944 resultados para Credits number


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Table of Contents: Prairie Science Class Celebrates Anniversary, page 16 Program integrates environmental education into routine public school curriculum. Focus on Hunting, page 8-15 While the National Wildlife Refuge System has been shaped by a variety of public concerns, hunters were among the early, substantive voices. Texas Brochures Turned Some Heads, page 17 South Texas Refuge series of brochures are notable for their beauty and more. Forty Years for the Wilderness Act, Page 18 National Wilderness Preservation System protects more than 105.7 million acres, including more than 20 million acres on 65 refuges.

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Table of Contents: Do-It-Yourself Project Makes Sparks, page 3 The Departments of the Interior and Energy spotlight San Andres Refuge’s innovative (and largely homemade) renewable energy program. In Oregon, a Refuge Teaches Teachers, page 5 Tualatin River National Wildlife Refuge’s ambitious environmental education program acquires a solid reputation. Focus on . . . International Conservation, pages 6-11 National resource managers around the world look to the Refuge System for on-the-scene advice and training. Taking Pride, page 16 A former refuge complex project leader in Texas and a super-volunteer in Georgia win 2008 Take Pride in America Awards.

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Table of Contents: Celebrating 20 Years of Science on the M/ V Tiglax, page 5 Kevin Bell is honored as Captain of the largest ship operated by the National Wildlife Refuge System. Focus on…A River Runs Through It, pages 8-15 Rivers on refuges are managed for recreation, habitat restoration, water rights and sheer beauty. The Fight Against Giant Salvinia, page 18 Caddo Lake National Wildlife Refuge in Texas is fighting a weed that can travel three-quarters of a mile in 24 hours. Awards, page 21 From protecting the land to going “green,” awards recognize excellence.

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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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Surveys of commercial markets combined with molecular taxonomy (i.e. molecular monitoring) provide a means to detect products from illegal, unregulated and/or unreported (IUU) exploitation, including the sale of fisheries bycatch and wild meat (bushmeat). Capture-recapture analyses of market products using DNA profiling have the potential to estimate the total number of individuals entering the market. However, these analyses are not directly analogous to those of living individuals because a ‘market individual’ does not die suddenly but, instead, remains available for a time in decreasing quantities, rather like the exponential decay of a radioactive isotope. Here we use mitochondrial DNA (mtDNA) sequences and microsatellite genotypes to individually identify products from North Pacific minke whales (Balaenoptera acutorostrata ssp.) purchased in 12 surveys of markets in the Republic of (South) Korea from 1999 to 2003. By applying a novel capture-recapture model with a decay rate parameter to the 205 unique DNA profiles found among 289 products, we estimated that the total number of whales entering trade across the five-year survey period was 827 (SE, 164; CV, 0.20) and that the average ‘half-life’ of products from an individual whale on the market was 1.82 months (SE, 0.24; CV, 0.13). Our estimate of whales in trade (reflecting the true numbers killed) was significantly greater than the officially reported bycatch of 458 whales for this period. This unregulated exploitation has serious implications for the survival of this genetically distinct coastal population. Although our capture-recapture model was developed for specific application to the Korean whale-meat markets, the exponential decay function could be modified to improve the estimates of trade in other wildmeat or fisheries markets or abundance of living populations by noninvasive genotyping.

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Optical networks based on passive star couplers and employing wavelength-division multiplexing (WDhf) have been proposed for deployment in local and metropolitan areas. Amplifiers are required in such networks to compensate for the power losses due to splitting and attenuation. However, an optical amplifier has constraints on the maximum gain and the maximum output power it can supply; thus optical amplifier placement becomes a challenging problem. The general problem of minimizing the total amplifier count, subject to the device constraints, is a mixed-integer non-linear problem. Previous studies have attacked the amplifier placement problem by adding the “artificial” constraint that all wavelengths, which are present at a particular point in a fiber, be at the same power level. In this paper, we present a method to solve the minimum amplifier- placement problem while avoiding the equally powered- wavelength constraint. We demonstrate that, by allowing signals to operate at different power levels, our method can reduce the number of amplifiers required in several small to medium-sized networks.

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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