Regional economic effects of current and proposed management alternatives for Arrowwood National Wildlife Refuge
Lynne Koontz, Heather Lambert
2005, Open-File Report 2005-1415
The National Wildlife Refuge System Improvement Act of 1997 requires all units of the National Wildlife Refuge System to be managed under a Comprehensive Conservation Plan (CCP). The CCP must describe the desired future conditions of a Refuge and provide long range guidance and management direction to achieve Refuge purposes....
The Coso EGS project - Recent developments
P. Rose, J. Sheridan, J. McCulloch, J.N. Moore, K. Kovac, R. Weidler, S. Hickman
2005, Conference Paper, Geothermal Energy--The World's Buried Treasure
An Enhanced Geothermal System (EGS) field experiment will be conducted to hydraulically stimulate injection well 34-9RD2, located on the east flank of the Coso geothermal reservoir, with the objective of increasing the injection rate of this well to 750 gpm at a wellhead pressure of 100 psi or less. The...
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;...
Natural landscape features, human-related attractants, and conflict hotspots: A spatial analysis of human-grizzly bear conflicts
S.M. Wilson, M.J. Madel, D.J. Mattson, J.M. Graham, J.A. Burchfield, J.M. Belsky
2005, Ursus (16) 117-129
There is a long history of conflict in the western United States between humans and grizzly bears (Ursus arctos) involving agricultural attractants. However, little is known about the spatial dimensions of this conflict and the relative importance of different attractants. This study was undertaken to better understand the spatial and...
The Pinto shear zone; a Laramide synconvergent extensional shear zone in the Mojave Desert region of the southwestern United States
M.L. Wells, M.A. Beyene, T.L. Spell, J.L. Kula, D. M. Miller, K.A. Zanetti
2005, Journal of Structural Geology (27) 1697-1720
The Pinto shear zone is one of several Late Cretaceous shear zones within the eastern fringe of the Mesozoic magmatic arc of the southwest Cordilleran orogen that developed synchronous with continued plate convergence and backarc shortening. We demonstrate an extensional origin for the shear zone by describing the shear-zone geometry...
Magmatic unrest beneath Mammoth Mountain, California
D.P. Hill, S. Prejean
2005, Journal of Volcanology and Geothermal Research (146) 257-283
Mammoth Mountain, which stands on the southwest rim of Long Valley caldera in eastern California, last erupted ∼57,000 years BP. Episodic volcanic unrest detected beneath the mountain since late 1979, however, emphasizes that the underlying volcanic system is still active and capable of producing future volcanic eruptions. The unrest symptoms...
An evaluation of sampling strategies to improve precision of estimates of gross change in land use and land cover
S.V. Stehman, Terry L. Sohl, Thomas R. Loveland
2005, International Journal of Remote Sensing (26) 4941-4957
Statistical sampling offers a cost-effective, practical alternative to complete-coverage mapping for the objective of estimating gross change in land cover over large areas. Because land cover change is typically rare, the sampling strategy must take advantage of design and analysis tools that enhance precision. Using two populations of land cover...
Population status of Kittlitz's Murrelet Brachyramphus brevirostris along the southern coast of the Alaska Peninsula
Thomas I. van Pelt, John F. Piatt
2005, Report
The Kittlitz's murrelet (Brachyramphus brevirostris) is a rare seabird that nests in alpine terrain and generally forages near tidewater glaciers during the breeding season. An estimated 95% of the global population breeds in Alaska, with some unknown proportion breeding in the Russian Far East. A global population estimate using bestavailable...
Use of isotopes, age-dating, and numerical simulation to evaluate source histories and transport of NO3- to public supply wells in principal aquifers of the United States
P.B. McMahon, J.K. Bohlke, C. Brown, K. Burow, C. A. Crandall, Matthew K. Landon
2005, Conference Paper, Proceedings of the 6th International Symposium on Applied Isotope Geochemistry
No abstract available. ...
