Table 1 Winter distribution (survey in mid-March by Alaska Department of Fish and Game; ADFG) of collared Central Arctic Herd (CAH) caribou south of the Continental Divide (CD) of the Brooks Range in winters 2001/02–2019/20 (Modified and updated from [66,67,68,69,70])
From: Quantifying effects of snow depth on caribou winter range selection and movement in Arctic Alaska
Winter | Year of mid-March ADFG survey | Number of collars located | % located ADFG (VHF and GPS) collars south of CD | % GPS-collared caribou in this study wintering south of CD | CAH primary winter range location, south (S) or north (N) of the CD |
|---|---|---|---|---|---|
2001/02 | 2002 | 103 | 69 | – | S |
2002/03 | 2003 | 89 | 68 | – | S |
2003/04 | 2004 | 100 | 87 | – | S |
2004/05 | 2005 | 111 | 60 | – | S |
2005/06 | 2006 | 76 | 54 | – | S |
2006/07 | 2007 | 54 | 60 | – | S |
2007/08 | 2008 | 43 | 2 | – | N |
2008/09 | 2009 | 58 | 95 | – | S |
2009/10 | 2010 | 53 | 91 | – | S |
2010/11 | 2011 | 50 | 94 | – | S |
2011/12 | 2012a | 10 | 80 | – | S |
2012/13 | 2013 | 39 | 100 | – | S |
2013/14 | 2014a | 17 | 94 | – | S |
2014/15 | 2015 | 56 | 88 | 100 | S |
2015/16 | 2016 | 28 | 64 | 86 | S |
2016/17 | 2017 | 37 | 8 | 0 | N |
2017/18 | 2018 | 85 | 77 | 67 | S |
2018/19 | 2019 | 98 | 7 | 14 | N |
2019/20 | 2020 | 109 | 0 | 0 | N |