Fifty-second supplement to the American Ornithologists' Union Check-list of North American Birds
R. Terry Chesser, Richard C. Banks, F. Keith Barker, Carla Cicero, Jon L. Dunn, Andrew W. Kratter, Irby J. Lovette, Pamela C. Rasmussen, J.V. Remsen Jr., James D. Rising, Douglas F. Stotz, Kevin Winker
2011, The Auk (128) 600-613
This is the 11th supplement since publication of the seventh edition of the Check-list of North American Birds (American Ornithologists' Union AOU 1998). It summarizes decisions made between 1 April 2010 and 15 April 2011 by the AOU's Committee on Classification and Nomenclature-North and Middle America. The Committee has continued...
Resource selection by black-footed ferrets in South Dakota and Montana
D.S. Jachowski, J.J. Millspaugh, E. Biggins, T.M. Livieri, Marc R. Matchett, C.D. Rittenhouse
2011, Natural Areas Journal (31) 218-225
The black-footed ferret (Mustela nigripes), once extinct in the wild, remains one of the most critically endangered mammals in North America despite 18 years of reintroduction attempts. Because black-footed ferrets are specialized predators of prairie dogs (Cynomys sp.), a better understanding of how black-footed ferrets select resources might provide insight...
The dynamical core, physical parameterizations, and basic simulation characteristics of the atmospheric component AM3 of the GFDL global coupled model CM3
L.J. Donner, B.L. Wyman, R.S. Hemler, L.W. Horowitz, Y. Ming, M. Zhao, J.-C. Golaz, P. Ginoux, S.-J. Lin, M.D. Schwarzkopf, J. Austin, G. Alaka, W.F. Cooke, T.L. Delworth, S.M. Freidenreich, C.T. Gordon, S.M. Griffies, I.M. Held, W.J. Hurlin, S.A. Klein, T.R. Knutson, A.R. Langenhorst, H.-C. Lee, Y. Lin, B.I. Magi, S.L. Malyshev, Paul Milly, V. Naik, M.J. Nath, R. Pincus, J.J. Ploshay, V. Ramaswamy, C.J. Seman, E. Shevliakova, J.J. Sirutis, W.F. Stern, R.J. Stouffer, R.J. Wilson, M. Winton, A.T. Wittenberg, F. Zeng
2011, Journal of Climate (24) 3484-3519
The Geophysical Fluid Dynamics Laboratory (GFDL) has developed a coupled general circulation model (CM3) for the atmosphere, oceans, land, and sea ice. The goal of CM3 is to address emerging issues in climate change, including aerosol–cloud interactions, chemistry–climate interactions, and coupling between the troposphere and stratosphere. The model is also...
Independent effects of temperature and precipitation on modeled runoff in the conterminous United States
Gregory J. McCabe, David M. Wolock
2011, Water Resources Research (47)
A water‐balance model is used to simulate time series of water‐year runoff for 4 km × 4 km grid cells for the conterminous United States during the 1900–2008 period. Model outputs are used to examine the separate effects of precipitation and temperature on runoff variability. Overall, water‐year runoff has increased...
Relationships among rotational and conventional grazing systems, stream channels, and macroinvertebrates
K.L. Raymond, B. Vondracek
2011, Hydrobiologia (669) 105-117
Cattle grazing in riparian areas can reduce water quality, alter stream channel characteristics, and alter fish and macroinvertebrate assemblage structure. The U.S. Department of Agriculture, Natural Resources Conservation Services has recommended Rotational Grazing (RG) as an alternative management method on livestock and dairy operations to protect riparian areas and water...
Final report on the Seventh International Comparison of Absolute Gravimeters (ICAG 2005)
Z. Jiang, O. Francis, L. Vitushkin, V. Palinkas, A. Germak, M. Becker, G. D’Agostino, M. Amalvict, R. Bayer, M. Bilker-Koivula, S. Desogus, J. Faller, R. Falk, J. Hinderer, C. Gagnon, T. Jakob, E. Kalish, J. Kostelecky, C. Lee, J. Liard, Y. Lokshyn, B. Luck, J. Makinen, S. Mizushima, Moigne N. Le, C. Origlia, E.R. Pujol, P. Richard, L. Robertsson, D. Ruess, D. Schmerge, Y. Stus, S. Svitlov, S. Thies, C. Ullrich, M. Van Camp, A. Vitushkin, W. Ji, H. Wilmes
2011, Metrologia (48) 246-260
The Bureau International des Poids et Mesures (BIPM), Sevres, France, hosted the 7th International Comparison of Absolute Gravimeters (ICAG) and the associated Relative Gravity Campaign (RGC) from August to September 2005.;ICAG 2005 was prepared and performed as a metrological pilot study, which aimed:;(1) To determine the gravity comparison reference values;;(2)...