Carbon, nitrogen, and phosphorus accumulation in floodplains of Atlantic Coastal Plain rivers, USA
Gregory E. Noe, Cliff Hupp
2005, Ecological Applications (15) 1178-1190
Net nutrient accumulation rates were measured in riverine floodplains of the Atlantic Coastal Plain in Virginia, Maryland, and Delaware, USA. The floodplains were located in watersheds with different land use and included two sites on the Chickahominy River (urban), one site on the Mattaponi River (forested), and five sites on...
Individual variation in staging and timing of spring migration of Pacific common eiders in Alaska
Margaret R. Petersen
2005, Conference Paper, Second North America Sea Duck Conference
Timing of migration and characterization of migration patterns of birds are usually based on dates of peak migration to and from staging, wintering, and breeding areas used by the bulk of a species. For Pacific common eiders (Somateria mollissima v-nigrum), as well as other species, the timing of migration into...
Factors affecting settling, survival, and viability of black bears reintroduced to Felsenthal National Wildlife Refuge, Arkansas
B.J. Wear, R. Eastridge, J. D. Clark
2005, Wildlife Society Bulletin (33) 1363-1374
We used radiotelemetry and population modeling techniques to examine factors related to population establishment of black bears (Ursus americanus) reintroduced to Felsenthal National Wildlife Refuge (NWR), Arkansas. Our objectives were to determine whether settling (i.e., establishment of a home range at or near the release site), survival, recruitment, and population...
Reconnaissance study of late quaternary faulting along Cerro Goden fault zone, western Puerto Rico
P. Mann, C.S. Prentice, J.-C. Hippolyte, N.R. Grindlay, L.J. Abrams, D. Lao-Davila
2005, Special Paper of the Geological Society of America (385) 115-137
The Cerro Goden fault zone is associated with a curvilinear, continuous, and prominent topographic lineament in western Puerto Rico. The fault varies in strike from northwest to west. In its westernmost section, the fault is ∼500 m south of an abrupt, curvilinear mountain front separating the 270- to 361-m-high La...
Eastern rim of the Chesapeake Bay impact crater: Morphology, stratigraphy, and structure
C. W. Poag
2005, Special Paper of the Geological Society of America 117-130
This study reexamines seven reprocessed (increased vertical exaggeration) seismic reflection profiles that cross the eastern rim of the Chesapeake Bay impact crater. The eastern rim is expressed as an arcuate ridge that borders the crater in a fashion typical of the "raised" rim documented in many well preserved complex impact...
Impact of millennial-scale Holocene climate variability on eastern North American terrestrial ecosystems: Pollen-based climatic reconstruction
Debra A. Willard, C.E. Bernhardt, D.A. Korejwo, S.R. Meyers
2005, Global and Planetary Change (47) 17-35
We present paleoclimatic evidence for a series of Holocene millennial-scale cool intervals in eastern North America that occurred every ???1400 years and lasted ???300-500 years, based on pollen data from Chesapeake Bay in the mid-Atlantic region of the United States. The cool events are indicated by significant decreases in pine...
Tar yields from low-temperature carbonization of coal facies from the Powder River Basin, Wyoming, USA
Ronald W. Stanton, Peter D. Warwick, Sharon M. Swanson
2005, International Journal of Coal Geology (63) 13-26
Tar yields from low-temperature carbonization correlate with the amount of crypto-eugelinite in samples selected to represent petrographically distinct coal facies of the Wyodak-Anderson coal zone. Tar yields from Fischer Assay range from <1 to 11 wt.% on a dry basis and correspond (r = 0.72) to crypto-eugelinite contents of the coal that...
Secondary sulfate minerals associated with acid drainage in the eastern US: Recycling of metals and acidity in surficial environments
J. M. Hammarstrom, R.R. Seal II, A. L. Meier, J.M. Kornfeld
2005, Chemical Geology (215) 407-431
Weathering of metal-sulfide minerals produces suites of variably soluble efflorescent sulfate salts at a number of localities in the eastern United States. The salts, which are present on mine wastes, tailings piles, and outcrops, include minerals that incorporate heavy metals in solid solution, primarily the highly soluble members of the...
