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2004

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Articles 12031 - 12060 of 13903

Full-Text Articles in Social and Behavioral Sciences

Could The Area-Sensitivity Of Some Grassland Birds Be Affected By Landscape Composition?, David Joseph Horn, Rolf R. Koford Jan 2004

Could The Area-Sensitivity Of Some Grassland Birds Be Affected By Landscape Composition?, David Joseph Horn, Rolf R. Koford

Proceedings of the North American Prairie Conferences

Several grassland bird species have been shown to be area sensitive. This area sensitivity occurs when a species' frequency of occurrence, or relative abundance, tends to be lower in smaller fields. The detection of area sensitivity, however, is not consistent among studies because a species may exhibit area sensitivity in one study, but not in another. We tested the hypothesis that a species' area sensitivity varies depending on the amount of grassland in the landscape. The study took place in central North Dakota during the 1996 and 1997 breeding seasons on 46 fields enrolled in the Conservation Reserve Program (CRP). …

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Potential Habitat Factors Influencing Carrion Beetles Communities Of Palouse Prairie Remnants, Chris Looney, Benjamin T. Caldwell, Timothy D. Hatten, Christopher Lorion, Sanford D. Eigenbrode Jan 2004

Potential Habitat Factors Influencing Carrion Beetles Communities Of Palouse Prairie Remnants, Chris Looney, Benjamin T. Caldwell, Timothy D. Hatten, Christopher Lorion, Sanford D. Eigenbrode

Proceedings of the North American Prairie Conferences

The bunchgrass prairies of the Palouse region in eastern Washington state and adjacent Idaho were almost completely converted to agriculture in the past century. Today, prairie habitat exists only on small remnants scattered across the landscape. The invertebrate fauna of these habitat remnants is poorly known, both in terms of species diversity and community composition. Pitfall traps baited with carrion were used to sample carrion beetles (Coleoptera: Silphidae) during June and July of 2003. Prairie remnants were selected based on size to test whether habitat area influenced the diversity of this important insect community. Three size classes were identified; greater …

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Adapting A Floral Biogeography Model To Prairie-Dependent Lepidoptera, Eric H. Metzler, John A. Shuey, Leslie A. Ferge, Richard A, Henderson, Paul Z. Goldstein Jan 2004

Adapting A Floral Biogeography Model To Prairie-Dependent Lepidoptera, Eric H. Metzler, John A. Shuey, Leslie A. Ferge, Richard A, Henderson, Paul Z. Goldstein

Proceedings of the North American Prairie Conferences

Analysis of data collected for a study of prairie dependent Lepidoptera in the northern tallgrass prairies showed four distributional patterns. A logical distributional pattern links species' distribution, i.e. Catocala abbreviatella, to larval host plants. Absence of larval host plant data, which is the case for most species of moths, requires inference based on habitat data of known specimens, i.e. Tarachidia binocula, or in the case of infrequently encountered species, i.e. Crambus murellus, capture data for a limited number of specimens. A fourth distributional pattern, i. e. Atrytone arogos, can be explained by hypotheses which explain the …

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Freshwater Mussels (Bivalvia: Unionidae) In The Cajun Prairie Ecosystem In Southwestern Louisiana, Malcom F. Vidrine, Gail J. Quillman-Vidrine, Malcolm F. Vidrine Ii, Daniel J. Vidrine, Caroline E. Vidrine Jan 2004

Freshwater Mussels (Bivalvia: Unionidae) In The Cajun Prairie Ecosystem In Southwestern Louisiana, Malcom F. Vidrine, Gail J. Quillman-Vidrine, Malcolm F. Vidrine Ii, Daniel J. Vidrine, Caroline E. Vidrine

Proceedings of the North American Prairie Conferences

Freshwater mussels (Bivalvia: Unionidae) once cobbled the stream bottoms in the Cajun Prairie ecosystem in south-western Louisiana. The development of canal systems for aboveground irrigation of rice fields during the last century provided additional habitat-often the canals were likewise cobbled with mussels that formed diverse communities. This paper introduces the 31 known species, their general ecology and their distributions. These mussels develop a 'reef'-like benthic community that is home to a variety of plants and animals as parasites and haptobenthos. Freshwater mussels are on the decline numerically as well as in diversity as a result of human activity, namely loss …

