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2007

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Dominant Species Constrain Effects Of Species Diversity On Temporal Variability In Biomass Production Of Tallgrass Prairie, H. Wayne Polley, Brian J. Wilsey, Justin D. Derner Jan 2007

Dominant Species Constrain Effects Of Species Diversity On Temporal Variability In Biomass Production Of Tallgrass Prairie, H. Wayne Polley, Brian J. Wilsey, Justin D. Derner

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Species diversity is thought to stabilize functioning of plant communities. An alternative view is that stability depends more on dynamics of dominant species than on diversity. We compared inter-annual variability (inverse of stability) of aboveground biomass in paired restored and remnant tallgrass prairies at two locations in central Texas, USA. Data from these two locations were used to test the hypothesis that greater richness and evenness in remnant than restored prairies would reduce variability in aboveground biomass in response to natural variation in rainfall. Restored prairies were chosen to be similar to paired remnant prairies in characteristics other than species …


Nitrogen Contribution Of Peanut Residue To Cotton In A Conservation Tillage System, B. Meso, K. S. Balkcom, C. W. Wood, J. F. Adams Jan 2007

Nitrogen Contribution Of Peanut Residue To Cotton In A Conservation Tillage System, B. Meso, K. S. Balkcom, C. W. Wood, J. F. Adams

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Leguminous crops, particularly winter annuals, have been utilized in conservation systems to partially meet nitrogen (N) requirements of succeeding summer cash crops. Previous research also highlights the benefits of utilizing summer annual legumes in rotation with non-leguminous crops. This study assessed the N contribution of peanut (Arachis hypogaea L.) residues to a subsequent cotton (Gossypium hirsitum L.) crop in a conservation system on a Dothan sandy loam (fine-loamy, kaolinitic, thermic Plinthic Kandiudults) at Headland, AL during the 2003–2005 growing seasons. Treatments were arranged in a split plot design, with main plots of peanut residue retained or removed from …


Influence Of Soil Moisture On Root Colonization Of Glyphosate-Treated Soybean By Fusarium Species, Nathan E. Means, Robert J. Kremer Jan 2007

Influence Of Soil Moisture On Root Colonization Of Glyphosate-Treated Soybean By Fusarium Species, Nathan E. Means, Robert J. Kremer

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

The widespread use of glyphosate-resistant (GR) cropping systems may impact rhizosphere microbial associations and crop productivity. It was previously reported that glyphosate accumulation in the rhizosphere may stimulate colonization of soybean [Glycine max (L.) Merr.] roots by soilborne Fusarium. Field studies often reveal inconsistent root colonization by Fusarium, especially during growing seasons characterized by contrasting rainfall patterns. Therefore, this study was conducted to determine the impact of different soil moisture contents on root colonization of glyphosate-treated soybean by Fusarium species. Glyphosate (0.84 kg ae ha-1) was applied to greenhouse-grown glyphosate-resistant (GR) soybean at the two to …


Browsing Lawns? Responses Of Acacia Nigrescens To Ungulate Browsing In An African Savanna., D. A. Fornara, Johan T. Du Toit Jan 2007

Browsing Lawns? Responses Of Acacia Nigrescens To Ungulate Browsing In An African Savanna., D. A. Fornara, Johan T. Du Toit

Wildland Resources Faculty Publications

We measured browsing-induced responses of Acacia trees to investigate "browsing lawns" as an analogy to grazing lawns in a semiarid eutrophic African savanna. During the two-year field study, we measured plant tolerance, resistance, and phenological traits, while comparing variation in leaf nitrogen and specific leaf area (SLA) across stands of Acacia nigrescens, Miller, that had experienced markedly different histories of attack from large herbivores. Trees in heavily browsed stands developed (1) tolerance traits such as high regrowth abilities in shoots and leaves, high annual branch growth rates, extensive tree branching and evidence of internal N translocation, and (2) resistance traits …


Locating The (Post-) Colonial In Soviet History, Adeeb Khalid Jan 2007

Locating The (Post-) Colonial In Soviet History, Adeeb Khalid

History Faculty Work

No abstract provided.


