Publications
Filter Total Items: 2072
Bat activity in thinned, unthinned, and old-growth forests in western Oregon Bat activity in thinned, unthinned, and old-growth forests in western Oregon
Many aspects of the influences of forest management activities on bats (Chiroptera) in the Pacific Northwest are poorly known. We compared thinned and unthinned forest stands of the same age and old-growth forest stands to determine potential differences in structure and amount of use by bats. We hypothesized that activity levels of bats would differ in stands differing in structure as a...
Authors
Marcia L. Humes, J. P. Hayes, Michael W. Collopy
Effects of sample size on kernel home range estimates Effects of sample size on kernel home range estimates
Kernel methods for estimating home range are being used increasingly in wildlife research, but the effect of sample size on their accuracy is not known. We used computer simulations of 10-200 points/home range and compared accuracy of home range estimates produced by fixed and adaptive kernels with the reference (REF) and least-squares cross-validation (LSCV) methods for determining the...
Authors
D.E. Seaman, J.J. Millspaugh, Brian J. Kernohan, Gary C. Brundige, Kenneth J. Raedeke, Robert A. Gitzen
Response of high-elevation forests in the Olympic Mountains to climatic change Response of high-elevation forests in the Olympic Mountains to climatic change
The gap model ZELIG was used to examine the effects of increased temperature (2°C) and altered precipitation on high-elevation ecosystems of the Olympic Mountains, Washington, U.S.A. Changes in tree species distribution and abundance, as well as stand biomass, were examined on north and south aspects in the dry northeast (NE) and wet southwest (SW) regions of the Olympics for (i) warmer...
Authors
A.N. Zolbrod, D. L. Peterson
Assessing the effects of fire disturbances on ecosystems: A scientific agenda for research and management Assessing the effects of fire disturbances on ecosystems: A scientific agenda for research and management
A team of fire scientists and resource managers convened 17-19 April 1996 in Seattle, Washington, to assess the effects of fire disturbance on ecosystems. Objectives of this workshop were to develop scientific recommendations for future fire research and management activities. These recommendations included a series of numerically ranked scientific and managerial questions and responses...
Authors
D. L. Schmoldt, David L. Peterson, Robert E. Keane, J. M. Lenihan, D. McKenzie, David R. Weise, D. V. Sandberg
Wintering Canada geese in the Willamette Valley Wintering Canada geese in the Willamette Valley
No abstract available.
Authors
Charles J. Henny, M.B. Naughton
Relevance of research to resource managers and policy makers Relevance of research to resource managers and policy makers
No abstract available.
Authors
Michael N. Kochert, Michael W. Collopy
Eastern Bluebird (Sialia sialis) Eastern Bluebird (Sialia sialis)
No abstract available
Authors
P.A. Gowaty, J.H. Plissner
Prairie Falcon (Falco mexicanus) Prairie Falcon (Falco mexicanus)
No abstract available.
Authors
Karen Steenhof
Highway to the tropics: Using satellite telemetry and the Internet to track ospreys in the Western Hemisphere Highway to the tropics: Using satellite telemetry and the Internet to track ospreys in the Western Hemisphere
No abstract available.
Authors
M.S. Martell, M.J. Kennedy, Charles J. Henny, P. Nye