From Australian Oceans Data Network
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Population trends of black-browed albatrosses at Heard Island, 1947 - 2001.

Created 17/11/2025

Updated 17/11/2025

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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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Field Value
Title Population trends of black-browed albatrosses at Heard Island, 1947 - 2001.
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/73cf7174-5f3e-4972-8b5a-3d873462b37b
Contact Point
Australian Ocean Data Network
metadata@aad.gov.au
Reference Period 01/12/1947 - 31/01/2001
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        73.23761,
        -53.20439
      ],
      [
        73.84735,
        -53.20439
      ],
      [
        73.84735,
        -52.96022
      ],
      [
        73.23761,
        -52.96022
      ],
      [
        73.23761,
        -53.20439
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Population trends of black-browed albatrosses at Heard Island, 1947 - 2001.". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/population-trends-of-black-browed-albatrosses-at-heard-island-1947-20011