Digital Commons Network^™

It's Conflict All The Way Down, Michael Fischl

Faculty Articles and Papers

No abstract provided.

Do We Need A Beanie Baby Fraud Statute?, Ellen S. Podgor

Faculty Publications By Year

No abstract provided.

Seroprevalence Of Toxoplasmosis Gondii In Sheep In Yozgat, Turkey, Cahi̇t Babür, Berri̇n Esen, Gülay Vural

Turkish Journal of Veterinary & Animal Sciences

The sera collected from 152 sheep older than one year old sheep in various parts of Yozgat Province were tested for Toxoplasma gondii antibodies using the Sabin- Feldman dye test. Out of the 152 sera examined, 69 (45.4%) were seropositive at different dilutions (34 samples at 1/16, 21 at 1/64, 11 at 1/256 and 3 at 1/1024).

A Study On Direct And Indirect Effects Of Some Factors On Weaning Weight Of A Awassi Lambs, Mehmet Topal, Nuri̇ni̇sa Esenbuğa

Turkish Journal of Veterinary & Animal Sciences

The correlation coefficients divided into direct and indirect effects among ewe weight in the mating period and lambing, birth weight and weaning age of lamb, and weaning weight of Awassi lambs raised in Erzurum conditions were determined in this study. In path analysis, the direct and indirect impact of birth weight and weaning age of lamb on weaning weight were found to be highly significant. Partial correlation and standardized partial regression coefficients among weaning weight, birth weight and weaning age of lamb were also observed to be highly significant.

Causation In Toxic Tort Litigation: Which Way Do We Go, Judge, Laurie Alberts

Villanova Environmental Law Journal (1991 - )

No abstract provided.

Predation Risk And Elk-Aspen Foraging Patterns, C.A. White, M.C. Feller

Aspen Bibliography

Elk-aspen foraging patterns may be influenced by cover type, distance from roads or trails, the type of user on road or trail (park visitor, human hunter, or predator), and two general states of aspen condition (open-grown or thicket). Pellet group and browse utilization transects in the Canadian Rockies showed that elk were attracted to roads used by park visitors and avoided by wolves, and that elk possibly avoided aspen and conifer patches near backcountry trails used by wolves. In high predation risk landscapes, aspen stands were dense, lightly browsed, and rarely entered by elk. As risk decreased, elk density and …

Aspen Restoration In The Blue Mountains Of Northeast Oregon, D.M. Shirley, V. Erickson

Aspen Bibliography

No abstract provided.

Predicting Nest Success From Habitat Features In Aspen Forests Of The Central Rocky Mountains, H.M. Struempf, D.M. Finch, G. Hayward, S. Anderson

Aspen Bibliography

We collected nesting data on bird use of aspen stands in the Routt and Medicine Bow National Forests between 1987 and 1989. We found active nest sites of 28 species of small nongame birds on nine study plots in undisturbed aspen forests. We compared logistic regression models predicting nest success (at least one nestling) from nest-site or stand-level habitat predictors. Most common species used nest sites in aspen trees in forest interior locations (distance to edge >100 m), with dense trees (opening >100 m away) despite no apparent positive correlation with use of these habitat features and nest success rates. …

The Effect Of Aspen Wood Characteristics And Properties On Utilization, Kurt H. Mackes, Dennis L. Lynch

Aspen Bibliography

This paper reviews characteristics and properties of aspen wood, including anatomical structure and characteristics, moisture and shrinkage properties, weight and specific gravity, mechanical properties, and processing characteristics. Uses of aspen are evaluated: sawn and veneer products, composite panels, pulp, excelsior, post and poles, animal bedding, animal food supplements, fuel applications, and novelties. Aspen is a preferred species for paneling, veneer products including matchsticks and chopsticks, waferboard and oriented strandboard (OSB), fiberboard, pulp, excelsior, research animal bedding, animal food supplements, and tourist or gift items.

Aspen Fencing In Northern Arizona: A 15-Year Perspective, James M. Rolf

Aspen Bibliography

Aspen clearcuts in the 1960s and 1970s on the Peaks Ranger District of the Coconino National Forest in northern Arizona failed to regenerate successfully because of browsing primarily by elk. Since 1985, over 400 acres have been successfully regenerated using fencing of various designs to exclude elk. The expense and visual impact of establishing and maintaining over 20 miles of fence along with continued damage to aspen greater than 3.0 inches d.b.h. outside the fenced areas have resulted in the Arizona Game and Fish Department increasing the elk hunting permits by 400% in an effort to reduce the elk herd …

Aspen's Ecological Role In The West, William H. Romme, Lisa Floyd-Hanna, David D. Hanna, Elisabeth Bartlett

Aspen Bibliography

Aspen exhibits a variety of ecological roles. In southern Colorado, the 1880 landscape mosaic contained a range of stand ages, of which half were >70 years old and half were younger. Pure aspen stands in southern Colorado are widespread and may result from previous short fire intervals that eliminated local conifer seed sources. Aspen regeneration in northern Yellowstone Park is controlled by ungulate browsing pressure and fire, so it has been limited since 1920. However, an episode of aspen seedling establishment occurred after the 1988 fires. We urgently need additional detailed, local case studies of aspen ecology to inform management …

