Length-weight relationship and a relative condition factor equation for lake sturgeon (Acipenser fulvescens) from the St Clair River system (Michigan, USA)
J.M. Craig, M.V. Thomas, S. J. Nichols
2005, Journal of Applied Ichthyology (21) 81-85
Several USA state, federal, and Canadian agencies study lake sturgeon (Acipenser fulvescens) within the St Clair River and Lake St Clair, collectively referred to hereafter as the St Clair River (SCR) system. Previously, there has been no set standard for determining condition for SCR system lake sturgeon. Condition measures the...
Mineralization, watershed geochemistry, and metals in fish from a Subarctic River, Alaska
L. P. Gough, B. Wang, J.G. Crock, R.R. Seal, P. Weber-Scannell
2005, Conference Paper, World Water Congress 2005: Impacts of Global Climate Change - Proceedings of the 2005 World Water and Environmental Resources Congress
We report on the levels of trace metals and metalloids in Arctic grayling (Thymallus arcticus), an important freshwater sport and subsistence fish in the Fortymile River, east-central Alaska. Functional biogeochemical baseline values and (or) ranges are presented for 38 major- and trace-elements in the muscle (fillet) and liver of 34...
Observations by the International Tsunami Survey Team in Sri Lanka
P.L.-F. Liu, P. Lynett, H. Fernando, B. E. Jaffe, H. Fritz, B. Higman, R. Morton, J. Goff, C. Synolakis
2005, Science (308) 1595
[No abstract available]...
Evidence and implications of recent climate change in Northern Alaska and other Arctic regions
L. D. Hinzman, N.D. Bettez, W.R. Bolton, F.S. Chapin, M.B. Dyurgerov, C.L. Fastie, B. Griffith, R.D. Hollister, Allen Hope, H.P. Huntington, A.M. Jensen, G.J. Jia, T. Jorgenson, D.L. Kane, D.R. Klein, G. Kofinas, A.H. Lynch, A.H. Lloyd, A. D. McGuire, Frederick E. Nelson, W.C. Oechel, T.E. Osterkamp, C.H. Racine, V.E. Romanovsky, R. S. Stone, D.A. Stow, M. Sturm, C.E. Tweedie, G.L. Vourlitis, M.D. Walker, D.A. Walker, P.J. Webber, J.M. Welker, K.S. Winker, K. Yoshikawa
2005, Climatic Change (72) 251-298
The Arctic climate is changing. Permafrost is warming, hydrological processes are changing and biological and social systems are also evolving in response to these changing conditions. Knowing how the structure and function of arctic terrestrial ecosystems are responding to recent and persistent climate change is paramount to understanding the future...
Mineral mapping on the Chilean-Bolivian Altiplano using co-orbital ALI, ASTER and Hyperion imagery: Data dimensionality issues and solutions
B.E. Hubbard, J.K. Crowley
2005, Remote Sensing of Environment (99) 173-186
Hyperspectral data coverage from the EO-1 Hyperion sensor was useful for calibrating Advanced Land Imager (ALI) and Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) images of a volcanic terrane area of the Chilean-Bolivian Altiplano. Following calibration, the ALI and ASTER datasets were co-registered and joined to produce a 13-channel...
Cause and effect of variations in western arctic snow and sea ice cover
R. S. Stone, David C. Douglas, G. I. Belchansky, S. D. Drobot, J. Harris
2005, Conference Paper, 85th AMS Annual Meeting, American Meteorological Society - Combined Preprints
[No abstract available]...
NO news is no new news
C. J. Fotheringham, Jon E. Keeley
2005, Seed Science Research (15) 367-371
In the paper ‘NO News’, Preston et al. (2004) make a number of erroneous assumptions regarding nitrogen oxide chemistry. These authors also present some very significant misinterpretations of previous research into the effects of various nitrogen oxides on germination of post-fire followers. Methodological differences between the study by Preston et al. (2004)...
