Published May 1979. 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
Parameters of an econometric acreage response function were estimated for barley in the Northwest using pooled time-series and cross sectional data. Barley acreage was found to be significantly affected by the price of barley, the price of wheat and wheat acreage (a proxy for the "cross-planting" substitution component of government...
Published December 1983. 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
Eight species of Lathvrus (Fabaceae, Faboideae) endemic to the
Pacific Coast of North America were the subject of a systematic
investigation. Taxa studied included Lathvrus vestitus, Nutt. ex T.
& G., L. laetif lorus Greene, L.. iepsonii Greene, £,. splendens
Kellogg, L. polvphvllus, Nutt. ex T. & G., L. holochlorus...
Managers of forest and plantation ecosystems are encountering growing problems involving plant pathogens and the expanding geographic ranges of these pathogens. Historically unexposed stands are exceptionally vulnerable when a non-native pathogen is introduced because these pathogens can cause devastating disease in a host population that lacks co-evolved resistance mechanisms. One...
In the study of any developmental process, whether in plants, animals, or other models, it is prudent to consider the developmental position of the subjects being measured. This is generally not taken into consideration in grapevine studies despite a growing body of literature documenting that fruits within clusters develop and...
Conservation of Neotropical game species must take into account the livelihood and food security needs of local human populations. Hunting management decisions should therefore rely on abundance and distribution data that are as representative as possible of true population sizes and dynamics. We simultaneously applied a commonly used encounter-based method...
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Citation: Fragoso JMV, Levi T, Oliveira LFB, Luzar
JB, Overman
Reservoirs can have both positive and negative effects on differing fish species depending on the species concerned and reservoir morphology, flow regime, and basin location. We assessed the influence of limnological zones on the ichthyofauna of three large Neotropical reservoirs in two different river basins. We sampled fish through use...
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and consequently
on the chemical and physical features of rivers (Oliveira et
al., 2003; Britto and