Improving Test Scores In High School Physics Through The Use Of Journals, Timothy J. Barron Jan 2007

Improving Test Scores In High School Physics Through The Use Of Journals, Timothy J. Barron

All NMU Master's Theses

No abstract provided.


Reciprocity Acollection Of Essays, Shannon M. Cole Jan 2007

Reciprocity Acollection Of Essays, Shannon M. Cole

All NMU Master's Theses

No abstract provided.


Effects Of Seed Mixture Composition And Cover Crop Usage On Productivity And Growth Of Native Prairie Forbs And Grasses, Kimberly S. Larson Jan 2007

Effects Of Seed Mixture Composition And Cover Crop Usage On Productivity And Growth Of Native Prairie Forbs And Grasses, Kimberly S. Larson

All NMU Master's Theses

No abstract provided.


Beyond The Known: Writing Centers And The Work Of Anti-Racism, Frankie Condon Jan 2007

Beyond The Known: Writing Centers And The Work Of Anti-Racism, Frankie Condon

The Writing Center Journal

No abstract provided.


Research Strategies To Reduce Bovine Tuberculosis Transmission From Wildlife To Cattle, Are R. Brentensen, Mike R. Dunbar, Robert G. Mclean Jan 2007

Research Strategies To Reduce Bovine Tuberculosis Transmission From Wildlife To Cattle, Are R. Brentensen, Mike R. Dunbar, Robert G. Mclean

United States Department of Agriculture Wildlife Services: Staff Publications

Bovine tuberculosis (bTB) is a zoonotic disease caused by Mycobaterium bovis, and is transmissible to humans, wildlife and domestic livestock. In the northern Lower Peninsula of Michigan, white-tailed deer (Odocoileus virginianus) serve as a reservoir for the disease and pose a significant threat to domestic cattle and captive cervids. Scientists at USDA, APHIS, Wildlife Services, National Wildlife Research Center have designed a variety of laboratory and field studies aimed at reducing or eliminating bTB infection in cattle by interrupting the transmission of the disease from wildlife reservoirs. These strategies include reducing bTB in deer by delivery of …


Leiocephalus Carinatus Armouri (Northern Curlytail Lizard.). Mockingbird Attack; Assertion Displays, Henry T. Smith, Richard M. Engeman Jan 2007

Leiocephalus Carinatus Armouri (Northern Curlytail Lizard.). Mockingbird Attack; Assertion Displays, Henry T. Smith, Richard M. Engeman

United States Department of Agriculture Wildlife Services: Staff Publications

Leiocephalus carinatus armouri is a well-established exotic species in Florida (Meshaka et al. 2004. The Exotic Amphibians and Reptiles of Florida. Krieger Publishing Co., Malabar, Florida. 155 pp.; Smith and Engeman 2004. Florida Field Nat. 32:107-113; Meshaka et al. 2005. Southeast. Nat. 4521-526). Various avian species are predators of L. c. amouri in Florida including the Northern Mockingbird (Mimus polyglottos) (Smith et al. 2006. Herpetol. Rev. 37:224). Here we report an attack by a L. c. armouri on a pre-fledgling Northern Mockingbird (Mimus polyglottos) in Florida.


