Water loss in the Potomac River basin during droughts
E.R. Hagen, J.E. Kiang, J.J.A. Dillow
Sehlke G.Hayes D.F.Stevens D.K., editor(s)
2004, Conference Paper, Proceedings of the 2004 World Water and Environmetal Resources Congress: Critical Transitions in Water and Environmetal Resources Management
The water loss phenomena in the Washington DC metropoliton area's (WMA) Potomac River water supply basin during droughts was analyzed. Gage errors, permitted withdrawals, evaporation, and transpiration by trees along the river were investigated to account for loss. The Interstate Commission on the Potomac River Basin (ICPRB) calculated potential gage...
Winter orographic precipitation ratios in the Sierra Nevada: Large-scale atmospheric circulations and hydrologic consequences
M. Dettinger, K. Redmond, D. Cayan
2004, Journal of Hydrometeorology (5) 1102-1116
The extent to which winter precipitation is orographically enhanced within the Sierra Nevada of California varies from storm to storm, and season to season, from occasions when precipitation rates at low and high altitudes are almost the same to instances when precipitation rates at middle elevations (considered...
Olfactory sensitivity of Pacific lampreys to conspecific bile acids
T.C Craig, J.M. Bayer, J.G. Seelye
2004, Report
No abstract available ...
Study on geophone coupling and attenuating compensatory of low-depression velocity layer in desert area
Z. Shi, G. Tian, S. Dong, J. Xia, H. He
Chen C.Xia J., editor(s)
2004, Conference Paper, Progress in Environmental and Engineering Geophysics: Proceedings of the International Conference on Environmental and Engineering Geophysics, ICEEG 2004
In a desert area, it is difficult to couple geophones with dry sands. A low and depression velocity layer can seriously attenuate high frequency components of seismic data. Therefore, resolution and signal-to-noise (S/N) ratio of seismic data deteriorate. To enhance resolution and S/N ratio of seismic data, we designed a...
Canada lynx Lynx canadensis habitat and forest succession in northern Maine, USA
C.L. Hoving, D.J. Harrison, W.B. Krohn, W.J. Jakubas, M.A. McCollough
2004, Wildlife Biology (10) 285-294
The contiguous United States population of Canada lynx Lynx canadensis was listed as threatened in 2000. The long-term viability of lynx populations at the southern edge of their geographic range has been hypothesized to be dependent on old growth forests; however, lynx are a specialist predator on snowshoe hare Lepus...
Fire in California ecosystems
N. G. Sugihara, J. W. van Wagtendonk, J. Fites-Kaufman, K. E. Shaffer, A. E. Thode
2004, Book
No abstract available at this time...
Population characteristics of Siren lacertina and Amphiuma means in north Florida
K. Sorensen
2004, Southeastern Naturalist (3) 249-258
Abstract not supplied at this time...
Osteopilus septentrionalis (Cuban treefrog). Reproductive behavior
Kimberly G. Smith
2004, Herpetological Review (35) 374-375
Abstract not supplied at this time...
Corvidae feather pulp and West Nile virus detection
D. E. Docherty, R. Romaine Long, Katie M. Griffin, E.K. Saito
2004, Emerging Infectious Diseases (10) 907-909
We evaluated cloacal swab, vascular pulp of flight feather, and kidney and spleen pool samples from carcasses of members of the family Corvidae as sources of West Nile virus (WNV). The cloacal swab, kidney and spleen pool, and feather pulp were the source of WNV in 38%, 43%, and 77%,...
Economic analysis of alternative bison and elk management practices on the National Elk Refuge and Grand Teton National Park: A comparison of visitor and household responses
John B. Loomis, Lynne Caughlan
2004, Open-File Report 2004-1305
The U.S. Fish and Wildlife Service (FWS) and the National Park Service (NPS) are preparing a management plan for bison and elk inhabiting the National Elk Refuge (NER) and Grand Teton National Park (GTNP). These animals are part of the bison and elk herds in Jackson Hole, one of the...
Seabirds off Southern California-surveys reveal patterns in abundance and distribution
Joshua T. Ackerman, J.W. Mason, John Y. Takekawa
2004, Sound Waves 6-7
No abstract available at this time...
