Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2003

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 4921 - 4950 of 9743

Full-Text Articles in Entire DC Network

The Brontini Of The World: A Generic Review Of The Tribe (Coleoptera: Silvanidae: Brontinae), Michael C. Thomas Mar 2003

The Brontini Of The World: A Generic Review Of The Tribe (Coleoptera: Silvanidae: Brontinae), Michael C. Thomas

Insecta Mundi

Abstract: The genera of the tribe Brontini (Silvanidae: Brontinae) are reviewed. The tribe is considered here to be composed of 12 genera, Uleiota Latreille, Brontopriscus Sharp, and Dendrophagus Schönherr, plus nine new genera: Australodendrophagus, Australohyliota, Brontoliota, Dendrophagella, Macrohyliota, Megahyliota, Microhyliota, Parahyliota, and Protodendrophagus. Aplatamus Grouvelle is removed from the Brontini and placed in the Telephanini. Four new species are described: Protodendrophagus antipodes Thomas; Brontoliota indivisipennis Thomas; Brontoliota intermedius Thomas; and Brontoliota monteithi Thomas.

Described species are assigned to genera with the following new combinations resulting:
Australodendrophagus australis (Erichson); Australohyliota chilensis (Blanchard); Australohyliota macleayi (Olliff); Denrophagella capito (Pascoe); Macrohyliota truncatipennis …

Go to article

A Catalogue Of West Indies Anthribidae (Coleoptera), Barry D. Valentine Mar 2003

A Catalogue Of West Indies Anthribidae (Coleoptera), Barry D. Valentine

Insecta Mundi

This is a catalogue of 23 described and 6 undescribed genera, and 48 described and 157 undescribed species of West Indian Anthribidae distributed from the Bahamas to Grenada. Each described genus has author, date, page, type species and how designated, World distribution, number of World species, and synonyms. Each described species has author, date, page, original generic name if a transfer has occurred, type locality, sex and location of type(s) if known, synonyms, and island-by-island distribution. New taxa are numbered, with data on museum location and island distribution. There are brief comments on New World distributions as they relate to …

Go to article

Aggregation Formation In A Neotropical Harvestment (Opiliones: Cosmetidae), March 2003, Crystal Fankhauser Mar 2003

Aggregation Formation In A Neotropical Harvestment (Opiliones: Cosmetidae), March 2003, Crystal Fankhauser

Monteverde Institute: Tropical Ecology and Conservation

Neotropical harvestments are generally omnivorous, solitary nocturnal foragers. However, several species of harvestmen are known to form aggregations during the day, including a species of harvestmen (family Cosmetidae) that is common in open, grassy areasin Monteverde, Puntarenas, Costa Rica. This study focuses on how and under what conditions new aggregations are formed by marking and recapturing individuals in natural and artificially created sites. Proposed hypotheses for the purpose of forming aggregations include: limited site availability that provides protection from desiccation and exposure to light, an increase in defensive ability against predators by using the mass release of defensive chemicals and …

Go to article

Age-Related Mobbing Behavior In Brown Jays, March 2003, James W. Ford Mar 2003

Age-Related Mobbing Behavior In Brown Jays, March 2003, James W. Ford

Monteverde Institute: Tropical Ecology and Conservation

Mobbing behavior is one way birds respond to the threat of a predator. I studied the mobbing behavior of Brown Jays (Cyanocorax morio) in Monteverde, Costa Rica. Brown Jays are included in the 3% of bird species that breed cooperatively. I was curious whether the competitive nature of obtaining a breeding position was related to mobbing in any way. Were the jays mobbing to increase individual fitness or inclusive fitness? I divided the birds into three age groups (juvenile, sub-adult, and adult) and tried to measure aggression between the groups. I used myself, a rubber snake model painted to resemble …

Go to article

Biological Responses Of Platystele Microtatantha And Specklinia Aristata (Orchidaceae) To Climate Change In Monteverde, Costa Rica, March 2003, Eleonore Wesserle Mar 2003

