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Seabird assemblages observed during the BROKE-West survey of the Antarctic coastline (30°E-80°E), January - March 2006
Citation
Woehler, EJ and Raymond, B and Boyle, A and Stafford, A, Seabird assemblages observed during the BROKE-West survey of the Antarctic coastline (30°E-80°E), January - March 2006, Deep-Sea Research. Part 2: Topical Studies in Oceanography, 57, (9-10) pp. 982-991. ISSN 0967-0645 (2010) [Refereed Article]
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DOI: doi:10.1016/j.dsr2.2008.12.041
Abstract
Seabird surveys in January � March 2006 of a poorly known area of the Southern Ocean adjacent to the
East Antarctic coast identified six seabird communities, several of which were comparable to seabird
communities identified both in adjacent sectors of the Antarctic, and elsewhere in the Southern Ocean.
These results support previous proposals that the Southern Ocean seabird community is characterised
by an ice-associated assemblage and an open-water assemblage, with the species composition of the
assemblages reflecting local (Antarctic-resident) breeding species, and the migratory routes and feeding
areas of distant-breeding taxa, respectively. Physical environmental covariates such as sea-ice cover,
distance to continental shelf and time of year influenced the distribution and abundance of seabirds
observed, but the roles of these factors in the observed spatial and temporal patterns in seabird
assemblages was confounded by the duration of the survey. Occurrence of a number of seabird taxa
exhibited significant correlations with krill densities at one or two spatial scales, but only three taxa
(Arctic tern, snow petrel and dark shearwaters, i.e. sooty and short-tailed shearwaters) showed
significant correlations at a range of spatial scales. Dark shearwater abundances showed correlations
with krill densities across the range of spatial scales examined.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | Seabirds; Biological surveys; Biological oceanography; Antarctica; Southern Ocean; Communities; Marine ecology |
| Research Division: | Biological Sciences |
| Research Group: | Ecology |
| Research Field: | Behavioural ecology |
| Objective Division: | Environmental Management |
| Objective Group: | Management of Antarctic and Southern Ocean environments |
| Objective Field: | Biodiversity in Antarctic and Southern Ocean environments |
| UTAS Author: | Woehler, EJ (Dr Eric Woehler) |
| UTAS Author: | Raymond, B (Dr Ben Raymond) |
| ID Code: | 63740 |
| Year Published: | 2010 |
| Web of Science® Times Cited: | 9 |
| Deposited By: | Zoology |
| Deposited On: | 2010-05-26 |
| Last Modified: | 2011-05-16 |
| Downloads: | 1 View Download Statistics |
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