Saturday, December 28, 2013

Our friend Helen Mcginnis followed up with me regarding this weeks Post on Washington State Puma hunting------As the Large Carnivore Lab Researchers at Washington State University have discovered and documented,,,,,, "(Puma)Complaints and depredations were most strongly associated with cougars harvested the previous year............... "The odds of increased complaints and livestock depredations increased dramatically (36 to 240%) with increased cougar harvest"........... "We suggest that increased young male immigration, social disruption of cougar populations, and associated changes in space use by cougars - caused by increased hunting resulted in the increased complaints and livestock depredations"............ "Widespread indiscriminate hunting does not appear to be an effective preventative and remedial method for reducing predator complaints and livestock depredations".................It is more and more recognized by Wildlife Professionals that human hunting and killing of Carnivores (Pumas, Wolves, Bears, Coyotes) seems to result in increased livestock depredations and human conflicts rather than less conflicts!



Read the open-access, full-text article here:
http://dx.plos.org/10.1371/journal.pone.0079713

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Effects of Remedial Sport Hunting on Cougar Complaints and Livestock Depredations(11/19/13 PLOS ONE Open Access

Abstract:
Remedial sport hunting of predators is often used to reduce predator populations and associated complaints and livestock depredations. We assessed the effects of remedial sport hunting on reducing cougar complaints and livestock depredations in Washington from 2005 to 2010 (6 years). The number of complaints, livestock depredations, cougars harvested, estimated cougar populations, human population and livestock populations were calculated for all 39 counties and 136 GMUs (game management units) in Washington. 

The data was then analyzed using a negative binomial generalized linear model to test for the expected negative relationship between the number of complaints and depredations in the current year with the number of cougars harvested the previous year. As expected, we found that complaints and depredations were positively associated with human population, livestock population, and cougar population. 

However, contrary to expectations we found that complaints and depredations were most strongly associated with cougars harvested the previous year. The odds of increased complaints and livestock depredations increased dramatically (36 to 240%) with increased cougar harvest. We suggest that increased young male immigration, social disruption of cougar populations, and associated changes in space use by cougars - caused by increased hunting resulted in the increased complaints and livestock depredations. Widespread indiscriminate hunting does not appear to be an effective preventative and remedial method for reducing predator complaints and livestock depredations.

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