Biological Responses Of Platystele Microtatantha And Specklinia Aristata (Orchidaceae) To Climate Change In Monteverde, Costa Rica, March 2003, Eleonore Wesserle

Monteverde Institute: Tropical Ecology and Conservation

The lifting of the cloud bank due to climate change in the Monteverde cloud forest has already caused discernible effects on the dry season mist regime. Epiphytes, including the most prevalent family of epiphytes, Orchidaceae, may serve as a useful indicator group of climate change. This study sought to fill the gap in knowledge about orchidaceous epiphytes and climate change by testing the response of the pleurothallid orchids Platystele microtatantha and Specklinia aristata to supplemental mist treatments simulating 1970s mist frequencies. Two sites were studied: P. microtatantha growing on an orchid frame and P. microtatantha and S. aristata individuals growing …

Go to article

Niche Partitioning And Overlap In A Cloud Forest Between Two Neotropical Warblers (Parulidae), March 2003, Evan M. Adams Mar 2003

Niche Partitioning And Overlap In A Cloud Forest Between Two Neotropical Warblers (Parulidae), March 2003, Evan M. Adams

Monteverde Institute: Tropical Ecology and Conservation

The types of niche partitioning between two congener bird species Myioborus miniatus and M. torquatus (Parulidae) were studied in premontane wet and rain forest in Monteverde, Costa Rica. An altitudinal distribution showed that M. niniatus was found at an average height of 1568m and M. torquatus at 1612m. Foraging behavior was also different between the two species with M. miniatus foraging at an average height of 4.6m and M. torquatus at 7.2m off the ground. These findings indicate that there is a large amount overlap in altitudinal distribution and foraging height between the two species. Stronger partitioning with less overlap …

Go to article

Foraging Behavior Of Trigona Fulviventris In A Costa Rican Cloud Forest, March 2003, Tracy Noel Rogers Mar 2003

Foraging Behavior Of Trigona Fulviventris In A Costa Rican Cloud Forest, March 2003, Tracy Noel Rogers

Monteverde Institute: Tropical Ecology and Conservation

Two colonies of Trigona fulviventris were studied in Monteverde, Costa Rica in April- May, 2003. Foraging patterns were analyzed within the nest and between nests. Nest EBM showed no significant foraging change from morning to afternoon and no proportional foraging difference over the course of the study. On the other hand, nest DM showed significant change morning vs. afternoon as well as a clear proportional change along the duration of observations (p < 0.0001). There was also a difference in behavior between both nests (p = 0.004) which leads to the speculation that the timing of brood production of these two nests are not equal even though they are located in the same region and studied over the same time span.

Go to article

Species Diversity, Activity, And Behavioral Variation In Fireflies (Coleoptera: Lampyridae) Along An Elevational Gradient, March 2003, Emily J. Stirr Mar 2003

Species Diversity, Activity, And Behavioral Variation In Fireflies (Coleoptera: Lampyridae) Along An Elevational Gradient, March 2003, Emily J. Stirr

Monteverde Institute: Tropical Ecology and Conservation

Three aspects of firefly ecology were investigated including species diversity, activity and behavior of llampyrid species. Lampyrid species diversity was measured along an elevational gradient at five different sites (950m, 1100m, 1200m, 1450m, 1550m). Activity was measured along the same gradient between 6:00 PM and 8:45 PM. Behavioral diversity was studied in the context of species responses to disturbance by a simulated predator. Seven different species were collected including specimens of Aspisonia sp. and Photuris sp. Species diversity was found to be lowest at mid elevations and tended to increase at the outer ends of the gradient. Diversity was found …

Go to article

Review Of New World Aegialiini (Coleoptera: Scarabaeidae: Aphodiinae), With Descriptions Of Two New Genera From South America, Zdzislawa Stebnicka, Marco Dellacasa, Paul E. Skelley Mar 2003

Review Of New World Aegialiini (Coleoptera: Scarabaeidae: Aphodiinae), With Descriptions Of Two New Genera From South America, Zdzislawa Stebnicka, Marco Dellacasa, Paul E. Skelley

University of Nebraska State Museum: Entomology Papers

Two new taxa of Aegialiini (Coleoptera: Scarabaeidae: Aphodiinae) are described from South America: Argeremazus neuquen Stebnicka and Dellacasa, n. gen, n. sp, and Amerisaprus valdivia Stebnicka and Skelley, n. gen, n. sp. Both genera are presently monotypic. Discussion on the generic status of Caelius Lewis is presented. A key to genera and checklist of aegialiine taxa occurring in the New World are presented.

