Functional group change within and across scales following invasions and extinctions in the Everglades ecosystem

Elizabeth A. Forys, Craig R. Allen

Research output: Contribution to journalArticlepeer-review

51 Scopus citations

Abstract

Cross-scale resilience theory predicts that the combination of functional diversity within scales and functional redundancy across scales is an important attribute of ecosystems because it helps these systems resist minor ecological disruptions and regenerate after major disturbances such as hurricanes and fire. Using the vertebrate fauna of south Florida, we quantified how the loss of native species and invasion by nonnatives may alter functional group richness within and across scales. We found that despite large changes in species composition due to potential extinctions and successful invasions by nonnative species, functional group richness will not change significantly within scales, there will not be any significant loss of overall redundancy of ecology function across scales, and overall body mass pattern will not undergo substantial change. However, the types of functions performed will change, and this change may have profound effects on not only the Everglades ecosystem but on the entire landscape of south Florida.

Original languageEnglish (US)
Pages (from-to)339-347
Number of pages9
JournalEcosystems
Volume5
Issue number4
DOIs
StatePublished - Jun 2002
Externally publishedYes

Keywords

  • Cross-scale resilience
  • Diversity
  • Ecosystem structure
  • Endangered species
  • Everglades ecosystem
  • Extinctions
  • Florida
  • Functional group
  • Invasive species
  • Nonnative species

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Environmental Chemistry
  • Ecology

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