Intraspecific variation in detection of bird-habitat relationships: declining birds in Southern Australian Woodlands

Lill, Alan and Maron, Martine (2006) Intraspecific variation in detection of bird-habitat relationships: declining birds in Southern Australian Woodlands. Pacific Conservation Biology, 12 (4). pp. 301-312. ISSN 1038-2097


An understanding of the responses of declining bird species to habitat loss, fragmentation and degradation is essential
for their conservation. However, species' relationships with particular threatening processes may vary in different systems, and long-term variability in bird communities and differences in sampling protocols may cause different real or apparent habitat relationships to be detected in the same system at different times. We investigated temporal variation in detection of relationships between habitat remnant size, isolation and degradation and the presence of several bird species that are known to be declining in southern Australia. Habitat relationships detected for these species were compared with a) those detected for the same species in the same remnants in surveys undertaken seven years previously, and b)thosse reported from other fragmented, southern Australian systems. Most of the relationships displayed by the study species in other landscapes were not apparent in this system, and there were temporal differences in the detected landscape and habitat relationships of several species. These findings indicate that the effects of habitat fragmentation can appear to vary in their impact on a species among landscapes, as well as through time, which complicates considerably the task of conservation managers. Correlative relationships between species' presence and habitat characteristics can be misleading if the mechanisms through which the habitat factors influence species are not understood.

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Item Type: Article (Commonwealth Reporting Category C)
Item Status: Live Archive
Faculty/School / Institute/Centre: Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited: 30 Nov 2007 11:47
Last Modified: 03 Jul 2013 00:22
Uncontrolled Keywords: fragmentation, habitat degradation, habitat relationships, spatial and temporal variation, woodland birds
Fields of Research : ?? 602 ??
06 Biological Sciences > 0602 Ecology > 060202 Community Ecology(excl. Invasive Species Ecology)
05 Environmental Sciences > 0502 Environmental Science and Management > 050206 Environmental Monitoring
Socio-Economic Objective: D Environment > 96 Environment > 9608 Flora, Fauna and Biodiversity > 960806 Forest and Woodlands Flora, Fauna and Biodiversity

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