Go to article

The Development Of Relationships Between Constituent Concentrations And Generic Hydrological Variables, Carmen T. Agouridis, Dwayne R. Edwards Mar 2003

The Development Of Relationships Between Constituent Concentrations And Generic Hydrological Variables, Carmen T. Agouridis, Dwayne R. Edwards

Biosystems and Agricultural Engineering Faculty Publications

The collection and analysis of samples from storm events constitutes a large portion of the effort associated with water quality research. Estimating concentrations or loads from these events is often difficult. The equipment necessary to analyze the samples and the required laboratory resources are typically significant expenses incurred by the researcher. One potential method to reduce these costs is through the development of generic relationships between concentrations and easily measured variables such as dimensionless flow rate or time. The benefits recognized from such an effort include a reduction in the number of required samples, resulting in a reduction in cost. …

Go to article

End Matter Mar 2003

End Matter

Inscape

No abstract provided.

Go to article

Cave Research Foundation Newsletter, Volume 31, No. 1, March 2003, Lois Lyles Mar 2003

Cave Research Foundation Newsletter, Volume 31, No. 1, March 2003, Lois Lyles

Cave Research Foundation Newsletter

Contents: A Great Big Thank You! -- A Note from the Editor -- 68th Annual Meeting of the Cave Research Foundation -- 2002 CRF National Service Awards -- Hamilton Valley Land Management Symposium -- Hamilton Valley Field Trip - May 17 -- A Change at the Top of Cave Books -- National Speleological Society Restoration Camp, Mammoth Cave National Park, November 2-3, 2002 -- A Brief Overview of Coleopteran Fauna at Hamilton Valley -- Regional Expedition Reports -- 2003 Expedition Calendar

Go to article

Hybridization Between Glossy And White-Faced Ibises, James W. Arterburn, Joseph A. Grzybowski Mar 2003

Hybridization Between Glossy And White-Faced Ibises, James W. Arterburn, Joseph A. Grzybowski

North American Birds

No abstract provided.

Go to article

Middle Atlantic, Marshall J. Iliff Mar 2003

Middle Atlantic, Marshall J. Iliff

North American Birds

No abstract provided.

Go to article

Vital Signs, Spring 2003, Boonshoft School Of Medicine Mar 2003

Vital Signs, Spring 2003, Boonshoft School Of Medicine

Vital Signs

A twenty-seven page newsletter created by the Boonshoft School of Medicine to document the current affairs of the school. This issue includes a variety of feature articles, a faculty profile, and more.

Go to article

2003 March, Office Of Communications & Marketing, Morehead State University. Mar 2003

2003 March, Office Of Communications & Marketing, Morehead State University.

Morehead State Press Release Archive, 1961 to the Present

Morehead State University press releases for March of 2003.

Go to article

The Causes And Effects Of Nest Clustering In Colonies Of The Chestnut-Headed Oropendola (Psarocolius Wagleri), March 2003, Jason Fisher Mar 2003

The Causes And Effects Of Nest Clustering In Colonies Of The Chestnut-Headed Oropendola (Psarocolius Wagleri), March 2003, Jason Fisher

Monteverde Institute: Tropical Ecology and Conservation

Colonies of nesting birds are often subdivided into clusters of nests; the causes and effects of these clusters have profound impacts on the breeding strategies of colonial nesting birds. Five colonies of a Neotropical colonial nesting bird, the Chestnut-headed Oropendola (Psarocolius wagleri), were studied to identify trends in male and female intersexual competition, mating strategy, and brood parasitism in relation to colony and cluster size. The results were compared with data from studies by Webster (1994a, b) for another colonial nester, the Montezuma Oropendola (Psarocolius montezuma), which is known to use female-defence polygyny. The comparisons showed that while both the …

Go to article

The Speech Enhancing Effect Of Internet Regulation, Emily Buss Mar 2003

The Speech Enhancing Effect Of Internet Regulation, Emily Buss

Public Law and Legal Theory Working Papers

No abstract provided.

