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Page 1729, results 43201 - 43225

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Potential use of weather radar to study movements of wintering waterfowl
Lori A. Randall, Robert H. Diehl, Barry C. Wilson, Wylie C. Barrow, Clinton W. Jeske
2011, Journal of Wildlife Management (75) 1324-1329
To protect and restore wintering waterfowl habitat, managers require knowledge of routine wintering waterfowl movements and habitat use. During preliminary screening of Doppler weather radar data we observed biological movements consistent with routine foraging flights of wintering waterfowl known to occur near Lacassine National Wildlife Refuge (NWR), Louisiana. During the...
Pore-throat sizes in sandstones, siltstones, and shales: Reply
Philip H. Nelson
2011, American Association of Petroleum Geologists Bulletin (95) 1448-1453
In his discussion of my article (Nelson, 2009), W. K. Camp takes issue with the concept that buoyancy is not the dominant force in forming and maintaining the distribution of gas in tight-gas accumulations (Camp, 2011). I will restrict my response to the issues he raised regarding buoyant versus nonbuoyant...
No evidence of interference competition among the invasive feral pig and two native peccary species in a Neotropical wetland
Luiz G. R. Oliveira-Santos, Robert M. Dorazio, Walfrido M. Tomas, Guilherme Mourao, Fernando A.S. Fernandez
2011, Journal of Tropical Ecology (27) 557-561
In South America, the invasive feral pig (Sus scrofa Linnaeus) has become established in Argentina, Uruguay, Paraguay and in a wide range within Brazil, along the southern half of the Atlantic Forest, in the cerrado (savanna) and in the Pantanal wetland. The geographical ranges of the two most common South...
Least Bittern nesting record in Maine
Paul U. Wilson, Jerry R. Longcore
2011, Northeastern Naturalist (18) 382-385
In June 2001, we located an active Ixobrychus exilis (Least Bittern) nest in Bass Harbor marsh on Mount Desert Island, Hancock County, ME. Only 2 other descriptions of Least Bittern nests exist for Maine, although based on other breeding evidence, the species is known to breed elsewhere in the state....
Population genetic structure and conservation genetics of threatened Okaloosa darters (Etheostoma okaloosae)
James D. Austin, Howard L. Jelks, Bill Tate, Aria R. Johnson, Frank Jordan
2011, Conservation Genetics (12) 981-989
Imperiled Okaloosa darters (Etheostoma okaloosae) are small, benthic fish limited to six streams that flow into three bayous of Choctawhatchee Bay in northwest Florida, USA. We analyzed the complete mitochondrial cytochrome b gene and 10 nuclear microsatellite loci for 255 and 273 Okaloosa darters, respectively. Bayesian clustering analyses and AMOVA reflect congruent...
Water-quality requirements, tolerances, and preferences of pallid sturgeon Scaphirhynchus albus in the lower Missouri River
Dale W. Blevins
2011, Scientific Investigations Report 2011-5186
Although numerous studies have been completed on pallid sturgeon populations and behavior, few have addressed the potential for water-quality characteristics to limit recruitment and population success of pallid sturgeon. Literature on sturgeon and water-quality data indicates recruitment of pallid sturgeon may be limited by several water-quality characteristics of the lower...
Flood of June 11, 2010, in the Upper Little Missouri River watershed, Arkansas
Robert R. Holmes Jr., Daniel M. Wagner
2011, Scientific Investigations Report 2011-5194
Catastrophic flash flooding occurred in the early morning hours of June 11, 2010, in the upper Little Missouri River and tributary streams in southwest Arkansas. The flooding, which resulted in 20 fatalities and substantial property damage, was caused by as much as 4.7 inches of rain falling in the upper...
The skin: The many functions of fish integument
Diane G. Elliott
Anthony P. Farrell, editor(s)
2011, Book chapter, Encyclopedia of fish physiology: from genome to environment
The integument or skin is the envelope that not only separates and protects a fish from its environment, but also provides the means through which most contacts with the outer world are made. It is a large organ and is continuous with the linings of all body openings, and also...
