Spatial and seasonal dynamics of brook trout populations inhabiting a central Appalachian watershed
J.T. Petty, P. J. Lamothe, P. M. Mazik
2005, Transactions of the American Fisheries Society (134) 572-587
We quantified the watershed-scale spatial population dynamics of brook trout Salvelinus fontinalis in the Second Fork, a third-order tributary of Shavers Fork in eastern West Virginia. We used visual surveys, electrofishing, and mark-recapture techniques to quantify brook trout spawning intensity, population density, size structure, and demographic rates (apparent survival and...
Capture-recapture methods in practice
Bryan F.J. Manly, Steven C. Amstrup, Trent L. McDonald
Steven C. Amstrup, Trent L. McDonald, Bryan F.J. Manly, editor(s)
2005, Book chapter, Handbook of capture-recapture analysis
No abstract available....
Avian cholera exposure and carriers in greater white-fronted geese breeding in Alaska, USA
Michael D. Samuel, Daniel J. Shadduck, Diana R. Goldberg
2005, Journal of Wildlife Diseases (41) 498-502
We conducted a 3-yr study (2001–03) on greater white-fronted geese (Anser albifrons frontalis) breeding in Alaska, USA, to determine the exposure of this population to Pasteurella multocida and the potential role of these birds as disease carriers. We tested sera from nearly 600 adult geese for antibodies to P. multocida serotype 1. We found...
Evaluating coral reef health in American Samoa
Thierry M. Work, Robert A. Rameyer
2005, Coral Reefs (24) 384-390
The study of coral disease has suffered from an absence of systematic approaches that are commonly used to determine causes of diseases in animals. There is a critical need to develop a standardized and portable nomenclature for coral lesions in the field and to incorporate more commonly available biomedical tools...
Paleoenvironmental analyses of an organic deposit from an erosional landscape remnant, Arctic Coastal Plain of Alaska
Wendy R. Eisner, James G. Bockheim, Kenneth M. Hinkel, Thomas A. Brown, Frederick E. Nelson, Kim M. Peterson, Benjamin M. Jones
2005, Palaeogeography, Palaeoclimatology, Palaeoecology (217) 187-204
The dominant landscape process on the Arctic Coastal Plain of northern Alaska is the formation and drainage of thaw lakes. Lakes and drained thaw-lake basins account for approximately 75% of the modern surface expression of the Barrow Peninsula. The thaw-lake cycle usually obliterates lacustrine or peat sediments from previous cycles,...
Linkages between climate, growth, competition at sea and production of sockeye salmon populations in Bristol Bay, 1955-2000
Jennifer L. Nielsen, Gregory T. Ruggerone
Sarah Behr, Helen Wiggins, Alison York, editor(s)
2005, Conference Paper, Proceedings of the open science meeting study of environmental Arctic change (SEARCH)
Bristol Bay, Alaska, supports one of the largest and most valuable salmon fisheries in the world. Salmon abundance in Bristol Bay and other northern areas more than doubled after the 1976–77 marine climate shift. However, in 1997–98, a major El Niño event led to unusual oceanographic conditions and Bristol Bay...
Quantitative assessment of benthic food resources for juvenile Gulf sturgeon, Acipenser oxyrinchus desotoi in the Suwannee River estuary, Florida, USA
R. A. Brooks, K. J. Sulak
2005, Estuaries (28) 767-775
Gulf sturgeon, Acipenser oxyrinchus desotoi, forage extensively in the Suwannee River estuary following emigration out of the Suwannee River, Florida. While in the estuary, juvenile Gulf sturgeon primarily feed on benthic infauna. In June–July 2002 and February–April 2003, random sites within the estuary were sampled for benthic macrofauna (2002 n...
Look what the cat dragged in: do parasites contribute to human cultural diversity?
Kevin D. Lafferty
2005, Behavioural Processes (68) 279-282
If human culture emerges from the modal personality of a population, can global variation in parasitism that affects personality lead to cultural diversity among nations? The answer could help explain why people seem to vary so much from one land to another. Thomas et al. (2005) review how parasites manipulate behaviour,...
