| Report |
Publish Year |
Description |
Filename |
|
Poplar Creek Herd: 1974-1977
|
1977
|
Caribou herd composition for Poplar Creek 1974-1977.
|
wsi_5888_rpt_1974-1977.pdf
(106 KB)
|
|
Mountain Caribou Censuses in the North Columbia Mountains
|
1994
|
Census Report (McLellan, Flaa & Woods, 1994): An aerial census was conducted in March 1994. Two blocks were searched in the Central Selkirks range: 1) Nakusp, which included coverage of Hamling Lakes (east of Nakusp) north to Beaton, and 2) Silvercup/Duncan, which included coverage of the Silvercup Mountains northeast of Trout Lake. Survey observations have been reassigned to the appropriate blocks based on revised boundaries in 2010. Refer to SPI data for specific results.
|
wsi_5888_rpt_1994.pdf
(1.1 MB)
|
|
Caribou censuses in the Kinbasket Lake and Duncan River areas
|
1995
|
Census report (Flaa, 1995): Enclosed are the results of caribou censuses for the Kinbasket Lake area in the Golden Forest District and the Duncan River/Lardeau River areas of the Kootenay Lake Forest District. The censuses were flown in a 206 B helicopter with a pilot and three observers. The censuses were 5-6 days after the lastsnowfall. Sightability of animals was probably high as recent monitoring of collared caribou in the censused areas showed them to be at treeline and easily observed. Survey observations have been reassigned to the appropriate blocks based on revised boundaries in 2010. Refer to SPI data for specific results.
|
wsi_5888_rpt_1995.pdf
(1.5 MB)
|
|
Central Selkirk Caribou Project - Annual Report
|
1997
|
Annual Report (Nanuq Consulting, 1997): A population census was conducted in April 1997. The search area was divided into two distinct survey units: Silvercup and Nakusp. The census areas were flown over a period of two days following a snowfall. 222 caribou were observed during the 1997 census including 22 of 23 collared animals. Results of the 1996 census are included in the discussion section of this report (note: some data listed in the report has been updated - refer to SPI data for specific results).
|
wsi_5888_rpt_1996-1997.pdf
(684 KB)
|
|
Central Selkirks Caribou, Historic to Present Times: Apparent Trends and Emerging Priorities
|
1997
|
Annual report appendix (Herbison, 1997): A review of historic information, early caribou studies, and telemetry information, this report indicates the most marked caribou population declines in the Central Selkirks were concentrated in the early 1900s and the late 1960s/early 1970s. In both periods, the declines were attributable to multiple, interrelated factors which included large-scale habitat loss and direct mortality from hunting and poaching. In the ranges that were still occupied by caribou in the mid-1970's, it appears that caribou may have maintained a consistent or recurring presence into the 1990's. Today's population of approximately 250 caribou is evidently composed of small groups, between which there appears to be frequent exchange of individuals. Present information indicates that caribou use a complexity of elevations and habitats within core habitat areas, often ranging widely between elevations within a given season.
|
wsi_5888_rpt_1996.pdf
(114 KB)
|
|
Mountain Caribou Habitat Use and Population Characteristics for the Central Selkirks Caribou Inventory Project
|
2000
|
Annual Report (Hamilton, Wilson & Smith, 2000): Summary of activities including aerial census surveys flown in March 1996, April 1997, and April 1999 (note: some data listed in the report has been updated - refer to SPI data for specific results).
|
wsi_5888_rpt_2000.pdf
(4.1 MB)
|
|
Population Census and Telemetry Monitoring for the Central Selkirk Caribou inventory Project 2002
|
2002
|
Census report: (Hamilton & Wilson, 2002): An aerial census survey of the Central Selkirks subpopulation was conducted in March 2002. The study area was stratified into Nakusp and Duncan census blocks. Flight paths were similar to those used in previous years. A total of 93 caribou, including 16 calves, were observed over two days of flights. 6 of 9 radio-collared caribou were sighted. A population estimate is provided in the report but has since been updated (refer to SPI data for specific results).
|
wsi_5888_rpt_2002.pdf
(305 KB)
|
|
2004 Population Census for the Central Selkirk Mountain Caribou
|
2004
|
Census report (Hamilton, 2004): An aerial census survey of the Central Selkirks subpopulation was conducted in late March 2004. The area was surveyed two days following fresh snowfall. Flight paths were similar to those used in previous years. A total of 70 caribou were observed during the census, 13 of which were calves. An additional 16 caribou were estimated from tracks (note: some data listed in the report has been updated - refer to SPI data for specific results).
