Temporal variation in a savanna bird assemblage: what changes over 5 years?
AS Kutt, GC Perkins, N Colman, EP Vanderduys, JJ Perry
Emu - Austral Ornithology | CSIRO PUBLISHING | Published : 2012
Tropical savanna environments are characterised by annual and decadal patterns of resource change, which can affect the patterning of mobile fauna such as birds. In this study, we sampled 60 sites in northern Queensland, four times from 2004 to 2008. We investigated how the bird richness and abundance, and species turnover changed over the sample years and how this differed with vegetation structure. The mean abundance per site was highest in 2005 (92.1 ± 12.0 individuals ha -1) and lowest in 2008 (46.6±3.3), whereas species richness per site was highest in 2004 (19.6 ± 0.9 species ha -1) and lowest again in 2008 (14.7±0.8). Nine species were most abundant in 2004 coincident with extremely h..View full abstract
The production and writing of this manuscript was supported by funding from CSIRO Ecosystem Sciences and the Building Resilient Australian Biodiversity Assets Theme. Sue McIntyre and Veronica Doerr (CSIRO Ecosystem Sciences), Michael Mathieson (Queensland Department of Environment and Resource Management) and Mike Lawes (Charles Darwin University) and anonymous reviewers provided valuable comments to early drafts of this manuscript.