Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: STATSGO Soil Characteristics
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 491-26
This tabular data set represents estimated soil variables compiled for every MRB_E2RF1 catchment of selected Major River Basins (MRBs, Crawford and others, 2006). The variables included are cation exchange capacity, percent calcium carbonate, slope, water-table depth, soil thickness, hydrologic soil group, soil erodibility (k-factor), permeability, average water capacity, bulk density,...
A new look at photometry of the Moon
J.D. Goguen, T.C. Stone, H. H. Kieffer, B. J. Buratti
2010, Icarus (208) 548-557
We use ROLO photometry (Kieffer, H.H., Stone, T.C. [2005]. Astron. J. 129, 2887-2901) to characterize the before and after full Moon radiance variation for a typical highlands site and a typical mare site. Focusing on the phase angle range 45??. <. ??<. 50??, we test two different physical models, macroscopic...
Diurnal variation in invertebrate catch rates by sticky traps: Potential for biased indices of piping plover forage
M.J. Anteau, M. H. Sherfy
2010, Wetlands (30) 757-762
Measuring abundance of invertebrate forage for piping plovers (Charadrius melodus; hereafter plovers), a federally listed species in the USA, is an important component of research and monitoring targeted toward species recovery. Sticky traps are commonly used to passively sample invertebrates, but catch rates may vary diurnally or in response to...
Migration of northern yellowstone elk: Implications of spatial structuring
P.J. White, K.M. Proffitt, L.D. Mech, S.B. Evans, J.A. Cunningham, K.L. Hamlin
2010, Journal of Mammalogy (91) 827-837
Migration can enhance survival and recruitment of mammals by increasing access to higher-quality forage or reducing predation risk, or both. We used telemetry locations collected from 140 adult female elk during 20002003 and 20072008 to identify factors influencing the migration of northern Yellowstone elk. Elk wintered in 2 semidistinct herd...
Small mammals associated with colonies of black-tailed prairie dogs (Cynomys ludovicianus) in the Southern High Plains
A.L. Pruett, C. W. Boal, M.C. Wallace, Heather A. Whitlaw, J.D. Ray
2010, Southwestern Naturalist (55) 50-56
We compared diversity and abundance of small mammals at colonies of black-tailed prairie dogs (Cynomys ludovicianus) and paired non-colony sites. Of colonies of black-tailed prairie dogs in our study area, >80 were on slopes of playa lakes; thus, we used sites of colonies and non-colonies that were on slopes of...
A simplified In Situ cosmogenic 14C extraction system
J.S. Pigati, N.A. Lifton, A.J. Timothy Jull, Jay Quade
2010, Radiocarbon (52) 1236-1243
We describe the design, construction, and testing of a new, simplified in situ radiocarbon extraction system at the University of Arizona. Blank levels for the new system are low ((234 ?? 11) ?? 103 atoms (1 ??; n = 7)) and stable. The precision of a given measurement depends on...
Inter-regional comparison of land-use effects on stream metabolism
M. J. Bernot, D. J. Sobota, R.O. Hall, P. J. Mulholland, W. K. Dodds, J.R. Webster, J. L. Tank, L. R. Ashkenas, L. W. Cooper, Clifford N. Dahm, S.V. Gregory, N. B. Grimm, S. K. Hamilton, S. L. Johnson, W. H. McDowell, J.L. Meyer, B. Peterson, G. C. Poole, Valett H.M. Maurice, C. Arango, J. J. Beaulieu, A. J. Burgin, C. Crenshaw, A. M. Helton, L. Johnson, J. Merriam, B.R. Niederlehner, J. M. O’Brien, J. D. Potter, R.W. Sheibley, S. M. Thomas, K. Wilson
2010, Freshwater Biology (55) 1874-1890
1. Rates of whole-system metabolism (production and respiration) are fundamental indicators of ecosystem structure and function. Although first-order, proximal controls are well understood, assessments of the interactions between proximal controls and distal controls, such as land use and geographic region, are lacking. Thus, the influence of land use on stream...
A review of the genus Agapetus Curtis (Trichoptera: Glossosomatidae) in eastern and central North America, with description of 12 new species
David A. Etnier, Charles R. Parker, John T. Baxter Jr., Todd M. Long
2010, Insecta Mundi (149)
Twenty-nine species of caddisflies in the genus Agapetus Curtis in eastern and central North America are reviewed. Twelve are described as new species: Agapetus aphallus (known only from females); Agapetus baueri, Agapetus flinti, Agapetus harrisi, Agapetus hesperus, Agapetus ibis, Agapetus kirchneri, Agapetus meridionalis, Agapetus pegram, Agapetus ruiteri, Agapetus stylifer, and...
