[Location: Location_Category='OCEAN', Location_Type='SOUTHERN OCEAN', Detailed_Location='Heard Island']
Breeding populations of Southern Giant Petrels at Heard Island, the McDonald Islands and within the AATEntry ID: SOE_seabird_candidate_sp_SGP
Abstract: This indicator is no longer maintained, and is considered OBSOLETE.
The number of breeding pairs of Southern Giant Petrels at Heard Island, the McDonald Islands, and in colonies near Casey, Davis and Mawson stations.
TYPE OF INDICATOR
There are three types of indicators used in this report:
1. Describes the CONDITION of important elements of a system;
2. Show the extent ... of the major PRESSURES exerted on a system;
3. Determine RESPONSES to either condition or changes in the condition of a system.
This indicator is one of: CONDITION
RATIONALE FOR INDICATOR SELECTION
The breeding population of Southern Giant Petrels is related to resource availability (nesting space and food), behavioural mechanisms (immigration/emigration and breeding effort/success) in addition to climate change and human impacts (including fisheries and human disturbance). Monitoring breeding populations and interpretation of the data provides information on changes in the Antarctic and Subantarctic ecosystems.
DESIGN AND STRATEGY FOR INDICATOR MONITORING PROGRAM
Spatial scale: Colonies near Australian Stations -
Frazier Islands, Casey (lat 66 degrees 16' 54.5" S, long 110 degrees 31' 39.4" E)
Hawker Island, Davis (lat 68 degrees 34' 35.8" S, long 77 degrees 58' 02.6" E)
Giganteus Island, Mawson (lat 67 degrees 36' 09.7" S, long 62 degrees 52' 25.7" E)
Heard Island - (lat 53 degrees 06' 00.0" S, long 73 degrees 31' 59.9" E)
McDonald Islands - (lat 53 degrees 02' 26.2" S, long 72 degrees 36' 00.0" E)
Frequency: Breeding Southern Giant Petrels are easily disturbed. Colonies are visited every 3-5 years to minimise disturbance to breeding birds.
Measurement technique: All colonies are visited and breeding birds are counted from outside the colonies by two personnel performing replicate counts. All breeding individuals in a colony are counted. No birds are disturbed off their nests.
Considerations regarding disturbance associated with census visits are also incorporated into monitoring strategies. The lack of annual census data does not reduce the value of these long-term monitoring programmes.
All Southern Giant Petrel breeding populations in the AAT and at HIMI decreased following their discovery. Southern Giant Petrels breeding on Indian Ocean islands are highly sensitive to human disturbance. Access to breeding colonies is restricted, as are the types of activities permitted. Disturbance from researchers has been implicated in the observed decreases in these populations (Woehler et al. 2001, Woehler et al. in press). Analyses of the long term AAT data suggest that the breeding populations at Hawker Is and at the Frazier Is have recovered following the restrictions on access and activities permitted on breeding islands.
LINKS TO OTHER INDICATORS
Data Set Citation
Dataset Originator/Creator: Woehler, E.J.
Dataset Title: Breeding population of the Southern Giant Petrel at Heard Island, the McDonald Islands and within the AAT
Dataset Series Name: CAASM Metadata
Dataset Release Date: 2001-05-16
Dataset Publisher: Australian Antarctic Data CentreOnline Resource: https://data.aad.gov.au/aadc/metadata/metadata_redirect.cfm?md=/AMD...
Start Date: 1955-01-01Stop Date: 2002-12-31
Temporal Resolution: 1 year
BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > BIRDS > ALBATROSSES/PETRELS AND ALLIES
BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > SPECIES LIFE HISTORY
BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > RANGE CHANGES
BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > ENDANGERED SPECIES
BIOSPHERE > ECOLOGICAL DYNAMICS > COMMUNITY DYNAMICS > COMMUNITY STRUCTURE
Quality This indicator is now OBSOLETE. These data are no longer archived in this location, and are therefore not up-to-date.
Censuses of breeding adults are performed and long term trends are determined. Integration with other long term datasets is currently underway through international collaborations, allowing comparison among sites at regional and ecosystem scales. Some analyses and their interpretations have been published (see bibliography), and current analyses will examine population data as they are compiled.
Access Constraints These data are publicly available for download from the provided URL.
Use Constraints This data set conforms to the PICCCBY Attribution License
Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=SOE_seab... when using these data.
Data Set Progress
Distribution Media: HTTP
Distribution Size: 1 kb
Distribution Format: csv
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Role: DATA CENTER CONTACT
Email: eric.woehler at gmail.com
Province or State: Tasmania
Postal Code: 7001
Woehler, E.J., Martin, M.R. and Johnstone, G.W. (1990), The status of Southern Giant-Petrels, Macronectes giganteus, at the Frazier Islands, Wilkes Land, East Antarctica., Corella, 14, 101-106
Woehler, E.J. (1990), The distribution of seabird biomass in the Australian Antarctic Territory: Implications for conservation., Environmental Conservation, 17, 256-261
Woehler, E.J. (1991), Status and conservation of the seabirds of Heard Island and the McDonald Islands., In: Seabird status and conservation: a supplement., Croxall, J.P. (ed.), ICBP Technical Publication 11, 263-277.
Woehler, E.J. and Johnstone, G.W. (1991), Status and conservation of the seabirds of the Australian Antarctic Territory., Seabird status and conservation: a supplement., Croxall, J.P. (ed.), ICBP Technical Publication 11, 279-308.
Woehler, E.J. (1993), Antarctic seabirds: their status and conservation in the AAT., RAOU Conservation Statement, 9, 8
Woehler, E.J., Cooper, J., Croxall, J.P., Fraser, W.R., Kooyman, G.L., Miller, G.D., Nel, D.C., Patterson, D.L., Peter, H.U., Ribic, C.A., Salwicka, K. Trivelpiece, W.Z. and Weimerskirch, H. (2001), A statistical assessment of the status and trends of Antarctic and Subantarctic seabirds., SCAR/NSF/CCAMLR, 43
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2001-05-16
Last DIF Revision Date: 2013-06-19