GEOCHRONOLOGIC AND HF ISOTOPE CONSTRAINTS ON THE FORMATION AND EVOLUTION OF THE CLEARWATER AND SOUTHERN PRIEST RIVER COMPLEXES, NORTHERN IDAHO-EASTERN WASHINGTON

2016 ◽  
Author(s):  
Jeff D. Vervoort ◽  
◽  
Reed S. Lewis ◽  
Christopher M. Fisher ◽  
Julia A. Baldwin ◽  
...  
Keyword(s):  
Hf Isotope ◽  
Formation And Evolution ◽  
Northern Idaho ◽  
Eastern Washington

Learning Disabilities and other Attributes as Factors in Delinquent Activities among Adolescents in a Nonurban Area

1987 ◽  
Vol 60 (1) ◽  
pp. 327-334 ◽  
Author(s):  
Fran Trocinsky Fleener
Keyword(s):  
Learning Disabilities ◽  
Learning Disability ◽  
White Male ◽  
Learning Disabled ◽  
Mathematics Skills ◽  
Poor Families ◽  
Delinquent Activity ◽  
And Mathematics ◽  
Northern Idaho ◽  
Eastern Washington

62% of 50 adjudicated delinquents in the Palouse area of eastern Washington and northern Idaho showed learning disabilities when tested. Among the learning disabled and nonlearning disabled delinquents, there was no difference in kind or seriousness of delinquent activity. The typical delinquent of the nonurban Palouse area tends to be white, male and has a learning disability. His reading and mathematics skills are at least two years below grade. His family is large; his real parents are divorced. He comes from a poorer economic and cultural background than do the nondelinquents. This analysis suggests that the academic treatment of the learning disabled youngster should not be ignored as a factor in delinquency, especially in economically and culturally poor families.

Effects of tillage practices on pea leaf weevil (Sitona lineatus L., Coleoptera: Curculionidae) biology and crop damage: A farm-scale study in the US Pacific Northwest

2012 ◽  
Vol 102 (6) ◽  
pp. 682-691 ◽  
Author(s):  
R.P. Hanavan ◽  
N.A. Bosque-Pérez
Keyword(s):  
Large Scale ◽  
Adult Emergence ◽  
Conventional Tillage ◽  
Crop Damage ◽  
Growth Stages ◽  
No Tillage ◽  
Feeding Damage ◽  
Northern Idaho ◽  
Eastern Washington ◽  
Pea Leaf Weevil

AbstractThe pea leaf weevil, Sitona lineatus L., is periodically a significant pest of pea, Pisum sativum L., in the Palouse region of northern Idaho and eastern Washington, USA. Previous on-station research demonstrated significantly greater adult pea leaf weevil colonization, immature survival, adult emergence and plant damage in conventional-tillage compared to no-tillage plots of pea. In experiments conducted during the 2006 and 2007 growing seasons, aerial and ground adult pea leaf weevil colonization of large-scale commercial pea fields under different tillage regimes in northern Idaho and eastern Washington was examined for the first time. Initial pea leaf weevil feeding damage, immature weevil densities and subsequent adult emergence from the fields were also assessed. During both years, significantly more adult pea leaf weevils were captured in conventional-tillage than in no-tillage fields during the crop establishment period in May. No-tillage soils remained wet longer in the spring and could not be planted by growers until later than conventional-tillage fields. Pea planted under conventional-tillage emerged earlier and had significantly greater feeding damage by the pea leaf weevil than no-tillage pea. Significantly, greater immature pea leaf weevil densities and subsequent adult emergence were observed in conventional-tillage than in no-tillage pea fields. Delayed development of root nodules in the cooler, moister conditions of no-tillage pea fields likely resulted in escape from attack and injury during the critical growth stages that ultimately influence yield. Results indicate that large-scale commercial no-tillage pea fields are less suitable for colonization and survival of the pea leaf weevil and suffer less weevil damage than fields under conventional tillage.

