Pacifi c Northwest Research Station September 2014 Forest Service DPAR TMENT OF AGRICUL T U RE 1 Th omas A. Hanley is a research wildlife biologist, U.S. Department of Agriculture, Forest Service, Pacifi c Northwest Research Station, Forestry Sciences Laboratory, 11175 Auke Lake Way, Juneau, AK 99801. Michael P. Gillingham and Katherine L. Parker are professors, Natural Resources and Environmen...

The involvement of porcupines, Erethizon dorsatum (L.), in the ecology of Colorado tick fever (CTF) virus in Rocky Mountain National Park was investigated from 1975 to 1977. Porcupine dens and feeding activity were found mostly on rocky knolls or on south-facing slopes within open stands of the montane coniferous forest, and 20 adult porcupines were trapped or captured by hand at those location...

Recent,forest inventories of North Carolina, South Carolina, and Virginia, included sampling for hvdr-ic x,egetution, hydrk soils, and wetland hydrology. Forest samples that met all 3 of these criteriu were classified us ,forested wetland. This study characterizes wetland ,forests by extent, owner, uge, ,forest type, physiogruphy, volume, growth. and removuls, and evaluates its contribution to ...

Matthew J. Helmers, Department of Agricultural and Biosystems Engineering, Iowa State University Thomas M. Isenhart, Department of Natural Resource Ecology and Management, Iowa State University Michael G. Dosskey, USDA Forest Service, National Agroforestry Center, Lincoln, Nebraska Seth M. Dabney, USDA-ARS National Sedimentation Laboratory, Oxford, Mississippi Jeffrey S. Strock, Department of S...

Fifty-four plots in 33-43 year old longleaf pine plantations were compared to 30 remnant plots in longleaf stands on the Savannah River Site in South Carolina. Within these stands, the structure and composition of primarily the herb layer relative to a presumed soil moisture or soil texture gradient was studied using the North Carolina Vegetation Survey methodology. Data were also collected on ...

Addressing the challenges of wildland fire requires that science be relevant to management and integrated into decisions. Co-production is often touted as a process can increase utility for management, by involving scientists managers in knowledge creation problem solving. Despite documented benefits co-production, these efforts face number institutional barriers. Further research needed on how...

Douglas-fir (Pseudotsuga menziesii) is one of numerous wide-range forest tree species represented by subspecies/varieties, which hybridize in contact zones. This study examined the genetic structure of this North American conifer and its two hybridizing varieties, coastal and Rocky Mountain, at intervarietal and intravarietal level. The genetic structure was subsequently associated with the Ple...

*Corresponding author: U.S. Geological Survey Northern Rocky Mountain Science Center, Global Change Program, Science Center, Glacier National Park, West Glacier, Montana 59936, U.S.A. [email protected] {Big Sky Institute, 106 AJM Johnson Hall, Montana State University, Bozeman, Montana 59717, U.S.A. {U.S. Geological Survey Science Center, West Glacier Field Station, Glacier National Park,...

Ryan P. Kovach,∗ ¶ Gordon Luikart,† Winsor H. Lowe,‡ Matthew C. Boyer,§ and Clint C. Muhlfeld∗† ∗U.S. Geological Survey, Northern Rocky Mountain Science Center, Glacier National Park West Glacier, MT 59936, U.S.A. †Flathead Lake Biological Station, University of Montana, Polson, MT 59860, U.S.A. ‡Division of Biological Sciences, University of Montana, Missoula, MT 59812, U.S.A. §Montana Fish, W...

Air pollutants pose a risk to forest health and vitality in the United States. Here we present the major findings from a national scale air pollution assessment that is part of the United States' 2003 Report on Sustainable Forests. We examine trends and the percent forest subjected to specific levels of ozone and wet deposition of sulfate, nitrate, and ammonium. Results are reported by Resource...