Navigation Links
Modeling study identifies characteristics of high elk-use areas in western Oregon, Washington
Date:10/21/2010

The availability of highly nutritious forage is one of four factors linked to the presence of elk populations in western Oregon and Washington, according to a modeling study recently completed by scientists from the U.S. Forest Service's Pacific Northwest (PNW) Research Station. Findings from the two-year study will be used to update land management planning for the ecologically and economically important ungulate in the region.

"Habitat models like the one we developed are critical to managing elk populations, particularly since current management practices are based on decades-old research and are in the process of being updated to reflect new science," said Mary Rowland, a wildlife biologist at the station's La Grande Forestry and Range Sciences Laboratory and one of the study's principal investigators. "Findings from our modeling go a long way in explaining where in western Oregon and Washington elk populations are most likely to thrive."

Rowland and colleagues used a nutrition model based on elk grazing trials that predicts dietary digestible energy (DDE), a variable that represents nutrition levels based on plant community types. The model was developed by John and Rachel Cook, biologists with the National Council for Air and Stream Improvement, and measures DDE during the summera crucial time for elk that ultimately impacts their survival and reproduction rates. The model can also be used to generate maps depicting areas of the landscape that offer the greatest nutritional resources and the effects of forest management on nutrition levels.

The scientists then used DDE predictions in combination with over 50 additional model variables to investigate actual patterns of elk habitat use in western Oregon and Washington. By using radiotelemetry locations of elk, primarily from tribal sources, from five years across three study areas, Rowland and her colleagues identified four variables that consistently provided the most support for observed habitat selection patterns of elkDDE, distance to roads open to public access, percent slope, and distance to cover-forage edge. The new elk habitat model was then validated by comparing its output to radiotelemetry observations from five additional study sites.

"Our results were extremely encouraging, with close matches seen between predicted elk use from the model and locations of elk in the study areas," said Mike Wisdom, a PNW Station research wildlife biologist, also in La Grande, who initiated the project. "This information can help set goals for changing elk use in certain areas and guiding management prescriptions for elk habitat."


'/>"/>

Contact: Yasmeen Sands
ysands@fs.fed.us
360-753-7716
USDA Forest Service, Pacific Northwest Research Station
Source:Eurekalert  

Related biology news :

1. Colorado State University scientist simplifies aerosols for modeling
2. Modeling reef ecosystems focus of workshop
3. Modeling Toxoplasma focus of workshop
4. Free AAPS Webinar to explore use of PKPD modeling
5. Universities receive grants to study climate change decisions
6. Center to study effects of plastics chemicals on childrens health
7. Study of tiny magnets may advance their use in microelectronics
8. BMC receives National Institutes of Health grant to study intrauterine cocaine and substance reslience
9. CRN responds to JAMA fish oil study
10. Singapore scientists first to perform genome-wide study of human stem cells
11. Shifting forms: Penn study shows how variations of same protein affect immune response
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Modeling study identifies characteristics of high elk-use areas in western Oregon, Washington
(Date:2/10/2020)... Mass. (PRWEB) , ... February 10, 2020 , ... ... and unveiled a structural 3D roadmap of the new coronavirus (2019-nCoV), a major ... the deadly virus. , Using a recently published viral genome of the Wuhan ...
(Date:2/6/2020)... , ... February 06, 2020 , ... ... facilitate access to unique lab-made bioresearch materials, today announced an agreement with ... plant-based meat and seafood a reality. Under the partnership, terrestrial meat and aquatic ...
(Date:2/1/2020)... ... ... Liver cancer, called hepatocellular carcinoma (HCC), occurs each year in more than ... the 5th most common cancer and the 2nd leading cause of cancer deaths. Mongolia ... HCC, while China has half of all patients suffering from liver cancer. The incidence ...
Breaking Biology News(10 mins):
(Date:1/28/2020)... COLLEGE, Pa. (PRWEB) , ... January 28, 2020 ... ... line of Better Salivary Assay Kits . The new Salivary Total ... bioscience research. “By measuring total immunoglobulin G in saliva, researchers can extend the ...
(Date:1/27/2020)... ... 2020 , ... Valencell, the leading innovator in wearable biometric ... Halma plc , a FTSE 100 global group of life-saving technology companies, ... Joshua Fund. A representative from Halma will join the Valencell board of directors. ...
(Date:1/24/2020)... ... January 24, 2020 , ... ... by companies in biotechnology, diagnostics, therapeutics, laboratory and clinical services during the first ... people around the world. And as Slone Partners celebrates its 20th ...
(Date:1/23/2020)... , ... January 22, 2020 , ... ... developments in the cosmetic surgery industry at two recent North American investor forums ... at the Canaccord Genuity Medical Technologies & Diagnostics Forum on November 21, 2019 ...
Breaking Biology Technology: