A key constraint faced by consumers is achieving a positive energy balance in the face of temporal variation in foraging opportunities. Recent work has shown that spatial heterogeneity in resource phenology can buffer mobile consumers from this constraint by allowing them to track changes in resource availability across space. For...
Project F-82-R Final Report The results of a study to understand the ecological requirements of brown trout and determine the effects of water development and land use on fish populations in the Deschutes River. Abundance, distribution, survival, age, growth, fecundity, food, migrations and ecological relationships to other species were all...
Four formations of the Cretaceous Nanaimo Group crop out on Galiano Island and on Parker and Gossip Islands, nearby. These formations are: early Campanian Geoffrey Formation which encloses a tongue of the Northumberland Formation; early Campanian to late Maestrichtian Spray Formation; and Maestrichtian Gabriola Formation. The stratigraphic succession has a...
Full Text:
AN ABSTRACT OF THE THESIS OF
JACK MELTON CARTER for the
The soil-borne pathogen Rhizoctonia solani AG 8 causes major yield losses in wheat (Triticum aestivum. L) production worldwide. Plant tissues of Brassicaceae species contain glucosinolates that are hydrolyzed in the presence of the enzyme myrosinase into products with pesticidal properties. Growth chamber studies were conducted to determine the effect of...
This PNW Extension publication provides an overview of various types of powderpost beetles, the symptoms associated with their damage, as well as tips for prevention and control.
This compilation of theses and dissertations (a part of the OSU Bibliographic Series) for the period 1970-1977 reflects this university's emphasis on research and graduate study. It may be viewed as an indicator of the contributions made to the state of Oregon through graduate study and research at Oregon State...
The nng nematode, Cnconenwlla xenoplax, has been reported to depress the vigor and yields of grapevines in Europe, California, Washington, and Michigan. Population densities of 500 C. xenoplax per kg of soil have reported to reduce vine yield 10-25% in California. A survey of Oregon vineyards found C. xenoplax in...
An aging electricity distribution system and reduced availability of naturally durable tropical hardwoods in Australia will
combine in the next decade to produce a major shortage of poles. One approach to mitigating this shortage is to utilize lower
durability species and improve the penetration of preservatives into the refractory heartwood...
A key constraint faced by consumers is achieving a positive energy balance in the face of temporal variation in foraging opportunities. Recent work has shown that spatial heterogeneity in resource phenology can buffer mobile consumers from this constraint by allowing them to track changes in resource availability across space. For...
Full Text:
WILLIAM DEACY, WILLIAM LEACOCK, JONATHAN B. ARMSTRONG, AND JACK A. STANFORD.
2016. Kodiak brown bears
A key constraint faced by consumers is achieving a positive energy balance in the face of temporal variation in foraging opportunities. Recent work has shown that spatial heterogeneity in resource phenology can buffer mobile consumers from this constraint by allowing them to track changes in resource availability across space. For...
Full Text:
WILLIAM DEACY, WILLIAM LEACOCK, JONATHAN B. ARMSTRONG, AND JACK A. STANFORD.
2016. Kodiak brown bears
A key constraint faced by consumers is achieving a positive energy balance in the face of temporal variation in foraging opportunities. Recent work has shown that spatial heterogeneity in resource phenology can buffer mobile consumers from this constraint by allowing them to track changes in resource availability across space. For...
Full Text:
WILLIAM DEACY, WILLIAM LEACOCK, JONATHAN B. ARMSTRONG, AND JACK A. STANFORD.
2016. Kodiak brown bears
A key constraint faced by consumers is achieving a positive energy balance in the face of temporal variation in foraging opportunities. Recent work has shown that spatial heterogeneity in resource phenology can buffer mobile consumers from this constraint by allowing them to track changes in resource availability across space. For...
Full Text:
Kodiak brown bears surf the salmon red wave: direct evidence
The Douglas-fir needle midge can be a very destructive pest of
Douglas-fir. Infestation of new needles can be as high as 100 per-cent. Severe infestations can cause intolerable needle loss, and trees may take several years to recover. Needle loss is an especially serious problem in Christmas trees because of...
Published June 1991. 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
Published January 1973. A more recent revision exists. 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
Published January 1973. A newer revision exists. 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
CBT was first detected in North America during
1990 in southern British Columbia, Canada. The first
recorded U.S. contact was in far northwestern
Washington in February 1991. CBT distribution in
the Old World suggests that cold will not limit the
moth's range in Oregon. Warmer, drier areas may
inhibit its...
Published December 1963. 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
Fire performs many beneficial ecosystem functions in dry forests and rangelands across much
of North America. In the last century, however, the role of fire has been dramatically altered by numerous
anthropogenic factors acting as root causes of the current fire crisis, including widespread logging, road
building, fire suppression, habitat...
Home gardens produce the best yields when planted with vegetable varieties adapted to local growing conditions. These variety trials may assist market growers and home gardeners in choosing adapted varieties, based on qualities
that are important to them (such as appearance, earliness, flavor, yield, and disease resistance).
Home gardens produce the best yields when planted with
vegetable varieties adapted to local growing conditions.
These variety trials may assist market growers and home
gardeners in choosing adapted varieties, based on qualities
that are important to them (such as appearance, earliness,
flavor, yield, and disease resistance).
Carpenter ants are serious pests of buildings in Oregon, particularly west of the Cascade Mountains. Although they normally excavate in logs, stumps, and hollow trees, these ants become pests when they move indoors.
Published February 1992. 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
You will find the study of insects to be interesting and rewarding. This manual has been prepared to serve as a source of information concerning basic concepts in entomology. It will show you how to reach certain objectives and how to make and use equipment useful in learning about insects....
We model the evolution of eukaryotic protein-protein interaction (PPI) networks. In our model, PPI networks evolve by two known biological mechanisms: (1) Gene duplication, which is followed by rapid diversification of duplicate interactions. (2) Neofunctionalization, in which a mutation leads to a new interaction with some other protein. Since many...
The Applegate Fire Plan is a collaborative effort, hatched from an idea that was developed jointly by local citizens and federal agency folks in the Spring of 2001. Due to wide-spread participation throughout the Applegate Valley, general project coordination was organized by the Applegate Partnership, a non-profit communitybased group founded...
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Fall 1995
Volume 8, No. 3
College of Forestry
Oregon State University
George W. Brown
Dean