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Prairie Fen Preserved In An Urban Environment, Tyler Bassett Jan 2004

Prairie Fen Preserved In An Urban Environment, Tyler Bassett

Proceedings of the North American Prairie Conferences

Prairie fens are a rare, fire-dependent wetland type found only in the glaciated Midwest in ice-contact topography along streams or lake boundaries that historically occurred adjacent to prairies and savannas. Due to a strong dependence on cool, alkaline groundwater seepage, they are extremely sensitive to hydrological alterations that result from urban development. While prairie fens are common in glacial interlobate regions, it was still surprising to discover one while conducting a botanical inventory in 2001 in an urban development in Kalamazoo, Michigan. The 295-acre planned unit development (PUD), known as Parkview Hills, is bordered by medium-density residential neighborhoods, a major …

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Conservation Efforts And Natural History Of A Prairie Habitat At Jennings Environmental Education Center, Pennsylvania, Bruno Borsari, David Johnson, Wil Taylor, Valentine Kefeli Jan 2004

Conservation Efforts And Natural History Of A Prairie Habitat At Jennings Environmental Education Center, Pennsylvania, Bruno Borsari, David Johnson, Wil Taylor, Valentine Kefeli

Proceedings of the North American Prairie Conferences

The habitat consideted in this study is a 19.8-acre (8.0-hectare) prairie relict, which is part of the 296-acre (120-hectare) park (Jennings Environmental Education Center), and it is located in northwest Pennsylvania (Butler County). This prairie remnant is one of the easternmost existing relicts of the once widespread post-glacial prairies. The focus of this paper is to present an overview of the natural history of the Jennings Prairie with emphasis on preservation practices that have occurred since its discovery, in 1905, and management approaches aimed at the conservation of this habitat. The maintenance of its 225 native plant species requires human …

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Ecological Restoration As A Strategic Framework For Invasive Species Management Planning: The University Of Wisconsin Experience, Steve Glass Jan 2004

Ecological Restoration As A Strategic Framework For Invasive Species Management Planning: The University Of Wisconsin Experience, Steve Glass

Proceedings of the North American Prairie Conferences

The UW-Madison Arboretum uses an evolving, strategic approach to invasive species management that aims to develop comprehensive, integrated protocols for removing pest plants and subsequently replacing them with appropriate native species. We seek to provide managers with the decision,making tools to develop appropriate tactics to encourage native plants and discourage pest plants. This approach relies upon: 1) a rigorous invasive species risk assessment that yields an action priority ranking matrix; and 2) invasive species management conducted within an ecological restoration framework; and 3) incorporation of research findings into management actions in an adaptive management feedback loop. I use Phalaris arundinacea …

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Using Cattle To Reduce Oak Savanna Understory Shrub Abundance: Stocking Rates And Weight Gains, Janet L. Hedtcke, Joshua L. Posner, Martha Rosemeyer Jan 2004

Using Cattle To Reduce Oak Savanna Understory Shrub Abundance: Stocking Rates And Weight Gains, Janet L. Hedtcke, Joshua L. Posner, Martha Rosemeyer

Proceedings of the North American Prairie Conferences

Oak (Quercus spp.) savanna, characterized by widely scattered oaks with an understory of prairie and other specialized species, is one of the most endangered native ecosystems in North America (Nuzzo 1986, Packard and MuteI 1997). The absence of grazing and burning along with the introduction of tillage agriculture are key factors for the loss of this ecosystem. Our objective was to determine the effectiveness of rotational grazing to reduce the shrub layer in degraded oak savannas. This study took place at three sites in southwestern Wisconsin. In this paper, we report on the results of the savanna grazing on …

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Soil Chemistry Properties Under Two Different Management Practices: Clipped Saint Augustine Grass Lawn And Annually Burned Cajun Prairie, Domingo M. Jariel, Malcolm F. Vidrine, Nicole Bordelon, Janeel Al-Dujaili Jan 2004

Soil Chemistry Properties Under Two Different Management Practices: Clipped Saint Augustine Grass Lawn And Annually Burned Cajun Prairie, Domingo M. Jariel, Malcolm F. Vidrine, Nicole Bordelon, Janeel Al-Dujaili