Go to article

Red-Breasted Nuthatches In The Big South Fork National River And Recreation Area: First Nesting Record For Tennessee's Cumberland Plateau, Frank Renfrow, Stephen J. Stedman Mar 2003

Red-Breasted Nuthatches In The Big South Fork National River And Recreation Area: First Nesting Record For Tennessee's Cumberland Plateau, Frank Renfrow, Stephen J. Stedman

The Migrant - Tennessee Ornithological Society

No abstract provided.

Go to article

Comparison Of Methods For Dna Isolation From Food Samples For Detection Of Shiga Toxin-Producing Escherichia Coli By Real-Time Pcr, Loree C. Heller, Carisa R. Davis, K. Kealy Peak, David Wingfield, Andrew C. Cannons, Philip T. Amuso, Jacqueline Cattani Mar 2003

Comparison Of Methods For Dna Isolation From Food Samples For Detection Of Shiga Toxin-Producing Escherichia Coli By Real-Time Pcr, Loree C. Heller, Carisa R. Davis, K. Kealy Peak, David Wingfield, Andrew C. Cannons, Philip T. Amuso, Jacqueline Cattani

Bioelectrics Publications

In this study, food samples were intentionally contaminated with Escherichia coli O157:H7, and then DNA was isolated by using four commercial kits. The isolated DNA samples were compared by using real-time PCR detection of the Shiga toxin genes. The four kits tested worked similarly.

Go to article

Review Of Molecular Biology Of Fungal Development, Mycology Series, Volume 15, Marty Dickman Mar 2003

Review Of Molecular Biology Of Fungal Development, Mycology Series, Volume 15, Marty Dickman

Department of Plant Pathology: Faculty Publications

Numerous publications, books, and textbooks are available that treat the subject of developmental biology. Far less is available detailing the fungi, an important group of organisms that have implications in a broad variety of contexts from medical to agricultural to food, and of course as model systems for “higher” eukaryotes. This nicely edited book by Osiewacz is an attempt to fill that gap. He has compiled an impressive list of authors, who represent leaders in their respective fields. This gives readers a detailed and current view of a broad array of fungal processes and lifestyles, ranging from saprophytes to pathogens …

Go to article

Glucuronidation Enzymes, Genes And Psychiatry, Jose De Leon Mar 2003

Glucuronidation Enzymes, Genes And Psychiatry, Jose De Leon

Psychiatry Faculty Publications

The phase I cytochrome P450 (CYP) isoenzymes have received substantial attention in the pharmacogenetic literature. Researchers are beginning to examine the role of the phase II UDP-glucuronosyltransferase (UGT) enzymes, which produce products that are more water-soluble, less toxic and more readily excreted than the parent compounds. Several reasons may have contributed to neglect of UGTs (compared to CYPs) including: (1) the overlapping activity of UGTs and lack of selective probes; (2) the complexity of the glucuronidation cycle; and (3) the difficulty in developing analytic methods to measure glucuronides. Current CYP knowledge is used as a model to predict advances in …

Go to article

Bacillus Anthracis Virulence In Guinea Pigs Vaccinated With Anthrax Vaccine Adsorbed Is Linked To Plasmid Quantities And Clonality, Pamala R. Coker, Kimothy L. Smith, Patricia F. Fellows, Galena Rybachuck, Konstantin G. Kousoulas, Martin E. Hugh-Jones Mar 2003

