This proposal by the Coniferous Forest Biome investigators requests support
for the third and fourth years of a highly integrated series of investigations
within the Ecosystem Analysis program of the United States effort under the
International Biological Program. The program for the Coniferous Forest Biome
has been approved by the...
Three aspects of lotic ecology have been analyzed utilizing data collected from totally autotrophic-based streams maintained by the Weyerhaeuser Company: energy transfer, effects of nitrogen addition, and simulation
modeling. All three streams had very similar periphyton, grazer, collector,
invertebrate predator, and vertebrate predator (fish) communities during
the study period (1972-1974)....
The purpose of this study was to understand the influence of organic material and nutrients from spawning salmon and supplemented salmon carcasses on stream food webs. My study objectives were to examine 1) assimilation of salmon-derived nutrients (SDN) by producers and consumers in the food web, 2) epilithic biofilm productivity,...
Published October 2001. Declared out of print June 2009. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The 737 million acres (298 million hectares) of forests in the United States are a rich resource that produces
timber, minerals, wildlife, forage for domestic animals, and water. These forests also provide the environment
for tourism, outdoor recreation, retirement, and a multitude of other uses. Whether the lands are publicly...
In the Northwest Great Basin, aspen (Populus tremuloides) communities uniquely contribute to the biodiversity of a semi-arid, sagebrush-dominated landscape. In this same region, western juniper (Juniperus occidentalis) is encroaching into aspen stands. This study determined the timing, extent, and some of the effects of this expansion. Aspen stands below 2,133...