Publications
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Filter Total Items: 32
Using tri-axial accelerometers to identify wild polar bear behaviors Using tri-axial accelerometers to identify wild polar bear behaviors
Tri-axial accelerometers have been used to remotely identify the behaviors of a wide range of taxa. Assigning behaviors to accelerometer data often involves the use of captive animals or surrogate species, as their accelerometer signatures are generally assumed to be similar to those of their wild counterparts. However, this has rarely been tested. Validated accelerometer data are needed...
Authors
Anthony Pagano, Karyn Rode, A. Cutting, M.A. Owen, S. Jensen, J.V. Ware, C.T. Robbins, George Durner, Todd Atwood, M.E. Obbard, K.R. Middel, G.W. Thiemann, T.M. Williams
Patterns in Greater Sage-grouse population dynamics correspond with public grazing records at broad scales Patterns in Greater Sage-grouse population dynamics correspond with public grazing records at broad scales
Human land use, such as livestock grazing, can have profound yet varied effects on wildlife interacting within common ecosystems, yet our understanding of land-use effects is often generalized from short-term, local studies that may not correspond with trends at broader scales. Here we used public land records to characterize livestock grazing across Wyoming, USA, and we used Greater...
Authors
Adrian P. Monroe, Cameron Aldridge, Timothy Assal, Kari Veblen, David Pyke, Michael Casazza
Inner-shelf ocean dynamics and seafloor morphologic changes during Hurricane Sandy Inner-shelf ocean dynamics and seafloor morphologic changes during Hurricane Sandy
Hurricane Sandy was one of the most destructive hurricanes in US history, making landfall on the New Jersey coast on Oct 30, 2012. Storm impacts included several barrier island breaches, massive coastal erosion, and flooding. While changes to the subaerial landscape are relatively easily observed, storm-induced changes to the adjacent shoreface and inner continental shelf are more...
Authors
John C. Warner, William Schwab, Jeffrey List, Ilgar Safak, Maria Liste, Wayne Baldwin
Parameter regionalization of a monthly water balance model for the conterminous United States Parameter regionalization of a monthly water balance model for the conterminous United States
A parameter regionalization scheme to transfer parameter values from gaged to ungaged areas for a monthly water balance model (MWBM) was developed and tested for the conterminous United States (CONUS). The Fourier Amplitude Sensitivity Test, a global-sensitivity algorithm, was implemented on a MWBM to generate parameter sensitivities on a set of 109 951 hydrologic response units (HRUs)...
Authors
Andrew Bock, Lauren Hay, Gregory J. McCabe, Steven Markstrom, R. Dwight Atkinson
Making it and breaking it in the Midwest: Continental assembly and rifting from modeling of EarthScope magnetotelluric data Making it and breaking it in the Midwest: Continental assembly and rifting from modeling of EarthScope magnetotelluric data
A three-dimensional lithospheric-scale resistivity model of the North American mid-continent has been estimated based upon EarthScope magnetotelluric data. Details of the resistivity model are discussed in relation to lithospheric sutures, defined primarily from aeromagnetic and geochronologic data, which record the southward growth of the Laurentian margin in the Proterozoic. The...
Authors
Paul Bedrosian
Mapping the 3-D extent of the Northern Lobe of the Bushveld layered mafic intrusion from geophysical data Mapping the 3-D extent of the Northern Lobe of the Bushveld layered mafic intrusion from geophysical data
Geophysical models image the 3D geometry of the mafic portion of the Bushveld Complex north of the Thabazimbi-Murchison Lineament (TML), critical for understanding the origin of the world's largest layered mafic intrusion and platinum group element deposits. The combination of the gravity and magnetic data with recent seismic, MT, borehole and rock property measurements powerfully...
Authors
Carol Finn, Paul Bedrosian, Janine Cole, Tshepo Khoza, Susan Webb
Robust estimates of environmental effects on population vital rates: an integrated capture–recapture model of seasonal brook trout growth, survival and movement in a stream network Robust estimates of environmental effects on population vital rates: an integrated capture–recapture model of seasonal brook trout growth, survival and movement in a stream network
Modelling the effects of environmental change on populations is a key challenge for ecologists, particularly as the pace of change increases. Currently, modelling efforts are limited by difficulties in establishing robust relationships between environmental drivers and population responses.We developed an integrated capture–recapture state-space model to estimate the effects of two key
Authors
Benjamin H. Letcher, Paul Schueller, Ronald Bassar, Keith Nislow, Jason Coombs, Krzysztof Sakrejda, Michael Morrissey, Douglas Sigourney, Andrew Whiteley, Matthew J. O'Donnell, Todd Dubreuil
The critical role of islands for waterbird breeding and foraging habitat in managed ponds of the South Bay Salt Pond Restoration Project, South San Francisco Bay, California The critical role of islands for waterbird breeding and foraging habitat in managed ponds of the South Bay Salt Pond Restoration Project, South San Francisco Bay, California
The South Bay Salt Pond Restoration Project aims to restore 50–90 percent of former salt evaporation ponds into tidal marsh in South San Francisco Bay, California. However, large numbers of waterbirds use these ponds annually as nesting and foraging habitat. Islands within ponds are particularly important habitat for nesting, foraging, and roosting waterbirds. To maintain current...
Authors
Joshua T. Ackerman, C. Hartman, Mark Herzog, Lacy Smith, Stacy Moskal, Susan De La Cruz, Julie Yee, John Takekawa