A Review Of Biomarkers Used For Wildlife Damage And Disease Management, Tricia L. Fry, Mike R. Dunbar Jan 2007

A Review Of Biomarkers Used For Wildlife Damage And Disease Management, Tricia L. Fry, Mike R. Dunbar

United States Department of Agriculture Wildlife Services: Staff Publications

Biomarkers are distinctive biological indicators used to identify, often through indirect means, when an event or physiologic process of interest has occurred in an animal. Historically, a variety of biomarkers, as well as bait-markers, have been used in wildlife management including radioactive isotopes, stable isotopes, fatty acids, systemic and physical biomarkers. The ability to successfully track, monitor, and identify animals using minimally invasive techniques is becoming increasingly important as wildlife-human interactions increase. This paper is an overview of the benefits and limitations of previously and presently used biomarkers in wildlife damage and disease management with emphasis on the use of …


Blackbird Use Of Wildlife Conservation Sunflower Plots, George M. Linz, Jonathan M. Raetzman, Heath M. Hagy, H. Jeffrey Homan, William J. Bleier Jan 2007

Blackbird Use Of Wildlife Conservation Sunflower Plots, George M. Linz, Jonathan M. Raetzman, Heath M. Hagy, H. Jeffrey Homan, William J. Bleier

United States Department of Agriculture Wildlife Services: Staff Publications

Blackbird (Icteridae) damage to ripening sunflower fields in North Dakota ranges from $5-10 million and has probably forced many growers to abandon this crop. From 2004 to 2006, USDA, APHIS, Wildlife Services cost-shared Wildlife Conservation Sunflower Plots (WCSP) with sunflower growers. The objective of the WCSP was to provide blackbirds an attractive nearby alternative food source to reduce damage in commercial fields. From 2004 through 2006, sunflower damage in the WCSP’s was 39%, 32%, and 60%, respectively. In comparison, damage in nearby commercial fields was 5%, 4%, and 18%, over those years. In 2006, drought in the region …


Beyond Organic: Defining Alternatives To Usda Certified Organic, Jennifer Ann Von Sehlen Jan 2007

Beyond Organic: Defining Alternatives To Usda Certified Organic, Jennifer Ann Von Sehlen

Graduate Student Theses, Dissertations, & Professional Papers

Since the inception of the National Organic Program (NOP) housed within the United States Department of Agriculture (USDA), the substantial growth of the organic food market has garnered both enthusiasm and criticism. While large farm operations and food companies boast a significant reduction in the use of pesticides and synthetic fertilizers as a result of more crop land being converted to organic production, small-scale organic farmers are feeling the financial pinch as industry takes over the once niche market. The USDA has received much criticism for defining organic in a way that appears to favor special interests, including industrial-size organic …


Cause Specific Mortality Of Desert Bighorn Sheep Lambs In The Fra Cristobal Mountains, New Mexico, Usa, Zachary David Parsons Jan 2007

Cause Specific Mortality Of Desert Bighorn Sheep Lambs In The Fra Cristobal Mountains, New Mexico, Usa, Zachary David Parsons

Graduate Student Theses, Dissertations, & Professional Papers

Desert bighorn sheep (Ovis canadensis mexicana) are an endangered species in New Mexico. Many of the small, isolated populations of desert bighorn are declining, and factors affecting their growth rates include low lamb recruitment and high mortality of adults due to cougar predation. No one has previously reported cause-specific mortality rates for desert bighorn lambs. My objectives were to determine the causes, extent, and timing of lamb mortality in the Fra Cristobal Mountains, New Mexico, USA. I tested 3 capture techniques during 2001 and 2002: approaching lambs on foot and restraining them by hand; jumping from a helicopter and restraining …


Characterization Of Long Pathlength Capillary Waveguides For Evanescent Fluorescence Applications, Eric Paprocki Jan 2007

Characterization Of Long Pathlength Capillary Waveguides For Evanescent Fluorescence Applications, Eric Paprocki

Graduate Student Theses, Dissertations, & Professional Papers

The optical properties of a novel fused silica fiber-optic capillary waveguide (FOCap) for fluorescence spectroscopy were evaluated. Evanescent fluorescence from samples in the FOCap was measured by coupling the FOCap to a light source and a fluorescence spectrophotometer. The FOCap has negligible excitation light loss over long lengths (20 m or more) for a range of wavelengths. The evanescent fluorescence was linear up to at least 20 m for a solution in the core and up to at least 15 m for a fluorophore covalently attached to the inner surface. Evanescent fluorescence measurements in 50, 150, and 250 µm inner …


