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

Created 13/03/2025

Updated 13/03/2025

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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

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Title Population trends of black-browed albatrosses at Heard Island, 1947 - 2001.
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/d121419b-3fbe-4135-9bd9-6d7e6373fcf2
Contact Point
CSIRO Oceans & Atmosphere
metadata@aad.gov.au
Reference Period 01/12/1947 - 31/01/2001
Geospatial Coverage {"type": "Polygon", "coordinates": [[[73.23761, -53.20439], [73.84735, -53.20439], [73.84735, -52.96022], [73.23761, -52.96022], [73.23761, -53.20439]]]}
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