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Page 386, results 9626 - 9650

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Not all publications have extents, not all extents are completely accurate
Skeletal injuries in small mammals: a multispecies assessment of prevalence and location
Ryan B. Stephens, Christopher B. Burke, Neal Woodman, Lily B. Poland, Rebecca J. Rowe
2018, Journal of Mammalogy (99) 486-497
Wild mammals are known to survive injuries that result in skeletal abnormalities. Quantifying and comparing skeletal injuries among species can provide insight into the factors that cause skeletal injuries and enable survival following an injury. We documented the prevalence and location of structural bone abnormalities in a community of 7...
Rising synchrony controls western North American ecosystems
Bryan A. Black, Peter van der Sleen, Emanuele Di Lorenzo, Daniel Griffin, William J. Sydeman, Jason B. Dunham, Ryan R. Rykaczewski, Marisol Garcia-Reyes, Mohammad Safeeq, Ivan Arismendi, Steven J. Bograd
2018, Global Change Biology (24) 2305-2314
Along the western margin of North America, the winter expression of the North Pacific High (NPH) strongly influences interannual variability in coastal upwelling, storm track position, precipitation, and river discharge. Coherence among these factors induces covariance among physical and biological processes across adjacent marine and terrestrial ecosystems. Here, we show...
The GFDL global atmosphere and land model AM4.0/LM4.0: 2. Model description, sensitivity studies, and tuning strategies
M. Zhao, J.-C. Golaz, I. M. Held, H. Guo, V. Balaji, R. Benson, J.-H. Chen, X. Chen, L. J. Donner, J. P. Dunne, Krista A. Dunne, J. Durachta, S.-M. Fan, S. M. Freidenreich, S. T. Garner, P. Ginoux, L. M. Harris, L. W. Horowitz, J. P. Krasting, A. R. Langenhorst, Z. Liang, P. Lin, S.-J. Lin, Sergey Malyshev, E. Mason, Paul C.D. Milly, Y. Ming, V. Naik, F. Paulot, D. Paynter, P. Phillipps, A. Radhakrishnan, V. Ramaswamy, T. Robinson, D. Schwarzkopf, C. J. Seman, Elena Shevliakova, Z. Shen, H. Shin, L. Silvers, J. R. Wilson, M. Winton, A. T. Wittenberg, B. Wyman, B. Xiang
2018, Journal of Advances in Modeling Earth Systems (10) 691-734
In Part 2 of this two‐part paper, documentation is provided of key aspects of a version of the AM4.0/LM4.0 atmosphere/land model that will serve as a base for a new set of climate and Earth system models (CM4 and ESM4) under development at NOAA's Geophysical Fluid Dynamics Laboratory (GFDL). The...
The GFDL global atmosphere and land model AM4.0/LM4.0: 1. Simulation characteristics with prescribed SSTs
M. Zhao, J.-C. Golaz, I. M. Held, H. Guo, V. Balaji, R. Benson, J.-H. Chen, X. Chen, L. J. Donner, J. P. Dunne, Krista A. Dunne, J. Durachta, S.-M. Fan, S. M. Freidenreich, S. T. Garner, P. Ginoux, L. M. Harris, L. W. Horowitz, J. P. Krasting, A. R. Langenhorst, Z. Liang, P. Lin, S.-J. Lin, S. L. Malyshev, E. Mason, Paul C.D. Milly, Y. Ming, V. Naik, F. Paulot, D. Paynter, P. Phillipps, A. Radhakrishnan, V. Ramaswamy, T. Robinson, D. Schwarzkopf, C. J. Seman, Elena Shevliakova, Z. Shen, H. Shin, L. Silvers, J. R. Wilson, M. Winton, A. T. Wittenberg, B. Wyman, B. Xiang
2018, Journal of Advances in Modeling Earth Systems (10) 735-769
In this two‐part paper, a description is provided of a version of the AM4.0/LM4.0 atmosphere/land model that will serve as a base for a new set of climate and Earth system models (CM4 and ESM4) under development at NOAA's Geophysical Fluid Dynamics Laboratory (GFDL). This version, with roughly 100 km...