Habitat and sex differences in physiological condition of breeding Southwestern Willow Flycatchers (Empidonax traillii extimus)
J.C. Owen, M. K. Sogge, M.D. Kern
2005, The Auk (122) 1261-1270
The Southwestern Willow Flycatcher (Empidonax traillii extimus; here- after “flycatcher”) is a federally listed endangered species that breeds in densely vegetated riparian habitats dominated by native and exotic plants, including introduced monotypic saltcedar (Tamarix ramosissima). Some workers have theorized that saltcedar is unsuitable habitat for the flycatcher, primarily because it...
Late Quaternary eolian and alluvial response to paleoclimate, Canyonlands, southeastern Utah
M.C. Reheis, R. L. Reynolds, H. Goldstein, H.M. Roberts, J. C. Yount, Y. Axford, L.S. Cummings, N. Shearin
2005, Geological Society of America Bulletin (117) 1051-1069
In upland areas of Canyonlands National Park, Utah, thin deposits and paleosols show late Quaternary episodes of eolian sedimentation, pedogenesis, and climate change. Interpretation of the stratigraphy and optically stimulated luminescence ages of eolian and nearby alluvial deposits, their pollen, and intercalated paleosols yields the following history: (1) Eolian deposition...
Stable sulfur isotope partitioning during simulated petroleum formation as determined by hydrous pyrolysis of Ghareb Limestone, Israel
A. Amrani, M. D. Lewan, Zeev Aizenshtat
2005, Geochimica et Cosmochimica Acta (69) 5317-5331
Hydrous pyrolysis experiments at 200 to 365??C were carried out on a thermally immature organic-rich limestone containing Type-IIS kerogen from the Ghareb Limestone in North Negev, Israel. This work focuses on the thermal behavior of both organic and inorganic sulfur species and the partitioning of their stable sulfur isotopes among...
Selecting a distributional assumption for modelling relative densities of benthic macroinvertebrates
B. R. Gray
2005, Ecological Modelling (185) 1-12
The selection of a distributional assumption suitable for modelling macroinvertebrate density data is typically challenging. Macroinvertebrate data often exhibit substantially larger variances than expected under a standard count assumption, that of the Poisson distribution. Such overdispersion may derive from multiple sources, including heterogeneity of habitat (historically and spatially), differing life...
From the Field: Capturing beavers in box traps
K. Koenen, S. DeStefano, C. Henner, T. Beroldi
2005, Wildlife Society Bulletin (33) 1153-1159
[No abstract available]...
An astrobiological perspective on Meridiani Planum
A.H. Knoll, M. Carr, B. Clark, D.J. Des Marais, J.D. Farmer, W.W. Fischer, J.P. Grotzinger, S. M. McLennan, M. Malin, C. Schroder, S. Squyres, N.J. Tosca, T. Wdowiak
2005, Earth and Planetary Science Letters (240) 179-189
Sedimentary rocks exposed in the Meridiani Planum region of Mars record aqueous and eolian deposition in ancient dune and interdune playa-like environments that were arid, acidic, and oxidizing. On Earth, microbial populations have repeatedly adapted to low pH and both episodic and chronic water limitation, suggesting that, to a first...
Canadian Journal of Forest Research: Foreword
M. Apps, A. D. McGuire
2005, Conference Paper, Canadian Journal of Forest Research
No abstract available....
Fire and the Miocene expansion of C4 grasslands
Jon E. Keeley, Philip W. Rundel
2005, Ecology Letters (8) 683-690
C4 photosynthesis had a mid-Tertiary origin that was tied to declining atmospheric CO2, but C4-dominated grasslands did not appear until late Tertiary. According to the ‘CO2-threshold’ model, these C4 grasslands owe their origin to a further late Miocene decline in CO2 that gave C4 grasses a photosynthetic advantage. This model is most appropriate for...
Evaluation of argon ages and integrity of fluid-inclusion compositions: Stepwise noble gas heating experiments on 1.87 Ga alunite from Tapajós Province, Brazil
G. P. Landis, L.W. Snee, Caetano Juliani
2005, Chemical Geology (215) 127-153
Quantitative analyses are reported for active (N2, CH4, CO, CO2, H2, O2, HF, HCl, H2S, SO2) and noble (He, Ar, Ne) gases released by crushing and step heating of magmatic-hydrothermal alunite from the Tapajós gold province in Brazil. This is the oldest known alunite (40Ar/39Ar age of 1.87 Ga),...
