Examination of Distribution and Abundance of Avian Predators in Relation to Prey Densities and to Oceanographic ConditionsEntry ID: ASAC_32
Abstract: Metadata record for data from ASAC Project 32
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From the abstract of the referenced paper:
Foods of the South Polar Skua in the eastern Larsemann Hills:
Regurgitated pellets and food remains were collected near nest sites, and from a club site, of south polar skuas Catharacta maccormicki in the eastern Larsemann Hills, Princess Elizabeth ... Land, East Antarctica, during the skuas' presence in the area. The samples indicated that the snow petrel Pagodroma nivea, the most abundant seabird species breeding locally, formed the major dietary component, comprising some 66% of food items identified in pellets and 80% of the food remains obtained. Adelie penguins Pygoscelis adeliae (which do not breed in the Larsemann Hills), other seabirds, fish and marine foods were rarely found as remains or in pellets. However, refuse (meat, fish and vegetable remains) taken as food by skuas from nearby stations occurred in pellets at all sites and formed about 12% of the food remains collected and identified. In this study, foods taken by skuas were related both to the local breeding distribution of snow petrels, and to the possession of a feeding territory. Birds without feeding territories took somewhat fewer snow petrels and included more refuse from local stations in their diet, as did those at the club site. Future monitoring of the influence of anthropogenic foods (and indelible waste materials) on the species' ecology is considered important.
Data Set Citation
Dataset Originator/Creator: Cullen, J.M. and Zipan, W.
Dataset Title: Examination of Distribution and Abundance of Avian Predators in Relation to Prey Densities and to Oceanographic Conditions
Dataset Series Name: CAASM Metadata
Dataset Publisher: Australian Antarctic Data CentreOnline Resource: https://data.aad.gov.au/aadc/metadata/metadata_redirect.cfm?md=/AMD...
Start Date: 1989-01-01Stop Date: 1990-02-28
Start Date: 1991-01-01Stop Date: 1991-01-31
BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > BIRDS
BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES
BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > SPECIES PREDATION
BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > SCAVENGING
BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > USE/FEEDING HABITATS
BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > CONSUMPTION RATES
BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > EXCRETION RATES
BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > FOOD-WEB DYNAMICS
Quality From the referenced paper: 'Foods of the South Polar Skua...':
17 nest sites were involved in this study, but only 13 (numbers 2-14) were visited regularly, while skuas were present in the area, during the studies on breeding chronology and success. Two sites (16 and 17) were visited only once during the main study period (but were revisited in January 1991). Pairs at sites 1 and 15 disappeared after February 1989 (following the loss of eggs or young); site 1 was not reoccupied in the next season and only one adult was seen, briefly, early in 1989-1990 at site 15. Site 4 was first occupied in November 1989. Nest sites 5-9, 11 and 14 were each within an obviously defended feeding territory, whereas pairs at other sites apparently only defended the nesting area itself.
Access Constraints A pdf copy of the referenced paper is available for download from the provided URL to AAD staff only.
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=ASAC_32 when using these data.
Data Set Progress
Distribution Media: HTTP
Distribution Size: 2,351 kb
Distribution Format: pdf
Role: TECHNICAL CONTACT
Role: TECHNICAL CONTACT
Second Institute of Oceanography, PO Box 507 State Oceanic Administration,
Province or State: Zhejiang
Postal Code: 310012
Role: DIF AUTHOR
Phone: +61 3 6232 3244
Fax: +61 3 6232 3351
Email: dave.connell at aad.gov.au
Australian Antarctic Division 203 Channel Highway
Province or State: Tasmania
Postal Code: 7050
Wang Z., Norman F.I. (1993), Foods of the south polar skua Catharacta maccormicki in the eastern Larsemann Hills, Princess Elizabeth Land, East Antarctica., Polar Biology, 13, 255-262
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2000-07-17
Last DIF Revision Date: 2016-10-18