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Climate variability and breeding parameters of a transhemispheric migratory seabird over seven decades


Price, CA and Hartmann, K and Emery, TJ and Woehler, EJ and McMahon, CR and Hindell, MA, Climate variability and breeding parameters of a transhemispheric migratory seabird over seven decades, Marine Ecology Progress Series, 642 pp. 191-205. ISSN 0171-8630 (2020) [Refereed Article]

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DOI: doi:10.3354/meps13328


Climate variability affects physical oceanographic systems and environmental conditions at multiple spatial and temporal scales. These changes can influence biological and eco-logical processes, from primary productivity to higher trophic levels. Short-tailed shearwaters Ardenna tenuirostris are transhemispheric migratory procellariiform seabirds that forage on secondary consumers such as fish (myctophids) and zooplankton (euphausiids). In this study, we investigated the breeding parameters of the short-tailed shearwater from a colony of 100 to 200 breeding pairs at Fisher Island, Tasmania, Australia, for the period 1950 to 2012, with the aim to quantify the relationship between breeding parameters with large-scale climate indices in the Northern (i.e. Northern Pacific Index and Pacific Decadal Oscillation) and Southern Hemispheres (i.e. El Nino-Southern Oscillation and Southern Annular Mode). Through the use of generalised linear models, we found that breeding participation among short-tailed shearwaters was affected by climate variability with a 12-mo temporal lag. Furthermore, breeding success decreased in years of increased rainfall at the colony. These findings demonstrate that both large-scale climate indices and local environmental conditions could explain some of the variability among breeding parameters of the short-tailed shearwater.

Item Details

Item Type:Refereed Article
Keywords:seabirds, ecology, short-tailed shearwater, Ardenna tenuirostris, trophic levels, lag, longitudinal study
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Behavioural ecology
Objective Division:Environmental Management
Objective Group:Coastal and estuarine systems and management
Objective Field:Assessment and management of coastal and estuarine ecosystems
UTAS Author:Price, CA (Miss Cassandra Price)
UTAS Author:Hartmann, K (Dr Klaas Hartmann)
UTAS Author:Emery, TJ (Mr Timothy Emery)
UTAS Author:Woehler, EJ (Dr Eric Woehler)
UTAS Author:McMahon, CR (Dr Clive McMahon)
UTAS Author:Hindell, MA (Professor Mark Hindell)
ID Code:142913
Year Published:2020
Web of Science® Times Cited:4
Deposited By:Ecology and Biodiversity
Deposited On:2021-02-16
Last Modified:2021-03-01

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