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

Life Sciences Commons

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

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 175291 - 175320 of 251913

Full-Text Articles in Life Sciences

Synopsis Of Scarab Beetle Tribe Valgini (Coleoptera: Scarabaeidae: Cetoniinae) In The New World, Mary Liz Jameson, Katharine A. Swoboda Sep 2005

Synopsis Of Scarab Beetle Tribe Valgini (Coleoptera: Scarabaeidae: Cetoniinae) In The New World, Mary Liz Jameson, Katharine A. Swoboda

University of Nebraska State Museum: Entomology Papers

Two genera and Þve species of valgine scarabs (Cetoniinae: Valgini) are found in the New World, including the introduced European species, Valgus hemipterus L.. Valgus mexicanus Cazier is transferred to the genus Dasyvalgus Kolbe, and characters that support this transfer are discussed. Based on shared morphological characters, Valgus minutus Casey and V. serricollis Fitch are synonymized with V. canaliculatus (Olivier). Neotypes are designated for V. serricollis Fitch and Cetonia canaliculata Olivier.Akey to the genera and species of New World Valgini is provided. Species are redescribed and information about geographic and phenology, biology, and larvae is provided.


Differences In Pah Tolerance Between Capitella Species: Underlying Biochemical Mechanisms, Lis Bach, Annemette Palmqvist, Lene Juel Rasmussen, Valery E. Forbes Sep 2005

Differences In Pah Tolerance Between Capitella Species: Underlying Biochemical Mechanisms, Lis Bach, Annemette Palmqvist, Lene Juel Rasmussen, Valery E. Forbes

Valery Forbes Publications

The polychaete Capitella capitata consists of a species complex within which differences in tolerance to tox­icants have been observed. For example, it has been shown that Capitella sp. S is more sensitive (e.g., in terms of survival, growth and reproduction) to PAH and other stressors than the more opportunistic Capi­tella sp. I, which is able to take up and biotransform the PAH fluoranthene (Flu). In the present study, an in­vestigation was performed to examine whether differences in tolerance between Capitella species sp. I and sp. S are due to differences in biotransformation, measured as the amount of Flu-metabolites produced by …


Endangered Species Bulletin, September 2005 - Vol. Xxx No. 2 Sep 2005

Endangered Species Bulletin, September 2005 - Vol. Xxx No. 2

Endangered Species Bulletin

In this issue:
4 CITES Supports Sustainable Use
8 Fact or Fiction: CITES and the ESA
10 Partnerships for Alligator Recovery and Trade
12 Sustainable Use for Vicuña Conservation
14 The Role of CITES in Orchid Conservation
16 Managing the Trade in Sturgeon and Paddlefish
18 Enforcement Starts with Wildlife Inspectors
20 Room at the Table: Voices of NGOs
22 Species Conservation Under Appendix I
24 Mushrooms and the Future of CITES
26 Focus on Refuges
29 Regional News


Tb191: Conservation And Management Of Native Bees In Cranberry, Jennifer L. Loose, Francis A. Drummond, Constance Stubbs, Stephen Woods Sep 2005

Tb191: Conservation And Management Of Native Bees In Cranberry, Jennifer L. Loose, Francis A. Drummond, Constance Stubbs, Stephen Woods

Technical Bulletins

Threats to agriculturally important pollinators have serious implications for human beings. A loss of bees translates to less successful crop pollination, thus reduced yield and poorer quality fruits. Native bees have the potential to serve as commercial pollinators. A diverse pollinator complex comprised of both honey bees and native bees should result in stable pollination levels and should be resistant to threats such as disease, fluctuating honey and crop prices, and honey bee transportation costs. Adding the goal of native bee conservation to land management increases the ecological integrity of an ecosystem by conserving a unique biological interaction that is …


Forage News [2005-09], Department Of Plant And Soil Sciences, University Of Kentucky Sep 2005