Continuous salinity and temperature data from San Francisco Estuary, 1982-2002: Trends and the salinity-freshwater inflow relationship
Gregory Shellenbarger, David H. Schoellhamer
2011, Journal of Coastal Research (27) 1191-1201
The U.S. Geological Survey and other federal and state agencies have been collecting continuous temperature and salinity data, two critical estuarine habitat variables, throughout San Francisco estuary for over two decades. Although this dynamic, highly variable system has been well studied, many questions remain relating to the effects of freshwater...
Water quality and amphibian health in the Big Bend region of the Rio Grande Basin
Bibek Sharma, F. Hu, J.A. Carr, Reynaldo Patino
2011, Texas Journal of Science (63) 233-233
Male and female Rio Grande leopard frogs (Rana berlandieri) were collected in May 2005 from the main stem and tributaries of the Rio Grande in the Big Bend region of Texas. Frogs were examined for (1) incidence of testicular ovarian follicles in males; (2) thyroid epithelial cell height, a potential...
Breast and cervical cancer screening patterns among American Indian women at IHS clinics in Montana and Wyoming
Robin T. Wilson, Jennifer Giroux, Kathryn R. Kasicky, Bethany H. Fatupaito, Eric C. Wood, Renee Crichlow, Neil A. Sun Rhodes, Jennifer Tingueley, Andrea Walling, Kathryn Langwell, N. Cobb
2011, Public Health Reports (126) 806-815
Objectives.We investigated factors associated with primary and secondary breast and cervical cancer screening among American Indian (AI) women receiving care from the Indian Health Service (IHS) in Montana and Wyoming.Methods.Rates of primary screening (i.e., screening without evidence of a prior abnormal) and secondary screening during a three-year period (2004–2006) were...
Refuge habitats for fishes during seasonal drying in an intermittent stream: movement, survival and abundance of three minnow species
S.W. Hodges, Daniel D. Magoulick
2011, Aquatic Sciences (73) 513-522
Drought and summer drying can be important disturbance events in many small streams leading to intermittent or isolated habitats. We examined what habitats act as refuges for fishes during summer drying, hypothesizing that pools would act as refuge habitats. We predicted that during drying fish would show directional movement into...
Simultaneous speciation of arsenic, selenium, and chromium: species, stability, sample preservation, and analysis of ash and soil leachates
Ruth E. Wolf, Suzette A. Morman, Philip L. Hageman, Todd M. Hoefen, Geoffrey S. Plumlee
2011, Analytical and Bioanalytical Chemistry (9) 2733-2745
An analytical method using high-performance liquid chromatography separation with inductively coupled plasma mass spectrometry (ICP-MS) detection previously developed for the determination of Cr(III) and Cr(VI) has been adapted to allow the determination of As(III), As(V), Se(IV), Se(VI), Cr(III), and Cr(VI) under the same chromatographic conditions. Using this method, all six...
Estimating eruption temperature from thermal emission spectra of lava fountain activity in the Erta'Ale (Ethiopia) volcano lava lake: Implications for observing Io's volcanoes
Ashley G. Davies, Laszlo P. Keszthelyi, Alfred S. McEwen
2011, Geophysical Research Letters (38)
We have analysed high-spatial-resolution and high-temporal-resolution temperature measurements of the active lava lake at Erta'Ale volcano, Ethiopia, to derive requirements for measuring eruption temperatures at Io's volcanoes. Lava lakes are particularly attractive targets because they are persistent in activity and large, often with ongoing lava fountain activity that exposes lava...
A promising tool for subsurface permafrost mapping-An application of airborne geophysics from the Yukon River Basin, Alaska
Jared E. Abraham
2011, Fact Sheet 2011-3133
Permafrost is a predominant physical feature of the Earth's Arctic and Subarctic clines and a major consideration encompassing ecosystem structure to infrastructure engineering and placement. Perennially frozen ground is estimated to cover about 85 percent of the state of Alaska where northern reaches are underlain with continuous permafrost and parts...
Mineral resource of the month: tin
James F. Carlin Jr.
2011, Earth (56) 21-21
Tin was one of the earliest-known metals. Because of its hardening effect on copper, tin was used in bronze implements as early as 3500 B.C. Bronze, a copper-tin alloy that can be sharpened and is hard enough to retain a cutting edge, was used during the Bronze Age in construction...
