Exertional myopathy in whooping cranes (Grus americana) with prognostic guidlelines
C. S. Hanley, Nancy J. Thomas, Joanne R. Paul-Murphy, Barry K. Hartup
2005, Journal of Zoo and Wildlife Medicine (36) 489-497
Exertional myopathy developed in three whooping cranes (Grus americana) secondary to routine capture, handling, and trauma. Presumptive diagnosis of exertional myopathy was based on history of recent capture or trauma, clinical signs, and elevation of aspartate aminotransferase, alanine aminotransferase, creatine kinase, lactate dehydrogenase, and serum potassium. Treatments were attempted...
Geography of spring landbird migration through riparian habitats in southwestern North America
S. K. Skagen, J.F. Kelly, Charles van Riper III, R.L. Hutto, D.M. Finch, D.J. Krueper, Cynthia Melcher
2005, The Condor (107) 212-227
Migration stopover resources, particularly riparian habitats, are critically important to landbirds migrating across the arid southwestern region of North America. To explore the effects of species biogeography and habitat affinity on spring migration patterns, we synthesized existing bird abundance and capture data collected in riparian habitats of the borderlands region...
2004 annual progress report: Stratton Sagebrush Hydrology Study Area: Establishment of a long-term research site in a high-elevation sagebrush steppe
Kate Schoenecker, Bob Lange, Mike Calton
2005, Open-File Report 2005-1426
In 2004 the U.S. Geological Survey, Fort Collins Science Center (FORT) and the Bureau of Land Management (BLM), Rawlins Field Office (RFO), began a cooperative effort to reestablish the Stratton Sagebrush Hydrology Study Area (Stratton) as a research location, with the goal of making it a site for long-term research...
Cottonwood in the Missouri Breaks National Monument
Gregor T. Auble, Michael L. Scott, Joseph Frazier, Chad Krause, Michael F. Merigliano
2005, Fact Sheet 2005-3132
Concerns about cottonwood along the Wild and Scenic reach of the upper Missouri River include declining forests of sparse old trees with little recruitment of new individuals, impacts of cattle crazing and recreational use, and effects of flow alterations from operation of upstream dams and changes in tributary inflows....
The Conservation Reserve Program: Planting for the future. Proceedings of a National Conference, Fort Collins, Colorado, June 6-9, 2004
Arthur W. Allen, Mark W. Vandever, editor(s)
2005, Scientific Investigations Report 2005-5145
In June 2004 the U.S. Department of Agriculture’s Farm Service Agency (FSA), with support from the U.S. Geological Survey (USGS), held a three-day symposium on the Conservation Reserve Program (CRP) in Fort Collins, Colorado. These proceedings contain papers by most of those who made presentations at the symposium, but some...
Statistical analysis of long-term hydrologic records for selection of drought-monitoring sites on Long Island, New York
Ronald J. Busciolano
2005, Scientific Investigations Report 2004-5152
Ground water is the sole source of water supply for more than 3 million people on Long Island, New York. Large-scale ground-water pumpage, sewering systems, and prolonged periods of below-normal precipitation have lowered ground-water levels and decreased stream-discharge in western and central Long Island. No method is currently (2004) available...
USGS: providing scientific understanding of the sagebrush biome
Water Resources Division, U.S. Geological Survey
2005, Fact Sheet 2005-3091
Early explorers wrote about the vast sea of sagebrush that stretched in front of them. Today, the consequences of land-use practices, invasion by exotic plants, and altered disturbance regimes have touched virtually all of these seemingly endless expanses. Increasing human populations in the western United States, the infrastructure necessary to...
Movements of walruses radio-tagged in Bristol Bay, Alaska
Chadwick V. Jay, Susan Hills
2005, Arctic (58) 192-202
Satellite radio-location data from 57 adult male Pacific walruses (Odobenus rosmarus divergens) were used to estimate haul-out fidelity, broadly describe seasonal foraging distributions, and determine the approximate timing of autumn migration from Bristol Bay, Alaska. Data were collected intermittently during 1987–91 and 1995–2000, primarily during the period from May to...