Forage News [2005-09], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

  • Scott County to Host Fall Grazing School
  • Now is the Time to Test
  • Economics of Grazing Stocker Cattle as a Sustainable Alternative to Row Crops
  • Roundup Ready Alfalfa
  • Novel Endophyte Tall Fescue
  • Is It Too Late to Stockpile This Year?
  • KFGC Awards
  • KFGC Executive Committee to Meet September 6
  • Wisconsin Grazing Dairy Farms
  • Upcoming Events


Effects Of Commercial Diazinon And Imidacloprid On Microbial Urease Activity In Soil And Sod, C. W. Ingram, Mark S. Coyne, David W. Williams Sep 2005

Effects Of Commercial Diazinon And Imidacloprid On Microbial Urease Activity In Soil And Sod, C. W. Ingram, Mark S. Coyne, David W. Williams

Plant and Soil Sciences Faculty Publications

Diazinon [O,O-diethyl O-2-isopropyl-6-methyl(pyrimidine-4-yl) phosphorothioate] and imidacloprid [1-(1-[6-chloro-3-pyridinyl]methyl)-N-nitro-2-imidazolidinimine] are applied to lawns for insect control simultaneously with nitrogenous fertilizers such as urea, but their potential effect on urease activity and nitrogen availability in turfgrass management has not been evaluated. Urease activity in enzyme assays, washed cell assays, and soil slurries was examined as a function of insecticide concentration. Intact cores from field sites were used to assess the effect of insecticide application on urease activity in creeping bentgrass (Agrostis palustris Huds.) and bluegrass (Poa pratensis L.) sod. Bacterial urease fromBacillus pasteurii and plant …


Sp661 Bacterial Leaf Scorch In Landscape Trees, The University Of Tennessee Agricultural Extension Service Sep 2005

Sp661 Bacterial Leaf Scorch In Landscape Trees, The University Of Tennessee Agricultural Extension Service

Forestry, Trees, and Timber

Bacterial leaf scorch is a chronic disease caused by a bacterium, Xylella fastidiosa, that grows in the xylem of the tree and physically clogs these water-conducting vessels. As the bacterium multiplies, water transport becomes more limited. The tree suffers water stress, especially in mid to late summer, resulting in leaf scorch; a browning or discoloration of the margins of the leaves with interior portions of the leaves near the veins remaining green. The bacterium is spread by leafhoppers, spittlebugs and other xylem-feeding insects.


Sp628 Choosing 'Sewer Safer' Trees, The University Of Tennessee Agricultural Extension Service Sep 2005

Sp628 Choosing 'Sewer Safer' Trees, The University Of Tennessee Agricultural Extension Service

Forestry, Trees, and Timber

Municipal sanitary sewer systems are, second to the drinking water system, the most important public health asset of a city. When they are properly operating, that is, carrying the wastewater and sewage away from homes and businesses and to the treatment plant, they protect the public from the potential health hazards associated with human waste. However, when blockages in the pipes cause backups into homes or businesses or overflows in streets or rightof- ways, the health of citizens is at risk. One of the factors that contributes to sewer line blockages is the intrusion of tree roots. Landowners and landscape …


Sp662 Guidelines For Buying Trees, The University Of Tennessee Agricultural Extension Service Sep 2005

Sp662 Guidelines For Buying Trees, The University Of Tennessee Agricultural Extension Service

Forestry, Trees, and Timber

Plant high-quality stock to avoid future tree hazards associated with your tree. Planting poor stock will probably lead to more expense in the long run because of increased maintenance and a shorter life span. The best protocol is to purchase trees from a reputable nursery, establish careful specifications for your purchased tree and obtain a warranty for your tree.


Sp656 Shade And Flood Tolerance Of Trees, The University Of Tennessee Agricultural Extension Service Sep 2005

Sp656 Shade And Flood Tolerance Of Trees, The University Of Tennessee Agricultural Extension Service

Forestry, Trees, and Timber

Most trees have very specific requirements for how much sunlight or shade that they are able to endure. Some trees do well in full sunlight, while other trees do not perform as well. Some trees are more adaptable than others to varying amounts of sunlight. Recognizing the light requirements of different species of trees will assist in proper tree selection in the landscape and will promote healthy trees.