|
wsi_5888_rpt_2004.pdf
(168 KB)
|
|
2005 Population Census of Mountain Caribou in the Central Selkirk Mountains of South eastern BC
|
2005
|
Census report (Hamilton & Wilson, 2005): An aerial census survey of the Central Selkirks subpopulation was conducted in April 2005. Flight paths were similar to those used in previous years. A total of 59 adult caribou and 16 calves were observed during the 2-day helicopter census. In addition, 19 caribou were estimated from tracks (note: some data listed in the report has been updated - refer to SPI data for specific results).
|
wsi_5888_rpt_2005.pdf
(397 KB)
|
|
2006 Population Census of Mountain Caribou in the Central Selkirk Mountains of Southeastern BC
|
2006
|
Census report (Hamilton, 2006): An aerial census survey of the Central Selkirks subpopulation was conducted in April 2006. Flight paths were similar to those used in previous years. A total of 74 caribou were observed and an additional 9 were estimated from tracks (note: some data listed in the report has been updated - refer to SPI data for specific results).
|
wsi_5888_rpt_2006.pdf
(609 KB)
|
|
2007 Population Census of Mountain Caribou in the Central Selkirk Mountains of Southeastern BC
|
2007
|
Census report (Hamilton & Wilson, 2007): An aerial census survey of the Central Selkirks subpopulation was conducted in April 2007. Skies were clear with good visibility for all census days. Flight paths were similar to those used in previous years. A total of 68 caribou were observed and an additional 20 were estimated from tracks (note: some data listed in the report has been updated - refer to SPI data for specific results).
|
wsi_5888_rpt_2007.pdf
(588 KB)
|
|
2008 Population Census of Mountain Caribou in the Central Selkirk Mountains
|
2008
|
Census report (Hamilton, 2008): An aerial census survey of the Central Selkirks subpopulation was conducted on March 5 & 6 2008, two days following snowfall. The fresh snow and clear skies allowed for excellent visibility. Flight paths were similar to those used in previous years. The total estimate was 102 caribou: 83 adults, 13 calves, and 6 sets of fresh tracks where the animals could not be located in the dense forest (note: some data listed in the report has been updated - refer to SPI data for specific results).
|
wsi_5888_rpt_2008.pdf
(534 KB)
|
|
TFL 23 - Caribou Assessment & Monitoring Report: Pool Creek, Coffee Creek and St. Leon South East
|
2008
|
Caribou Assessment Report (Seaton & Hamilton 2008): Reconnaissance-level assessments were conducted in 2007 Pool Creek, Coffee Creek, and St. Leon South East Planning Units (Appendix 1). Field sampling procedures followed provincial wildlife habitat assessment procedures (RIC 1998). Defining the planning unit, inventory collation and mapping, and a reconnaissance-level field assessment were conducted. In 2007, P&T filed for bankruptcy protection and the stand-level field assessment and final reporting was not completed. Monitoring was conducted in locations throughout TFL 23 in 2007 and 2008 (See Table 2 & 3). See report for specific results.
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wsi_5888_rpt_2008TFL23.pdf
(5.6 MB)
|
|
TFL23 - Caribou Assessment & Monitoring Report: Pool Creek, Coffee Creek and St. Leon South East
|
2008
|
Caribou Assessment Report (Seaton & Hamilton 2008): Reconnaissance-level assessments were conducted in 2007 Pool Creek, Coffee Creek, and St. Leon South East Planning Units (Appendix 1). Field sampling procedures followed provincial wildlife habitat assessment procedures (RIC 1998). Defining the planning unit, inventory collation and mapping, and a reconnaissance-level field assessment were conducted. In 2007, P&T filed for bankruptcy protection and the stand-level field assessment and final reporting was not completed. Monitoring was conducted in locations throughout TFL 23 in 2007 and 2008 (See Table 2 & 3). See report for specific results.
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wsi_5888_rpt_2008TFL23.pdf
(5.6 MB)
|
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2010 Mountain Caribou Census - Central Selkirk
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2010
|
Census report (DeGroot, 2010): A complete aerial census survey of the Central Selkirks subpopulation was conducted in March 2010. 65 adult caribou and 12 calves were spotted in the Naksup blocks for a total of 77 caribou. In addition there were three occasions where tracks were spotted but caribou could not be found. These tracks should account for 5-8 caribou. Seven caribou were spotted in the Duncan block, none of which were calves. Confidence is high for the Nakusp block, but lower for the Duncan block. A heli-ski guide reported caribou tracks in two separate locations in the Duncan area one month prior; however, only one group was located during the survey.
