52 resultados para Environmental Health


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Table of Contents: Least Bell’s Vireos Are Back, page 3 San Joaquin River National Wildlife Refuge hosted totally unexpected residents last year. Managing Ocean Wildlife, page 5 A new agreement should help in managing marine resources. Focus on . . . Endangered Species, pages 10-21 Whether it’s the fastest land mammal or the tiniest mussel, refuges work on behalf of endangered species. Peeping at Peeps, page 24 Shorebirds can be tough to identify. Classroom and fields trips helped.

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Table of Contents: Make Way for Ducklings, page 4 With help from refuge experts, roads and bridges can be built to accommodate wildlife. Katrina Heroes, pages 8-9 Extraordinary diaries from refuge staffers who were there when Katrina came calling. Focus on…Reaching Youth , page 10-15 Refuges give young people a chance to learn art, poetry, native culture, service – and stewardship. Nisqually: Growing and Restoring, page 17 The Outstanding Refuge Plan of 2005 opens the door to the largest estuary restoration project in the Pacific Northwest.

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Table of Contents: After Rehab, Vessel Starts Over in Alaska The latest addition to the Refuge System’s fleet of vessels in Alaska spent much of its life on the wrong side of the law. In Arizona, Refuges Are Oases for Fish Fish in the desert? Yes. At San Bernardino and Leslie Canyon National Wildlife Refuges, protecting fish is in the establishing mission. FOCUS: Marine National Monuments The four marine national monuments are among the Refuge System’s most distinctive components. As such, they present special challenges, rare opportunities and unparalleled beauty. Can You Hear Me Now? Looking for a low-cost way to connect with visitors? Try a cellphone tour. It’s easy to set up.

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Table of Contents: White Nose Syndrome News CWD Found in Virginia Serosurveys of Feral Swine AI Serology in Wild Birds Chagas Disease Studies SCWDS Bont Tick Surveillance Brain Tumor in Deer Exotic Animal Imports and Public Health Loss of Two SCWDS Friends

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Table of Contents: Piroplasmosis Hits Missouri Horses Cytauxzoon felis in Wild Felids SCIF & Mossy Oak Fund HD Research Hardware Disease in a Key Deer Wildlife Poisoning in Kansas Swine Brucellosis Infects Hog Hunters SCWDS Personnel Changes NWHC Has New Director New USDI Publication on Bats Recent SCWDS Publications Available

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Table of Contents: Clams & AI Virus SCWDS Funded to Study WNS USDA Program Changes Proposed TB in Captive Cervids CWD Prions in Deer Feces TWS Position Statement on Lead WDA Awards For SCWDS Staff New Brochure for Hog Hunters

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Table of Contents: USDA Seeks Comments on New CWD Rule Some of the Intricacies of CWD 3rd International CWD Symposium White Nose Syndrome Update Wildlife Poisoning in Kansas Salmonellosis in Your Backyard Trichomonosis in Songbirds Dr. Al Franzmann Staff & Student Recognition

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Table of Contents: HD in 2007: A Year to Remember Ecology of AIV in Shorebirds New USDA Brucellosis Proposal TWS Seeks Comments on Draft Lead Policy Unusual Eagle Death New SCWDS Grad Students Tennessee Director Retiring 3rd International CWD Symposium Another SCWDS Student Award

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Table of Contents: Piroplasmosis in Florida Horses Bovine TB Update Newcastle Disease in Cormorants Frog Virus in a Box Turtle SCWDS Vesicular Stomatitis Research Update Faculty and Staff Changes at SCWDS Lead Study Results Reported Lead Ammo and Tackle Review Our Energizer Bunny

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Table of Contents: Orbiviruses New & Old - What Do We Need to Know? Orbivirus Vector Surveys Studies on H5N1 HPAI Virus in Swans and Geese Dr. Justin Brown Awards Impacted Turkey Gizzard Regional Disease Workshops in 2008-09 Dove Disease Research at SCWDS Some Staff Changes

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Table of Contents: SCWDS History Continued: The Domestic Animal Connection WNV Still With Us: Other Arboviruses May Follow Avian Influenza Update – Spring 2007 Scholarship in Memory of Ed Couvillion Chronic Lead Poisoning in Raptors Unusual Deer Tumor Kevin Keel Receives Award New Edition of Wild Bird Diseases Book