Home range and space use patterns of flathead catfish during the summer-fall period in two Missouri streams
Jason C. Vokoun, Charles F. Rabeni
2005, Transactions of the American Fisheries Society (134) 509-517
Flathead catfish Pylodictis olivaris were radio-tracked in the Grand River and Cuivre River, Missouri, from late July until they moved to overwintering habitats in late October. Fish moved within a definable area, and although occasional long-distance movements occurred, the fish typically returned to the previously occupied area. Seasonal...
Host specificity of Sacculina carcini, a potential biological control agent of the introduced European green crab Carcinus maenas in California
Jeffrey H. R. Goddard, Mark E. Torchin, Armand M. Kuris, Kevin D. Lafferty
2005, Biological Invasions (7) 895-912
The European green crab, Carcinus maenas, is an introduced marine predator established on the west coast of North America. We conducted laboratory experiments on the host specificity of a natural enemy of the green crab, the parasitic barnacle Sacculina carcini, to provide information on the safety of its use as a possible...
The introduced ribbed mussel (Geukensia demissa) in Estero de Punta Banda, Mexico: Interactions with the native cord grass, Spartina foliosa
Mark E. Torchin, Ryan F. Hechinger, Todd C. Huspeni, Kathleen L. Whitney, Kevin D. Lafferty
2005, Biological Invasions (7) 607-614
Introduced populations of Guekensia demissa occur on the west coast of North America. They have been reported in San Francisco Bay, four southern California wetlands, and in Estero de Punta Banda (EPB), Baja California Norte, Mexico. We randomly sampled benthic invertebrates in four habitat types within EPB: marsh,...
Topography and vegetation as predictors of snow water equivalent across the alpine treeline ecotone at Lee Ridge, Glacier National Park, Montana, U.S.A.
C. A. Geddes, Daniel G. Brown, Daniel B. Fagre
2005, Arctic, Antarctic, and Alpine Research (37) 197-205
We derived and implemented two spatial models of May snow water equivalent (SWE) at Lee Ridge in Glacier National Park, Montana. We used the models to test the hypothesis that vegetation structure is a control on snow redistribution at the alpine treeline ecotone (ATE). The statistical models were derived using...
Factors influencing the sporulation and cyst formation of Aphanomyces invadans, etiological agent of ulcerative mycosis in Atlantic menhaden, Brevoortia tyrannus
Y. Kiryu, Vicki S. Blazer, W. K. Vogelbein, H. Kator, J. D. Shields
2005, Mycologia (97) 569-575
Oomycete infections caused by Aphanomyces invadans occur in freshwater and estuarine fishes around the world. Along the east coast of the USA, skin ulcers caused by A. invadans are prevalent in Atlantic menhaden, Brevoortia tyrannus. From laboratory observations low salinities appear crucial to transmission of the pathogen. To better understand aspects of transmission, we characterized sporulation...
The inverse problem of refraction travel times, part I: Types of Geophysical Nonuniqueness through Minimization
J. Ivanov, R. D. Miller, J. Xia, D. Steeples, C.B. Park
2005, Pure and Applied Geophysics (162) 447-459
In a set of two papers we study the inverse problem of refraction travel times. The purpose of this work is to use the study as a basis for development of more sophisticated methods for finding more reliable solutions to the inverse problem of refraction travel times, which is known...
Eradication of invasive Tamarix ramosissima along a desert stream increases native fish density
T.A. Kennedy, J. C. Finlay, S.E. Hobbie
2005, Ecological Applications (15) 2072-2083
Spring ecosystems of the western United States have high conservation value, particularly because of the highly endemic, and often endangered, fauna that they support. Refuges now protect these habitats from many of the human impacts that once threatened them, but invasive species often persist. Invasive saltcedar is ubiquitous along streams,...
Preliminary characterisation of new glass reference materials (GSA-1G, GSC-1G, GSD-1G and GSE-1G) by laser ablation-inductively coupled plasma-mass spectrometry using 193 nm, 213 nm and 266 nm wavelengths
M. Guillong, K. Hametner, E. Reusser, Stephen A. Wilson, D. Gunther
2005, Geostandards and Geoanalytical Research (29) 315-331
New glass reference materials GSA-1G, GSC-1G, GSD-1G and GSE-1G have been characterised using a prototype solid state laser ablation system capable of producing wavelengths of 193 nm, 213 nm and 266 nm. This system allowed comparison of the effects of different laser wavelengths under nearly identical ablation and ICP operating...