Intercontinental gene flow among western arctic populations of Lesser Snow Geese
Rainy I. Shorey, Kim T. Scribner, Jeannette Kanefsky, Michael D. Samuel, Scot V. Libants
2011, The Condor (113) 735-746
Quantifying the spatial genetic structure of highly vagile species of birds is important in predicting their degree of population demographic and genetic independence during changing environmental conditions, and in assessing their abundance and distribution. In the western Arctic, Lesser Snow Geese (Chen caerulescens caerulescens) provide an example useful for evaluating...
Survey of invasive ants at Hakalau Forest National Wildlife Refuge
Robert W. Peck, Paul C. Banko
2011, Technical Report HCSU-027
We conducted a survey for invasive ants at Hakalau Forest National Wildlife Refuge, Hawai‘i Island, during 2009–2010 to evaluate potential threats to native arthropod communities and food webs. The focal area of the survey was the upper portion of the Hakalau Unit of the refuge, where native forest was being...
National Stream Quality Accounting Network and National Monitoring Network Basin Boundary Geospatial Dataset, 2008–13
Nancy T. Baker
2011, Data Series 641
This report and the accompanying geospatial data were created to assist in analysis and interpretation of water-quality data provided by the U.S. Geological Survey's National Stream Quality Accounting Network (NASQAN) and by the U.S. Coastal Waters and Tributaries National Monitoring Network (NMN), which is a cooperative monitoring program of Federal,...
Department of the Interior Climate Science Centers
Sonya A. Jones
2011, Fact Sheet 2011-3025
What is a Climate Science Center? On September 14, 2009, the Secretary of the Interior signed a Secretarial Order (No. 3289) entitled, "Addressing the Impacts of Climate Change on America's Water, Land, and Other Natural and Cultural Resources." The Order effectively established the U.S. Department of the Interior (DOI) Climate...
The Moon Mineralogy Mapper (M3) imaging spectrometer for lunar science: Instrument description, calibration, on‐orbit measurements, science data calibration and on‐orbit validation
C. Pieters, P. Mouroulis, M. Eastwood, J. Boardman, R.O. Green, T. Glavich, P. Isaacson, A. Chatterjee, R. Clark, D. Barr, M. Annadurai, S. Besse, D. Cate, L. Cheek, J. Combe, D. Dhingra, V. Essandoh, S. Geier, J.N. Goswami, R. Green, V. Haemmerle, J. Head, L. Hovland, S. Hyman, R. Klima, T. Koch, G. Kramer, A.S.K. Kumar, K. Lee, S. Lundeen, E. Malaret, T. McCord, S. McLaughlin, J. Mustard, J. Nettles, N. Petro, K. Plourde, C. Racho, J. Rodriguez, C. Runyon, G. Sellar, C. Smith, H. Sobel, M. Staid, J. Sunshine, L. Taylor, K. Thaisen, S. Tompkins, H. Tseng, G. Vane, P. Varanasi, M. White, D. Wilson
2011, Journal of Geophysical Research E: Planets (116) 1-31
The NASA Discovery Moon Mineralogy Mapper imaging spectrometer was selected to pursue a wide range of science objectives requiring measurement of composition at fine spatial scales over the full lunar surface. To pursue these objectives, a broad spectral range imaging spectrometer with high uniformity and high signal-to-noise ratio capable of...
Taxonomy of Greater White-fronted Geese (Aves: Anatidae)
Richard C. Banks
2011, Proceedings of the Biological Society of Washington (124) 226-233
Five subspecies of the Greater White-fronted Goose, Anser albifrons (Scopoli, 1769), have been named, all on the basis of wintering birds, and up to six subspecies have been recognized. There has been confusion over the application of some names, particularly in North America, because of lack of knowledge of the...
Lineage diversification and morphological evolution in a large-scale continental radiation: The neotropical ovenbirds and woodcreepers (Aves: Furnariidae)
Elizabeth P. Derryberry, Santiago Claramunt, Graham Derryberry, R. Terry Chesser, Joel Cracraft, Alexandre Aleixo, Jorge Perez-Eman, J.V. Remsen Jr., Robb T. Brumfield
2011, Evolution (65) 2973-2986
Patterns of diversification in species-rich clades provide insight into the processes that generate biological diversity. We tested different models of lineage and phenotypic diversification in an exceptional continental radiation, the ovenbird family Furnariidae, using the most complete species-level phylogenetic hypothesis produced to date for a major avian clade (97% of...