As with light requirements, different trees have different tolerances to flooding. This factsheet discusses and lists the comparative tolerance of trees to shade or sunlight and to flooding.


Sp657 Impacts Of Air Pollution On The Urban Forest, The University Of Tennessee Agricultural Extension Service Sep 2005

Sp657 Impacts Of Air Pollution On The Urban Forest, The University Of Tennessee Agricultural Extension Service

Forestry, Trees, and Timber

An average human breathes around 3,400 gallons of air each day. Included in each breath can be numerous noxious chemicals as well as suspended particles. Consequently, human lungs must cope with this pollution. It is well known that air pollution is hazardous to human health and of enormous concern today. However, the “lungs” of our urban areas, trees growing in and around our cities, must also contend with air pollution. Just as air pollution impacts humans, air pollution affects trees in a variety of ways.

Pollution has long been identified as harmful to trees. Historically, impacts of air pollution were …


Sp658 Lightning Protection For Trees, The University Of Tennessee Agricultural Extension Service Sep 2005

Sp658 Lightning Protection For Trees, The University Of Tennessee Agricultural Extension Service

Forestry, Trees, and Timber

Lightning is one of nature’s most powerful forces. Lightning can have devastating effects on people, property and trees. Each strike of lightning can reach more than five miles in length, and produce temperatures greater than 50,000 degrees Fahrenheit and an electrical charge of 100 million volts. At any given moment, there are 1,800 thunderstorms in progress somewhere across the earth. Lightning detection systems in the United States sense an average of 25 million lightning strikes per year.

Trees occupy a particularly susceptible position in the landscape, since they are often the tallest objects. Tall trees are the most vulnerable, especially …


Sp660 Lichens And Vines On Trees, The University Of Tennessee Agricultural Extension Service Sep 2005

Sp660 Lichens And Vines On Trees, The University Of Tennessee Agricultural Extension Service

Forestry, Trees, and Timber

No abstract provided.


Proposals For Community Discussion : A Quality Future For The Recreational Marron Fishery : A Five-Year Draft Strategy To Ensure The Long-Term Sustainability Of The Marron Fishery, Recreational Freshwater Fisheries Stakeholder Sub-Committee Sep 2005

Proposals For Community Discussion : A Quality Future For The Recreational Marron Fishery : A Five-Year Draft Strategy To Ensure The Long-Term Sustainability Of The Marron Fishery, Recreational Freshwater Fisheries Stakeholder Sub-Committee

Fisheries management papers

While some of the factors threatening the future of the marron fishery can be managed via traditional fisheries controls, many fall outside of the Department of Fisheries’ jurisdiction and require a ‘whole of Government’ approach to management. To help ensure a quality future for the recreational marron fishery, the Recreational Freshwater Fisheries Stakeholder Sub-committee (RFFSS) has now developed a set of draft management proposals designed to form the basis of a five-year management plan for the fishery.


Integrated Fisheries Management Report Abalone Resource., Department Of Fisheries Sep 2005

Integrated Fisheries Management Report Abalone Resource., Department Of Fisheries

Fisheries management papers

This report includes information on sustainability and sustainable harvest levels for Western Australian abalone stocks as required under the IFM policy. It also contains additional information on the current state of knowledge of the abalone resource, which provides a broader context for considering allocations. In particular, detailed information is provided on the Roe’s abalone resource in the Perth metropolitan area (commercial Area 7/recreational West Coast Zone).


Verbena Bracteata Lag. & Rodr., Gordon C. Tucker Sep 2005

Verbena Bracteata Lag. & Rodr., Gordon C. Tucker

Specimens by Name

No abstract provided.


