WEATHER IN LINCOLN COUNTY

 

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Are Cougars making their move onto the coast?

Cougars might be making a major alteration to their habitat boundaries…


A few decades ago, cougars in the coast range were practically unheard of. But as Oregon’s healthy cougar population has expanded into northwest Oregon from population strongholds in the Blue Mountains and south Cascades, ODFW is observing more cougar harvest, sightings and damage complaints along the coast.

Researchers have studied cougar home range sizes, population densities and diet in the Cascades and eastern Oregon, but not along the coast. A new study aims to change that through a research effort that will collar 10 adult cougars in the Alsea Wildlife Management Unit, which includes parts of Lincoln and Benton counties.

ODFW will work with volunteer agents who have hounds to tree cougars in the study area so ODFW can immobilize them, take samples including blood and DNA, and get them fitted with a GPS collar. Location data collected from the collars will be used to calculate home range size and habitat selection.

Click here for details

Like similar research in other parts of the state, the study will also use scat detection dogs to refine a cougar population estimate for the unit and to analyze their diet. The scat provides DNA data used in capture-recapture models that estimate population size and density. The diet analysis provides important information on what percent of common prey items (deer, elk or small mammal) are making up area cougars’ diets.

Collaring of the cougars will begin this month and will continue until 10 adults are collared or April 1, 2019. Once a cougar is collared the GPS unit will collect location data for 17 months.

Click here for info

It is legal to harvest a collared cougar but ODFW prefers that hunters not shoot a cougar with a collar if possible. Hunters who do will need to contact ODFW and return the collar so the data can be retrieved and the collar reused, plus complete the normal check-in process that is required whenever a hunter takes a cougar or bear in Oregon.

“Better data means better science based management decisions, and this data will help refine our cougar population estimates for this region,” says Jason Kirchner, district wildlife biologist in Newport. “This research will help ODFW manage for a viable population of cougars and assess effects on their prey populations, so we can improve management and conservation decisions for both cougars and ungulate species on the coast.”

Click here for details

Oregon’s statewide cougar population is estimated at 6,400. The Alsea Unit is part of Zone A, the Coast/North Cascades Zone, which has an estimated population of 950 cougars of all age classes.

The research is being funded through federal grants from the Wildlife Restoration Act and donations from Oregon Wildlife Foundation and the Oregon Hunters Association.

 

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