Using temporary dye marks to estimate ungulate population abundance in southwest Yukon, Canada
We describe the protocols of two mark-resight abundance surveys, using temporary dye-marks, for the Aishihik woodland caribou (Rangifer tarandus caribou) and wood bison (Bison bison athabascae) populations (herds) in the southwest Yukon Territory, Canada. We also provide recommendations based on exp...
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Septentrio Academic Publishing
2012
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Online Access: | https://septentrio.uit.no/index.php/rangifer/article/view/2271 https://doi.org/10.7557/2.32.2.2271 |
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ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/2271 2023-05-15T15:44:48+02:00 Using temporary dye marks to estimate ungulate population abundance in southwest Yukon, Canada Hegel, Troy M. Russell, Kyle Jung, Thomas S. 2012-03-08 application/pdf https://septentrio.uit.no/index.php/rangifer/article/view/2271 https://doi.org/10.7557/2.32.2.2271 eng eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/2271/2112 https://septentrio.uit.no/index.php/rangifer/article/view/2271 doi:10.7557/2.32.2.2271 Copyright (c) 2015 Troy M. Hegel, Kyle Russell, Thomas S. Jung http://creativecommons.org/licenses/by/3.0/ CC-BY Rangifer; Vol 32 (2012): Special Issue No. 20; 219-226 1890-6729 caribou abundance dye-marks mark-resight Rangifer tarandus caribou Yukon Territory population estimate info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2012 ftunitroemsoe https://doi.org/10.7557/2.32.2.2271 2021-08-16T15:11:17Z We describe the protocols of two mark-resight abundance surveys, using temporary dye-marks, for the Aishihik woodland caribou (Rangifer tarandus caribou) and wood bison (Bison bison athabascae) populations (herds) in the southwest Yukon Territory, Canada. We also provide recommendations based on experiences from these surveys for biologists and managers considering this approach. The Aishihik woodland caribou herd was the focus of intensive management in the 1990s aimed at recovering the herd. Following recovery activities, a target size of 2000 animals was determined and the Champagne-Aishihik Traditional Territory Community-Based Wildlife Management Plan recommended an estimate of the herd’s size be completed before the year 2013. We used an aerial mark-resight approach to estimate the herd’s size in March 2009. Caribou (n = 59) were marked from a helicopter with temporary dye, delivered via a CO2-powered rifle. Two independent resighting sessions were subsequently carried out via helicopter. The herd was estimated at 2044 animals (90% CI: 1768 – 2420) with an overall resighting rate of 0.47. The mean annual growth rate (λ) of the herd from 1997 – 2009 was 1.05 (SE = 0.01). The Aishihik wood bison herd was estimated at 1151 (90% CI: 998 – 1355). Our study suggests that ungulates temporarily marked with dye can be successfully used to obtain statistically sound population estimates. Article in Journal/Newspaper Bison bison athabascae Rangifer Rangifer tarandus Wood Bison Bison bison bison Yukon University of Tromsø: Septentrio Academic Publishing Aishihik ENVELOPE(-137.512,-137.512,61.598,61.598) Canada Champagne ENVELOPE(-136.483,-136.483,60.788,60.788) Yukon Rangifer 219 226 |
institution |
Open Polar |
collection |
University of Tromsø: Septentrio Academic Publishing |
op_collection_id |
ftunitroemsoe |
language |
English |
topic |
caribou abundance dye-marks mark-resight Rangifer tarandus caribou Yukon Territory population estimate |
spellingShingle |
caribou abundance dye-marks mark-resight Rangifer tarandus caribou Yukon Territory population estimate Hegel, Troy M. Russell, Kyle Jung, Thomas S. Using temporary dye marks to estimate ungulate population abundance in southwest Yukon, Canada |
topic_facet |
caribou abundance dye-marks mark-resight Rangifer tarandus caribou Yukon Territory population estimate |
description |
We describe the protocols of two mark-resight abundance surveys, using temporary dye-marks, for the Aishihik woodland caribou (Rangifer tarandus caribou) and wood bison (Bison bison athabascae) populations (herds) in the southwest Yukon Territory, Canada. We also provide recommendations based on experiences from these surveys for biologists and managers considering this approach. The Aishihik woodland caribou herd was the focus of intensive management in the 1990s aimed at recovering the herd. Following recovery activities, a target size of 2000 animals was determined and the Champagne-Aishihik Traditional Territory Community-Based Wildlife Management Plan recommended an estimate of the herd’s size be completed before the year 2013. We used an aerial mark-resight approach to estimate the herd’s size in March 2009. Caribou (n = 59) were marked from a helicopter with temporary dye, delivered via a CO2-powered rifle. Two independent resighting sessions were subsequently carried out via helicopter. The herd was estimated at 2044 animals (90% CI: 1768 – 2420) with an overall resighting rate of 0.47. The mean annual growth rate (λ) of the herd from 1997 – 2009 was 1.05 (SE = 0.01). The Aishihik wood bison herd was estimated at 1151 (90% CI: 998 – 1355). Our study suggests that ungulates temporarily marked with dye can be successfully used to obtain statistically sound population estimates. |
format |
Article in Journal/Newspaper |
author |
Hegel, Troy M. Russell, Kyle Jung, Thomas S. |
author_facet |
Hegel, Troy M. Russell, Kyle Jung, Thomas S. |
author_sort |
Hegel, Troy M. |
title |
Using temporary dye marks to estimate ungulate population abundance in southwest Yukon, Canada |
title_short |
Using temporary dye marks to estimate ungulate population abundance in southwest Yukon, Canada |
title_full |
Using temporary dye marks to estimate ungulate population abundance in southwest Yukon, Canada |
title_fullStr |
Using temporary dye marks to estimate ungulate population abundance in southwest Yukon, Canada |
title_full_unstemmed |
Using temporary dye marks to estimate ungulate population abundance in southwest Yukon, Canada |
title_sort |
using temporary dye marks to estimate ungulate population abundance in southwest yukon, canada |
publisher |
Septentrio Academic Publishing |
publishDate |
2012 |
url |
https://septentrio.uit.no/index.php/rangifer/article/view/2271 https://doi.org/10.7557/2.32.2.2271 |
long_lat |
ENVELOPE(-137.512,-137.512,61.598,61.598) ENVELOPE(-136.483,-136.483,60.788,60.788) |
geographic |
Aishihik Canada Champagne Yukon |
geographic_facet |
Aishihik Canada Champagne Yukon |
genre |
Bison bison athabascae Rangifer Rangifer tarandus Wood Bison Bison bison bison Yukon |
genre_facet |
Bison bison athabascae Rangifer Rangifer tarandus Wood Bison Bison bison bison Yukon |
op_source |
Rangifer; Vol 32 (2012): Special Issue No. 20; 219-226 1890-6729 |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/2271/2112 https://septentrio.uit.no/index.php/rangifer/article/view/2271 doi:10.7557/2.32.2.2271 |
op_rights |
Copyright (c) 2015 Troy M. Hegel, Kyle Russell, Thomas S. Jung http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.7557/2.32.2.2271 |
container_title |
Rangifer |
container_start_page |
219 |
op_container_end_page |
226 |
_version_ |
1766379161411125248 |