Functional Richness and Relative Resilience of Bird Communities in Regions with Different Land Use Intensities

Research output: Journal contributionsJournal articlesResearchpeer-review

Authors

  • Jörn Fischer
  • D. B. Lindenmayer
  • S. P. Blomberg
  • R. Montague-Drake
  • A. Felton
Empirical estimates of the function and resilience of communities under different management regimes can provide valuable information for sustainable natural resource management, but such estimates are scarce to date. We quantified the functional richness and relative resilience of bird communities inhabiting five regions in southeastern Australia that represented different management regimes. First, we show that functional richness and relative resilience were reduced at species-poor sites in all regions. Second, we show that bird communities in agricultural regions had fewer body mass groups and fewer functional groups than expected by chance. This suggests that both the function and the resilience of bird communities in agricultural regions were reduced. The likely mechanisms for the observed loss of function and relative resilience are: (1) the simplification of landscape texture resulting in selective extinction of certain body mass groups; and (2) the selective extinction of certain functional groups that are particularly sensitive to intensive land use. © 2007 Springer Science+Business Media, LLC.
Original languageEnglish
JournalEcosystems
Volume10
Issue number6
Pages (from-to)964-974
Number of pages11
ISSN1432-9840
DOIs
Publication statusPublished - 09.2007
Externally publishedYes

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