Clonal diversity within and among introduced populations of the apomictic vine Bryonia alba (Cucurbitaceae)

2000 ◽  
Vol 78 (11) ◽  
pp. 1469-1481 ◽  
Author(s):  
Stephen J Novak ◽  
Richard N Mack
Keyword(s):  
United States ◽  
Clonal Diversity ◽  
Western Montana ◽  
Western United States ◽  
Single Population ◽  
Multiple Introductions ◽  
Introduced Populations ◽  
Northern Utah ◽  
Northern Idaho ◽  
Eastern Washington

Bryonia alba L. (Cucurbitaceae) is a herbaceous Eurasian vine that predominantly reproduces clonally (asexually) through apomixis. We assessed the magnitude and distribution of clonal diversity within and among 23 recently established populations of B. alba in its new range in the western United States, based on the distribution of multilocus isozyme genotypes. Fifty-two unique clones were detected: 30 in the nine populations from eastern Washington and northern Idaho, and the remaining 22 in 14 populations from western Montana, northern Utah, and southern Idaho. On average, each population of B. alba was composed of 6.4 clones, and the proportion of distinguishable clones was 0.275. Multilocus diversity (D) was 0.632 and multilocus evenness (E) was 0.556. Twenty-six of 52 clones (50%) were restricted to a single population, and, on average, each clone occurred in 2.83 populations. Compared with other clonally reproducing plant species, this vine possesses moderate to high levels of clonal diversity in its new range in the western United States. This diversity appears to be a consequence of the events associated with its introduction (including multiple introductions), founder effects, and the proportion of sexual to apomictic reproduction within populations.Key words: invasive vine, apomixis, multilocus genotypes, clonal diversity and evenness, Bryonia alba, Cucurbitaceae.

scholarly journals Preliminary structure contour maps on the top of the Grande Ronde and Wanapum basalts, eastern Washington and northern Idaho

1979 ◽  
Author(s):  
Donald A. Swanson ◽  
J.C. Brown ◽  
J.L. Anderson ◽  
R.D. Bentley ◽  
G.R. Byerly ◽  
...  
Keyword(s):  
Contour Maps ◽  
Northern Idaho ◽  
Eastern Washington

Widespread Occurrence of Herbicide-Resistant Italian Ryegrass (Lolium multiflorum) in Northern Idaho and Eastern Washington

2010 ◽  
Vol 24 (3) ◽  
pp. 281-288 ◽  
Author(s):  
Traci A. Rauch ◽  
Donald C. Thill ◽  
Seth A. Gersdorf ◽  
William J. Price
Keyword(s):  
Pacific Northwest ◽  
Cropping Systems ◽  
Lolium Multiflorum ◽  
Acetolactate Synthase ◽  
Italian Ryegrass ◽  
Cross Resistance ◽  
Herbicide Resistant ◽  
Group 2 ◽  
Northern Idaho ◽  
Eastern Washington

Persistent use of herbicides has resulted in the selection of many herbicide-resistant weeds worldwide. A survey of 75 fields in the Palouse region of the inland Pacific Northwest was conducted to determine the extent of Italian ryegrass resistance to grass herbicides commonly used in winter wheat-cropping systems. Plants grown from collected seed samples were tested for resistance to diclofop, clodinafop, quizalofop, tralkoxydim, sethoxydim, clethodim, pinoxaden, triasulfuron, mesosulfuron, flucarbazone, imazamox, and flufenacet/metribuzin. Averaged across herbicide families within a herbicide group, some level of resistance was exhibited in 73, 31, and 31% of the populations to the aryloxyphenoxypropionates, cyclohexanediones, and phenylpyrazoline herbicides, respectively, and 39, 53, and 55% of the populations to the sulfonylureas, sulfonylaminocarbonyltriazolinone, and imidazolinone herbicides, respectively. Twelve percent of the populations showed some level of resistance to flufenacet/metribuzin. Cross-resistance to all acetyl coenzyme A carboxylase-inhibiting (group 1) herbicides was observed in 12% of the populations, whereas 25% of the populations were cross-resistant to all acetolactate synthase-inhibiting (group 2) herbicides tested. Of all the populations tested, 7% exhibited multiple resistance to at least one herbicide within all three groups tested. Only 5% of populations were completely susceptible to all 12 herbicides tested. These results indicate that herbicide-resistant Italian ryegrass populations are now common across much of the Palouse region in northern Idaho and eastern Washington.

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