Do Pine Trees In Aspen Stands Increase Bird Diversity, Mark A. Rumble, Todd R. Mills, Brian L. Dystra, Lester D. Flake

Aspen Bibliography

In the Black Hills of South Dakota, quaking aspen (Populus tremuloides) is being replaced by conifers through fire suppression and successional processes. Al- though the Black Hills National forest is removing conifers (primarily ponderosa pine [Pinus ponderosa])toincreasetheaspencommunitiesinsomemixedstands,ForestPlan guidelines allow four conifers per hectare to remain to increase diversity in the remaining aspen stand. We compared bird species richness in pure ponderosa pine, mixed stands dominated by ponderosa pine with quaking aspen, mixed stands dominated by aspen

with ponderosa pine, and pure aspen stands. Stands dominated by ponderosa pine had lower (P

Landscape Dynamics Of Aspen And Conifer Forests, D.L. Bartos

Aspen Bibliography

No abstract provided.

Persistence Of Aspen Regeneration Near The National Elk Refuge And Gros Ventre Valley Elk Feedgrounds Of Wyoming, D.T. Barnett, T.J. Stohlgren

Aspen Bibliography

We investigated aspen (Populus tremuloides) regeneration in the Gros Ventre River Valley, the National Elk Refuge, and a small part of Grand Teton National Park, Wyoming, to see if elk (Cervus elaphus) browsing was as damaging as previously thought. We conducted a landscape-scale survey to assess aspen regeneration across gradients of wintering elk concentrations using 68 randomly selected aspen stands in the 1,090 km2 study area. Forty-four percent of the stands sampled supported regeneration of saplings (stems greater than 2 m in height but less than 10 cm in diameter). There were no significant differences of regeneration across elk winter …

Aspen Ecosystems: Objectives For Sustaining Biodiversity, R.B. Campbell, D.L. Bartos

Aspen Bibliography

Recognizing the historical abundance of major vegetation cover types is the foundation for estimating the magnitude and significance of conversion from one cover type to another and the proportion of existing cover types that are in properly functioning condition. Techniques to determine desired conditions are discussed. Existing situations for the need to treat ecosystems where aspen (Populus tremuloides Michx.) occur are prioritized: highest—mixed-conifer with aspen but where conifers comprise greater than 50% of the canopy; high—aspen/sagebrush transition; and moderate—aspen dominated landscapes. Though aspen stands are evaluated, aspen landscapes are discussed in the context of aggregations of many stands. Within …

Ecology And Management Of Aspen: A Lake States Perspective, D.T. Cleland, L.A. Leefers, D.I. Dickmann, L.G. Eskew

Aspen Bibliography

Aspen has been an ecologically important, though relatively minor, compo- nent of the Lake States (Michigan, Wisconsin, and Minnesota) forests for millennia. General Land Office records from the 1800s indicate that aspen comprised a small fraction of the region’s eastern forests, but was more extensive on the western edge. Then Euro-American settlement in the 1800s brought land clearing, timber harvesting, and subsequent widespread wildfires that increased aspen-birch acreages consider- ably. Although aspen-birch acreage has declined since the 1930s, it remains the region’s second most prevalent forest type. Aspen management is probably the most contentious issue confronting forest managers in the …

Aspen Response To Prescribed Fire And Wild Ungulate Herbivory, Steve Kilpatrick, Diane Abendroth

Aspen Bibliography

No abstract provided.

Quaking Aspen Reproduce From Seed After Wildfire In The Mountains Of Southeastern Arizona, Ronald D. Quinn, Lin Wu

Aspen Bibliography

Quaking aspen regenerated from seed after a stand replacement wildfire in the Chiricahua Mountains of southeastern Arizona. The wildfire had created gaps in the canopy so that aspen were able to establish from seed. Seedlings were found at a mean density of 0.17 m–2, 30 m or more from the nearest potential seed trees. Six clumps of aspen seedlings contained 18–186 trees, occupying areas of 145–500 square meters at densities of 0.09-0.27 m–2. White-tailed deer (Odocoileus virginianus) browsed 14.3% of the seedlings. Occasional sexual reproduction of aspen may be a general trait of the species throughout the western portion of …

Multiple Factors Affect Aspen Regeneration On The Uncompahgre Plateau, West-Central Colorado, Barry C. Johnston

Aspen Bibliography

In 1996, I inventoried over 90 aspen stands in 12 timber sales that had been clearcut >3 years previously. Units that regenerated adequately were larger, had higher slope angles, and had soils with a thick Mollic surface layer. Units that regenerated inadequately often had plant species that indicated high water tables. The factors associated with inadequate regeneration were high water tables, heavy browsing, soils with a thin Mollic surface layer, and logging practices that compact large portions of the unit. One of these factors alone often does not lead to inadequate aspen sprouting. Most often, inadequately regenerated aspen stands have …

Landscape-Scale Dynamics Of Aspen In Rocky Mountain National Park, Colorado, Margot W. Kaye, Kuni Suzuki, Dan Binkley, Thomas J. Stohlgren

