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751 - 775 of 1229 Items << < 26 27 28 29 30 31 32 33 34 35 > >>
751 - 775 of 1229 Items << < 26 27 28 29 30 31 32 33 34 35 > >>
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Marine scientists and policymakers are encouraging ecosystem-based fishery management (EBFM), but there is limited guidance on how to operationalize the concept. We develop a method for EBFM based on financial asset management that uses the joint...
2006-11 (iso8601)
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Evaluations of previously established field trials indicate that
chioropicrin, and Vorlex continue to provide protection to Douglas-fir poles,
although the degree of protection is diminishing. Reapplication of Vapam 18
years after the initial...
1990-08 (iso8601)
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The effects of fire severity on post-fire succession and shrub demography were
quantified in shrub-steppe grasslands and subalpine forests in the Hells Canyon of the
Payette National Forest, Idaho. Following the 1988 Eagle Bar Fire, species...
1995-01-27 (iso8601)
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Phytophthora borealis and Phytophthora riparia, identified in recent Phytophthora surveys of forest streams in Oregon, California and Alaska, are described as new species in Phytophthora ITS Glade 6. They are similar in growth form and morphology...
2012-09 (iso8601)
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Recent work in machine learning concerns the detection and identification of bird
species from audio recordings of their vocalizations. Such analysis can yield valuable
ecological information concerning the activity and distribution of species in...
2012-05-30 (iso8601)
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For decades, the bio-duck sound has been recorded in the Southern Ocean,
but the animal producing it has remained a mystery. Heard mainly during
austral winter in the Southern Ocean, this ubiquitous sound has been
recorded in Antarctic waters and...
2014-04 (iso8601)
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New alloys containing refractory metals have been developed
by the aero-space industry to meet the demand for thermally resistant
materials. The chemical analysis of these alloys has been
handled successfully by the use of ion exchange....
1965-03-30 (iso8601)
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Slender false-brome is a perennial grass species native
to Europe, Asia, and North Africa. The species has
exceptionally wide distribution, occupying forested and open
areas at a variety of aspects and elevations. Populations are known
in riparian...
2008-09 (iso8601)
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The 13 species of shrimps studied for this thesis were collected
off the Oregon coast. The family Oplophoridae is well represented
in this area. Five of the seven known genera were identified.
Hymenodora frontalis, H. glacialis, and H. gracilis...
1965-08-03 (iso8601)
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ORNHIC maintains extensive databases of Oregon biodiversity, concentrating on rare and endangered plants, animals and ecosystems. The program is managed by OSU, but has been a
cooperative project, with significant support from The Department of...
2007-03 (iso8601)
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This report describes the relationship of incising-induced strength loss in bending as a function of preservative treatment and incising pattern, density, and depth of penetration for various machine stress-rated (MSR) grades of full-size 2 by 4...
1998-04 (iso8601)
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Evaluations of previously established field trials indicate that
chioropicrin, and Vorlex continue to provide protection to Douglas-fir poles,
although the degree of protection is diminishing. Reapplication of Vapam 18
years after the initial...
1989 (iso8601)
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The distribution and geographic range of Greater Sage-Grouse (Centrocercus urophasianus) have been reduced by 56% since European settlement. Although loss and fragmentation of sagebrush (Artemisia spp.) habitats have been cited as the primary...
2011 (iso8601)
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The ecology of netleaf hackberry (Celtis reticulata Torr.) is poorly known
throughout its broad western range. To gain some understanding of the species' basic
ecology, three components of its life history were studied. First, seed germination...
1992-11-23 (iso8601)
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Mining and smelting activities on the South Fork of the Coeur d'Alene River in northern Idaho since 1885 have contributed massive amounts of metals-rich tailings to the river. Recent environmental studies have generally demonstrated an improved...
1990-09-01
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Intensive stream surveys were conducted on Maui and Kauai in Hawaiian island streams during October 1979 through 1982 to investigate whether the presence of predaceous eleotrids in terminal reaches of low-gradient streams excluded the rare goby,...
2008-07-17
2008-07-17 1982-10-01 |
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Multispecies fisheries pose a considerable management difficulty with respect to quota allocation between species. The applicability is to single vessel and its individual quotas, as well as to the fleet as a whole. Negative externalities may be...
2014-07-07 (iso8601)
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Only portions of issues of The Water Report are available in the Klamath Waters Digital Library. See the full report at http://www.thewaterreport.com/
2004-10-15
2008-07-23 2006-06-13 |
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ABSTRACT Surface-water-quality conditions were assessed in the Yakima River Basin, which drains 6,155 square miles of mostly forested, range, and agricultural land in Washington. The Yakima River Basin is one of the most intensively farmed and...
1999-09-21
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The embryonic and larval stages of the long-toed salamander,
Ambystoma macrodactylum are described from fertilization through
the development of five toes on the posterior limbs. New stage numbers
are employed in the description of the hind limb....
1966-02-11 (iso8601)
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The study involves the establishment, management, and behavioral
observations of Nomia melanderi Cockerell and Megachile rotundata
(Fabricius) in California, a survey of native bees within western Fresno
County, a determination of selfing and/or...
1966-01-10 (iso8601)
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Based on the number of velar tentacles and the form of longitudinal
lingual laminae found in Lampetra (Entosphenus) t. tridentata
and its closely related forms, the taxon Entosphenus should not be
considered as a genus as commonly adopted, but,...
1975-01-03 (iso8601)
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