A Comprehensive Case Report Of University Of Montana Forensic Collection Case #141, Yasuko Takebe Jan 2007

A Comprehensive Case Report Of University Of Montana Forensic Collection Case #141, Yasuko Takebe

Graduate Student Theses, Dissertations, & Professional Papers

UMFC case #141 was acqired in spring 2006, as a commercially prepared anatomical specimen, reportedly from the Peoples Republic of China. It is a nealy complete skeleton that exhibits severe trauma of hte lower limbs. I reviewed the literature on methods of estimating age from the skeleton, because age is difficult to estimate for this case nad presents an interesting challenge. I then proceeded to estimate sex, ancestry, age, stature, and weight. I conclude that UMFC #141 is a White male, 39 to 45 years old, 5'0" to 5'4" in height, 110 to 161 pounds in weight. Healed fractures of …


Neuropsychological Correlates Of Borderline Personality Disorder, Christopher S. Miller Jan 2007

Neuropsychological Correlates Of Borderline Personality Disorder, Christopher S. Miller

Graduate Student Theses, Dissertations, & Professional Papers

In the current study, participants with borderline personality disorder (BPD) displayed deficits in neuropsychological functioning when compared with healthy controls. Participants with BPD performed worse on all measures of cognitive functioning: attention, verbal memory, processing speed and a measure of general neuropsychological functioning. The study found that depression was significantly more prevalent in the BPD sample compared with the control sample and that there was a significant inverse correlation between level of depression and scores on a general index of neuropsychological functioning. Results from ANCOVA analyses revealed significant differences existed in neuropsychological performance on all four measures of cognitive functioning …


Pharmacological Modeling And Regulation Of Excitatory Amino Acid Transporters (Eaats), Shailesh Ramjilal Agarwal Jan 2007

Pharmacological Modeling And Regulation Of Excitatory Amino Acid Transporters (Eaats), Shailesh Ramjilal Agarwal

Graduate Student Theses, Dissertations, & Professional Papers

L-Glutamate is the major excitatory neurotransmitter in the mammalian CNS that can mechanistically contribute to either neuronal signaling or neuronal pathology. Consequently, its concentration in the CNS must be carefully regulated, a critical need that is met by the excitatory amino acid transporters (EAATs). The presence of at least five isoforms of EAATs raises interesting questions as to potential structural and functional differences among the subtypes. We have investigated possible differences in the ligand binding domains of the EAATs through the development of computationally based pharmacophore models. An EAAT2-specific model was created with four potent and selective ligands that act …


Pilot Study On The Prediction Of Heart Rot In Apparently Sound Western Larch, Angela Daenzer Jan 2007

Pilot Study On The Prediction Of Heart Rot In Apparently Sound Western Larch, Angela Daenzer

Graduate Student Theses, Dissertations, & Professional Papers

Since many cavity-excavating birds require trees with heart rot, managers routinely emphasize decayed trees in their snag retention prescriptions. Where too few trees are present with obvious indicators of decay, apparently sound trees are left to meet retention objectives. These trees may also contain decay, and may offer advantages in longevity and protection over more extensively decayed trees. Better information regarding conditions and heartwood decay-causing fungi important to heart rot in apparently sound trees would aid in retention decisions. We combined data from the 2003 Westside Reservoir and Roberts Fire burns with data from the USFS Forest Health Protection’s 10-year …


Loggerhead Sea Turtle (Caretta Caretta) Nesting On A Georgia Barrier Island: Effects Of Nest Relocation, Jacob Anthony Tuttle Jan 2007

Loggerhead Sea Turtle (Caretta Caretta) Nesting On A Georgia Barrier Island: Effects Of Nest Relocation, Jacob Anthony Tuttle