Aspen Bibliography

Past studies of quaking aspen in Rocky Mountain National Park suggested that the aspen population is declining due to intensive browsing by elk (Cervus elaphus). These studies were conducted in the elk winter range, an area of intensive elk impact. The elk summer range experiences less intense grazing pressure. We tested the hypothesis that impacts of elk would be greater in the elk winter range than the summer range with landscape-scale data from the Park. The detrimental effects of elk on aspen are highly localized and, at larger spatial scales, elk browsing does not seem to be influencing the aspen …

Manipulations To Regenerate Aspen Ecosystems, Wayne D. Shepperd

Aspen Bibliography

Vegetative regeneration of aspen can be initiated through manipulations that provide hormonal stimulation, proper growth environment, and sucker protec- tion—the three elements of the aspen regeneration triangle. The correct course of action depends upon a careful evaluation of the size, vigor, age, and successional status of the existing clone. Soils and site productivity, competition from other plants, and the potential impact of browsing animals upon new regeneration should also be consid- ered. Treatments may include doing nothing, commercial harvest, prescribed fire, mechanical root stimulation, removal of competing vegetation, protection of regenera- tion from herbivory, and in limited circumstances, regenerating aspen …

Long-Term Aspen Exclosures In The Yellowstone Ecosystem, Charles E. Kay

Aspen Bibliography

Aspen has been declining in the Yellowstone Ecosystem for more than 80 years. Some authors have suggested that aspen is a marginal plant community in Yellowstone and that recent climatic variation has adversely affected aspen, while others contend that excessive browsing by native ungulates is primarily responsible for aspen’s widespread decline. To test these hypotheses, I measured all the long-term aspen exclosures (n = 14) in the Yellowstone Ecosystem. Aspen stands inside all exclosures successfully produced new stems greater than 2 m tall without fire or other disturbance, while few outside stands successfully regenerated due to repeated browsing. Understory species …

Aspen Overstory Recruitment In Northern Yellowstone National Park During The Last 200 Years, Eric J. Larsen, William J. Ripple

Aspen Bibliography

Using a monograph provided by Warren (1926) and two sets of aspen increment cores collected in 1997 and 1998, we analyzed aspen overstory recruitment in Yellowstone National Park (YNP) over the past 200 years. We found that successful aspen overstory recruitment occurred on the northern range of YNP from the middle to late 1700s until the 1920s, after which it essentially ceased. We hypothesized why the browsing influence of Rocky Mountain elk (Cervus elaphus) may be different now than it was historically. At a landscape scale, elk hunting outside YNP may be a significant factor changing elk foraging behavior. At …

Evaluation Of Burned Aspen Communities In Jackson Hole, Wyoming, Charles E. Kay

Aspen Bibliography

Aspen has been declining in Jackson Hole for many years, a condition generally attributed to the fact that lightning fires have been aggressively suppressed since the early 1900s. It is also believed that burning will successfully regenerate aspen stands despite high elk numbers. To test this hypothesis, I evaluated 467 burned and 495 adjacent, unburned aspen stands at eight different locations within Jackson Hole. Aspen suckering was stimulated by burning, but most aspen stands still failed to produce new stems greater than 2 m tall where ungulate use was moderate or high. Only when elk use was low were burned …

Sustaining Aspen In Western Landscapes: Symposium Proceedings, Wayne D. Shepperd, Dan Binkley, Dale L. Bartos, Thomas J. Stohlgren, Lane G. Eskew

Aspen Bibliography

No abstract provided.

Web Of Manipulation: The Learned Intermediary Doctrine And Direct-To-Consumer Advertising On The World Wide Web, 35 J. Marshall L. Rev. 97 (2001), April L. Foreman

UIC Law Review

No abstract provided.

A Comparative Analysis Of United States And Colombian Tort Law: Duty, Breach, And Damages, M. Stuart Madden

Elisabeth Haub School of Law Faculty Publications

No abstract provided.

Conceiving The Word: Patristic And Early Medieval Sources For Franciscan Discussion Of Mary's Active Motherhood, James Rodger Bell

Marian Studies

No abstract provided.

The Marian Spirituality Of The Medieval Religious Orders: Devotion To Mary Among The Dominicans In The Thirteenth Century, Denis Vincent Wiseman

Marian Studies

No abstract provided.

Fisheries Occasional Publication No. 31 - Feeding Lupins To Fish: A Review Of The Nutritional And Biological Value Of Lupins In Aquaculture Feeds, Brett Glencross

Fisheries Occasional Publications

Lupins are the harvested seed of species from the Lupinus genus, a group within the leguminous bean and pea family Fabaceae. Legumes are particularly valuable agricultural crops because of their capacity to provide a grain crop and also fix and return nitrogen to soils and improve the soil value for further cropping. The oilseeds, soybeans and peanuts are also leguminous plants, though traditionally they have been cropped for their oil value, whereas lupins, are cropped for both their protein and nitrogen fixing value (Gladstones, 1998; Perry et al., 1998).

The three key commercial species of lupins are L. angustifolius (Narrow-leafed …