Uncovering a latent multinomial: Analysis of mark-recapture data with misidentification
W.A. Link, J. Yoshizaki, L.L. Bailey, K. H. Pollock
2010, Biometrics (66) 178-185
Natural tags based on DNA fingerprints or natural features of animals are now becoming very widely used in wildlife population biology. However, classic capture-recapture models do not allow for misidentification of animals which is a potentially very serious problem with natural tags. Statistical analysis of misidentification processes is extremely difficult...
Calibration and filtering strategies for frequency domain electromagnetic data
Burke J. Minsley, Bruce D. Smith, Richard Hammack, James I. Sams, Garret Veloski
2010, Conference Paper, Symposium on the Application of Geophysics to Engineering and Environmental Problems 2010
echniques for processing frequency-domain electromagnetic (FDEM) data that address systematic instrument errors and random noise are presented, improving the ability to invert these data for meaningful earth models that can be quantitatively interpreted. A least-squares calibration method, originally developed for airborne electromagnetic datasets, is implemented for a ground-based survey in...
Seismic hazard of the Enriquillog-Plantain Garden fault in Haiti inferred from palaeoseismology
C.S. Prentice, P. Mann, A. J. Crone, R.D. Gold, K.W. Hudnut, R.W. Briggs, R.D. Koehler, P. Jean
2010, Nature Geoscience (3) 789-793
The Enriquillog-Plantain Garden fault zone is recognized as one of the primary plate-bounding fault systems in Haiti. The strike-slip fault runs adjacent to the city of Port-au-Prince and was initially thought to be the source of the 12 January 2010, M w 7.0 earthquake. Haiti experienced significant earthquakes in 1751...
Conservation practice establishment in two northeast Iowa watersheds: Strategies, water quality implications, and lessons learned
Philip W. Gassman, J.A. Tisl, E.A. Palas, C.L. Fields, T.M. Isenhart, K. E. Schilling, C.F. Wolter, L.S. Seigley, M.J. Helmers
2010, Journal of Soil and Water Conservation (65) 381-392
Coldwater trout streams are important natural resources in northeast Iowa. Extensive efforts have been made by state and federal agencies to protect and improve water quality in northeast Iowa streams that include Sny Magill Creek and Bloody Run Creek, which are located in Clayton County. A series of three water...
Hierarchical multi-scale classification of nearshore aquatic habitats of the Great Lakes: Western Lake Erie
J.E. McKenna, C. Castiglione
2010, Journal of Great Lakes Research (36) 757-771
Classification is a valuable conservation tool for examining natural resource status and problems and is being developed for coastal aquatic habitats. We present an objective, multi-scale hydrospatial framework for nearshore areas of the Great Lakes. The hydrospatial framework consists of spatial units at eight hierarchical scales from the North American...
Survival and breeding of polar bears in the southern Beaufort Sea in relation to sea ice
E.V. Regehr, C.M. Hunter, H. Caswell, Steven C. Amstrup, I. Stirling
2010, Journal of Animal Ecology (79) 117-127
1. Observed and predicted declines in Arctic sea ice have raised concerns about marine mammals. In May 2008, the US Fish and Wildlife Service listed polar bears (Ursus maritimus) - one of the most ice-dependent marine mammals - as threatened under the US Endangered Species Act. 2. We evaluated the...
Characterization of dissolved organic matter in fogwater by excitation-emission matrix fluorescence spectroscopy
J.E. Birdwell, K.T. Valsaraj
2010, Atmospheric Environment (44) 3246-3253
Dissolved organic matter (DOM) present in fogwater samples collected in southeastern Louisiana and central-eastern China has been characterized using excitation-emission matrix fluorescence spectroscopy. The goal of the study was to illustrate the utility of fluorescence for obtaining information on the large fraction of organic carbon in fogwaters (typically >40% by...
Implementing the National Integrated Ocean Observing System (IOOS): from the federal agency perspective
R. Bassett, R. Beard, W. Burnett, R. Crout, B. Griffith, R. Jensen, R. Signell
2010, Marine Technology Society Journal (44) 32-41
The national Integrated Ocean Observing System (IOOS??) is responsible for coordinating a network of people, resources, and technology to disseminate continuous data, information, models, products, and services made throughout our coastal waters, Great Lakes, and the oceans. There are many components of the IOOS-including government, academic, and private entities. This...
East-west genetic differentiation in Musk Ducks (Biziura lobata) of Australia suggests late Pleistocene divergence at the Nullarbor Plain
P.-J. Guay, R.T. Chesser, R.A. Mulder, A. D. Afton, D.C. Paton, K. G. McCracken
2010, Conservation Genetics (11) 2105-2120
Musk Ducks (Biziura lobata) are endemic to Australia and occur as two geographically isolated populations separated by the Nullarbor Plain, a vast arid region in southern Australia. We studied genetic variation in Musk Duck populations at coarse (eastern versus western Australia) and fine scales (four sites within eastern Australia). We...