Development of evaluation tools for GIS: How does GIS affect student learning?
S. Linn, J. Kerski, S. Wither
2005, International Research in Geographical and Environmental Education (14) 217-222
No abstract available....
Public access management as an adaptive wildlife management tool
Douglas S. Ouren, Raymond D. Watts
2005, Open-File Report 2005-1349
Wildlife populations across the United States are benefiting from improved wildlife management techniques. However, these benefits also create new challenges including overpopulation, disease, increased winter kill, and forage degradation. These issues have become the challenges for natural resource managers and landowners. Specifically, elk (Cervus elaphus) populations in the Gunnison River...
An exploratory assessment of Cuban Treefrog (Osteopilus septentrionalis) tadpoles as predators of native and nonindigenous tadpoles in Florida
Kimberly G. Smith
2005, Amphibia-Reptilia (26) 571-575
[No abstract available]...
Fuel reduction and woody debris dynamics with early season and late season prescribed fire in a Sierra Nevada mixed conifer forest
E. E. Knapp, Jon E. Keeley, E. A. Ballenger, T. J. Brennan
2005, Forest Ecology and Management (208) 383-397
Fire exclusion has led to an unnatural accumulation and greater spatial continuity of organic material on the ground in many forests. This material serves both as potential fuel for forest fires and habitat for a large array of forest species. Managers must balance...
Invasion history, proliferation, and offshore diet of the round goby Neogobius melanostomus in western Lake Huron, USA
Jeffrey S. Schaeffer, Anjanette Bowen, Michael Thomas, John R. P. French III, Gary L. Curtis
2005, Journal of Great Lakes Research (31) 414-425
We used data from three trawl surveys during 1996–2003 to document range expansion, population trends, and use of offshore habitats by round gobies in the U.S. waters of Lake Huron. Round gobies (Neogobius melanostomus) were not detected in any survey until 1997, but by 2003 they had been recorded at...
Tree species and size structure of old-growth Douglas-fir forests in central western Oregon, USA
Nathan Poage, J. C. Tappeiner II
2005, Forest Ecology and Management (204) 329-343
We characterized the structure of 91 old-growth forests dominated by Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), using inventory data from recent (1985–1991) old-growth timber sales in western Oregon. The data were complete counts (i.e., censuses) of all live trees >20 cm diameter at breast height (dbh, measured at 1.4 m above the ground) over...
A complete species census and evidence for regional declines in piping plovers
Susan M. Haig, C. L. Ferland, Francesca J. Cuthbert, J. Dingledine, J. P. Goossen, A. Hecht, N. McPhillips
2005, Journal of Wildlife Management (69) 160-173
Complete population estimates for widely distributed species are rarely possible. However, for the third time in 10 years, an International Piping Plover (Charadrius melodus) Breeding and Winter Census was conducted throughout the species range in 2001. Nearly 1,400 participants from 32 U.S. states and Puerto Rico; 9 Canadian provinces;...
Amphibian occurrence and aquatic invaders in a changing landscape: Implications for wetland mitigation in the Willamette Valley, Oregon
Christopher A. Pearl, M. J. Adams, N. Leuthold, R. Bruce Bury
2005, Wetlands (25) 76-88
Despite concern about the conservation status of amphibians in western North America, few field studies have documented occurrence patterns of amphibians relative to potential stressors. We surveyed wetland fauna in Oregon's Willamette Valley and used an information theoretic approach (AIC) to rank the associations between native amphibian breeding occurrence and...
Influence of barriers to movement on within-watershed genetic variation of coastal cutthroat trout
John E. B. Wofford, Robert E. Gresswell, Michael A. Banks
2005, Ecological Applications (15) 628-637
Because human land use activities often result in increased fragmentation of aquatic and terrestrial habitats, a better understanding of the effects of fragmentation on the genetic heterogeneity of animal populations may be useful for effective management. We used eight microsatellites to examine the genetic structure of coastal cutthroat trout (Oncorhynchus...
