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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ftdoajarticles:oai:doaj.org/article:5a497367ccd44b5c9ae897992b60f085 2023-05-15T15:44:48+02:00 Using temporary dye marks to estimate ungulate population abundance in southwest Yukon, Canada Troy M. Hegel Kyle Russell Thomas S. Jung 2012-03-01T00:00:00Z https://doi.org/10.7557/2.32.2.2271 https://doaj.org/article/5a497367ccd44b5c9ae897992b60f085 EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/2271 https://doaj.org/toc/1890-6729 doi:10.7557/2.32.2.2271 1890-6729 https://doaj.org/article/5a497367ccd44b5c9ae897992b60f085 Rangifer, Vol 32, Iss 2 (2012) caribou abundance dye-marks mark-resight Rangifer tarandus caribou Yukon Territory Animal culture SF1-1100 article 2012 ftdoajarticles https://doi.org/10.7557/2.32.2.2271 2022-12-31T15:56:48Z 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 caribou Rangifer Rangifer tarandus Wood Bison Bison bison bison Yukon Directory of Open Access Journals: DOAJ Articles Yukon Canada Champagne ENVELOPE(-136.483,-136.483,60.788,60.788) Aishihik ENVELOPE(-137.512,-137.512,61.598,61.598) Rangifer 219 226 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
caribou abundance dye-marks mark-resight Rangifer tarandus caribou Yukon Territory Animal culture SF1-1100 |
spellingShingle |
caribou abundance dye-marks mark-resight Rangifer tarandus caribou Yukon Territory Animal culture SF1-1100 Troy M. Hegel Kyle Russell Thomas S. Jung 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 Animal culture SF1-1100 |
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 |
Troy M. Hegel Kyle Russell Thomas S. Jung |
author_facet |
Troy M. Hegel Kyle Russell Thomas S. Jung |
author_sort |
Troy M. Hegel |
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://doi.org/10.7557/2.32.2.2271 https://doaj.org/article/5a497367ccd44b5c9ae897992b60f085 |
long_lat |
ENVELOPE(-136.483,-136.483,60.788,60.788) ENVELOPE(-137.512,-137.512,61.598,61.598) |
geographic |
Yukon Canada Champagne Aishihik |
geographic_facet |
Yukon Canada Champagne Aishihik |
genre |
Bison bison athabascae caribou Rangifer Rangifer tarandus Wood Bison Bison bison bison Yukon |
genre_facet |
Bison bison athabascae caribou Rangifer Rangifer tarandus Wood Bison Bison bison bison Yukon |
op_source |
Rangifer, Vol 32, Iss 2 (2012) |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/2271 https://doaj.org/toc/1890-6729 doi:10.7557/2.32.2.2271 1890-6729 https://doaj.org/article/5a497367ccd44b5c9ae897992b60f085 |
op_doi |
https://doi.org/10.7557/2.32.2.2271 |
container_title |
Rangifer |
container_start_page |
219 |
op_container_end_page |
226 |
_version_ |
1766379161567363072 |