Ducks and Mallards of Macquarie Island
(Abstract from 'The ducks of Macquarie Island')\n\nEarly reference to waterfowl on Macquarie Island and observations made by ANARE expeditioners between 1949 and 1985 are reviewed and discussed. Apart from a unique (perhaps erroneous) record of a mute swan Cygnus olor, information is restr...
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Online Access: | https://researchdata.edu.au/ducks-mallards-macquarie-island/1434030 http://data.gov.au/dataset/66f11d7d-5383-4960-a91b-df94bab43a12 |
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ftands:oai:ands.org.au::1434030 2023-09-05T13:18:15+02:00 Ducks and Mallards of Macquarie Island Australian Antarctic Division (isOwnedBy) Spatial: 158.0,-55.0 159.0,-55.0 159.0,-54.0 158.0,-54.0 158.0,-55.0 https://researchdata.edu.au/ducks-mallards-macquarie-island/1434030 http://data.gov.au/dataset/66f11d7d-5383-4960-a91b-df94bab43a12 unknown data.gov.au https://researchdata.edu.au/ducks-mallards-macquarie-island/1434030 http://data.gov.au/dataset/66f11d7d-5383-4960-a91b-df94bab43a12 aad-aadc-00031 Australian Antarctic Division AMD AMD-AU CEOS DUCK EARTH SCIENCE - BIOLOGICAL CLASSIFICATION - ANIMALS-VERTEBRATES - BIRDS FIELD INVESTIGATION FIELD SURVEYS GEOGRAPHIC REGION - POLAR MACQUARIE ISLAND MALLARD MONTH OCEAN - SOUTHERN OCEAN OCEAN - SOUTHERN OCEAN - MACQUARIE ISLAND PRESENCE-ABSENCE WATERFOWL YEARS dataset ftands 2023-08-14T22:31:21Z (Abstract from 'The ducks of Macquarie Island')\n\nEarly reference to waterfowl on Macquarie Island and observations made by ANARE expeditioners between 1949 and 1985 are reviewed and discussed. Apart from a unique (perhaps erroneous) record of a mute swan Cygnus olor, information is restricted to the Pacific black duck Anas superciliosa, the grey teal A. gibberifrons and the alien mallard A. platyrhynchos and its hybrids.\n\nBlack duck and grey teal were seen by early visitors to the Island, but despite the infrequent potential for escapes of domestic ducks, mallards were not recorded until 1949. Occasional teal and mallards were seen in the years following the establishment of the permanent scientific station (1948) but mallards (and hybrids) have become more numerous in recent years. Though grey teal may disperse to Macquarie Island in times of drought on the Australian mainland, the source of mallards may be New Zealand or the less distant Campbell and Auckland Islands.\n\nThe few available records of breeding (eggs, ducklings and nests) for black duck suggest that laying begins in September and extends at least into January. Zooplankton is most abundant in spring and summer, but ducks may obtain high protein foods from the littoral and sublittoral areas and may also take seeds of terrestrial plants.\n\nAvailable information does not allow separation of habitats used by black duck or mallards. However, most observations are around coastal areas. There is some indication that records have increased along the south-western and eastern sides of the Island, but generally there are few observations of either species on the higher, central plateau.\n\nThe intrusion of mallards onto the Island and the resultant hybridisation with black duck poses a threat for the future integrity of the latter native species.\n\nThis dataset contains a review of the data available for Pacific black duck (Anas superciliosa), mallard (Anas platyrhynchos) and grey teal (Anas gibberifrons) and hybrids on Macquarie Island, collected ... Dataset Auckland Islands Macquarie Island Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Southern Ocean Pacific New Zealand Olor ENVELOPE(88.531,88.531,69.600,69.600) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
AMD AMD-AU CEOS DUCK EARTH SCIENCE - BIOLOGICAL CLASSIFICATION - ANIMALS-VERTEBRATES - BIRDS FIELD INVESTIGATION FIELD SURVEYS GEOGRAPHIC REGION - POLAR MACQUARIE ISLAND MALLARD MONTH OCEAN - SOUTHERN OCEAN OCEAN - SOUTHERN OCEAN - MACQUARIE ISLAND PRESENCE-ABSENCE WATERFOWL YEARS |
