Abstract Following the growth and geographic expansion of wolf ( Canis lupus) populations reintroduced to Yellowstone National Park and central Idaho in 1995–1996, Rocky Mountain wolves were removed from the endangered species list in May 2009. Idaho and Montana immediately established hunting seasons with quotas equaling 20% of the regional wolf population. Combining hunting with predator control, 37.1% of Montana and Idaho wolves were killed in the year of delisting. Hunting and predator control are well-established methods to broaden societal acceptance of large carnivores, but it is unprecedented for a species to move so rapidly from protection under the Endangered Species Act to heavy direct harvest, and it is important to use all available data to assess the likely consequences of these changes in policy. Spellforce 2 anniversary edition cheats. For wolves, it is widely argued that human offtake has little effect on total mortality rates, so that a harvest of 28–50% per year can be sustained. Using previously published data from 21 North American wolf populations, we related total annual mortality and population growth to annual human offtake.

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In 2008 and 2009, Northern Rocky Mountain wolves were responsible for an average of 203 confirmed kills of cattle (from a population of approximately 5.9 million cattle) and 538 confirmed kills of sheep, or 0.8 cows/wolf pack/year and 2.2 sheep/wolf pack/year. Mar 07, 2018  Dobrodošli na kanal 'IvanPernarTV'. Ovaj kanal ne vodi i nema nikakve veze sa saborskim zastupnikom Ivanom Pernarom.

Contrary to current conventional wisdom, there was a strong association between human offtake and total mortality rates across North American wolf populations. Human offtake was associated with a strongly additive or super-additive increase in total mortality. Population growth declined as human offtake increased, even at low rates of offtake.

Finally, wolf populations declined with harvests substantially lower than the thresholds identified in current state and federal policies. These results should help to inform management of Rocky Mountain wolves. Citation: Creel S, Rotella JJ (2010) Meta-Analysis of Relationships between Human Offtake, Total Mortality and Population Dynamics of Gray Wolves ( Canis lupus). PLoS ONE 5(9): e12918. Editor: Geoffrey Clayton Trussell, Northeastern University, United States of America Received: April 30, 2010; Accepted: August 22, 2010; Published: September 29, 2010 Copyright: © 2010 Creel, Rotella. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Funding: This work was funded by the National Science Foundation.