Proceedings of the North American Prairie Conferences

Prescribed burning every two or more years is the recommended management practice to remove unnecessary invasive plants and to enhance the regrowth of desirable plants for the development of a fire-dependent plant community native to southwestern Louisiana. A portion of Saint Augustine grass lawn at Louisiana State University at Eunice (LSUE) was converted into a Cajun Prairie restoration plot in 1989. Since 1991, the adjacent lawn has been clipped weekly, whereas the prairie has been burned every January. The objective of this study was to determine the soil chemical properties of clipped lawn and burned prairie plots. Each plot (12 …

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Ecological Restoration-Based Education Transforms Schoolgrounds And Education, Libby Mccann, Todd Miller Jan 2004

Ecological Restoration-Based Education Transforms Schoolgrounds And Education, Libby Mccann, Todd Miller

Proceedings of the North American Prairie Conferences

The University of Wisconsin- Madison Arboretum, home to the world's first prairie restoration, has a threefold mission to conserve and restore Arboretum lands, advance the science of restoration ecology, and foster the Land Ethic. Since 1991 , teams of teachers from more than 150 schools in Wisconsin have learned to incorporate ecological restoration into the curriculum through the Earth Partnership for Schools Program. This multi-disciplinary teacher professional development program emphasizes inquiry-based learning and multiple intelligences in a hands-on, collaborative setting. The majority of schools have focused their efforts on prairies. Recreating or restoring an ecological community on school grounds provides …

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Grazing Intensity Effects On Vegetation, Livestock And Non-Game Birds In North Dakota Mixed-Grass Prairie, Eric D. Salo, Kenneth F. Higgins, Bob D. Patton, Kristel K. Bakker, William T. Barker, Brian Kreft, Paul E. Nyren Jan 2004

Grazing Intensity Effects On Vegetation, Livestock And Non-Game Birds In North Dakota Mixed-Grass Prairie, Eric D. Salo, Kenneth F. Higgins, Bob D. Patton, Kristel K. Bakker, William T. Barker, Brian Kreft, Paul E. Nyren

Proceedings of the North American Prairie Conferences

We conducted studies in native prairie mixed-grass pastures in south~central North Dakota (U.S.A.) during 1989- 2003 to determine how different grazing intensities affected structural characteristics of vegetation, livestock production and the occurrence and density of grassland birds. Generally, as grazing treatment intensity increased from light to extreme, mean vegetation structural values decreased for visual obstruction readings, tallest plants of grasses, forbs, and shrubs, and litter depth. Nineteen species of non-game birds were detected during 2001 and 2002. Overall breeding bird densities were negatively affected by increasing levels of grazing intensity in mixed-grass prairie. Claycolored sparrows (Spizella pallida), grasshopper …

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Temporal Effects Of Grazing Regimes On Non-Game Birds In North Dakota Grasslands, Eric D. Salo, Kenneth F. Higgins, William T. Barker, Kristel K. Bakker, Kent C. Jensen Jan 2004

Temporal Effects Of Grazing Regimes On Non-Game Birds In North Dakota Grasslands, Eric D. Salo, Kenneth F. Higgins, William T. Barker, Kristel K. Bakker, Kent C. Jensen

Proceedings of the North American Prairie Conferences

Grazing occurred naturally in the northern Great Plains and influenced many natural processes in grassland ecosystems, including the habitat selection of breeding birds. Grazing, mainly for livestock production, is still an important land use practice and is one that impacts millions of hectares on both public and private land in the United States. To better understand how long-term grazing treatments affect non-game breeding birds, a study was conducted at the Central Grasslands Research Extension Center (CGREC) in south-central North Dakota during 2001 and 2002 and results were compared to two earlier studies, one in native prairie and the other in …

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Contour Strips For Prairie Invasion On A Topsoil-Depleted Hilltop At Retzer Nature Center, J. A. Schwarzmeier Jan 2004

Contour Strips For Prairie Invasion On A Topsoil-Depleted Hilltop At Retzer Nature Center, J. A. Schwarzmeier

