Are systems with strong underlying abiotic regimes more likely to exhibit alternative stable states?

Article Abstract:

Experiments have demonstrated how conceptual advances in alternative ecosystem states theory have led to a greater understanding of why degraded systems are often resilient to restoration management. It is suggested that the persistence of alternative stable states might be predicted from simple consideration of assembly rules for systems structured along a gradient of environmental adversity.

United States, Science & research, Research, Evolution (Biology), Evolution, Ecological research

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Opposing effects of grazing and nutrients on diversity

Article Abstract:

The counteractive effects of herbivores and nutrient enrichment on plant diversity and the reversed effects of grazers under different nutrient regimes are investigated. Species richness and evenness were the chosen response variables for the field experiments with periphyton communities in three different aquatic habitats and in different seasons.

Analysis, Influence, Plant communities, Herbivores, Nutrients

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