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Caribou herd ranges. Porcupine caribou's 1,500 miles (2,400 km) annual land migration between their winter range in the boreal forests of Alaska and northwest Canada over the mountains to the coastal plain and their calving grounds on the Beaufort Sea coastal plain, [45] is the longest of any land mammal on earth. In 2019, the herd size was ...
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Horses on the Pryor Mountains Wild Horse Range in Montana. The BLM distinguishes between "herd areas" (HA) where feral horse and burro herds existed at the time of the passage of the Wild and Free-Roaming Horses and Burros Act of 1971, and "Herd Management Areas" (HMA) where the land is currently managed for the benefit of horses and burros, though "as a component" of public lands, part of ...
In 2001, proponents of the development of the oil fields at Prudhoe Bay and Kuparuk, which would be approximately 60 miles (97 km) west of the refuge, argued that the Central Arctic caribou herd had increased its numbers "in spite of several hundred miles of gravel roads and more than a thousand miles of elevated pipe."
The Bluenose East caribou herd began a recovery with a population of approximately 122,000 in 2010, [9] which is being credited to the establishment of Tuktut Nogait National Park. [10] According to T. Davison 2010, CARMA 2011, the three other herds "declined 84-93% from peak sizes in the mid-1980s and 1990s.
Nov. 8—Western Arctic Caribou Herd One of the biggest caribou herds in the world that sustains subsistence hunters in the Northwest Arctic has been declining for the last five years. In 2022, it ...
Despite the focus on protections and conservation of the mountain caribou, herd numbers since the CORE was established have continued to diminish from approximately 2,450 spread across 17 separate isolated subpopulations to 1,900 animals in 15 subpopulations between 1997 and 2002 (Mountain Caribou Technical Advisory Committee, 2002) as a result ...
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