Assessing contaminant sensitivity of endangered and threatened aquatic species: Part I. Acute toxicity of five chemicals
F.J. Dwyer, F.L. Mayer, L.C. Sappington, D.R. Buckler, C.M. Bridges, I.E. Greer, D.K. Hardesty, C.E. Henke, C.G. Ingersoll, J.L. Kunz, D.W. Whites, T. Augspurger, D.R. Mount, K. Hattala, G.N. Neuderfer
2005, Archives of Environmental Contamination and Toxicology (48) 143-154
Assessment of contaminant impacts to federally identified endangered, threatened and candidate, and state-identified endangered species (collectively referred to as "listed" species) requires understanding of a species' sensitivities to particular chemicals. The most direct approach would be to determine the sensitivity of a listed species to a particular contaminant or perturbation....
Palynology in coal systems analysis-The key to floras, climate, and stratigraphy of coal-forming environments
D. J. Nichols
2005, Special Paper of the Geological Society of America 51-58
Palynology can be effectively used in coal systems analysis to understand the nature of ancient coal-forming peat mires. Pollen and spores preserved in coal effectively reveal the floristic composition of mires, which differed substantially through geologic time, and contribute to determination of depositional environment and paleo- climate. Such applications are...
The May 2003 eruption of Anatahan volcano, Mariana Islands: Geochemical evolution of a silicic island-arc volcano
J.A. Wade, T. Plank, R. J. Stern, D.L. Tollstrup, J.B. Gill, J. C. O’Leary, J.M. Eiler, R. B. Moore, J.D. Woodhead, F. Trusdell, T.P. Fischer, David R. Hilton
2005, Journal of Volcanology and Geothermal Research (146) 139-170
The first historical eruption of Anatahan volcano began on May 10, 2003. Samples of tephra from early in the eruption were analyzed for major and trace elements, and Sr, Nd, Pb, Hf, and O isotopic compositions. The compositions of these tephras are compared with those of prehistoric samples of basalt...
A physical model for strain accumulation in the San Francisco Bay Region
F. F. Pollitz, M. Nyst
2005, Geophysical Journal International (160) 302-317
Strain accumulation in tectonically active regions is generally a superposition of the effects of background tectonic loading, steady-state dislocation processes, such as creep, and transient deformation. In the San Francisco Bay region (SFBR), the most uncertain of these processes is transient deformation, which arises primarily in association with large earthquakes....
Mississippian Barnett Shale, Fort Worth basin, north-central Texas: Gas-shale play with multi-trillion cubic foot potential
Scott L. Montgomery, D.M. Jarvie, K.A. Bowker, R. M. Pollastro
2005, American Association of Petroleum Geologists Bulletin (89) 155-175
The Mississippian Barnett Shale serves as source, seal, and reservoir to a world-class unconventional natural-gas accumulation in the Fort Worth basin of north-central Texas. The formation is a lithologically complex interval of low permeability that requires artificial stimulation to produce. At present, production is mainly confined to a limited portion...
Seasonal exposures to triazine and other pesticides in surface waters in the western Highveld corn-production region in South Africa
L.H. Du Preez, P.J. Jansen Van Rensburg, A.M. Jooste, J.A. Carr, J. P. Giesy, T. S. Gross, R.J. Kendall, E.E. Smith, G. Van Der Kraak, K.R. Solomon
2005, Environmental Pollution (135) 131-141
The objective of this study was to characterize concentrations of atrazine, terbuthylazine, and other pesticides in amphibian habitats in surface waters of a corn-production area of the western Highveld region (North-West Province) of South Africa. The study was conducted from November 2001 to June 2002, coinciding with the corn-production season....
Invaders eating invaders: Exploitation of novel alien prey by the alien shimofuri goby in the San Francisco Estuary, California
S.A. Matern, L. R. Brown
2005, Biological Invasions (7) 497-507
The shimofuri goby (Tridentiger bifasciatus), which is native to Asian estuaries, was recently introduced to the San Francisco Estuary, California, USA. We conducted gut content analyses to examine the goby's feeding ecology in this highly invaded estuary. Shimofuri gobies were generalist predators on benthic invertebrates, consuming seasonally abundant prey, especially...
Mercury- and silver-rich ferromanganese oxides, southern California Borderland: Deposit model and environmental implications
J.R. Hein, A. Koschinsky, B.R. McIntyre
2005, Economic Geology (100) 1151-1168
Mercury- and silver-enriched ferromanganese oxide crusts were recovered at water depths of 1,750 tol,300 m from La Victoria knoll, located about 72 km off the coast of northern Baja California. No other ferromanganese precipitate found so far in the modern ocean basins is similarly enriched in Hg and Ag. The...