The Use Of Transcriptomics To Address Questions In Behaviour: Production Of A Suppression Subtractive Hybridisation Library From Dominance Hierarchies Of Rainbow Trout, Lynne U. Sneddon, Javier Margareto, Andrew R. Cossins Sep 2005

The Use Of Transcriptomics To Address Questions In Behaviour: Production Of A Suppression Subtractive Hybridisation Library From Dominance Hierarchies Of Rainbow Trout, Lynne U. Sneddon, Javier Margareto, Andrew R. Cossins

Ethology Collection

Microarrays, or gene chips, are transforming the way that gene expression is measured by allowing us to determine the expression of thousands of genes from a sample. This gives immense power to examine gene expression on a global scale within individual animals and between animals. The scope for analysing complex animal functions at the molecular level is within our grasp. Relatively few studies have examined complex behaviours and correlated them with gene expression in the central nervous system. Here, we review the use of microarray technology in the dissection of behaviour and focus specifically on dominance status. A cDNA library …


Pineywoods Native Plant Center, Sept 2005, Sfa Gardens, Stephen F. Austin State University Sep 2005

Pineywoods Native Plant Center, Sept 2005, Sfa Gardens, Stephen F. Austin State University

SFA Gardens Newsletters

No abstract provided.


Community Hospital Risk Management, Vikas Singh Sep 2005

Community Hospital Risk Management, Vikas Singh

Vikas Singh

EXECUTIVE SUMMARY:

The Panacea community hospital in the Hot springs County, Arkansas is a big community hospital 52-inpatient beds providing medical. Surgical, mental health, pediatrics, Ob-gyn services and emergency care.

Of late there has been serious concern about the patient safety and quality of patient care delivered by the hospital. Close examination for the causes of the unsatisfactory quality of care and patient safety reveals that the hospital lacks proper and adequately supported risk management department. One employee only who is a part of the Quality Improvement cell sees the risk management program of the hospital and there is lack …


The Optimal Discovery Procedure For Large-Scale Significance Testing, With Applications To Comparative Microarray Experiments, John D. Storey, James Y. Dai, Jeffrey T. Leek Sep 2005

The Optimal Discovery Procedure For Large-Scale Significance Testing, With Applications To Comparative Microarray Experiments, John D. Storey, James Y. Dai, Jeffrey T. Leek

UW Biostatistics Working Paper Series

As much of the focus of genetics and molecular biology has shifted toward the systems level, it has become increasingly important to accurately extract biologically relevant signal from thousands of related measurements. The common property among these high-dimensional biological studies is that the measured features have a rich and largely unknown underlying structure. One example of much recent interest is identifying differentially expressed genes in comparative microarray experiments. We propose a new approach aimed at optimally performing many hypothesis tests in a high-dimensional study. This approach estimates the Optimal Discovery Procedure (ODP), which has recently been introduced and theoretically shown …


Density And Diversity Of Overwintering Birds In Managed Field Borders In Mississippi, Stephen J. Dinsmore, Mark D. Smith, Philip J. Barbour, L. Wes Burger Jr. Sep 2005

Density And Diversity Of Overwintering Birds In Managed Field Borders In Mississippi, Stephen J. Dinsmore, Mark D. Smith, Philip J. Barbour, L. Wes Burger Jr.

Stephen J Dinsmore

Grassland bird populations are sharply declining in North America. Changes in agricultural practices during the past 50 years have been suggested as one of the major causes of this decline. Field-border conservation practices encouraged by the U.S. Department of Agriculture's National Conservation Buffer Initiative meet many of the needs of sustainable agriculture and offer excellent opportunities to enhance local grassland bird populations within intensive agricultural production systems. Despite the abundant information on avian use of, and reproductive success in, strip habitats during the breeding season, few studies have examined the potential value of field borders for wintering birds. We planted …


Adaptation To Disruption Of The Electron Transfer Pathway For Fe(Iii) Reduction In Geobacter Sulfurreducens, Ching Leang, Lorrie A. Adams, Kuk-Jeong Chin, Kelly P. Nevin, Barbara A. Methѐ, Jennifer Webster, Manju L. Sharma, Derek Lovley Sep 2005

Adaptation To Disruption Of The Electron Transfer Pathway For Fe(Iii) Reduction In Geobacter Sulfurreducens, Ching Leang, Lorrie A. Adams, Kuk-Jeong Chin, Kelly P. Nevin, Barbara A. Methѐ, Jennifer Webster, Manju L. Sharma, Derek Lovley