spellingShingle |
AMD AMD-AU CEOS DUCK EARTH SCIENCE - BIOLOGICAL CLASSIFICATION - ANIMALS-VERTEBRATES - BIRDS FIELD INVESTIGATION FIELD SURVEYS GEOGRAPHIC REGION - POLAR MACQUARIE ISLAND MALLARD MONTH OCEAN - SOUTHERN OCEAN OCEAN - SOUTHERN OCEAN - MACQUARIE ISLAND PRESENCE-ABSENCE WATERFOWL YEARS Ducks and Mallards of Macquarie Island |
topic_facet |
AMD AMD-AU CEOS DUCK EARTH SCIENCE - BIOLOGICAL CLASSIFICATION - ANIMALS-VERTEBRATES - BIRDS FIELD INVESTIGATION FIELD SURVEYS GEOGRAPHIC REGION - POLAR MACQUARIE ISLAND MALLARD MONTH OCEAN - SOUTHERN OCEAN OCEAN - SOUTHERN OCEAN - MACQUARIE ISLAND PRESENCE-ABSENCE WATERFOWL YEARS |
description |
(Abstract from 'The ducks of Macquarie Island')\n\nEarly reference to waterfowl on Macquarie Island and observations made by ANARE expeditioners between 1949 and 1985 are reviewed and discussed. Apart from a unique (perhaps erroneous) record of a mute swan Cygnus olor, information is restricted to the Pacific black duck Anas superciliosa, the grey teal A. gibberifrons and the alien mallard A. platyrhynchos and its hybrids.\n\nBlack duck and grey teal were seen by early visitors to the Island, but despite the infrequent potential for escapes of domestic ducks, mallards were not recorded until 1949. Occasional teal and mallards were seen in the years following the establishment of the permanent scientific station (1948) but mallards (and hybrids) have become more numerous in recent years. Though grey teal may disperse to Macquarie Island in times of drought on the Australian mainland, the source of mallards may be New Zealand or the less distant Campbell and Auckland Islands.\n\nThe few available records of breeding (eggs, ducklings and nests) for black duck suggest that laying begins in September and extends at least into January. Zooplankton is most abundant in spring and summer, but ducks may obtain high protein foods from the littoral and sublittoral areas and may also take seeds of terrestrial plants.\n\nAvailable information does not allow separation of habitats used by black duck or mallards. However, most observations are around coastal areas. There is some indication that records have increased along the south-western and eastern sides of the Island, but generally there are few observations of either species on the higher, central plateau.\n\nThe intrusion of mallards onto the Island and the resultant hybridisation with black duck poses a threat for the future integrity of the latter native species.\n\nThis dataset contains a review of the data available for Pacific black duck (Anas superciliosa), mallard (Anas platyrhynchos) and grey teal (Anas gibberifrons) and hybrids on Macquarie Island, collected ... |
author2 |
Australian Antarctic Division (isOwnedBy) |
format |
Dataset |
title |
Ducks and Mallards of Macquarie Island |
title_short |
Ducks and Mallards of Macquarie Island |
title_full |
Ducks and Mallards of Macquarie Island |
title_fullStr |
Ducks and Mallards of Macquarie Island |
title_full_unstemmed |
Ducks and Mallards of Macquarie Island |
title_sort |
ducks and mallards of macquarie island |
publisher |
data.gov.au |
url |
https://researchdata.edu.au/ducks-mallards-macquarie-island/1434030 http://data.gov.au/dataset/66f11d7d-5383-4960-a91b-df94bab43a12 |
op_coverage |
Spatial: 158.0,-55.0 159.0,-55.0 159.0,-54.0 158.0,-54.0 158.0,-55.0 |
long_lat |
ENVELOPE(88.531,88.531,69.600,69.600) |
geographic |
Southern Ocean Pacific New Zealand Olor |
geographic_facet |
Southern Ocean Pacific New Zealand Olor |
genre |
Auckland Islands Macquarie Island Southern Ocean |
genre_facet |
Auckland Islands Macquarie Island Southern Ocean |
op_source |
Australian Antarctic Division |
op_relation |
https://researchdata.edu.au/ducks-mallards-macquarie-island/1434030 http://data.gov.au/dataset/66f11d7d-5383-4960-a91b-df94bab43a12 aad-aadc-00031 |
_version_ |
1776199252691648512 |