The aerosphere as a network connector of organisms and their diseases
Jeremy D. Ross, Eli S. Bridge, Diann J. Prosser, John Y. Takekawa
2018, Book chapter, Aeroecology
Aeroecological processes, especially powered flight of animals, can rapidly connect biological communities across the globe. This can have profound consequences for evolutionary diversification, energy and nutrient transfers, and the spread of infectious diseases. The latter is of particular consequence for human populations, since migratory birds are known to host diseases...
An epidemiological model of virus transmission in salmonid fishes of the Columbia River Basin
Paige F. B. Ferguson, Rachel Breyta, Ilana L. Brito, Gael Kurath, Shannon L. LaDeau
2018, Ecological Modelling (377) 1-15
We have developed a dynamic epidemiological model informed by records of viral presence and genotypes to evaluate potential transmission routes maintaining a viral pathogen in economically and culturally important anadromous fish populations. In the Columbia River Basin, infectious hematopoietic necrosis virus (IHNV) causes severe disease, predominantly in juvenile steelhead trout...
Passage survival of juvenile steelhead, coho salmon, and Chinook salmon in Lake Scanewa and at Cowlitz Falls Dam, Cowlitz River, Washington, 2010–16
Theresa L. Liedtke, Tobias J. Kock, William Hurst
2018, Open-File Report 2018-1050
A multi-year evaluation was conducted during 2010–16 to evaluate passage survival of juvenile steelhead (Oncorhynchus mykiss), Chinook salmon (O. tshawytscha), and coho salmon (O. kisutch) in Lake Scanewa, and at Cowlitz Falls Dam in the upper Cowlitz River Basin, Washington. Reservoir passage survival was evaluated in 2010, 2011, and...
Linking animals aloft with the terrestrial landscape
Jeffrey J. Buler, Wylie C. Barrow Jr., Matthew Boone, Deanna K. Dawson, Robert H. Diehl, Frank R. Moore, Lori A. Randall, Timothy Schreckengost, Jaclyn A. Smolinsky
2018, Book chapter, Aeroecology
Despite using the aerosphere for many facets of their life, most flying animals (i.e., birds, bats, some insects) are still bound to terrestrial habitats for resting, feeding, and reproduction. Comprehensive broad-scale observations by weather surveillance radars of animals as they leave terrestrial habitats for migration or feeding flights can be...
Evaluating micrometeorological estimates of groundwater discharge from Great Basin desert playas
Tracie Jackson, Keith J. Halford, Philip M. Gardner, Amanda Garcia
2018, Ground Water (56) 909-920
Groundwater availability studies in the arid southwestern United States traditionally have assumed that groundwater discharge by evapotranspiration (ETg) from desert playas is a significant component of the groundwater budget. However, desert playa ETg rates are poorly constrained by Bowen Ratio energy budget (BREB) and eddy-covariance (EC) micrometeorological measurement approaches. Best...
High frequency data exposes nonlinear seasonal controls on dissolved organic matter in a large watershed
Matthew Shultz, Brian A. Pellerin, George Aiken, Joseph W. Martin, Peter Raymond
2018, Environmental Science and Technology (52) 5644-5652
We analyzed a five year, high frequency time series generated by an in situ fluorescent dissolved organic matter (fDOM) sensor installed near the Connecticut River’s mouth, investigating high temporal resolution DOM dynamics in a larger watershed and longer time series than previously addressed. We identified a...
Relaxed impact craters on Ganymede: Regional variation and high heat flows
Kelsi N. Singer, Michael T. Bland, Paul M. Schenk, William B. McKinnon
2018, Icarus (306) 214-224
Viscously relaxed craters provide a window into the thermal history of Ganymede, a satellite with copious geologic signs of past high heat flows. Here we present measurements of relaxed craters in four regions for which suitable imaging exists: near Anshar Sulcus, Tiamat Sulcus, northern Marius Regio, and Ganymede's south pole....