Contribution of global groundwater depletion since 1900 to sea-level rise
Leonard F. Konikow
2011, Geophysical Research Letters (38)
Removal of water from terrestrial subsurface storage is a natural consequence of groundwater withdrawals, but global depletion is not well characterized. Cumulative groundwater depletion represents a transfer of mass from land to the oceans that contributes to sea-level rise. Depletion is directly calculated using calibrated groundwater models, analytical approaches, or...
Consequences of long-distance swimming and travel over deep-water pack ice for a female polar bear during a year of extreme sea ice retreat
George M. Durner, J.P. Whiteman, H.J. Harlow, Steven C. Amstrup, E.V. Regehr, M. Ben-David
2011, Polar Biology (34) 975-984
Polar bears (Ursus maritimus) prefer to live on Arctic sea ice but may swim between ice floes or between sea ice and land. Although anecdotal observations suggest that polar bears are capable of swimming long distances, no data have been available to describe in detail long distance swimming...
Scale-dependent factors affecting North American river otter distribution in the midwest
Mackenzie R. Jeffress, Craig P. Paukert, Joanna B. Whittier, B. K. Sandercock, P. S. Gipson
2011, American Midland Naturalist (166) 177-193
The North American river otter (Lontra canadensis) is recovering from near extirpation throughout much of its range. Although reintroductions, trapping regulations and habitat improvements have led to the reestablishment of river otters in the Midwest, little is known about how their distribution is influenced by local- and landscape-scale habitat....
Use of waveform lidar and hyperspectral sensors to assess selected spatial and structural patterns associated with recent and repeat disturbance and the abundance of sugar maple (Acer saccharum Marsh.) in a temperate mixed hardwood and conifer forest
J.E. Anderson, Mark J. Ducey, A. Fast, M.E. Martin, L. Lepine, M.-L. Smith, T.D. Lee, R.O. Dubayah, M.A. Hofton, P. Hyde, Birgit Peterson, J.B. Blair
2011, Journal of Applied Remote Sensing (5)
Waveform lidar imagery was acquired on September 26, 1999 over the Bartlett Experimental Forest (BEF) in New Hampshire (USA) using NASA's Laser Vegetation Imaging Sensor (LVIS). This flight occurred 20 months after an ice storm damaged millions of hectares of forestland in northeastern North America. Lidar measurements of the amplitude...
Estimating phosphorus availability for microbial growth in an emerging landscape
S.K. Schmidt, C.C. Cleveland, D.R. Nemergut, S.C. Reed, A.J. King, P. Sowell
2011, Geoderma (163) 135-140
Estimating phosphorus (P) availability is difficult—particularly in infertile soils such as those exposed after glacial recession—because standard P extraction methods may not mimic biological acquisition pathways. We developed an approach, based on microbial CO2 production kinetics and conserved carbon:phosphorus (C:P) ratios, to estimate the amount of P available for microbial...
Acetate availability and its influence on sustainable bioremediation of Uranium-contaminated groundwater
K.H. Williams, P.E. Long, J.A. Davis, M.J. Wilkins, A. L. N’Guessan, Carl Steefel, L. Yang, D. Newcomer, F.A. Spane, L.J. Kerkhof, L. Mcguinness, R. Dayvault, Derek R. Lovley
2011, Geomicrobiology Journal (28) 519-539
Field biostimulation experiments at the U.S. Department of Energy's Integrated Field Research Challenge (IFRC) site in Rifle, Colorado, have demonstrated that uranium concentrations in groundwater can be decreased to levels below the U.S. Environmental Protection Agency's (EPA) drinking water standard (0.126 μM). During successive summer experiments – referred to as...
