Science Keywords>BIOLOGICAL CLASSIFICATION
Seabird assemblages observed during the BROKE-West survey of the Antarctic coastline (30-80 E), January-March 2006Entry ID: BROKE-West_Seabirds
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.
This work was conducted on the BROKE-West voyage of the Aurora Australis.
(Click for Interactive Map)
This data set description is a member of a collection. The collection is described in
Start Date: 2000-12-30
Latitude Resolution: 250m (1/450 degrees)
Longitude Resolution: 250m (1/450 degrees)
Horizontal Resolution Range: 250 meters - < 500 meters
Temporal Resolution: Daily
Quality The dataset has no problems. However, we did experience low biomass at some stations, making some productivity measurements difficult.
Access Constraints These data are not yet publicly available.
Use Constraints This data set conforms to the PICCCBY Attribution License
Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=SIPEX_II... when using these data.
Data Set Progress
Role: DIF AUTHOR
Email: gsfc-gcmduso at mail.nasa.gov
Role: TECHNICAL CONTACT
Email: reiner at uwyo.edu
Email: wreiners at lternet.edu
Chair, Botany Department University of Wyoming Department of Botany
Province or State: WY
Postal Code: 82071
Bormann, F. H.; G. E. Likens. 1979. "Pattern and Process in a Forested
Ecosystem". Springer-Verlag New York Inc., 253 pp.
Likens, G. E.; F. H. Bormann; R. S. Pierce; J. S. Eaton; N. M.
Johnson. 1977. "Biogeochemistry of a Forested Ecosystem".
Springer-Verlag New York Inc., 146 pp.
Likens, G. E.; F. H. Bormann; R. S. Pierce; W. A. Reiners. 1978. "Recovery
of a deforested ecosystem". Science, Vol. 199 (4328), pp. 492-496.
Reiners, W. A.; G. E. Likens; F. H. Bormann. 1972. "Vegetation recovery and
the nutrient budget of a clear-cut watershed at Hubbard Brook Experimental
Forest". Bull. Ecol. Soc. Amer., Vol. 53 (2), pp. 37.
Reiners, W. A. 1991. "Twenty years of ecosystem development on a clear-cut
watershed at Hubbard Brook Experimental Forest". Bull. Ecol. Soc.
Amer., Vol. 72 (2), pp. 228.
Reiners, W. A. 1992. "Twenty years of ecosystem reorganization following
experimental deforestation and regrowth suppression". Ecol. Monogr.,
Vol. 62 (4), pp. 503-523.
See also: http://www.hubbardbrook.org/research/pubs/hbrbib.htm
Creation and Review Dates
DIF Creation Date: 2001-08-24
Last DIF Revision Date: 2007-10-04
Future DIF Review Date: 2005-02-15