Premise of research. The lianoid habit is found in 125 extant plant families and is most diverse and abundant in structurally complex forests, such as tropical forests. A stem with lianoid anatomy is described from Cretaceous sediments of Hornby Island, British Columbia.
Methodology. The stem segment, 2.5 cm in diameter...
Native freshwater fish biodiversily is imperiled in Oregon with 36 species
or sub-species listed by the State of Oregon as sensitive, threatened, or endangered, and
9 species or sub-species listed as endangered or threatened under the federal
Endangered Species Act. Understanding and managing biodiversity is critical to its
conservation. Using...
Blooms of jellyfish around the world have been correlated with climatic variables related to environmental causes. Sizeable populations of large medusae, primarily Chrysaora fuscescens and Aequorea sp., appear annually in shelf waters of the Northeast Pacific Ocean. Previous research has shown that C. fuscescens is abundant seasonally in the inner...
Two separate investigations were carried out. The first experiment
on subterranean clover (Mr. Barker) was conducted in the field
and greenhouse on the Steiwer soil. The second experiment on alfalfa
(DuPuits) was conducted in the greenhouse on selected eastern Oregon
soils.
The purposes of the first experiment were to determine...
Fishery management production models tend to stress only the elements directly linked to fish (i.e. fish, fish food, and fish predators). Large coastal jellyfish are major consumers of plankton in heavily fished ecosystems; yet, they are frequently not included as model components. We explore the relationship between gulf menhaden (Brevoortia...
Full Text:
., Brodeur, R. D., and Sutor, M. Evaluating energy flows
through jellyfish and gulfmenhaden (Brevoortia
Bird-vegetation associations are a base for bird conservation and management, as well as for predictions of the effects of resource management and climate change on wildlife populations. A recent shift in forest management priorities from timber production to native species' habitat conservation on federal lands has emphasized the need to...
The death toll from AIDS continues to rise in the United States. As
of May 1, 1995, 441,528 cases of AIDS had been recorded in the U. S. One of
the most powerful ways to control the spread of this disease is prevention
education.
In 1988, Oregon passed OAR 581-22-412...
The life history of the fungus involved and the control for cherry
leaf spot was studied ever a two-year period. It was found that the
disease in Oregon is caused by the same fungus described in New York by
Higgins in 1914 as Coccomyces hiemalis and which was more recently...