College of Graduate Studies: Theses & Dissertations

The purpose of this study was to determine the effects of nest relocation on nest parameters and embryonic development. The nesting biology of the loggerhead sea turtle (Caretta caretta) was studied on Blackbeard Island in 2005 and 2006, during the nesting season. Research nests were randomly assigned one of two treatments (in-situ or relocated). In-situ nests (n=35) were left in the original location, while relocated nests (n=34) were moved above the spring high-tide line and into areas that were considered to be of favorable nesting conditions. Data-loggers were placed in the center of nests to record the temperature during the …


Book Review: "The Advancement Of Learning: Building The Teaching Commons" By Mary Taylor Huber & Pat Hutchings (2005), John Tagg Jan 2007

Book Review: "The Advancement Of Learning: Building The Teaching Commons" By Mary Taylor Huber & Pat Hutchings (2005), John Tagg

International Journal for the Scholarship of Teaching & Learning

No abstract provided.


Factors Associated With Employment Among Latinos Living With Hiv/Aids, Shaun Michael Burns, Lydia R. L. Young, Suzanne Maniss Jan 2007

Factors Associated With Employment Among Latinos Living With Hiv/Aids, Shaun Michael Burns, Lydia R. L. Young, Suzanne Maniss

Counseling Faculty Publications

This investigation explored the utility of various demographic, health-related, and psychological variables in predicting employment among Latinos living with HIV/AIDS. Results of an analysis of variance indicated that employed participants were younger, evinced significantly greater CD4 counts, physical and mental health functioning, and internal locus of control beliefs than those who were unable to work due to disabilities. A backward binary logistic regression demonstrated that age, CD4 count, internal locus of control, and mental health functioning contributed to the explanatory power of the final model. This model correctly classified group membership 72% of the time, 78% of participants who were …


Cattle Grazing Impacts On Vegetation Adjacent To Ponds In Santa Clara County, Ca, Dawn Elizabeth Lippe Jan 2007

Cattle Grazing Impacts On Vegetation Adjacent To Ponds In Santa Clara County, Ca, Dawn Elizabeth Lippe

Master's Theses

No abstract provided.


Negligence-Based Environmental Crimes: Failing To Exercise Due Care Can Be Criminal, Joseph J. Lisa Jan 2007

Negligence-Based Environmental Crimes: Failing To Exercise Due Care Can Be Criminal, Joseph J. Lisa

Villanova Environmental Law Journal (1991 - )

No abstract provided.


Opening The Floodgates: The Roberts Court's Decision In Rapanos V. United States Spells Trouble For The Future Of The Waters Of The United States, Bill Currie Jan 2007

Opening The Floodgates: The Roberts Court's Decision In Rapanos V. United States Spells Trouble For The Future Of The Waters Of The United States, Bill Currie

Villanova Environmental Law Journal (1991 - )

No abstract provided.


Church Health And Church Growth In Congregations Of The Russian Church Of Evangelical Christians, Andrei E. Blinkov Jan 2007

Church Health And Church Growth In Congregations Of The Russian Church Of Evangelical Christians, Andrei E. Blinkov

ATS Dissertations

No abstract provided.


Discerning Congregational Culture For Pastoral Ministry : The Church Culture Survey, Andreas Dietrich Jan 2007

Discerning Congregational Culture For Pastoral Ministry : The Church Culture Survey, Andreas Dietrich

ATS Dissertations

No abstract provided.


Factors Contributing To Wellness Throughout The Seasons Of Vocational Ministry, Gordon C. Grieve Jan 2007

Factors Contributing To Wellness Throughout The Seasons Of Vocational Ministry, Gordon C. Grieve

ATS Dissertations

No abstract provided.


Transformation Of The Traditional Circumcision Rite Of Passage For Meru Boys In Kenya : A Critical Response To Hiv/Aids And Gang Formation, Jacob M. Kanake Jan 2007

Transformation Of The Traditional Circumcision Rite Of Passage For Meru Boys In Kenya : A Critical Response To Hiv/Aids And Gang Formation, Jacob M. Kanake

ATS Dissertations

No abstract provided.