Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/103352
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Movement and mortality of Australian pelicans (Pelecanus conspicillatus) banded at inland and coastal breeding sites in South Australia |
Author: | Johnston, G. Waterman, M. Manning, C. |
Citation: | Pacific Conservation Biology, 2015; 21(4):271-276 |
Publisher: | CSIRO Publishing |
Issue Date: | 2015 |
ISSN: | 1038-2097 2204-4604 |
Statement of Responsibility: | Gregory R. Johnston, Maxwell H. Waterman and Clare E. Manning |
Abstract: | Globally, pelican populations have decreased, with three species being of conservation concern. Australian pelicans (Pelecanus conspicillatus) are not regarded as endangered, but have declined across south-eastern Australia. Information on their movements and causes of mortality are required to interpret the importance of these regional declines to the species’ global population. We explored patterns of movement and causes of mortality by analysing recoveries from 14 615 Australian pelicans banded over 37 years between 1969 and 2006. Data from 243 leg band recoveries showed that Australian pelicans move distances of up to 3206 km, and travel across the species’ entire geographic range, within a year of fledging. We found little evidence for the popular notion that these birds move en masse from the coast to inland areas in response to flooding rains. Maximum recorded age of a banded Australian pelican was 15 years. The banding data suggest that the regional pelican declines could reflect long-distance movements rather than an overall population response. However, a concentration of band returns from south-eastern Australia where the declines have been recorded, and the high incidence of human-induced deaths (16.4%) suggest otherwise. Accurate assessment of population trends in long-lived, long-distance nomads such as Australian pelicans requires assessment at a continental scale. Our results emphasise the importance of knowledge about fundamental aspects of a species’ biology for accurate interpretation of regional population declines. |
Rights: | Journal compilation © CSIRO 2015 |
DOI: | 10.1071/PC14925 |
Published version: | http://dx.doi.org/10.1071/pc14925 |
Appears in Collections: | Aurora harvest 3 Earth and Environmental Sciences publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.