Ducks and Mallards of Macquarie Island
Early 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 t...
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Online Access: | https://researchdata.ands.org.au/ducks-mallards-macquarie-island/13949 http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AADC-00031 |
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ftands:oai:ands.org.au::13949 2023-05-15T15:33:43+02:00 Ducks and Mallards of Macquarie Island Knowles Kerry (isOwnedBy) Spatial: -180.0,-50.0 -180.0,-85.0 0.0,-85.0 0.0,-50.0 -180.0,-50.0 -180.0,-50.0 Spatial: 0.0,-50.0 0.0,-85.0 179.0,-85.0 179.0,-50.0 0.0,-50.0 0.0,-50.0 https://researchdata.ands.org.au/ducks-mallards-macquarie-island/13949 http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AADC-00031 unknown Polar Information Commons https://researchdata.ands.org.au/ducks-mallards-macquarie-island/13949 http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AADC-00031 This work by Knowles Kerry is licensed under a Creative Commons Attribution 3.0 Unsupported License . Knowles Kerry expects that users will follow the Polar Information Commons Ethics and Norms of Data Sharing . https://df.arcs.org.au/ARCS/projects/PICCLOUD/data/EARTH%20SCIENCE/BIOLOGICAL%20CLASSIFICATION/ANIMALS_VERTEBRATES/jbQadpzpLBvrOYhoqCfW/picbadge.html CC-BY http://piccloud.arcs.org.au/oai/provider EARTH SCIENCE - BIOLOGICAL CLASSIFICATION - ANIMALS_VERTEBRATES EARTH SCIENCE - BIOSPHERE - ECOLOGICAL DYNAMICS - COMMUNITY DYNAMICS EARTH SCIENCE - BIOSPHERE - ECOLOGICAL DYNAMICS - SPECIES_POPULATION INTERACTIONS BIOTA dataset ftands 2020-01-05T18:43:58Z Early 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. Black 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. The 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. Available 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. The 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. This 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 from mid-1949 to January 1985. There is a period of relatively continuous and extensive data between February 1963 and January 1985. Discussion and references about habitat, breeding, feeding and hybrids is provided in the dataset (see the reference given below), as well as distribution maps. The fields in this dataset are: Year Month Presence/Absence Dataset Auckland Islands Macquarie Island Research Data Australia (Australian National Data Service - ANDS) New Zealand Olor ENVELOPE(88.531,88.531,69.600,69.600) Pacific |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
EARTH SCIENCE - BIOLOGICAL CLASSIFICATION - ANIMALS_VERTEBRATES EARTH SCIENCE - BIOSPHERE - ECOLOGICAL DYNAMICS - COMMUNITY DYNAMICS EARTH SCIENCE - BIOSPHERE - ECOLOGICAL DYNAMICS - SPECIES_POPULATION INTERACTIONS BIOTA |
spellingShingle |
EARTH SCIENCE - BIOLOGICAL CLASSIFICATION - ANIMALS_VERTEBRATES EARTH SCIENCE - BIOSPHERE - ECOLOGICAL DYNAMICS - COMMUNITY DYNAMICS EARTH SCIENCE - BIOSPHERE - ECOLOGICAL DYNAMICS - SPECIES_POPULATION INTERACTIONS BIOTA Ducks and Mallards of Macquarie Island |
topic_facet |
EARTH SCIENCE - BIOLOGICAL CLASSIFICATION - ANIMALS_VERTEBRATES EARTH SCIENCE - BIOSPHERE - ECOLOGICAL DYNAMICS - COMMUNITY DYNAMICS EARTH SCIENCE - BIOSPHERE - ECOLOGICAL DYNAMICS - SPECIES_POPULATION INTERACTIONS BIOTA |
description |
Early 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. Black 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. The 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. Available 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. The 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. This 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 from mid-1949 to January 1985. There is a period of relatively continuous and extensive data between February 1963 and January 1985. Discussion and references about habitat, breeding, feeding and hybrids is provided in the dataset (see the reference given below), as well as distribution maps. The fields in this dataset are: Year Month Presence/Absence |
author2 |
Knowles Kerry (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 |
Polar Information Commons |
url |
https://researchdata.ands.org.au/ducks-mallards-macquarie-island/13949 http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AADC-00031 |
op_coverage |
Spatial: -180.0,-50.0 -180.0,-85.0 0.0,-85.0 0.0,-50.0 -180.0,-50.0 -180.0,-50.0 Spatial: 0.0,-50.0 0.0,-85.0 179.0,-85.0 179.0,-50.0 0.0,-50.0 0.0,-50.0 |
long_lat |
ENVELOPE(88.531,88.531,69.600,69.600) |
geographic |
New Zealand Olor Pacific |
geographic_facet |
New Zealand Olor Pacific |
genre |
Auckland Islands Macquarie Island |
genre_facet |
Auckland Islands Macquarie Island |
op_source |
http://piccloud.arcs.org.au/oai/provider |
op_relation |
https://researchdata.ands.org.au/ducks-mallards-macquarie-island/13949 http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AADC-00031 |
op_rights |
This work by Knowles Kerry is licensed under a Creative Commons Attribution 3.0 Unsupported License . Knowles Kerry expects that users will follow the Polar Information Commons Ethics and Norms of Data Sharing . https://df.arcs.org.au/ARCS/projects/PICCLOUD/data/EARTH%20SCIENCE/BIOLOGICAL%20CLASSIFICATION/ANIMALS_VERTEBRATES/jbQadpzpLBvrOYhoqCfW/picbadge.html |
op_rightsnorm |
CC-BY |
_version_ |
1766364238267285504 |