Proceedings of the North American Prairie Conferences

In 1981, 20% of a 3.3-acre (1.3-ha) portion of an eroded Hochheim loam on the Retzer "Vista" hilltop, in southeastern Wisconsin, was planted in 12-ft (3.7-m) wide "source strips" so that intervening 48-ft (15-m) wide "invasion strips" resulted. A dry-mesic prairie seed mix was used in the two highest elevation source strips and a mesic prairie seed mix was used in three source strips on the lower, side-sloped portion of the hilltop. While the fanning-era loss of essentially all of the original topsoil made the site "drier," the associated bringing up of more and more of the subsoil, with time, …

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Spatial Patterns Of Canopy And Sub-Canopy In Managed And Unmanaged Oak Savanna, Joy J. Wolf Jan 2004

Spatial Patterns Of Canopy And Sub-Canopy In Managed And Unmanaged Oak Savanna, Joy J. Wolf

Proceedings of the North American Prairie Conferences

The oak savanna in the Midwest was maintained historically in part by fire, topography, climate, and other factors. After agriculture, which left only large fencerow trees, park management of fire, mowing and other minor factors to restore clusters of oaks has proceeded at different frequencies at different sites since the 1960s. I asked how different management frequencies created a range of spatial patterns and composition in the canopy. I compared three 0.37-ha sites that were unmanaged, or managed with more or less frequency by spatially mapping all woody species to the nearest 25 m2 The oak trees, dominated by …

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Abstracts For Other Oral Presentations Jan 2004

Abstracts For Other Oral Presentations

Proceedings of the North American Prairie Conferences

Abstracts for Other Oral Presentations pp.1-26

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Adaptive Responses Of Paleoindians To Cold Stress On The Periglacial Northern Great Plains, Alan J. Osborn Jan 2004

Adaptive Responses Of Paleoindians To Cold Stress On The Periglacial Northern Great Plains, Alan J. Osborn

Department of Anthropology: Faculty Publications

Archaeologists' cumulative knowledge about Paleoindians has grown substantially during the past two decades, and accomplishments have been impressive. I find, however, that much of the research regarding the archaeology of the Paleoindian period is primarily descriptive and highly particularistic. In this essay, I propose that our understanding of Paleoindian artifact assemblages, associated ecofactual materials, and human remains can be more meaningful within a broader biophysical context. We must ask how the archaeological record of the Late Glacial period might provide paleoanthropologists with greater insights into early hunter-gatherer anatomy, physiology, diet, health, and behavior. I propose that our understanding of hunter-gatherer …

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Hunter-Gatherers In Jackson Hole, Wyoming: Testing Assumptions About Site Function, Kenneth P. Cannon, Dawn R. Bringelson, Molly Boeka Cannon Jan 2004

Hunter-Gatherers In Jackson Hole, Wyoming: Testing Assumptions About Site Function, Kenneth P. Cannon, Dawn R. Bringelson, Molly Boeka Cannon

Department of Anthropology: Faculty Publications

The settlement-subsistence pattern of hunter-gatherers in Jackson Hole, Wyoming, has been viewed historically as an economic system organized around the altitudinal distribution of seasonally ripening food crops and has come to be known as high country adaptation (HCA). Although this study does not take issue with the basic tenet of the modelhunter- gatherer movement through altitudinal zones for the exploitation of seasonally available resources-we critically assess the normative functional interpretations presented by previous investigators. We examine artifacts in three lithic assemblages from southern Jackson Hole in terms of the organization of technology as a means to investigate each locale's function …

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Solving Meno's Puzzle, Defeating Merlin's Subterfuge: Bodies Of Reference Knowledge And Archaeological Inference, Luann Wandsnider Jan 2004

Solving Meno's Puzzle, Defeating Merlin's Subterfuge: Bodies Of Reference Knowledge And Archaeological Inference, Luann Wandsnider

Department of Anthropology: Faculty Publications

THE MIND OF Lewis Binford is nimble and constantly evolving. In part, one can map Binford's prodigious intellectual growth by looking at the research trajectories of his students, who often continue on paths they began under his tutelage. In my case, certainly, this is very true. When I arrived at the University of New Mexico in the late 1970s and early 1980s, Binford was exploring the nature of the archaeological record: how to understand past human organization at a supra-ethnographic scale, what we might learn from bones and site structure, and how to reliably give meaning to the archaeological record. …

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Collection Management As Risk Management, Mary F. Casserly Jan 2004

Collection Management As Risk Management, Mary F. Casserly

University Libraries Faculty Scholarship

Risk and technological changes are inexorably linked, and librarians, as experts, must communicate these risks to lay persons and develop appropriate risk management strategies. This paper identifies some of the risks to library primacy, library and professional values, collection integrity, and scholarly communication and the information marketplace that those involved in collection development and acquisition of library materials may encounter. The sources of these risks are briefly described, and the author suggests some risk management strategies.