Planktivory in the changing Lake Huron zooplankton community: Bythotrephes consumption exceeds that of Mysis and fish
D.B. Bunnell, R. Douglas Hunter, D.M. Warner, M.A. Chriscinske, E.F. Roseman
2011, Freshwater Biology (56) 1281-1296
Oligotrophic lakes are generally dominated by calanoid copepods because of their competitive advantage over cladocerans at low prey densities. Planktivory also can alter zooplankton community structure. We sought to understand the role of planktivory in driving recent changes to the zooplankton community of Lake Huron, a large oligotrophic lake on...
Dynamic resource allocation in conservation planning
D. Golovin, A. Krause, B. Gardner, Sarah J. Converse, S. Morey
2011, Conference Paper, Proceedings of the National Conference on Artificial Intelligence
Consider the problem of protecting endangered species by selecting patches of land to be used for conservation purposes. Typically, the availability of patches changes over time, and recommendations must be made dynamically. This is a challenging prototypical example of a sequential optimization problem under uncertainty in computational sustainability. Existing techniques...
Methane oxidation in a crude oil contaminated aquifer: Delineation of aerobic reactions at the plume fringes
R.T. Amos, Barbara A. Bekins, Geoffrey N. Delin, Isabelle M. Cozzarelli, D.W. Blowes, J. D. Kirshtein
2011, Journal of Contaminant Hydrology (125) 13-25
High resolution direct-push profiling over short vertical distances was used to investigate CH4 attenuation in a petroleum contaminated aquifer near Bemidji, Minnesota. The contaminant plume was delineated using dissolved gases, redox sensitive components, major ions, carbon isotope ratios in CH4 and CO2, and the presence of methanotrophic bacteria. Sharp redox gradients were observed near the...
Detecting aseismic strain transients from seismicity data
Andrea L. Llenos, Jeffrey J. McGuire
2011, Journal of Geophysical Research B: Solid Earth (116)
Aseismic deformation transients such as fluid flow, magma migration, and slow slip can trigger changes in seismicity rate. We present a method that can detect these seismicity rate variations and utilize these anomalies to constrain the underlying variations in stressing rate. Because ordinary aftershock sequences often obscure changes in the...
Circum-Arctic mapping project: New magnetic and gravity anomaly maps of the Arctic
C. Gaina, S.C. Werner, R. Saltus, S. Maus, S. Aaro, D. Damaske, R. Forsberg, V. Glebovsky, Kevin K. Johnson, J. Jonberger, T. Koren, J. Korhonen, T. Litvinova, G. Oakey, O. Olesen, O. Petrov, M. Pilkington, T. Rasmussen, B. Schreckenberger, M. Smelror
2011, Geological Society Memoir 39-48
New Circum-Arctic maps of magnetic and gravity anomalies have been produced by merging regional gridded data. Satellite magnetic and gravity data were used for quality control of the long wavelengths of the new compilations. The new Circum-Arctic digital compilations of magnetic, gravity and some of their derivatives have been analyzed...
Geology and petroleum potential of the rifted margins of the Canada Basin
D.W. Houseknecht, Kenneth J. Bird
2011, Geological Society Memoir 509-526
Three sides of the Canada Basin are bordered by high-standing, conjugate rift shoulders of the Chukchi Borderland, Alaska and Canada. The Alaska and Canada margins are mantled with thick, growth-faulted sediment prisms, and the Chukchi Borderland contains only a thin veneer of sediment. The rift-margin strata of Alaska and Canada...
Predator-induced demographic shifts in coral reef fish assemblages
B.I. Ruttenberg, S.L. Hamilton, S.M. Walsh, Mary Donovan, Alan M. Friedlander, E. DeMartini, E. Sala, S.A. Sandin
2011, PLoS ONE (6)
In recent years, it has become apparent that human impacts have altered community structure in coastal and marine ecosystems worldwide. Of these, fishing is one of the most pervasive, and a growing body of work suggests that fishing can have strong effects on the ecology of target species, especially top...
