Miller, F L; Russell, R H; Gunn, A (1975): Caribou observations on Queen Elizabeth Islands (Tab. 1 + 2) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.743321, Supplement to: Miller, FL et al. (1975): The recent decline of peary caribou on western Queen Elizabeth Islands of Arctic Canada. Polarforschung, 45(1), 17-21, hdl:10013/epic.29418.d001
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Abstract:
The numbers and distributions of Peary caribou (Rangiier tarandus pearyi) on western Queen Elizabeth Islands, Northwest Territories were determined by aerial surveys based on a standard census strip method. Surveys were flown in March-April and July-August periods in 1972, 1973, and 1974. Comparison of the 1973 and 1974 survevs with those results of a comparable survey in 1961 showed an overall decline of 89% in numbers of caribou between 1961 and 1974. Percentage reduction of caribou numbers from 1961 to 1874 followed a west-cast gradient on the three major islands: Prince Patrick 72%, Melville 87% , and Bathurst 92%. The marked decrease in numbers of caribou is attributed to a combination of high winter mortality in some years and an overall low rate of births and recruitment from 1961 to 1974.
Coverage:
Median Latitude: 76.649085 * Median Longitude: -109.019223 * South-bound Latitude: 75.313400 * West-bound Longitude: -118.762500 * North-bound Latitude: 78.576400 * East-bound Longitude: -99.746100
Date/Time Start: 1961-01-01T00:00:00 * Date/Time End: 1974-01-01T00:00:00
Event(s):
Alexander * Latitude: 75.851500 * Longitude: -102.769500 * Date/Time Start: 1961-12-31T00:00:00 * Date/Time End: 1974-12-31T00:00:00 * Location: Western Queen Elizabeth Islands, Northwest Territories * Method/Device: Observation (OBSE)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | DATE/TIME | Date/Time | Geocode | |||
| 3 | Individuals | Ind | # | Miller, F L | Counting | |
| 4 | Individuals | Ind | # | Miller, F L | Estimated | |
| 5 | Percentage | Perc | % | Miller, F L | of total estimated caribou | |
| 6 | Individuals | Ind | # | Miller, F L | Estimated | caribou/100 km**2 |
| 7 | Percentage | Perc | % | Miller, F L | of total survey area |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
166 data points
Data
| 1 Event | 2 Date/Time | 3 Ind [#] (Counting) | 4 Ind [#] (Estimated) | 5 Perc [%] (of total estimated caribou) | 6 Ind [#] (caribou/100 km**2, Estimated) | 7 Perc [%] (of total survey area) |
|---|---|---|---|---|---|---|
| Alexander | 1961 | 15 | 198 | 0.8 | 40 | 0.5 |
| Alexander | 1973 | 0 | 0 | 0.0 | 0 | |
| Alexander | 1974 | 0 | 0 | 0.0 | 0 | |
| Bathurst | 1961 | 225 | 2723 | 11.2 | 17 | 18.0 |
| Bathurst | 1973 | 134 | 527 | 10.5 | 3 | |
| Bathurst | 1974 | 41 | 231 | 8.6 | 1 | |
| Borden | 1961 | 100 | 163 | 6.7 | 58 | 3.1 |
| Borden | 1973 | 2 | 16 | 0.3 | 1 | |
| Borden | 1974 | 9 | 0.3 | 0 | ||
| Brock | 1961 | 11 | 161 | 1.1 | 37 | 0.9 |
| Brock | 1973 | 10 | 39 | 0.5 | 3 | |
| Brock | 1974 | 20 | 0.5 | 2 | ||
| Cameron | 1961 | 21 | 235 | 0.9 | 22 | 1.2 |
| Cameron | 1973 | 2 | 7 | 0.1 | 1 | |
| Cameron | 1974 | 5 | 19 | 0.7 | 2 | |
| Eglinton | 1961 | 13 | 204 | 0.8 | 13 | 1.7 |
| Eglinton | 1973 | 6 | 12 | 0.3 | 1 | |
| Eglinton | 1974 | 9 | 18 | 0.7 | 1 | |
| Emerald | 1961 | 5 | 190 | 0.6 | 29 | 0.6 |
| Emerald | 1973 | 3 | 24 | 0.8 | 7 | |
| Emerald | 1974 | 13 | 0.8 | 4 | ||
| Lougheed | 1961 | 86 | 1325 | 5.4 | 102 | 1.5 |
| Lougheed | 1973 | 14 | 56 | 1.1 | 4 | |
| Lougheed | 1974 | 0 | 0 | 0.0 | 0 | |
| Mackenzie_King | 1961 | 111 | 2192 | 9.0 | 43 | 5.7 |
| Mackenzie_King | 1973 | 0 | 0 | 0.0 | 0 | |
| Mackenzie_King | 1974 | 15 | 59 | 2.2 | 1 | |
| Massey | 1961 | 1 | 13 | 0.1 | 3 | 0.5 |
| Massey | 1973 | 11 | 47 | 0.9 | 11 | |
| Massey | 1974 | 0 | 0 | 0.0 | 0 | |
| Melville | 1961 | 769 | 12799 | 52.6 | 30 | 47.3 |
| Melville | 1973 | 864 | 3425 | 68.8 | 8 | |
| Melville | 1974 | 356 | 1678 | 62.5 | 5 | |
| Prince_Patrick | 1961 | 138 | 2254 | 9.2 | 14 | 17.7 |
| Prince_Patrick | 1973 | 205 | 807 | 16.2 | 5 | |
| Prince_Patrick | 1974 | 163 | 621 | 23.1 | 4 | |
| Vanier | 1961 | 26 | 396 | 1.6 | 35 | 1.3 |
| Vanier | 1973 | 5 | 20 | 0.4 | 2 | |
| Vanier | 1974 | 4 | 16 | 0.6 | 1 |