Comparative woodland caribou population surveys in Slate Islands Provincial Park, Ontario
We evaluated three methods of estimating population size of woodland caribou (boreal ecotype) on the Slate Islands in northern Ontario. Located on the north shore of Lake Superior, the Slate Islands provide a protected and closed population with very limited predator influence that is ideal for a co...
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2012
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Online Access: | https://doi.org/10.7557/2.32.2.2270 https://doaj.org/article/63fe7d0e5689426cb06913c460d527f5 |
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ftdoajarticles:oai:doaj.org/article:63fe7d0e5689426cb06913c460d527f5 2023-05-15T15:53:27+02:00 Comparative woodland caribou population surveys in Slate Islands Provincial Park, Ontario Natasha L. Carr Arthur R. Rodgers Steven R. Kingston Peter N. Hettinga Laura M. Thompson Jennifer L. Renton Paul J. Wilson 2012-03-01T00:00:00Z https://doi.org/10.7557/2.32.2.2270 https://doaj.org/article/63fe7d0e5689426cb06913c460d527f5 EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/2270 https://doaj.org/toc/1890-6729 doi:10.7557/2.32.2.2270 1890-6729 https://doaj.org/article/63fe7d0e5689426cb06913c460d527f5 Rangifer, Vol 32, Iss 2 (2012) forest-dwelling woodland caribou population size genetic profiling forward looking infrared FLIR mark-recapture Animal culture SF1-1100 article 2012 ftdoajarticles https://doi.org/10.7557/2.32.2.2270 2022-12-31T05:33:12Z We evaluated three methods of estimating population size of woodland caribou (boreal ecotype) on the Slate Islands in northern Ontario. Located on the north shore of Lake Superior, the Slate Islands provide a protected and closed population with very limited predator influence that is ideal for a comparison of survey methods. Our objective was to determine the costs and benefits of three population estimation techniques: (1) forward looking infrared (FLIR) technology to count the number of caribou on regular-spaced transects flown by fixed-wing aircraft; (2) observers to count the number of caribou seen or heard while walking random transects in the spring; and, (3) mark-recapture sampling of caribou pellets using DNA analysis. FLIR and the genetics 3-window approach gave much tighter confidence intervals but similar population estimates were found from all three techniques based on their overlapping confidence intervals. There are various costs and benefits to each technique that are discussed further. Understanding the costs and benefits of different population estimation techniques is necessary to develop cost-effective programs for inventorying and monitoring this threatened species not only on the Slate Islands but for other populations as well. Article in Journal/Newspaper caribou Rangifer Directory of Open Access Journals: DOAJ Articles Rangifer 205 217 |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
forest-dwelling woodland caribou population size genetic profiling forward looking infrared FLIR mark-recapture Animal culture SF1-1100 |
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forest-dwelling woodland caribou population size genetic profiling forward looking infrared FLIR mark-recapture Animal culture SF1-1100 Natasha L. Carr Arthur R. Rodgers Steven R. Kingston Peter N. Hettinga Laura M. Thompson Jennifer L. Renton Paul J. Wilson Comparative woodland caribou population surveys in Slate Islands Provincial Park, Ontario |
topic_facet |
forest-dwelling woodland caribou population size genetic profiling forward looking infrared FLIR mark-recapture Animal culture SF1-1100 |
description |
We evaluated three methods of estimating population size of woodland caribou (boreal ecotype) on the Slate Islands in northern Ontario. Located on the north shore of Lake Superior, the Slate Islands provide a protected and closed population with very limited predator influence that is ideal for a comparison of survey methods. Our objective was to determine the costs and benefits of three population estimation techniques: (1) forward looking infrared (FLIR) technology to count the number of caribou on regular-spaced transects flown by fixed-wing aircraft; (2) observers to count the number of caribou seen or heard while walking random transects in the spring; and, (3) mark-recapture sampling of caribou pellets using DNA analysis. FLIR and the genetics 3-window approach gave much tighter confidence intervals but similar population estimates were found from all three techniques based on their overlapping confidence intervals. There are various costs and benefits to each technique that are discussed further. Understanding the costs and benefits of different population estimation techniques is necessary to develop cost-effective programs for inventorying and monitoring this threatened species not only on the Slate Islands but for other populations as well. |
format |
Article in Journal/Newspaper |
author |
Natasha L. Carr Arthur R. Rodgers Steven R. Kingston Peter N. Hettinga Laura M. Thompson Jennifer L. Renton Paul J. Wilson |
author_facet |
Natasha L. Carr Arthur R. Rodgers Steven R. Kingston Peter N. Hettinga Laura M. Thompson Jennifer L. Renton Paul J. Wilson |
author_sort |
Natasha L. Carr |
title |
Comparative woodland caribou population surveys in Slate Islands Provincial Park, Ontario |
title_short |
Comparative woodland caribou population surveys in Slate Islands Provincial Park, Ontario |
title_full |
Comparative woodland caribou population surveys in Slate Islands Provincial Park, Ontario |
title_fullStr |
Comparative woodland caribou population surveys in Slate Islands Provincial Park, Ontario |
title_full_unstemmed |
Comparative woodland caribou population surveys in Slate Islands Provincial Park, Ontario |
title_sort |
comparative woodland caribou population surveys in slate islands provincial park, ontario |
publisher |
Septentrio Academic Publishing |
publishDate |
2012 |
url |
https://doi.org/10.7557/2.32.2.2270 https://doaj.org/article/63fe7d0e5689426cb06913c460d527f5 |
genre |
caribou Rangifer |
genre_facet |
caribou Rangifer |
op_source |
Rangifer, Vol 32, Iss 2 (2012) |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/2270 https://doaj.org/toc/1890-6729 doi:10.7557/2.32.2.2270 1890-6729 https://doaj.org/article/63fe7d0e5689426cb06913c460d527f5 |
op_doi |
https://doi.org/10.7557/2.32.2.2270 |
container_title |
Rangifer |
container_start_page |
205 |
op_container_end_page |
217 |
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1766388568557617152 |