Controls of suspended sediment concentration, nutrient content, and transport in a subtropical wetland
G.B. Noe, J. W. Harvey, R.W. Schaffranek, L. G. Larsen
2010, Wetlands (30) 39-54
Redistribution of largely organic sediment from low elevation sloughs to higher elevation ridges is a leading hypothesis for the formation and maintenance of the native ridge and slough landscape pattern found in peat wetlands of the Florida Everglades. We tested this redistribution hypothesis by measuring the concentration and characteristics of...
A spatial resolution threshold of land cover in estimating terrestrial carbon sequestration in four counties in Georgia and Alabama, USA
S.Q. Zhao, S. Liu, Z. Li, Terry L. Sohl
2010, Biogeosciences (7) 71-80
Changes in carbon density (i.e., carbon stock per unit area) and land cover greatly affect carbon sequestration. Previous studies have shown that land cover change detection strongly depends on spatial scale. However, the influence of the spatial resolution of land cover change information on the estimated terrestrial carbon sequestration is...
Mineralogy and the release of trace elements from slag from the Hegeler Zinc smelter, Illinois (USA)
Nadine M. Piatak, Robert R. Seal II
2010, Applied Geochemistry (25) 302-320
Slag from the former Hegeler Zn-smelting facility in Illinois (USA) is mainly composed of spinifex Ca-rich plagioclase, fine-grained dendritic or coarse-grained subhedral to anhedral clinopyroxenes, euhedral to subhedral spinels, spherical blebs of Fe sulfides, silicate glass, and less commonly fayalitic olivine. Mullite and quartz were also identified in one sample...
Groundwater nutrient concentrations during prairie reconstruction on an Iowa landscape
M.D. Tomer, K. E. Schilling, C.A. Cambardella, P. Jacobson, P. Drobney
2010, Agriculture, Ecosystems and Environment (139) 206-213
One anticipated benefit of ecosystem restoration is water quality improvement. This study evaluated NO3-N and phosphorus in subsurface waters during prairie establishment following decades of row-crop agriculture. A prairie seeding in late 2003 became established in 2006. Wells and suction cup samplers were monitored for NO3-N and phosphorus. Nitrate-N varied...
Can selection on nest size from nest predation explain the latitudinal gradient in clutch size?
L. Biancucci, T. E. Martin
2010, Journal of Animal Ecology (79) 1086-1092
1. Latitudinal variation in clutch sizes of birds is a well described, but poorly understood pattern. Many hypotheses have been proposed, but few have been experimentally tested, and none have been universally accepted by researchers. 2. The nest size hypothesis posits that higher nest predation in the tropics favours selection...
Spatial distribution of pingos in Northern Asia
G. Grosse, Benjamin M. Jones
2010, Cryosphere Discussions (4) 1781-1837
Pingos are prominent periglacial landforms in vast regions of the Arctic and Subarctic. They are indicators of modern and past conditions of permafrost, surface geology, hydrology and climate. A first version of a detailed spatial geodatabase of more than 6000 pingo locations in a 3.5 ?? 106 km2 region of...
Ecology of the brain trematode Euhaplorchis californiensis and its host, the California Killifish (Fundulus parvipinnis)
J.C. Shaw, R.F. Hechinger, Kevin D. Lafferty, Armand M. Kuris
2010, Journal of Parasitology (96) 482-490
We describe the distribution and abundance of the brain-encysting trematode Euhaplorchis californiensis and its second intermediate host, the California killifish (Fundulus parvipinnis), in 3 estuaries in southern California and Baja California. We quantified the density of fish and metacercariae at 13–14 sites per estuary and dissected 375 killifish. Density (numbers and biomass)...
Using occupancy models to understand the distribution of an amphibian pathogen, Batrachochytrium dendrobatidis
M. J. Adams, Nathan Chelgren, David M. Reinitz, Rebecca A. Cole, L.J. Rachowicz, Stephanie Galvan, Brome McCreary, Christopher A. Pearl, Larissa L. Bailey, Jamie B. Bettaso, Evelyn L. Bull, Matthias Leu
2010, Ecological Applications (20) 289-302
Batrachochytrium dendrobatidis is a fungal pathogen that is receiving attention around the world for its role in amphibian declines. Study of its occurrence patterns is hampered by false negatives: the failure to detect the pathogen when it is present. Occupancy models are a useful but currently underutilized tool for analyzing...
