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Novel ecosystems: implications for conservation and restoration.

Richard J Hobbs1, Eric Higgs, James A Harris

  • 1School of Plant Biology, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia. rhobbs@cyllene.uwa.edu.au

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Ecosystems are transforming due to climate change, land use, and species shifts. Conservation must adapt to these novel ecosystems, moving beyond historical baselines.

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Area of Science:

  • Ecology
  • Conservation Biology
  • Environmental Science

Background:

  • Ecosystems are undergoing rapid transformations driven by global and local changes.
  • These changes include biotic factors like species extinction and invasion, and abiotic factors such as land use and climate change.

Purpose of the Study:

  • To discuss the emergence of novel ecosystems under various environmental pressures.
  • To explore the implications of these transformations for conservation and restoration practices.

Main Methods:

  • Conceptual analysis of ecosystem dynamics.
  • Review of ecological changes driven by biotic and abiotic factors.

Main Results:

  • Ecosystem transformations result in hybrid systems with retained and novel characteristics, or entirely novel systems with new species, interactions, and functions.
  • Both primarily biotic and primarily abiotic changes, as well as combined factors, drive these ecosystem shifts.

Conclusions:

  • Novel ecosystems necessitate a significant revision of traditional conservation and restoration approaches.
  • Conservation and restoration should shift focus from historical assemblages to managing contemporary and future ecological configurations.