ca60bfec-9070-4967-920e-0c42554ad649 eng utf8 dataset dataset NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom polardatacentre@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact 2020-01-23 ISO 19115 Geographic Information - Metadata ISO 19115:2003(E) European Petroleum Survey Group (EPSG) Geodetic Parameter Registry 2008-11-12 publication European Petroleum Survey Group EPSGadministrator@iogp.org https://www.epsg-registry.org/ EPSG Geodetic Parameter Dataset The EPSG Geodetic Parameter Dataset is a structured dataset of Coordinate Reference Systems and Coordinate Transformations, accessible through this online registry. information publisher urn:ogc:def:crs:EPSG::3031 6.18.3 Counts of South Georgia shag Leucocarbo [atriceps] georgianus nests at Signy Island, South Orkney Islands, from 1947-2020 2020-01-23 creation 2020-01-23 revision 2020-01-23 publication 2020-01-23 released 1.0 https://doi.org/10.5285/ca60bfec-9070-4967-920e-0c42554ad649 doi GB/NERC/BAS/PDC/01296 https://data.bas.ac.uk/ Please cite this item as: Dunn, M. (2020). Counts of South Georgia shag Leucocarbo [atriceps] georgianus nests at Signy Island, South Orkney Islands, from 1947-2020 (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/ca60bfec-9070-4967-920e-0c42554ad649 South Georgia shag Leucocarbo [atriceps] georgianus nest counts from two breeding colonies (North Point and Shagnasty Island) at Signy Island, South Orkney Islands from 1947-2020. Chick counts are also recorded at North Point. No credit. completed Dunn, Michael British Antarctic Survey Researcher author NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact asNeeded completed EARTH SCIENCE > Biosphere > Ecological Dynamics > Life History EARTH SCIENCE > Biosphere > Ecological Dynamics > Species Recruitment theme Global Change Master Directory (GCMD) Science Keywords 2026-01-27 publication 23 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Greenbelt MD United States of America https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Colony count Phalacrocoracidae Population Signy Island South Georgia Shag South Orkney theme Signy Island South Orkney Islands place Habitats and biotopes theme GEMET - INSPIRE themes, version 1.0 2021-01-06 revision otherRestrictions no limitations to public access otherRestrictions no limitations license Open Government Licence v3.0 otherRestrictions This data is governed by the NERC Data Policy: https://www.ukri.org/who-we-are/nerc/our-policies-and-standards/nerc-data-policy/ otherRestrictions This data is governed by the NERC data policy and supplied under Open Government Licence v.3 otherRestrictions None. url url crossReference doi doi crossReference textTable eng utf8 biota -45.62583 -45.61778 -60.73194 -60.67167 1947-09-02 2020-01-14 It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk. NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information distributor application/pdf text/plain text/csv bytes 608870 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=ca60bfec-9070-4967-920e-0c42554ad649 WWW:LINK-1.0-http--link Get Data Download data download bytes 608870 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=ca60bfec-9070-4967-920e-0c42554ad649 WWW:LINK-1.0-http--link Get Data Download data download bytes 608870 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=ca60bfec-9070-4967-920e-0c42554ad649 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: Observational data is collected as part of a long term population monitoring initiative carried out over multiple decades. The data is gathered following standard ground survey methods at the two South Georgia shag colony areas present on Signy Island: North Point and Shagnasty Island. South Georgia shag pair numbers and chick numbers are recorded at North Point, and pair numbers are recorded at Shagnasty Island. Data has been collected by a number of different observers, who are listed with the count data. A minimum of two experienced observers survey each colony area at least twice on the same day. Surveys are repeated until the two count totals are within 10%. The mean count value is then calculated and presented. To count pair numbers, nests at which an adult appeared to be incubating (occupied nests) are counted. Nests are observed either peripherally (from edge areas of each colony), or from a nearby vantage point (30-50 m away, using binoculars). At North Point, past counts varied where sometimes the number of adult birds were counted, and sometimes total number of nests. In earlier counts, the date of the count is not always known, and earlier counts were typically done earlier in the season than is standard now. Since 1997/98, all counts have been of nests. Since 1988/89, all nest counts were undertaken between 23rd November and 19th January. Chick counts are also undertaken at the North Point colony. Some earlier chick counts report the number of chicks that were ringed and is therefore a minimum number of chicks, as the original report does not state whether all chicks were ringed. Notes with the data indicate what was counted, where it was possible to ascertain this information from the original report. Chick count dates vary year-on-year, and some may be a count of eggs that have hatched and others the chicks that have survived almost to fledging. Since 1996/97, chick counts have taken place between 6th January and 6th February to count chick survival to fledging, which occurs January - February each year. No chick counts have been undertaken at the Shagnasty colony, due to difficulties in accessing the colony. This data has been collected by British Antarctic Survey (BAS) researchers as part of an on-going BAS long-term population monitoring programme to determine population size and breeding success trajectories. Data quality: Differences in the methods are specified under Comments in the data. asNeeded completed