Surface deformation associated with the March 1996 earthquake swarm at Akutan Island, Alaska, revealed by C-band ERS and L-band JERS radar interferometry
Z. Lu, C. Wicks Jr., O. Kwoun, J.A. Power, D. Dzurisin
2005, Canadian Journal of Remote Sensing (31) 7-20
In March 1996, an intense earthquake swarm beneath Akutan Island, Alaska, was accompanied by extensive ground cracking but no eruption of Akutan volcano. Radar interferograms produced from L-band JERS-1 and C-band ERS-1/2 images show uplift associated with the swarm by as much as 60 cm on the western...
Hydrologic properties of coal-beds in the Powder River Basin, Montana: II. Aquifer test analysis
E.P. Weeks
2005, Journal of Hydrology (308) 242-257
A multiple well aquifer test to determine anisotropic transmissivity was conducted on a coal-bed in the Powder River Basin, southeastern Montana, as part of a multidisciplinary investigation to determine hydrologic conditions of coal-beds in the area. For the test, three wells were drilled equidistant from and at different angles to a production well tapping the Flowers–Goodale coal seam,...
Generation and validation of characteristic spectra from EO1 Hyperion image data for detecting the occurrence of the invasive species, Chinese tallow
Elijah W. Ramsey III, A. Rangoonwala, G. Nelson, R. Ehrlich, K. Martella
2005, International Journal of Remote Sensing (26) 1611-1636
Chinese tallow (Triadica sebifera) is an invasive tree that is spreading throughout the south-eastern United States and now into the west, and in many places causing extensive change to native habitat and associated wildlife. Detecting and mapping the relative distribution of this species is important to its control and eradication....
Cultural change in the songs of humpback whales (Megaptera novaeangliae) from Tonga
N. Eriksen, L.A. Miller, J. Tougaard, D.A. Helweg
2005, Behaviour (142) 305-328
Some humpback whales migrate annually from Antarctic feeding grounds to the seas around the Tongan Islands to give birth and mate. The Tongan humpbacks are considered part of Southern Hemisphere Group V that splits during migration, some swimming to Eastern Australia and others to various Polynesian Islands. During this time...
Factors influencing the biogeochemistry of sedimentary carbon and phosphorus in the Sacramento-San Joaquin Delta
E. B. Nilsen, M. L. Delaney
2005, Estuaries (28) 653-663
This study characterizes organic carbon (Corganic) and phosphorus (P) geochemistry in surface sediments of the Sacramento-San Joaquin Delta, California. Sediment cores were collected from five sites on a sample transect from the edge of the San Francisco Bay eastward to the freshwater Consumnes River. The top 8 cm of each...
The 2003 eruption of Anatahan volcano, Commonwealth of the Northern Mariana Islands: Chronology, volcanology, and deformation
F. A. Trusdell, R. B. Moore, M. Sako, R.A. White, S.K. Koyanagi, R. Chong, J.T. Camacho
2005, Journal of Volcanology and Geothermal Research (146) 184-207
The first historical eruption on Anatahan Island occurred on 10 May 2003 from the east crater of the volcano. The eruption was preceded by several hours of seismicity. Two and a half hours before the outbreak, the number of earthquakes surged to more than 100 events per hour. At 0730...
Assessing the competitive ability of Japanese stilt grass, Microstegium vimineum (Trin.) A. Camus
S. A. Leicht, J. A. Silander Jr., K. Greenwood
2005, Journal of the Torrey Botanical Society (132) 573-580
Microstegium vimineum (Japanese stilt grass) is an invasive grass in the eastern half of the United States which can form dense monocultures in forest understories, displacing native species. Although the loss of native species has been observed in the field, the actual competitive ability of this grass has not been...
The kinematic and hydrographic structure of the Gulf of Maine Coastal Current
N.R. Pettigrew, J.H. Churchill, C.D. Janzen, L.J. Mangum, R. P. Signell, A.C. Thomas, D.W. Townsend, J.P. Wallinga, H. Xue
2005, Deep-Sea Research Part II: Topical Studies in Oceanography (52) 2369-2391
The Gulf of Maine Coastal Current (GMCC), which extends from southern Nova Scotia to Cape Cod Massachusetts, was investigated from 1998 to 2001 by means of extensive hydrographic surveys, current meter moorings, tracked drifters, and satellite-derived thermal imagery. The study focused on two principal branches of the GMCC, the Eastern...
