Area - population relationships for Adelie Penguin colonies at Mawson.
Some of the data have been taken from ANARE Research Notes 71 (see reference) - unfortunately there were some errors in this publication, so some data have not been transferred to the dataset. The relationship between colony area and population density of Adelie Penguins Pygoscelis adeliae was exami...
Other Authors: | , |
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Format: | Dataset |
Language: | unknown |
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Australian Ocean Data Network
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Online Access: | https://researchdata.ands.org.au/area-population-relationships-colonies-mawson/686233 https://data.aad.gov.au/metadata/records/ASAC_1219_AAT_APen_M_Area http://data.aad.gov.au/aadc/portal/download_file.cfm?file_id=1517 https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=1219 http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_1219_AAT_APen_M_Area |
Summary: | Some of the data have been taken from ANARE Research Notes 71 (see reference) - unfortunately there were some errors in this publication, so some data have not been transferred to the dataset. The relationship between colony area and population density of Adelie Penguins Pygoscelis adeliae was examined to determine whether colony area, measured from aerial or satellite imagery, could be used to estimate population density, and hence detect changes in populations over time. Using maps drawn from vertical aerial photographs of Adelie Penguin colonies in the Mawson region, pair density ranged between 0.1 and 3.1 pairs/m2, with a mean of 0.63 - 0.3 pairs/m2. Colony area explained 96.4% of the variance in colony populations (range 90.4 - 99.6%) for 979 colonies at Mawson. Mean densities were not significantly different among the 19 islands in the region, but significant differences in mean pair density were observed among colonies in Mawson, Whitney Point (Casey, East Antarctica) and Cape Crozier (Ross Sea) populations. This work was completed as part of ASAC project 1219 (ASAC_1219). The fields in this dataset are: Island Latitude Longitude Date Colony area Breeding Pairs Breeding Pairs per square metre Area per nest Number of nests Number of adults |
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