Burrowing mayflies (Hexagenia) as indicators of ecosystem health at Sleeping Bear Dunes National Lakeshore, Michigan
Thomas A. Edsall, William E. Phillips
2004, Park Science (23) 41-45, 48
The present study describes the provisional use of burrowing mayflies (Hexagenia [Ephemeroptera: Ephemeridae]) as an indicator organism to assess and monitor the health of the Loon Lake and lower Platte River ecosystem within Sleeping Bear Dunes National Lakeshore, Michigan....
Standing crop and aboveground biomass partitioning of a dwarf mangrove forest in Taylor River Slough, Florida
C. Coronado-Molina, J.W. Day Jr., E. Reyes, B.C. Perez
2004, Wetlands Ecology and Management (12) 157-164
The structure and standing crop biomass of a dwarf mangrove forest, located in the salinity transition zone ofTaylor River Slough in the Everglades National Park, were studied. Although the four mangrove species reported for Florida occurred at the study site, dwarf Rhizophora mangle trees dominated the forest. The structural characteristics...
Mechanisms and active variety of allelochemicals
S. Peng, J. Wen, Q. Guo
2004, Journal of Integrative Plant Biology (46) 757-766
Pilgrim Creek restoration project: bird community and vegetation structure. 2003 Annual Report
B.E. Kus, B. Peterson, M. Wellik
2004, Report
No abstract available at this time...
Research in National Parks (NPS Science Forum)
Jill Baron
2004, Ecological Applications (14) 3-4
No abstract available....
Vegetation responses to dam removal
Patrick B. Shafroth, Jonathan M. Friedman, Gregor T. Auble, Michael L. Scott
2004, Arid Ecosystems (10) 95-105
No abstract available....
Foxes on a hot tin roof
J.A. Sedgwick, J. Bartholow
2004, Western North American Naturalist (64) 406-408
No abstract available....
Spatiotemporal predictability of schooling and nonschooling prey of Pigeon Guillemots
Michael A. Litzow, John F. Piatt, Alisa A. Abookire, Suzann G. Speckman, Mayumi L. Arimitsu, Jared D. Figurski
2004, The Condor (106) 410-415
Low spatiotemporal variability in the abundance of nonschooling prey might allow Pigeon Guillemots (Cepphus columba) to maintain the high chick provisioning rates that are characteristic of the species. We tested predictions of this hypothesis with data collected with beach seines and scuba and hydroacoustic surveys in Kachemak Bay, Alaska, during...
Investigating passage of ESA-listed juvenile fall Chinook salmon at Lower Granite Dam during winter when the fish bypass system is not operated. Annual report 2003
W.P. Connor, K.F. Tiffan, J.G. Sneva
2004, Report
No abstract available ...
Carp lemonade
Duane Chapman
2004, Missouri Conservationist (65) 9-13
You've probably heard the adage, "When life gives you lemons, make lemonade!" Missouri has been given some lemons in the form of bighead and silver carp. These large, plankton eating fish, native to Asia, were imported into Arkansas in the 1970s to control water quality in...
Benthic macroinvertebrate distribution in thermal springs of the Muddy River
K.M. Swaim, R.R McShane, G.G. Scoppettone
2004, Report
Abstract not available ...
Passage of juvenile fall Chinook salmon at Lower Granite Dam during winter. Annual report 2003
C. A. Haskell, K.T. Tiffan, W.P. Connor, J.G. Sneva
2004, Report, Investigating passage of ESA-listed juvenile fall Chinook salmon at Lower Granite Dam during winter when the fish bypass system is not operated
No abstract available ...
A fish survey of the White River, Nevada
G. Gary Scoppettone, Peter H. Rissler, Sean Shea
2004, Western North American Naturalist (64) 45-52
In spring and summer 1991 and 1992, we surveyed fishes of the White River system, Nye and White Pine Counties, Nevada, to determine the status of natives. There are 5 known native fishes to the White River: Lepidomeda albivallis (White River spinedace), Crenichthys baileyi albivallis (Preston White River springfish), Crenichthys...
Distribution and relative abundance of fishes in littoral areas of Chief Joseph Reservoir, Columbia River
Dena M. Gadomski, David A. Venditti, T. Craig Robinson, John W. Beeman, Alec G. Maule
2004, Northwest Science (78) 48-58
We surveyed fish assemblages in littoral areas of Chief Joseph Reservoir of the upper Columbia River to aid in understanding this ecosystem. Fish distributions and abundances were examined during April-July 1999 in relation to environmental conditions in the reservoir. We also compared the fish assemblages in Chief Joseph reservoir in...
