Ecosystems

, Volume 1, Issue 1, pp 6-18

Ecological Resilience, Biodiversity, and Scale

  • Garry  PetersonAffiliated withDepartment of Zoology, Box 118525, University of Florida, Gainesville, FL 32611
  • , Craig R.  AllenAffiliated withDepartment of Wildlife Ecology and Conservation, 117 Newins-Zeigler Hall, University of Florida, Gainesville, FL 32611, USA
  • , C. S.  HollingAffiliated withDepartment of Zoology, Box 118525, University of Florida, Gainesville, FL 32611

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ABSTRACT

We describe existing models of the relationship between species diversity and ecological function, and propose a conceptual model that relates species richness, ecological resilience, and scale. We suggest that species interact with scale-dependent sets of ecological structures and processes that determine functional opportunities. We propose that ecological resilience is generated by diverse, but overlapping, function within a scale and by apparently redundant species that operate at different scales, thereby reinforcing function across scales. The distribution of functional diversity within and across scales enables regeneration and renewal to occur following ecological disruption over a wide range of scales.

Key words: biodiversity; cross-scale; ecological function; ecological organization; functional group; keystone; multiple stable states; resilience; scale; stability.