publication . Article . 2000

Ecological role of hunting in population dynamics and its implications for co-management of the Porcupine caribou herd

Thomas A. Hanley; Donald E. Russell;
Open Access English
  • Published: 01 Apr 2000 Journal: Rangifer (issn: 1890-6729, eissn: 1890-6729, Copyright policy)
  • Publisher: Septentrio Academic Publishing
Abstract
At a present population size of 160 000 animals, the Porcupine caribou herd has been subjected to an annual harvest rate of 2% for the past couple of decades. We modeled potential sensitivity of herd population dynamics to hunting and used that relation as a basis for a herd monitoring system. Maximum number of adult cows that could be harvested without causing a subsequent decline in herd size was calculated as a function of total number of adult cows in the herd and recruitment of calves to yearling age-class. Maximum cow harvest, therefore, is a threshold above which hunting has destabilizing effects on herd dynamics. Actual harvest in relation to theoretical...
Subjects
mesheuropmc: animal diseases
free text keywords: monitoring system, caribou, Alaska, Alaska; caribou; monitoring system; Northwest Territories; population model; Rangifer tarandus; Yukon, population model, Rangifer tarandus, Animal culture, Northwest Territories, SF1-1100, Management Ecology; Caribou; Porcupine Herd
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publication . Article . 2000

Ecological role of hunting in population dynamics and its implications for co-management of the Porcupine caribou herd

Thomas A. Hanley; Donald E. Russell;