Kelly Nevin

Previous studies demonstrated that an outer membrane c-type cytochrome, OmcB, was involved in Fe(III) reduction in Geobacter sulfurreducens. An OmcB-deficient mutant was greatly impaired in its ability to reduce both soluble and insoluble Fe(III). Reintroducing omcB restored the capacity for Fe(III) reduction at a level proportional to the level of OmcB production. Here, we report that the OmcB-deficient mutant gradually adapted to grow on soluble Fe(III) but not insoluble Fe(III). The adapted OmcB-deficient mutant reduced soluble Fe(III) at a rate comparable to that of the wild type, but the cell yield of the mutant was only ca. 60% of that …


Rab11 Gtpase-Regulated Membrane Trafficking Is Crucial For Tip-Focused Pollen Tube Growth In Tobacco, B. H. De Graaf, Alice Cheung, T. Andreyeva, K. Levasseur, M. Kieliszewski, H. M. Wu Sep 2005

Rab11 Gtpase-Regulated Membrane Trafficking Is Crucial For Tip-Focused Pollen Tube Growth In Tobacco, B. H. De Graaf, Alice Cheung, T. Andreyeva, K. Levasseur, M. Kieliszewski, H. M. Wu

Alice Cheung

Pollen tube growth is a polarized growth process whereby the tip-growing tubes elongate within the female reproductive tissues to deliver sperm cells to the ovules for fertilization. Efficient and regulated membrane trafficking activity incorporates membrane and deposits cell wall molecules at the tube apex and is believed to underlie rapid and focused growth at the pollen tube tip. Rab GTPases, key regulators of membrane trafficking, are candidates for important roles in regulating pollen tube growth. We show that a green fluorescent protein-tagged Nicotiana tabacum pollen-expressed Rab11b is localized predominantly to an inverted cone-shaped region in the pollen tube tip that …


Environmental Prevalence And Persistence Of Salmonella Spp. In Outdoor Swine Wallows, Anna K. Johnson, T. R. Callaway, J. L. Morrow, J. W. Dailey, F. M. Wallace, E. A. Wagstrom, J. J. Mcglone, A. R. Lewis, S. E. Dowd, T. L. Poole, T. S. Edrington, R. C. Anderson, K. J. Genovese, J. A. Byrd, R. . Harvey, D. J. Nisbet Sep 2005

Environmental Prevalence And Persistence Of Salmonella Spp. In Outdoor Swine Wallows, Anna K. Johnson, T. R. Callaway, J. L. Morrow, J. W. Dailey, F. M. Wallace, E. A. Wagstrom, J. J. Mcglone, A. R. Lewis, S. E. Dowd, T. L. Poole, T. S. Edrington, R. C. Anderson, K. J. Genovese, J. A. Byrd, R. . Harvey, D. J. Nisbet

Anna K. Butters-Johnson

Swine can harbor Salmonella in their gastrointestinal tracts. It has been estimated that up to 48% of the U.S. swine herd may carry Salmonella. Housing sows in farrowing stalls has become controversial due to animal welfare-based criticisms. An alternative production system is to keep sows outdoors on pasture with access to individual farrowing huts. This study was designed to determine the effects of two production systems on indicator bacteria and Salmonella of sows housed indoors in farrowing stalls (n = 52) compared to sows housed outdoors (n = 52) in English style huts. Each farrowing radial contained one wallow, from …


Dominant Processes Controlling Water Chemistry Of The Pecos River In American Southwest, Fasong Yuan, Seiichi Miyamoto Sep 2005

Dominant Processes Controlling Water Chemistry Of The Pecos River In American Southwest, Fasong Yuan, Seiichi Miyamoto

