, B. A., McGlade, Jacqueline M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal and plant ecology Animal ecology Animal, plant and microbial ecology Animals Biological and medical sciences Communities Ecology Ecosystem models Ecosystems Eigenvalues Environment Food Supply Food webs Fundamental and applied biological sciences. Psychology General aspects Models, Statistical Models, Theoretical Population Dynamics Population ecology Species Synecology Trophic relationships
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Beschreibung
Zusammenfassung:	Stability criteria and phase boundaries for complex ecosystems are obtained and contrasted with previously studied scenarios. The stability of such systems is determined by the behaviour of the largest eigenvalue of matrices governing the response of the system to small perturbations. As a result we show that ecosystems with unstructured cooperative interactions between arbitrary species can be less stable than had been previously determined. We also examine hierarchical ecologies, and demonstrate their increased stability under certain conditions.
ISSN:	0962-8452 0080-4649 0950-1193 1471-2954 2053-9193
DOI:	10.1098/rspb.1989.0035