Population estimates of emperor penguins, Mawson coast, Antarctica
Metadata record for data from ASAC Project 484
See the link below for public details on this project.
---- Public Summary from Project ----
Emperor penguins are the only birds that breed in the Antarctic winter. They feed mainly on fish and squid but also ingest krill. Changes in food availability due to oceanographic or climatic factors, or to the extent of sea ice (through the processes of global warming) will have a direct impact on the breeding success and population size of the penguins. By counting the number of males that incubate at mid-winter each year, we can monitor trends in their population size. Counts of fledglings in spring (November) tell us how successful the penguins bred.
The download file contains an excel spreadsheet which presents a summary of known Emperor Penguin colonies in the area of the Australian Antarctic Territory (AAT), and a file which details counts of male emperor penguins at the Taylor Glacier colony.
A description of the column headings used in the spreadsheet is below.
Colony: Colony name
lat, long: latitude and longitude of colony
discovered: date colony was discovered
current est pop (BP): Current estimated population size in breeding pairs - current as at date the colony was last seen
last seen: date the colony was last seen
counting method: method used to count the breeding pairs in the colony
comments: any applicable comments
reference: references relating to the colony
Taken from the 2009-2010 Progress Report:
Public summary of the season progress:
Population size of colonies fluctuates which is why long term monitoring studies are necessary to detect trends. At the emperor penguin colony at Taylor Glacier, monitored continuously since 1988, a slight downward trend is apparent but is not (yet?) statistically significant. The colony was visited three times: once in winter to obtain an estimate of the number of adults in the colony (roughly equivalent to the number of breeding pairs), and twice during the late chick rearing season to estimate breeding success. The count of adults in 2009 was the lowest on record. Reasons for this are still unknown.
Simple
Identification info
- Alternate title
- Population estimates of emperor penguins, Mawson coast, Antarctica
- Date (Publication)
- 2014-10-06
- Edition
- 1
- Citation identifier
-
Dataset DOI
- Title
- Information and documentation - Digital object identifier system
- Date (Publication)
- 2012-04-23
- Citation identifier
- ISO 26324:2012
- Citation identifier
- doi:10.4225/15/5433159B290CC
Originator
Publisher
Principal investigator
Principal investigator
Collaborator
Collaborator
- Name
- CAASM Metadata
- Status
- Completed
Custodian
- Topic category
-
- Biota
- Oceans
Extent
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 1988-06-21 2010-11-30
- Title
- The history of the discovery of emperor penguin colonies, 1902-2004.
- Date (Publication)
- 2010
- Citation identifier
- 46
- Citation identifier
- 10.1017/S0032247409990283
Author
- Name
- Polar Record
- Title
- Emperor penguin colonies in the Australian Antarctic Territory: how many are there?
- Date (Publication)
- 2009
- Citation identifier
- 45
Author
- Name
- Polar Record
- Page
- 304-312
- Title
- Population estimates of emperor penguins at Amanda Bay, Ingrid Christensen Coast, Antarctica.
- Date (Publication)
- 2009
- Citation identifier
- 45
Author
- Name
- Polar Record
- Page
- 7-14
- NASA/GCMD Earth Science Keywords
-
- EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > BIRDS
- EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL
- EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > PELAGIC
- EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > EVOLUTIONARY ADAPTATION
- EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > BIRDS > PENGUINS
- Keywords
-
- ANTARCTICA
- BREEDING SUCCESS
- EMPEROR PENGUIN
- FLUCTUATIONS IN FOOD SUPPLY
- GLOBAL CHANGE
- SEA-ICE
- TRENDS IN NUMBERS
- NASA/GCMD Earth Science Keywords
-
- VISUAL OBSERVATIONS
- NASA/GCMD Earth Science Keywords
-
- Aircraft
- HELICOPTER
- FIELD SURVEYS
- GROUND-BASED OBSERVATIONS
- SHIPS
- AERIAL PHOTOGRAPHS
- NASA/GCMD Earth Science Keywords
-
- AMD/AU
- CEOS
- AMD
- NASA/GCMD Earth Science Keywords
-
- CONTINENT > ANTARCTICA
- GEOGRAPHIC REGION > POLAR
Resource constraints
- Use limitation
- This metadata record is publicly available.
Resource constraints
- Access constraints
- licence
- Other constraints
- The excel spreadsheet of colony summaries and Taylor Glacier counts are publicly available for download from the provided URL.
Resource constraints
- File type
- Portable Network Graphic
- Title
- Attribution 4.0 International (CC BY 4.0)
- Website
-
https://creativecommons.org/licenses/by/4.0/legalcode
Legal code for Creative Commons by Attribution 4.0 International license
- Use constraints
- licence
- Other constraints
- This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_484 when using these data.
- Language
- English
- Character encoding
- UTF8
Distribution Information
Distributor
Distributor
Distributor
- Fees
- free
- Planned available datetime
- 2014-10-06T00:00:00
- Units of distribution
- kb
- Transfer size
- 29
- Distribution format
-
- Excel
- OnLine resource
-
GET DATA
Download point for the colony summaries
- OnLine resource
-
PROJECT HOME PAGE
Public information for ASAC project 484
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset
Resource lineage
- Statement
- Taken from the 2009-2010 Progress Report: Field work: The colony at Taylor Glacier was visited on 26 June, 28 Oct and 1 Dec. On all three occasions, all birds present in the colony were photographed. Visits to the colony lasted no more than 2 hours and personnel kept at the appropriate distance to avoid disturbance. This season, it was possible for the first time since 2005 to reach Taylor Glacier in early December. In five previous seasons, snow and fast ice conditions had made such a late visit impossible. Two visits during the chick rearing season allowed us to compare chick numbers in October with those present in early December and estimate the rate of loss at this stage of the breeding season. Two major changes will take place over the next years: first, we shall test the deployment of fixed cameras at Taylor Glacier for suitability of obtaining information we have so far not been able to collect (e.g. time of arrival). Second, other colonies will be included in the monitoring study (e.g. Auster, Amanda Bay).
- Hierarchy level
- Dataset
- Maintenance and update frequency
- As needed
- Maintenance note
- 2009-08-18 - record updated by Dave Connell after data were submitted by Barbara Wienecke. 2010-05-07 - record updated by Dave Connell after data were submitted by Barbara Wienecke. 2014-10-06 - record updated by Dave Connell after final data were submitted by Barbara Wienecke. 2016-10-28 - record updated by Dave Connell - basic updates.
Metadata
- Metadata identifier
- string/ASAC_484
- Language
- English
- Character encoding
- UTF8
Author
Sponsor
Owner
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 6e7fb302-d55b-401b-a833-e9448f75e38a
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2015-11-30T06:36:05
Identifier
- Description
- metadata.extraction_date
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 8.6
- Metadata linkage
-
http://data.aad.gov.au/metadata/records/ASAC_484
Point of truth for the metadata record
- Date info (Creation)
- 2000-07-31T00:00:00
- Date info (Last Update)
- 2017-04-26
Metadata standard
- Title
- ISO 19115-3
- Edition
- 2014
- Other citation details
- Version 1
- Title
- DIF to ISO 19115-1 Profile