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wsi_5888_rpt_2010.pdf
(2.1 MB)
|
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2012 Mountain Caribou Census Central Selkirk Mountains
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2012
|
Census report (DeGroot, 2012): A complete aerial census survey of the Central Selkirks subpopulation was conducted in March 2012. 76 adult caribou and 9 calves were spotted in the Naksup blocks for a total of 85 caribou. In addition there was one occasion where tracks were spotted but caribou could not be found. These tracks should account for 1-2 caribou. Two caribou were spotted in the Duncan block, none of which were calves.
|
wsi_5888_rpt_2012.pdf
(766 KB)
|
|
2014 Mountain Caribou Census - Central Selkirk Mountains
|
2014
|
Census report (DeGroot, 2014): A complete aerial census survey of the Central Selkirks subpopulation was conducted in March 2014. Since 2005, the Central Selkirks subpopulation was divided into the Nakusp and Duncan blocks. Due to consistent observations of caribou that were not located in either block, we are returning to the convention of using the term "Central Selkirks" without further division into blocks. Forty-two adult caribou and eight calves were located for a total of 50 caribou. In addition there was one occasion where tracks were spotted but caribou could not be located. These tracks should account for 3 caribou, resulting in a total estimate of 53.
|
wsi_5888_rpt_2014.pdf
(1 MB)
|
|
2015 Mountain Caribou Census - Central Selkirk Mountains
|
2015
|
Census report (DeGroot, 2015): A complete aerial census survey of the Central Selkirks subpopulation was conducted between March 17 and April 2, 2015. Poor weather did not allow the census to be conducted during a three day continuous time span. Thirty-nine adult caribou and five calves (11.4%) were located for a total of 44 caribou.
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wsi_5888_rpt_2015.pdf
(830 KB)
|
|
2016 Mountain Caribou Census - Central Selkirk Mountains
|
2016
|
Census report (DeGroot, 2016): A complete aerial census survey of the Central Selkirks subpopulation was conducted in March 2016. Weather and light conditions were excellent for the duration of the census. Thirty-three adult caribou and two calves (5.7%) were located for a total of 35 caribou.
|
wsi_5888_rpt_2016.pdf
(933 KB)
|
|
2017 Mountain Caribou Census - Central Selkirk Mountains
|
2017
|
Census report (DeGroot, 2017): A complete aerial census survey of the Central Selkirks subpopulation was conducted in February 2017. Twenty-seven adult caribou and two calves (6.9%) were located for a total of 29 caribou.
|
wsi_5888_rpt_2017.pdf
(1 MB)
|
|
2018 Mountain Caribou Census - Central Selkirk Mountains
|
2018
|
Census report (Reid & DeGroot, 2018): A complete aerial census survey of the Central Selkirks subpopulation was conducted in March 2018. Survey conditions were favorable with significant snowfall (~50 cm) occurring one week prior. A total of 31 caribou were observed, 4 of which were calves (12.9%). All collared caribou (n=8) were observed during the survey. High levels of commercial heli-ski activity were observed within the core habitat area. Snowmobile use was also widespread across the range. In addition to disturbance from recreation, two cougar predation events on collared caribou have been documented since March 2017.
|
wsi_5888_rpt_2018.pdf
(913 KB)
|
|
2019 Mountain Caribou Census - Central Selkirk Mountains
|
2019
|
Census report (Reid, 2019): A complete aerial census survey of the Central Selkirks subpopulation was conducted in March 2019. Survey conditions were favorable with significant snowfall occurring 4 days prior. A total of 24 caribou were observed, 1 of which was a calf (4%). All collared caribou (n=5) were observed during the survey. Low recruitment is likely related to predation but may also be impacted by backcountry recreation.
