Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/54713
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Type: Journal article
Title: Climate Change Enhances the Potential Impact of Infectious Disease and Harvest on Tropical Waterfowl
Author: Traill, L.
Bradshaw, C.
Field, H.
Brook, B.
Citation: Biotropica, 2009; 41(4):414-423
Publisher: Assoc Tropical Biology Inc
Issue Date: 2009
ISSN: 0006-3606
1744-7429
Statement of
Responsibility: 
Lochran W. Traill, Corey J. A. Bradshaw, Hume E. Field and Barry W. Brook
Abstract: Global warming exacerbates threats to biodiversity as ecological systems shift in response to altered climatic conditions. Yet the long-term survival of populations at direct risk from climate change may also be undermined by local factors such as infectious disease or anthropogenic harvest, which leave smaller and more isolated populations increasingly vulnerable to the rapid pace of global change. We review current and future threats to an exemplar tropical waterfowl species, magpie geese Anseranas semipalmata, and focus on the potential synergies between infectious diseases, harvest, and climate change. We outline viral, bacterial, and fungal pathogens likely to cause disease in geese, and give mention to parasites. Further, we elaborate on a previously developed, spatially explicit population viability model to simulate demographic responses to hunting and novel or enhanced disease outbreaks due to climate change. With no harvest, the simulated disease epizootics only threatened metapopulation viability when both mortality rate was high and outbreaks were regular (a threshold response). However, when contemporary site-specific harvest is included as an additive impact, the response to disease severity and probability was linear. We recommend field research to test these hypotheses linking drivers of waterfowl population decline to disease–climate change interactions.
Keywords: Anseranas semipalmata; avian disease; global warming; population viability analysis; tropical Australia
Description: Journal compilation © 2009 Association for Tropical Biology and Conservation Inc.
RMID: 0020091023
DOI: 10.1111/j.1744-7429.2009.00508.x
Grant ID: http://purl.org/au-research/grants/arc/DP0558350
http://purl.org/au-research/grants/arc/DP0558350
Appears in Collections:Earth and Environmental Sciences publications
Environment Institute Leaders publications

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