Project Details

Name:	1967-ongoing - Caribou - Population Assessment - Itcha-Ilgachuz, Rainbows - Cariboo Region
ID:	5955
Coordinator:	Carolyn Shores; Nicola Dodd
Funding Agency:
Region:	Cariboo
Security:	Some documents for this project are secured. Click on a secured document's filename to initiate a data request.

Surveys (32 records)

Survey Name	Survey Intensity	Inventory Method	Target Taxa (Species Code / Scientific Name / English Name)  * = Primary Focus
2021 - Caribou - Aerial Late Winter Recruitment - Itcha-Ilgachuz	Relative Abundance		M-RATA / Rangifer tarandus / Caribou*
1978-1987 - Caribou - Aerial Rut Composition - Itcha-Ilgachuz	Relative Abundance		M-RATA / Rangifer tarandus / Caribou*
1994-2001 - Caribou - Aerial Rut Composition - Itcha-Ilgachuz	Relative Abundance		M-RATA / Rangifer tarandus / Caribou*
2012 - Caribou - Aerial Post-Calving Population Count & Recruitment-MRR - Itcha-Ilgachuz	Absolute Abundance		M-RATA / Rangifer tarandus / Caribou*
2012-2015 - Caribou - Aerial Late Winter Recruitment - Itcha-Ilgachuz	Relative Abundance		M-RATA / Rangifer tarandus / Caribou*
2013 - Caribou - Aerial Rut Composition - Itcha-Ilgachuz	Relative Abundance		M-RATA / Rangifer tarandus / Caribou*
2014 - Caribou - Aerial Post-Calving Population Count & Recruitment-MRR - Itcha-Ilgachuz	Absolute Abundance		M-RATA / Rangifer tarandus / Caribou*
2014 - Caribou - Aerial Rut Composition - Itcha-Ilgachuz	Relative Abundance		M-RATA / Rangifer tarandus / Caribou*
2016 - Caribou - Aerial Rut Population Count & Composition - Rainbows	Absolute Abundance		M-RATA / Rangifer tarandus / Caribou*
2017 - Caribou - Aerial Post-Calving Population Count & Recruitment - Itcha-Ilgachuz	Absolute Abundance		M-RATA / Rangifer tarandus / Caribou*
2018-2019 - Caribou - Aerial Post-Calving Population Count & Recruitment-MRR - Itcha-Ilgachuz	Absolute Abundance		M-RATA / Rangifer tarandus / Caribou*
2020 - Caribou - Aerial Post-Calving Population Count & Recruitment-MRR - Itcha-Ilgachuz, Rainbows	Absolute Abundance		M-RATA / Rangifer tarandus / Caribou*
2007 - Caribou - Aerial Rut Composition - Itcha-Ilgachuz	Relative Abundance		M-RATA / Rangifer tarandus / Caribou*
2007-2008 - Caribou - Aerial Rut Population Count & Composition - Rainbows	Absolute Abundance		M-RATA / Rangifer tarandus / Caribou*
2007-2010 - Caribou - Aerial Post-Calving Population Count & Recruitment - Itcha-Ilgachuz	Absolute Abundance		M-RATA / Rangifer tarandus / Caribou*
2010 - Caribou - Aerial Late Winter Recruitment - Itcha-Ilgachuz	Relative Abundance		M-RATA / Rangifer tarandus / Caribou*
1996-2004 - Caribou - Aerial Late Winter Recruitment - Itcha-Ilgachuz, Rainbows	Relative Abundance		M-RATA / Rangifer tarandus / Caribou*
1995-2001 - Caribou - Aerial Rut Population Count & Composition - Rainbows	Absolute Abundance		M-RATA / Rangifer tarandus / Caribou*
1996-2003 - Caribou - Post-Calving Population Count & Recruitment-MRR - Itcha-Ilgachuz, Rainbows	Absolute Abundance		M-RATA / Rangifer tarandus / Caribou*
1985-1988 - Caribou - Post-Calving Population Count & Recruitment-MRR - Itcha-Ilgachuz, Rainbows	Absolute Abundance		M-RATA / Rangifer tarandus / Caribou*
1986-1987 - Caribou - Aerial Rut Population Count & Composition - Rainbows	Absolute Abundance		M-RATA / Rangifer tarandus / Caribou*
1988-1992 - Caribou - Aerial Post-Calving Population Count & Recruitment - Itcha-Ilgachuz	Absolute Abundance		M-RATA / Rangifer tarandus / Caribou*
1994-1995 - Caribou - Aerial Post-Calving Population Count & Recruitment - Itcha-Ilgachuz, Rainbows	Absolute Abundance		M-RATA / Rangifer tarandus / Caribou*
1967-1977 - Caribou - Aerial Reconnaissance - Rainbows	Presence/Not detected (possible)		M-RATA / Rangifer tarandus / Caribou*
1973-1975 - Caribou - Ground Reconnaissance - Rainbows	Presence/Not detected (possible)		M-RATA / Rangifer tarandus / Caribou*
1973-1988 - Caribou - Aerial Late Winter Recruitment - Itcha-Ilgachuz, Rainbows	Relative Abundance		M-RATA / Rangifer tarandus / Caribou*
1974-1977 - Caribou - Population Review-Expert Knowledge - Itcha-Ilgachuz	Absolute Abundance		M-RATA / Rangifer tarandus / Caribou*
1978-1984 - Caribou - Aerial Post-Calving Population Count & Recruitment - Itcha-Ilgachuz	Absolute Abundance		M-RATA / Rangifer tarandus / Caribou*
2022 - Caribou - Aerial Late Winter Recruitment - Itcha-Ilgachuz	Relative Abundance		M-RATA / Rangifer tarandus / Caribou*
2023 - Caribou - Aerial Late Winter Recruitment - Itcha-Ilgachuz, Rainbows	Relative Abundance		M-RATA / Rangifer tarandus / Caribou*
2023 - Caribou - Aerial Post-Calving Population Count & Recruitment - Itcha-Ilgachuz	Absolute Abundance		M-RATA / Rangifer tarandus / Caribou*
2021 - Caribou - Aerial Post-Calving Population Count & Recruitment - Itcha-Ilgachuz			M-RATA / Rangifer tarandus / Caribou*