Biological, Geological, and Environmental Faculty Publications

Here we show an analysis of river flow and water chemistry data from eleven gauging stations along the Pecos River in eastern New Mexico and western Texas, with time spanning 1959–2002. Analysis of spatial relationship between the long-term average flow and total dissolved solids (TDS) concentration allows us to illuminate four major processes controlling river chemistry, namely saline water addition, evaporative concentration with salt gain or loss, dilution with salt gain or loss, and salt storage. Of the 10 river reaches studied, six reaches exhibit the process dominated by evaporative concentration or freshwater dilution with little change in salt load. …


An Investigation Of The Changes Of Species Richness And Distribution Of The Unionidae (Bivalvia: Molusca) Within The Pamunkey Watershed, William Robert Lees Sep 2005

An Investigation Of The Changes Of Species Richness And Distribution Of The Unionidae (Bivalvia: Molusca) Within The Pamunkey Watershed, William Robert Lees

Master's Theses

A survey of the Unionidae within the Pamunkey Watershed was conducted to investigate changes in distribution and species richness compared to a previous survey (Riddick, 1973) conducted over 30 years ago. Species richness decreased from 10 species in the previous survey to four species in the present survey. Notable increases of species richness were found in the upper South Anna and the lower North Anna regions, while sizable decreases were found in the lower South Anna and the upper and middle regions of the Pamunkey River. Regression analyses and t-tests comparing mussel survey data with habitat parameters were conducted to …


2005 Shellfish Indicator Report, Phil Trowbridge Sep 2005

2005 Shellfish Indicator Report, Phil Trowbridge

PREP Reports & Publications

The New Hampshire Estuaries Project (NHEP) is part of the U.S. Environmental Protection Agency’s National Estuary Program, which is a joint local/state/federal program established under the Clean Water Act with the goal of protecting and enhancing nationally significant estuarine resources. The NHEP is funded by the EPA and is administered by the University of New Hampshire. The NHEP’s Comprehensive Conservation and Management Plan for New Hampshire’s estuaries was completed in 2000 and implementation is ongoing. The Management Plan outlines key issues related to management of New Hampshire's estuaries and proposes strategies (Action Plans) that are expected to preserve, protect, and …


A Five Year Management Strategy For Recreational Fishing On The South Coast. The Minister For Fisheries' Decision In Response To The Final Report Of The South Coast Recreational Fishing Working Group., Jon Ford (Minister For Fisheries; The Kimberley, Pilbara And Gascoyne) Sep 2005

A Five Year Management Strategy For Recreational Fishing On The South Coast. The Minister For Fisheries' Decision In Response To The Final Report Of The South Coast Recreational Fishing Working Group., Jon Ford (Minister For Fisheries; The Kimberley, Pilbara And Gascoyne)

Fisheries management papers

After careful consideration of the South Coast Recreational Fishing Working Group’s recommendations and the wide range of issues raised in submissions, I have made my decisions in respect to the future management arrangements for recreational fishing in South Coast Region. I believe the new management arrangements which will be implemented in 1 January 2006 will go a long way to protecting recreational fishing quality and meeting the long term needs for the sustainable management of recreational fishing. I did note that some of the most pressing concerns raised during public meetings, and in submissions, related to the interaction between the …


Patients With Metabolic Syndrome: A Study Using Automated Dietary Assessment In Primary Care, Y. C. Probst Sep 2005

Patients With Metabolic Syndrome: A Study Using Automated Dietary Assessment In Primary Care, Y. C. Probst

Faculty of Health and Behavioural Sciences - Papers (Archive)

An automated dietary assessment website has been developed for patients with metabolic syndrome. Computers have been set up in local GP practices to which the GP may refer their patients. These patients enter their dietary information into the website and receive an individualised dietary prescription put together by a dietitian. This study outlines the profile of patients using the website and their rates of completion of the assessment. Recruited patients were primarily female(66%). Ranging between 22 and 75 years of age patients reported to be overweight(77%), have high cholesterol (53%), elevated blood pressure (54%) and/or type 2 diabetes mellitus (35%). …


Going For The Bottle, Winston J. Craig Sep 2005

Going For The Bottle, Winston J. Craig

Lake Union Herald

No abstract provided.