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Table of Contents: SCWDS Celebrates 50 Years More Bovine TB in Minnesota Developments in CWD Surveillance and Research Federal CWD Rule Update Tularemia in Backyard Wildlife Osteochondromas in Two Deer Invasive Exotic Animals in the Southeast New Field Manual Sales

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During the last decade, leaf tatters has been reported in white oak and hackberry across several Midwestern states. Herbicide spray drift studies have shown that chloroacetamides can induce leaf tatters. The objectives of this research were to: 1) identify vulnerable bud developmental stages in hackberry and 2) determine if different commercial chloroacetamides affect severity of leaf tatters. In 2008, a preliminary spray drift experiment was conducted on mature trees from a former hackberry provenance test stand. Acetochlor (Harness), S-metolachlor (Dual II Magnum), and dimethenamid (Outlook) were applied at concentrations approximating 27%, 54%, 81%, or 108% of the recommended field rate. Three developmental stages before bud burst were present on the selected trees. Leaf tatters did not develop on the selected hackberry trees. However, symptoms were observed on neighboring, non-target hackberry trees, which had been in the leaf unfolding and expanding stages at the time of spraying. In 2009, three year old hackberry seedlings were treated with 1%, 10%, and 100% of the recommended field rate of acetochlor (Harness), S-metolachlor (Dual II Magnum), and dimethenamid (Outlook). Folded buds and two unfolding leaf developmental stages were present on seedlings. Another spray study was conducted on 32 mature hackberry trees from the provenance stand. A solution of 5608 mg a.i./L dimethenamid (Outlook) was applied to trees in the unfolding and/or expanding leaf stage. Treated trees represented four provenances. Image analysis was used to calculate seedling and mature tree leaf areas and estimate the seedling percentage of leaf tissue loss. Foliar damage was not significantly different between seedlings treated with water, 1%, or 10% of the field rate. Foliar damage was significantly different between seedlings treated with 1% or 100% of the field rate, and between seedlings treated with 10% or 100% of the field rate. Foliar damage in seedlings was not significantly different between the developmental stages. Additionally, symptoms of leaf tatters were observed on the treated mature hackberry. Future studies should focus on chloroacetamide concentrations above 10% of the recommended field rate.

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Abstract The goal of this project is to evaluate the effectiveness of bioswells in protecting water quality from urban runoff. The hypothesis tested in this project is that water in bioswells improves water quality. Water quality in both a bioswell and an underground concrete lined ditch, both containing ground and surface water, were tested for certain water quality parameters. These parameters consisted of: Dissolved Oxygen, pH, water temperature, weather temperature, Total Dissolved Solids, Specific Conductivity, Alkalinity, Total Dissolved Carbon, Chemical Oxygen Demand, and depth and width of the sampling site. An additional contaminant that was looked at was motor oil. This was measured by comparing Total Organic Carbon with Chemical Oxygen Demand. A variety of different methods to measure the water quality parameters were utilized. The concrete site had more stable readings, but much higher water temperatures. However, the bioswell water is mainly from surface water runoff, and the underground concrete lined pipe is from underground water, so the two cannot be directly compared. The bioswell had high readings, especially pertaining to Oxygen Demand, Total Organic Carbon, and Specific Conductivity in early test dates. But, these readings improved as they were filtered though the bioswell. As plant activity increased and the weather began to warm up there were more stable readings. It is concluded that bioswells are an effective way to reduce problems associated with urban runoff pertaining to certain water quality parameters.

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Research has provided no definitive answers on whether PET plastic bottles or aluminum cans are a more environmentally sustainable choice as soda containers. This paper researches the fuel used in recycling each of these materials from Yellowstone National Park to processing locations. The data is used to determine which of these alternatives use less fuel in this process. It was found that plastics use more fuel when transported from Yellowstone National Park to the processing center. Aluminum uses less fuel per ton to transport from Yellowstone to the processing center. The conclusions from this research may have implications on which material would be advised to use in selling soda in Yellowstone National Park.