Genetic effects of a large-scale Spartina alterniflora (smooth cordgrass) dieback and recovery in the northern Gulf of Mexico
K.R. Edwards, S.E. Travis, C.E. Proffitt
2005, Estuaries (28) 204-214
A large-scale dieback event struck marshes along the northwestern Gulf of Mexico coast during summer 2000, in apparent response to a prolonged and severe drought. Along the Louisiana coast, large areas of the dominant marsh species, Spartina alterniflora, turned brown, followed by death of at least the aboveground...
Influence of climatic variability on local population dynamics of a Sonoran Desert platyopuntia
Janice E. Bowers
2005, Journal of Arid Environments (61) 193-210
Age-based population dynamics of Opuntia engelmannii, a shrubby cactus with flattened cladodes, were investigated at a Sonoran Desert site protected from grazing since 1907. Demographic statistics were determined from births and deaths on six permanent vegetation plots mapped four times between 1968 and 2001. Moderate longevity (13-56 years) and modest...
Dating the growth of oceanic crust at a slow-spreading ridge
J.J. Schwartz, Barbara E. John, Michael J. Cheadle, E.A. Miranda, Craig B. Grimes, J. L. Wooden, H.J.B. Dick
2005, Science (310) 654-657
Nineteen uranium-lead zircon ages of lower crustal gabbros from Atlantis Bank, Southwest Indian Ridge, constrain the growth and construction of oceanic crust at this slow-spreading midocean ridge. Approximately 75% of the gabbros accreted within error of the predicted seafloor magnetic age, whereas ???25% are significantly older. These anomalously old samples...
Technical review of the status of Northern Goshawks in the western United States
D. E. Andersen, S. DeStefano, M.I. Goldstein, K. Titus, C. Crocker-Bedford, J.J. Keane, R.G. Anthony, Robert N. Rosenfield
2005, Journal of Raptor Research (39) 192-209
The U.S. Fish and Wildlife Service (FWS) was petitioned in 1997 to consider listing Northern Goshawks (Accipiter gentilis atricapillus) under the Endangered Species Act of 1973, west of the 100th meridian of the contiguous United States. In their 12-mo finding issued in June 1998, the FWS determined that listing this...
Basal tissue structure in the earliest euconodonts: Testing hypotheses of developmental plasticity in euconodont phylogeny
X.-P. Dong, P.C.J. Donoghue, J.E. Repetski
2005, Palaeontology (48) 411-421
The hypothesis that conodonts are vertebrates rests solely on evidence of soft tissue anatomy. This has been corroborated by microstructural, topological and developmental evidence of homology between conodont and vertebrate hard tissues. However, these conclusions have been reached on the basis of evidence from highly derived euconodont taxa and the...
Effects of suburban development on runoff generation in the Croton River basin, New York, USA
Douglas A. Burns, T. Vitvar, J. McDonnell, J. Hassett, J. Duncan, Carol Kendall
2005, Journal of Hydrology (311) 266-281
The effects of impervious area, septic leach-field effluent, and a riparian wetland on runoff generation were studied in three small (0.38–0.56 km2) headwater catchments that represent a range of suburban development (high density residential, medium density residential, and undeveloped) within the Croton River basin, 70 km north of New York City. Precipitation, stream...
Geometry and kinematics of Late Cretaceous inversion structures in the Jiuquan Basin, western China
B. Wang, Chen Hao, S. Yang, A. Xiao, X. Cheng, J.A. Rupp
2005, Cretaceous Research (26) 319-327
Late Cretaceous inversion structures, which are significant for oil and gas accumulation, are widely distributed throughout the Jiuquan Basin. These structures are primarily made up of inverted faults and fault-related folds. Most of the axial planes of folds are parallel to inverted faults trending north-east, indicating that the principal stress...
Work package 4 report: Broodfish testing for bacterial infections
Christian Michel, Diane G. Elliott, Eva Jansson, Maria Urdaci, Paul J. Midtlyng
2005, Report
This report summarises current scientific information and experience obtained with various methods for testing of salmonid broodfish or spawn for bacterial kidney disease (BKD - Renibacterium salmoninarum infection) in order to prevent vertical transmission of the organism to the offspring. Assessment is also being performed for Flavobacterium psychrophilum infections causing...
A long-term (50 yr) historical perspective on flood-generating winter storms in the American River basin
M. D. Dettinger
2005, Conference Paper, Proceedings, 2005 California Extreme Precipitation Symposium
No abstract available....
