Data

Population trends of black-browed albatrosses at Heard Island, 1947 - 2001.

data.gov.au
Australian Ocean Data Network (Owned by)
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://data.gov.au/data/dataset/89e6a4b4-123d-435e-8c45-b20f3db40d8d&rft.title=Population trends of black-browed albatrosses at Heard Island, 1947 - 2001.&rft.identifier=population-trends-of-black-browed-albatrosses-at-heard-island-1947-2001&rft.publisher=data.gov.au&rft.description=PROJECT HOME PAGE - Public information for ASAC project 1219VIEW RELATED INFORMATION > PUBLICATIONS - Download page for Australian Antarctic Data CentreVIEW RELATED INFORMATION - Citation reference for this metadata record and datasetCreative Commons by Attribution logo - The breeding population of the black-browed albatross Thalassarche melanophrys has increased at Heard Island since the first census data were obtained in 1947/1948. Four breeding localities are known, and all populations have increased in the period 1947/1948-2000/2001. The breeding population is estimated to have been approximately 200 pairs in 1947/1948. Based on 2000/2001 census data, the population has increased to a minimum of approximately 600 pairs over the 53 years. Two mechanisms, that of increased prey availability through scavenging discards from trawlers operating within their foraging range, and climatic amelioration, are proposed as hypotheses for this increase.\nThe fields in this dataset are:\nSeason\nDates\nLocation\nNumbers\nNests\nAdults\nChicks&rft.creator=Australian Ocean Data Network&rft.date=2025&rft.coverage=73.23761,-53.20439 73.84735,-53.20439 73.84735,-52.96022 73.23761,-52.96022 73.23761,-53.20439&rft.coverage=73.23761,-53.20439 73.84735,-53.20439 73.84735,-52.96022 73.23761,-52.96022 73.23761,-53.20439&rft_rights=notspecified&rft_subject=ADULTS&rft_subject=AMD&rft_subject=AMD/AU&rft_subject=BLACK-BROWED ALBATROSS&rft_subject=CEOS&rft_subject=CHICKS&rft_subject=CONTINENT > AUSTRALIA/NEW ZEALAND > AUSTRALIA > Heard Island&rft_subject=DATES&rft_subject=BIRDS&rft_subject=EARTH SCIENCE&rft_subject=BIOLOGICAL CLASSIFICATION&rft_subject=ANIMALS/VERTEBRATES&rft_subject=EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > BIRDS > ALBATROSSES/PETRELS AND AL&rft_subject=COMMUNITY STRUCTURE&rft_subject=BIOSPHERE&rft_subject=ECOLOGICAL DYNAMICS&rft_subject=COMMUNITY DYNAMICS&rft_subject=EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > POPULATION DYNAM&rft_subject=EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > SPECIES LIFE HIS&rft_subject=FIELD SURVEYS&rft_subject=GEOGRAPHIC REGION > POLAR&rft_subject=HEARD ISLAND&rft_subject=LOCATION&rft_subject=NESTS&rft_subject=NUMBERS&rft_subject=OCEAN > SOUTHERN OCEAN > Heard Island&rft_subject=POPULATION INCREASE&rft_subject=POPULATION TRENDS&rft_subject=SEASON&rft_subject=SOUTHERN OCEAN&rft_subject=VISUAL OBSERVATIONS&rft.type=dataset&rft.language=English Access the data
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Brief description

The breeding population of the black-browed albatross Thalassarche melanophrys has increased at Heard Island since the first census data were obtained in 1947/1948. Four breeding localities are known, and all populations have increased in the period 1947/1948-2000/2001. The breeding population is estimated to have been approximately 200 pairs in 1947/1948. Based on 2000/2001 census data, the population has increased to a minimum of approximately 600 pairs over the 53 years. Two mechanisms, that of increased prey availability through scavenging discards from trawlers operating within their foraging range, and climatic amelioration, are proposed as hypotheses for this increase.
The fields in this dataset are:
Season
Dates
Location
Numbers
Nests
Adults
Chicks

Full description

PROJECT HOME PAGE - Public information for ASAC project 1219
VIEW RELATED INFORMATION > PUBLICATIONS - Download page for Australian Antarctic Data Centre
VIEW RELATED INFORMATION - Citation reference for this metadata record and dataset
Creative Commons by Attribution logo -

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73.23761,-53.20439 73.84735,-53.20439 73.84735,-52.96022 73.23761,-52.96022 73.23761,-53.20439

73.54248,-53.082305

73.23761,-53.20439 73.84735,-53.20439 73.84735,-52.96022 73.23761,-52.96022 73.23761,-53.20439

73.54248,-53.082305

Subjects
ADULTS | AMD | AMD/AU | ANIMALS/VERTEBRATES | BIOLOGICAL CLASSIFICATION | BIOSPHERE | BIRDS | BLACK-BROWED ALBATROSS | CEOS | CHICKS | COMMUNITY DYNAMICS | COMMUNITY STRUCTURE | CONTINENT > AUSTRALIA/NEW ZEALAND > AUSTRALIA > Heard Island | DATES | EARTH SCIENCE | EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > BIRDS > ALBATROSSES/PETRELS AND AL | EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > POPULATION DYNAM | EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > SPECIES LIFE HIS | ECOLOGICAL DYNAMICS | FIELD SURVEYS | GEOGRAPHIC REGION > POLAR | HEARD ISLAND | LOCATION | NESTS | NUMBERS | OCEAN > SOUTHERN OCEAN > Heard Island | POPULATION INCREASE | POPULATION TRENDS | SEASON | SOUTHERN OCEAN | VISUAL OBSERVATIONS |

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