The portable oxy-fuel system debate.
K. Bancroft
2005, Occupational health & safety (Waco, Tex.) (74)
[No abstract available]...
Evaluation of current population indices for band-tailed pigeons
Michael L. Casazza, Julie L. Yee, Michael R. Miller, Dennis L. Orthmeyer, Daniel R. Yparraguirre, Robert L. Jarvis, Cory T. Overton
2005, Wildlife Society Bulletin (33) 606-615
There is no formal population survey specifically designed to index population abundance of band-tailed pigeons (Patagioenas fasciata) throughout their range. Data from the Breeding Bird Survey (BBS), Washington and Oregon Mineral-Site (WAORMS) surveys, and Washington Call Count (WACC) survey offer evidence of long-term population decline. We investigated the potential to...
Climatic and topographic controls on the style and timing of Late Quaternary glaciation throughout Tibet and the Himalaya defined by 10Be cosmogenic radionuclide surface exposure dating
L.A. Owen, R.C. Finkel, P.L. Barnard, Ma Haizhou, K. Asahi, M.W. Caffee, E. Derbyshire
2005, Quaternary Science Reviews (24) 1391-1411
Temporal and spatial changes in glacier cover throughout the Late Quaternary in Tibet and the bordering mountains are poorly defined because of the inaccessibility and vastness of the region, and the lack of numerical dating. To help reconstruct the timing and extent of glaciation throughout Tibet and the bordering mountains,...
Evolving force balance at Columbia Glacier, Alaska, during its rapid retreat
Shad O’Neel, W.T. Pfeffer, R. Krimmel, M. Meier
2005, Journal of Geophysical Research F: Earth Surface (110)
Changes in driving and resistive stresses play an essential role in governing the buoyancy forces that are important controls on the speed and irreversibility of tidewater glacier retreats. We describe changes in geometry, velocity, and strain rate and present a top-down force balance analysis performed over the lower reach of...
Field measurements of incision rates following bedrock exposure: Implications for process controls on the long profiles of valleys cut by rivers and debris flows
Jonathan D. Stock, David R. Montgomery, Brian D. Collins, William E. Dietrich, Leonard Sklar
2005, Geological Society of America Bulletin (117) 174-194
Until recently, published rates of incision of bedrock valleys came from indirect dating of incised surfaces. A small but growing literature based on direct measurement reports short-term bedrock lowering at geologically unsustainable rates. We report observations of bedrock lowering from erosion pins monitored over 1–7 yr in 10 valleys that...
Historical record of Yersinia ruckeri and Aeromonas salmonicida among sea-run Atlantic salmon (Salmo salar) in the Penobscot River
R. C. Cipriano, J. Coll
2005, Bulletin of the European Association of Fish Pathologists (25) 280-283
Despite restoration efforts, only about 2,000 Atlantic salmon (Salmo salar) salmon have annually returned to New England Rivers and more than 71% of these fish migrate to the Penobscot River alone. This report provides a historical compilation on the prevalence's of both Yersinia ruckeri, cause of enteric redmouth disease, and...
Software Review: A program for testing capture-recapture data for closure
Thomas R. Stanley, Jon D. Richards
2005, Wildlife Society Bulletin (33) 782-785
Capture-recapture methods are widely used to estimate population parameters of free-ranging animals. Closed-population capture-recapture models, which assume there are no additions to or losses from the population over the period of study (i.e., the closure assumption), are preferred for population estimation over the open-population models, which do not assume closure,...
Estimating population size from DNA-based closed capture-recapture data incorporating genotyping error
P.M. Lukacs, K.P. Burnham
2005, Journal of Wildlife Management (69) 396-403
[No abstract available]...
Life-history habitat matching in invading non-native plant species
T.J. Stohlgren, C. Crosier, G.W. Chong, D. Guenther, P. Evangelista
2005, Plant and Soil (277) 7-18
We briefly reviewed the literature on habitat matching in invading non-native plant species. Then we hypothesized that the richness and cover of native annual and perennial plant species integrate complex local information of vegetation and soils that would help to predict invasion success by similarly adapted non-native plant species. We...