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wsi_5888_rpt_2019.pdf
(616 KB)
|
|
2020 Mountain Caribou Monitoring Report - Central Selkirk Mountains
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2020
|
Monitoring report (Reid, 2020): A census survey was conducted in March 2020 for the Central Selkirks subpopulation. However, the census was interrupted by adverse weather conditions and later cancelled. This monitoring report combines observations from the partial census (12 caribou observed) as well as observations during collar deployment one month prior (14 caribou observed), resulting in a minimum number known alive of 26 caribou; this is an increase of 1 caribou from the 2019 estimate of 25 (24 observed plus 1 estimated from tracks).
|
wsi_5888_rpt_2020.pdf
(833 KB)
|
|
2021 Mountain Caribou Census - Central Selkirk Mountains
|
2021
|
Census report (Reid, 2021): A census of the Central Selkirk caribou sub population was conducted on March 3 and 4, 2021. The survey conditions were favorable with significant snowfall, which erased old tracks, occurring 5 days prior. The Duncan block of the Central Selkirks subpopulation was not included in this census. A total of 28 caribou were observed which included 26 adults and 2 calves. Despite 3 years of stability, the long-term trend in the Central Selkirk population is declining. The observed count from this census is 87% lower than the peak observed count of 1997 (222 - 28). Calf recruitment at 7.1% is below the suggested 12% - 16% recruitment required for a stable population. Adult mortality from predation was the primary driver of population declines along with chronically low recruitment for the past decade. Low recruitment is likely related to predation but may also be influenced by backcountry recreation disturbance. Recent management actions have been implemented to reduce adult mortality and winter disturbance, but without increased recruitment this population remains at high risk of extirpation.
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wsi_5888_rpt_2021.pdf
(864 KB)
|
|
2023 Mountain Caribou Census - Central Selkirk Mountains
|
2023
|
During the February census a total of 21 caribou were observed, which included 9 out of 11 collared animals. The population estimate was 25 (95% CI 21-30). After the second flight, the total observed caribou or minimum known number alive was 25 caribou. This includes 6 calves (5 penned and 1 wild). Including both wild and penned calves surviving to 10 months of age, calves were 24% of the population.
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wsi_5888_rpt_2023.pdf
(973 KB)
|
| Field Data |
Publish Year |
Description |
Filename |
|
|
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Point data for the 1974-1977 survey formatted for entry into SPI
|
wsi_5888_dct_1974-1977.xlsm
(194 KB)
|
|
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Point data for the 1994-1995 survey formatted for entry into SPI
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wsi_5888_dct_1994-1995.xlsm
(225 KB)
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Point data for the 1996-2002 survey formatted for entry into SPI
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wsi_5888_dct_1996-2002.xlsm
(212 KB)
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Point data for the 2004-2012 survey formatted for entry into SPI
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wsi_5888_dct_2004-2012.xlsm
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Point data for the 2007-2008 ground survey formatted for entry into SPI
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wsi_5888_dct_2007-2008.xlsm
(193 KB)
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Point data for the 2008 survey formatted for entry into SPI
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wsi_5888_dct_2008.xlsm
(194 KB)
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Point data for the 2014-2017 survey formatted for entry into SPI
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wsi_5888_dct_2014-2017.xlsm
(247 KB)
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Point data for the 2018-2019 survey formatted for entry into SPI
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wsi_5888_dct_2018-2019.xlsm
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Point data for the 2020 survey formatted for entry into SPI
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wsi_5888_dct_2020.xlsm
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Point data for the 2021 survey formatted for entry into SPI
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wsi_5888_dct_2021.xlsm
(197 KB)
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Point data for the 2023 survey formatted for entry into SPI
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wsi_5888_dct_2023.xlsm
(238 KB)
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Point data for the 2023 survey in original format
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wsi_5888_org_2023.xlsx
(121 KB)
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| GIS Spatial File |
Publish Year |
Description |
Filename |
|
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Spatial boundaries of the Central Selkirks Study Area and Blocks
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wsi_5888_spp_2021StudyArea.zip
(768 KB)
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Spatial lines of the 2010-2012 Flightlines.
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wsi_5888_spl_2010-2012Flightlines.zip
(412 KB)
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Spatial lines of the 2014-2017 Flightlines. The 2015 flight line file is incomplete and missing portions of the area covered on April 2.
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wsi_5888_spl_2014-2017Flightlines.zip
(841 KB)
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Spatial lines of the 2018-2019 Flightlines
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wsi_5888_spl_2018-2019Flightlines.zip
(58 KB)
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Spatial lines of the 2020 Flightlines
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wsi_5888_spl_2020Flightlines.zip
(11 KB)
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Spatial lines of the 2021 Aerial Late Winter Population Count & Recruitment Flightlines
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wsi_5888_spl_2021Flightlines.zip
(356 KB)
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Spatial lines of the 2023 Flightlines
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wsi_5888_spl_2023.zip
(110 KB)
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