Computational fluid dynamics simulations of the Late Pleistocene Lake Bonneville flood
Jose M. Abril-Hernandez, Raul Perianez, Jim E. O'Connor, Daniel Garcia-Castellanos
2018, Journal of Hydrology (561) 1-15
At approximately 18.0 ka, pluvial Lake Bonneville reached its maximum level. At its northeastern extent it was impounded by alluvium of the Marsh Creek Fan, which breached at some point north of Red Rock Pass (Idaho), leading to one of the largest floods on Earth. About 5320 km3 of water was discharged into...
Spatial factors of white-tailed deer herbivory assessment in the central Appalachian Mountains
Andrew B. Kniowski, W. Mark Ford
2018, Environmental Monitoring and Assessment (190) 1-13
Because moderate to over-abundant white-tailed deer (Odocoileus virginianus) herbivory impacts biodiversity and can alter community function, ecological benchmarks of herbivory impact are needed to assess deer impacts. We evaluated spatial patterns of deer herbivory and their relation to herbivory assessment by evaluating woody vegetation along 20 transects at...
Incorporating spatially heterogeneous infiltration capacity into hydrologic models with applications for simulating post‐wildfire debris flow initiation
Luke A. McGuire, Francis K. Rengers, Jason W. Kean, Dennis M. Staley, Benjamin B. Mirus
2018, Hydrological Processes (32) 1175-1187
Soils in post‐wildfire environments are often characterized by a low infiltration capacity with a high degree of spatial heterogeneity relative to unburned areas. Debris flows are frequently initiated by run‐off in recently burned steeplands, making it critical to develop and test methods for incorporating spatial variability in infiltration capacity into...
Defining “atmospheric river”: How the Glossary of Meteorology helped resolve a debate
F. Martin Ralph, Michael D. Dettinger, Mary M. Cairns, Thomas J. Galarneau, John Eylander
2018, Bulletin of the American Meteorological Society (99) 837-839
Since the term “atmospheric river” (AR) first appeared in modern scientific literature in the early 1990s, it has generated debate about the meaning of the concept. A common popular definition is something along the lines of a “river in the sky,” albeit as a river of water vapor rather than...
Genetic integrity, population status, and long-term viability of isolated populations of shoal bass in the upper Chattahoochee River basin, Georgia
Andrew T. Taylor, James M. Long
2018, Natural Resource Report NPS/CHAT/NRR-2018/1620
This report characterizes the status of multiple isolated Shoal Bass (Micropterus cataractae) populations in the upper Chattahoochee River basin (UCRB), Georgia. The Shoal Bass, a sport fish endemic to the Apalachicola-Chattahoochee-Flint River (ACF) basin, is a fluvial-specialist species considered vulnerable to local extirpations and extinction due to habitat fragmentation and...
Assessing the risk of dreissenid mussel invasion in Texas based on lake physical characteristics and potential for downstream dispersal
Matthew A Barnes, Reynaldo Patino
2018, Report
ebra mussels (Dreissena polymorpha) and quagga mussels (Dreissena bugensis) were likely introduced from Ponto-Caspian Eurasia to the Laurentian Great Lakes inadvertently via ballast water release in the 1980s and have since spread across the US, including Texas. Their spread into the state, including reservoirs in both Brazos River and Colorado...
Identifying cost-effective invasive species control to enhance endangered species populations in the Grand Canyon, USA
Lucas S. Bair, Charles B. Yackulic, Michael R. Springborn, Matthew N. Reimer, Craig A. Bond, Lewis G. Coggins
2018, Biological Conservation (220) 12-20
Recovering endangered species populations when confronted with the threat of invasive species is an ongoing natural resource management challenge. While eradication of the invasive species is often the optimal economic solution, it may not be a feasible nor desirable management action in other cases. For example, when invasive species are desired in one area, but disperse...