Documents (3 records) Display All

Report	Publish Year	Description	Filename
Itcha-Ilgachuz June Population Survey 2023	2023	The Itcha-Ilgachuz caribou herd experienced a rapid population decline of 80% between 2003 and 2019 (Shores 2019). In response to this population decline, a wolf reduction program was initiated in 2020 to recover the Itcha-Ilgachuz caribou population. After initial population increases in 2020 and 2021, the population estimate of 551 in 2023 was the same as the last population estimate of 550 in 2021 (lambda=1.004). Neonate percentage and calf recruitment have increased following wolf removal. Neonate percentage was at a low of 10% in 2018 and has increased back up to its expected range (20-30%). Calf recruitment in the 2023 late-winter recruitment survey was very high at 24.2%. Coupled with a high adult survival rate of 85%, population metrics have been improving overall following the wolf removal program. The population estimate plateau between 2021 and 2023 highlights the importance of continued monitoring. It also underlines that habitat protection and restoration measures are the long-term and ultimate solution to Itcha-Ilgachuz caribou herd recovery.	wsi_5955_rpt_2023PC.pdf (705 KB)
Field Data	Publish Year	Description	Filename
		Point data for the 2023 Post-Calving Population Count survey formatted for entry into SPI	wsi_5955_dct_2023PC.xlsm
GIS Spatial File	Publish Year	Description	Filename
		Spatial lines of the 2023 Post-Calving Population Count Flightlines in klm format	wsi_5955_spl_2023PC.kml (137 KB)