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Organizational Culture In Brazilian Public And Private Companies, Maria Cristina Ferreira, Eveline Maria Leal Assmar, Katia Maria Felipe Estol, Maria Cristina Da Costa Chagas Helena, Mari Do Carmo De Figueiredo Cisne Jan 2004

Organizational Culture In Brazilian Public And Private Companies, Maria Cristina Ferreira, Eveline Maria Leal Assmar, Katia Maria Felipe Estol, Maria Cristina Da Costa Chagas Helena, Mari Do Carmo De Figueiredo Cisne

Papers from the International Association for Cross-Cultural Psychology Conferences

No abstract provided.

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Characteristics Of Indonesian Intercultural Sensitivity In Multicultural And International Work Groups, Hana Panggabean Jan 2004

Characteristics Of Indonesian Intercultural Sensitivity In Multicultural And International Work Groups, Hana Panggabean

Papers from the International Association for Cross-Cultural Psychology Conferences

No abstract provided.

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Relations Between Social Axioms And Values: Findings From Germany And India, Edgar W. Klinger, Nandita Chaudhary, Sujata Sriran Jan 2004

Relations Between Social Axioms And Values: Findings From Germany And India, Edgar W. Klinger, Nandita Chaudhary, Sujata Sriran

Papers from the International Association for Cross-Cultural Psychology Conferences

No abstract provided.

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Notions Of Critical Thinking In Javanese, Batak Toba And Minangkabau Culture, Julia Suleeman Chandra Jan 2004

Notions Of Critical Thinking In Javanese, Batak Toba And Minangkabau Culture, Julia Suleeman Chandra

Papers from the International Association for Cross-Cultural Psychology Conferences

No abstract provided.

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The Influence Of Schooling On Cognitive Development: Spatial Language, Encoding And Concept Development In India And Nepal, Pierre R. Dasen, Ramesh Mishra, Shanta Niraula Jan 2004

The Influence Of Schooling On Cognitive Development: Spatial Language, Encoding And Concept Development In India And Nepal, Pierre R. Dasen, Ramesh Mishra, Shanta Niraula

Papers from the International Association for Cross-Cultural Psychology Conferences

No abstract provided.

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The Indigenization Of Psychology In India: Its Unique Form And Progress, Neharika Vohra Jan 2004

The Indigenization Of Psychology In India: Its Unique Form And Progress, Neharika Vohra

Papers from the International Association for Cross-Cultural Psychology Conferences

No abstract provided.

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Quality Of Life In Rural Nebraska: Trends And Changes, Rebecca J. Vogt Jan 2004

Quality Of Life In Rural Nebraska: Trends And Changes, Rebecca J. Vogt

Nebraska Rural Poll

Nebraska’s Water: Perceptions and Priorities

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Access And Affordability: Rural Nebraskans’ View Of Health Care, Rebecca J. Vogt Jan 2004

Access And Affordability: Rural Nebraskans’ View Of Health Care, Rebecca J. Vogt

Nebraska Rural Poll

Rural Nebraskans' Opinions on Raising Taxes to Fund Education and Public Aid

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Living And Serving In Rural Nebraska, Rebecca J. Vogt Jan 2004

Living And Serving In Rural Nebraska, Rebecca J. Vogt

Nebraska Rural Poll

Working Together: Rural Nebraskans’ Views of Regional Collaboration

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Nebraska’S Water: Perceptions And Priorities, Rebecca J. Vogt Jan 2004

Nebraska’S Water: Perceptions And Priorities, Rebecca J. Vogt

Nebraska Rural Poll

Individual and Community Well-Being: Perceptions of Change in Rural Nebraska

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Cities: Comparative Population Growth, Steven Alan Samson Jan 2004

Cities: Comparative Population Growth, Steven Alan Samson

Faculty Publications and Presentations

No abstract provided.

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