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Preliminary survival and movement data for a declining population of flesh-footed shearwater Ardenna carneipes in Western Australia provides insights into marine threats
Citation
Lavers, JL and Lisovski, S and Bond, AL, Preliminary survival and movement data for a declining population of flesh-footed shearwater Ardenna carneipes in Western Australia provides insights into marine threats, Bird Conservation International, 29, (2) pp. 327-337. ISSN 0959-2709 (2018) [Refereed Article]
Copyright Statement
Copyright 2018 BirdLife International
DOI: doi:10.1017/S0959270918000084
Abstract
Seabirds face diverse threats on their breeding islands and while at sea. Human activities have been linked to the decline of seabird populations, yet over-wintering areas typically receive little or no protection. Adult survival rates, a crucial parameter for population persistence in long-lived species, tend to be spatially or temporally restricted for many seabird species, limiting our understanding of factors driving population trends at some sites. We used bio-loggers to study the migration of Western Australian Flesh-footed Shearwaters Ardenna carneipes carneipes and estimated adult survival over five years. Western Australia is home to around 35% of the world’s breeding Flesh-footed Shearwaters, a population which was up-listed to Vulnerable in 2015. During the austral winter, shearwaters migrated across the central Indian Ocean to their non-breeding grounds off western Sri Lanka. Low site fidelity on breeding islands, mortality of adult birds at sea (e.g. fisheries bycatch), and low annual breeding frequency likely contributed to the low estimated annual adult survival (2011–2015: ϕ = 0.634-0.835).
Item Details
Item Type: | Refereed Article |
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Keywords: | seabird movement, Western Australia, annual survival, apex predator, migration, tracking |
Research Division: | Environmental Sciences |
Research Group: | Environmental management |
Research Field: | Conservation and biodiversity |
Objective Division: | Environmental Management |
Objective Group: | Marine systems and management |
Objective Field: | Marine biodiversity |
UTAS Author: | Lavers, JL (Dr Jennifer Lavers) |
ID Code: | 128085 |
Year Published: | 2018 |
Web of Science® Times Cited: | 6 |
Deposited By: | Ecology and Biodiversity |
Deposited On: | 2018-09-02 |
Last Modified: | 2022-07-05 |
Downloads: | 0 |
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