Groundwater flow and heat transport for systems undergoing freeze-thaw: Intercomparison of numerical simulators for 2D test cases
Christophe Grenier, Hauke Anbergen, Victor F. Bense, Quentin Chanzy, Ethan Coon, Nathaniel Collier, François Costard, Michel Ferry, Andrew Frampton, Jennifer M. Frederick, Julio Goncalves, Johann Holmen, Anne Jost, Samuel Kokh, Barret L. Kurylyk, Jeffrey M. McKenzie, John W. Molson, Emmanuel Mouche, Laurent Orgogozo, Romain Pannetier, Agnes Riviere, Nicolas Roux, Wolfram Ruhaak, Johanna Scheidegger, Jan-Olof Selroos, Rene Therrien, Patrik Vidstrand, Clifford I. Voss
2018, Advances in Water Resources (114) 196-218
In high-elevation, boreal and arctic regions, hydrological processes and associated water bodies can be strongly influenced by the distribution of permafrost. Recent field and modeling studies indicate that a fully-coupled multidimensional thermo-hydraulic approach is required to accurately model the evolution of these permafrost-impacted landscapes and groundwater systems. However, the relatively...
New petrological, geochemical, and geochronological perspectives on andesite-dacite magma genesis at Ruapehu volcano, New Zealand
Chris E Conway, John A Gamble, Colin J.N. Wilson, Graham S. Leonard, Dougal B. Townsend, Andrew T. Calvert
2018, American Mineralogist (103) 565-581
Time–composition relationships in eruptive sequences at composite volcanoes can show how the ongoing intrusion of magmas progressively affects the lithosphere at continental convergent margins. Here, new whole-rock and microanalytical major and trace element data from andesite-dacite lava flows are integrated with previous...
Monogenetic origin of Ubehebe Crater maar volcano, Death Valley, California: Paleomagnetic and stratigraphic evidence
Duane E. Champion, Andrew J. Cyr, Judith Fierstein, Edward Hildreth
2018, Journal of Volcanology and Geothermal Research (354) 67-73
Paleomagnetic data for samples collected from outcrops of basaltic spatter at the Ubehebe Crater cluster, Death Valley National Park, California, record a single direction of remanent magnetization indicating that these materials were emplaced during a short duration, monogenetic eruption sequence ~ 2100 years ago. This conclusion is supported by geochemical data encompassing a narrow...
Factors impacting hunter access to private lands in southeast Minnesota
Eric Walberg, Louis Cornicelli, David C. Fulton
2018, Human Dimensions of Wildlife (23) 101-114
White-tailed deer (Odocoileus virginianus) have important socioeconomic and ecological impacts in the United States. Hunting is considered to be important for the effective management of deer and relies on access to privately owned lands. In 2013, we surveyed nonindustrial private landowners in southeast Minnesota and created two logit models to...
Estimating the effects of wetland conservation practices in croplands: Approaches for modeling in CEAP–Cropland Assessment
Diane De Steven, David Mushet
2018, Report
Quantifying the current and potential benefits of conservation practices can be a valuable tool for encouraging greater practice adoption on agricultural lands. A goal of the CEAP-Cropland Assessment is to estimate the environmental effects of conservation practices that reduce losses (exports) of soil, nutrients, and pesticides from farmlands to streams...
Multiple drivers, scales, and interactions influence southern Appalachian stream salamander occupancy
Kristen K. Cecala, John C. Maerz, Brian J. Halstead, John R. Frisch, Ted L. Gragson, Jeffrey Hepinstall-Cymerman, David S. Leigh, C. Rhett Jackson, James T. Peterson, Catherine M. Pringle
2018, Ecosphere (9) 1-19
Understanding how factors that vary in spatial scale relate to population abundance is vital to forecasting species responses to environmental change. Stream and river ecosystems are inherently hierarchical, potentially resulting in organismal responses to fine‐scale changes in patch characteristics that are conditional on the watershed context. Here, we address how...
Evaluating the conservation potential of tributaries for native fishes in the Upper Colorado River Basin
Brian G. Laub, Gary P. Thiede, William W. Macfarlane, Phaedra E. Budy
2018, Fisheries Magazine (43) 194-206
We explored the conservation potential of tributaries in the upper Colorado River basin by modeling native fish species richness as a function of river discharge, temperature, barrier‐free length, and distance to nearest free‐flowing main‐stem section. We investigated a historic period prior to large‐scale water development and a contemporary period. In...