Bacillus Anthracis Virulence In Guinea Pigs Vaccinated With Anthrax Vaccine Adsorbed Is Linked To Plasmid Quantities And Clonality, Pamala R. Coker, Kimothy L. Smith, Patricia F. Fellows, Galena Rybachuck, Konstantin G. Kousoulas, Martin E. Hugh-Jones

Faculty Publications

Bacillus anthracis is a bacterial pathogen of great importance, both historically and in the present. This study presents data collected from several investigations and indicates that B. anthracis virulence is associated with the clonality and virulence of plasmids pXO1 and pXO2. Guinea pigs vaccinated with Anthrax Vaccine Adsorbed were challenged with 20 B. anthracis isolates representative of worldwide genetic diversity. These same isolates were characterized with respect to plasmid copy number by using a novel method of quantitative PCR developed for rapid and efficient detection of B. anthracis from environmental samples. We found that the copy numbers for both pXO1 …

Go to article

Human Population Genetic Structure And Inference Of Group Membership, Michael J. Bamshad, Stephen Wooding, W. Scott Watkins, Christopher T. Ostler, Mark A. Batzer, Lynn B. Jorde Mar 2003

Human Population Genetic Structure And Inference Of Group Membership, Michael J. Bamshad, Stephen Wooding, W. Scott Watkins, Christopher T. Ostler, Mark A. Batzer, Lynn B. Jorde

Faculty Publications

A major goal of biomedical research is to develop the capability to provide highly personalized health care. To do so, it is necessary to understand the distribution of interindividual genetic variation at loci underlying physical characteristics, disease susceptibility, and response to treatment. Variation at these loci commonly exhibits geographic structuring and may contribute to phenotypic differences between groups. Thus, in some situations, it may be important to consider these groups separately. Membership in these groups is commonly inferred by use of a proxy such as place-of-origin or ethnic affiliation. These inferences are frequently weakened, however, by use of surrogates, such …

Go to article

The Pan American (2003-03-01), Matt Lynch Mar 2003

The Pan American (2003-03-01), Matt Lynch

UTPA Archives - The Pan American Newspaper

51st Year, No. 25

Go to article

Multimission Aircraft Design Study-Operational Scenarios, Nevin Coskuner Mar 2003

Multimission Aircraft Design Study-Operational Scenarios, Nevin Coskuner

Theses and Dissertations

In the most recent years, the Command, Control and Communications, Counter Measures, Intelligence, Surveillance and Reconnaissance (C3CMISR) aircrafts are used commonly in many NATO and UN Operations around the world. These aircrafts are AWACS, JSTARS, Rivet Joint, Compass Call and ABCCC. They provide close air support in the name of airborne surveillance, ground moving target surveillance, target reconnaissance, jamming, and command, control and communications issues in operational environments. Those aircrafts are tasked with a wide variety of missions than ever before in operational theaters and each one of them comprises a specific amount of cost and risk factors. As a …

Go to article

Night Thoughts: Reflections On The Debate Concerning Same-Sex Marriage, John V. Orth Mar 2003

Night Thoughts: Reflections On The Debate Concerning Same-Sex Marriage, John V. Orth

Nevada Law Journal

No abstract provided.

Go to article

The Bush Doctrine And War With Iraq, Jeffrey Record Mar 2003

The Bush Doctrine And War With Iraq, Jeffrey Record

The US Army War College Quarterly: Parameters

No abstract provided.

Go to article

South Dakota State University Bulletin Quarterly 2002-2004 Supplement Catalog: Undergraduate And Graduate Programs, South Dakota State University Mar 2003

South Dakota State University Bulletin Quarterly 2002-2004 Supplement Catalog: Undergraduate And Graduate Programs, South Dakota State University

South Dakota State University Catalogs and Bulletins: 1935 to present

No abstract provided.

Go to article

Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 19, Number 5, March 2003, College Of Engineering And Computer Science, Wright State University Mar 2003

Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 19, Number 5, March 2003, College Of Engineering And Computer Science, Wright State University

BITs and PCs Newsletter

An eight page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.

Go to article

First Prev Next Last