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Retrofitting historical data in population studies: southern giant petrels in the Australian Antarctic Territory

Citation

Wienecke, B and Leaper, R and Hay, I and Van den Hoff, J, Retrofitting historical data in population studies: southern giant petrels in the Australian Antarctic Territory, Endangered Species Research , 8, (3) pp. 157-164. ISSN 1863-5407 (2009) [Refereed Article]

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Copyright Statement

Copyright Inter-Research 2009

Official URL: http://www.int-res.com

DOI: doi:10.3354/esr00201

Abstract

The determination of the conservation status for a species at risk of extinction is based largely upon consistent change in the population size. In long-lived species, such as seabirds, longterm monitoring is required to establish the extent of the natural variability in a population and to detect true change. As studies spanning several generations within the same population are rare, researchers may turn to historically collected census information to expand the time frame of their studies. While in principle a valid approach, several limitations need to be considered to use historical information appropriately. Census information, collated from the 1950s to the present, of 3 populations of southern giant petrels Macronectus giganteus in the Australian Antarctic Territory (AAT) is used to highlight potential limitations inherent in historical data. We demonstrate the importance of census time and count units when investigating potential changes in populations. Published accounts indicate that the numbers of southern giant petrels in the AAT have decreased significantly since their discovery and that more recently some recovery has taken place. However, for 2 of the 3 populations we could not find evidence supporting a change

Item Details

Item Type:Refereed Article
Keywords:Historical data Population studies Southern giant petrels Australian Antarctic Territory
Research Division:Environmental Sciences
Research Group:Environmental Science and Management
Research Field:Conservation and Biodiversity
Objective Division:Environment
Objective Group:Air Quality
Objective Field:Antarctic and Sub-Antarctic Air Quality
Author:Leaper, R (Dr Rebecca Leaper)
ID Code:60780
Year Published:2009
Deposited By:TAFI - Marine Research Laboratory
Deposited On:2010-02-18
Last Modified:2010-04-22
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