Redefinition and global estimation of basal ecosystem respiration rate
W. Yuan, Y. Luo, X. Li, S. Liu, G. Yu, T. Zhou, M. Bahn, A. Black, A.R. Desai, A. Cescatti, B. Marcolla, C. Jacobs, J. Chen, M. Aurela, C. Bernhofer, B. Gielen, G. Bohrer, D.R. Cook, D. Dragoni, A.L. Dunn, D. Gianelle, T. Grnwald, A. Ibrom, M.Y. Leclerc, A. Lindroth, H. Liu, L.B. Marchesini, L. Montagnani, G. Pita, M. Rodeghiero, A. Rodrigues, G. Starr, Paul C. Stoy
2011, Global Biogeochemical Cycles (25) 1-14
Basal ecosystem respiration rate (BR), the ecosystem respiration rate at a given temperature, is a common and important parameter in empirical models for quantifying ecosystem respiration (ER) globally. Numerous studies have indicated that BR varies in space. However, many empirical ER models still use a global constant BR largely due...
Evidence of two genetic clusters of manatees with low genetic diversity in Mexico and implications for their conservation
C. Nourisson, B. Morales-Vela, J. Padilla-Saldivar, K.P. Tucker, A. Clark, L. D. Olivera-Gomez, Robert K. Bonde, P. McGuire
2011, Genetica (139) 833-842
The Antillean manatee (Trichechus manatus manatus) occupies the tropical coastal waters of the Greater Antilles and Caribbean, extending from Mexico along Central and South America to Brazil. Historically, manatees were abundant in Mexico, but hunting during the pre-Columbian period, the Spanish colonization and throughout the history of Mexico, has resulted...
Cassini SAR, radiometry, scatterometry and altimetry observations of Titan's dune fields
Gall A. Le, M.A. Janssen, L. C. Wye, A. G. Hayes, J. Radebaugh, C. Savage, H. Zebker, R. D. Lorenz, J. I. Lunine, Randolph L. Kirk, R. M. C. Lopes, S. Wall, P. Callahan, E. R. Stofan, Tom Farr
2011, Icarus (213) 608-624
Large expanses of linear dunes cover Titan’s equatorial regions. As the Cassini mission continues, more dune fields are becoming unveiled and examined by the microwave radar in all its modes of operation (SAR, radiometry, scatterometry, altimetry) and with an increasing variety of observational geometries. In this paper, we report on...
Distribution, population status and trends of Kittlitz's murrelet Brachyramphus brevirostris in Lower Cook Inlet and Kachemak Bay, Alaska
Kathy J. Kuletz, Suzann G. Speckman, John F. Piatt, E.A. Labunski
2011, Marine Ornithology: Journal of Seabird Research and Conservation (39) 85-95
Lower Cook Inlet (LCI) in south-central Alaska is unusual among the breeding areas of Kittlitz's Murrelet Brachyramphus brevirostris because of human impacts on the marine and terrestrial environments and because of the lack of tidewater glaciers. In LCI the Kittlitz's Murrelet co-exists with the more abundant Marbled Murrelet, which complicates...
Genetic differentiation of the Kittlitz's Murrelet Brachyramphus brevirostris in the Aleutian Islands and Gulf of Alaska
T.P. Birt, D. Mackinnon, John F. Piatt, Vicki L. Friesen
2011, Marine Ornithology: Journal of Seabird Research and Conservation (39) 45-51
Information about the distribution of genetic variation within and among local populations of the Kittlitz's Murrelet Brachyramphus brevirostris is needed for effective conservation of this rare and declining species. We compared variation in a 429 base pair fragment of the mitochondrial control region and 11 microsatellite loci among 53 Kittlitz's...
Evaluation of TRIGRS (transient rainfall infiltration and grid-based regional slope-stability analysis)'s predictive skill for hurricane-triggered landslides: A case study in Macon County, North Carolina
Z. Liao, Y. Hong, D. Kirschbaum, R.F. Adler, J.J. Gourley, R. Wooten
2011, Natural Hazards (58) 325-339
The key to advancing the predictability of rainfall-triggered landslides is to use physically based slope-stability models that simulate the transient dynamical response of the subsurface moisture to spatiotemporal variability of rainfall in complex terrains. TRIGRS (transient rainfall infiltration and grid-based regional slope-stability analysis) is a USGS landslide prediction model, coded...
