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Adult and hatch-year survival and fidelity of Piping Plovers Charadrius melodus in the lower Platte River system, Nebraska, USA Adult and hatch-year survival and fidelity of Piping Plovers Charadrius melodus in the lower Platte River system, Nebraska, USA
Knowledge of vital rates informs the conservation and management of threatened and endangered species. In the northern Great Plains, USA, the federally threatened Piping Plover Charadrius melodus uses a variety of nesting habitats including natural river sandbars and human-created sites in the lower Platte River system, Nebraska. In this area, off-river sandpit sites (i.e., active sand...
Authors
Elsa M. Forsberg, Larkin A. Powell, Rose J. Swift, Joel G. Jorgensen, Mark P. Vrtiska
Geochemistry of quartz and fluid inclusions associated with gold, tungsten, and antimony in the Stibnite-Yellow Pine district, Idaho Geochemistry of quartz and fluid inclusions associated with gold, tungsten, and antimony in the Stibnite-Yellow Pine district, Idaho
Deposits in the historic Stibnite-Yellow Pine district in east-central Idaho were mined for Ag, Au, Hg, Sb, and W. Ore is hosted in breccia and fault zones along NE-striking faults that transect the Atlanta lobe of the Late Cretaceous Idaho batholith and metamorphosed Neoproterozoic to lower Paleozoic rocks. Geochronological studies have delineated five superimposed and zoned...
Authors
Erin E. Marsh, Mitchell M. Bennett, Albert H. Hofstra, Heather A. Lowers, David T. Adams, Andrew G. Hunt
Using advanced machine learning to evaluate the spatial and temporal patterns of human–bear interactions in Maryland, USA Using advanced machine learning to evaluate the spatial and temporal patterns of human–bear interactions in Maryland, USA
American black bears (Ursus americanus) are highly adaptable to human-dominated areas, which can lead to interactions with humans. Managing these interactions is a priority for many wildlife agencies in North America. Climate-induced shortages in natural food can exacerbate human–bear interactions, as bears are driven to seek alternative food sources in human-dominated areas. However...
Authors
Katherine A. Kurth, Jonathan K. Trudeau
Comparison of methods for estimating wild turkey poult survival Comparison of methods for estimating wild turkey poult survival
Eastern wild turkey (Meleagris gallopavo silvestris) population growth is driven by variation in reproduction, and poult survival is a crucial vital rate. Traditional poult survival monitoring uses flush counts of radio-tagged females, but brood flocking (when broods and females merge into larger flocks) and mark retention are potential problems with this method and can produce biased...
Authors
Joseph O. Quehl, Lindsey M. Phillips, Vincent A. Johnson, Joseph D. Clark, Craig A. Harper, David A. Buehler
A framework for analyzing wild turkey summer sighting data. A framework for analyzing wild turkey summer sighting data.
Wildlife agencies collect data on productivity (e.g., proportion of hens with poults and number of poults per hen) of wild turkey (Meleagris gallopavo) to monitor population status and trends. However, sampling protocols to collect productivity data rely on opportunistic observations reported by wildlife agency personnel and the public and have changed over time and differed among...
Authors
Duane R. Diefenbach, Frances E. Buderman, Mary Jo Casalena, Michael Dye, Robert J. Gates, Laura Christine Gigliotti, C. Robert Long, Katherine Martin, Michael Muthersbaugh, Michael L. Peters, James Sloan, Joshua Stiller, Mark Wiley
Predicted fish vulnerability to stream drying in the western U.S.A. Predicted fish vulnerability to stream drying in the western U.S.A.
The frequency, magnitude and extent of stream drying is increasing due to climate change and human water demand. Fish vulnerability to increased stream drying is a combination of sensitivity (innate tolerance to low streamflow) and exposure to stream drying. To understand fish tolerance to low flow and susceptibility to decline under changing streamflow conditions, we estimated species...
Authors
Elizabeth A. Rieger, Niall G. Clancy, Ryan R. McShane, Roy Sando, Annika W. Walters
The Hawaiian Volcanoes Supersite: Open data for the benefit of science and society The Hawaiian Volcanoes Supersite: Open data for the benefit of science and society
The Hawaiian Volcanoes Supersite was established in 2008 with the goal of making large amounts of volcano monitoring data, especially satellite measurements, freely available at a site of international interest, scientific importance, and impactful natural hazards. The location was chosen because of the long history of volcanological research and innovation on the Island of Hawaiʻi, as...
Authors
Michael P. Poland, Stefano Salvi, Falk Amelung, Marco Bagnardi, Tyler Grant Paladino, Ingrid A. Johanson, Megan McLay
Sentinel-2 based estimates of rangeland fractional cover and canopy gap class for the western United States Sentinel-2 based estimates of rangeland fractional cover and canopy gap class for the western United States
Rangelands are extensive ecosystems, providing important ecosystem services while undergoing continuous change. As a result, improved monitoring technologies can help better characterize vegetation change. Satellite remote sensing has proven effective in this regard, tracking vegetation dynamics at broad and fine scales. We leveraged the spatial, spectral, and temporal resolution of...
Authors
Brady W. Allred, Sarah E. McCord, Timothy J. Assal, Brandon T. Bestelmeyer, Chad S. Boyd, Alexander C. Brooks, Samantha M. Cady, Michael C. Duniway, Samuel D. Fuhlendorf, Shane A. Green, Georgia R. Harrison, Eric R. Jensen, Emily J. Kachergis, Anna C. Knight, Chloe M. Mattilio, Brian A. Mealor, David E. Naugle, Dylan O’Leary, Peter J. Olsoy, Erika S. Peirce, Jason R. Reinhardt, Robert K. Shriver, Joseph T. Smith, Jason D. Tack, Ashley M. Tanner, Evan P. Tanner, Dirac Twidwell, Nicholas P. Webb, Scott L. Morford
Disentangling geomorphic equifinality in sediment and hydrologic connectivity through the analyses of landscape drivers of hysteresis Disentangling geomorphic equifinality in sediment and hydrologic connectivity through the analyses of landscape drivers of hysteresis
Sources, transport mechanisms and pathways of fine sediment in river systems are dependent on a multitude of climatic, geomorphic and anthropogenic factors, resulting in geomorphic equifinality, in which it is difficult to parse how different landscape processes affect sediment transport across different spatiotemporal scales. The objectives of this study are to 1) provide a conceptual...
Authors
Jong Cho, J. William Lund, Grady Ball, Jeb E. Brown, Allen C. Gellis, Laura N. Gurley, Scott Douglas Hamshaw, Jeffrey Stephen Kwang, Andrew Roy Laws, Gregory B. Noe, Gretchen P. Oelsner, Francis Parchaso, Cara L. Peterman-Phipps, Katherine Skalak, Nicholas A. Sutfin
Interspecific interactions moderate direct effects of vegetation change resulting from prescribed fires Interspecific interactions moderate direct effects of vegetation change resulting from prescribed fires
Savannas depend on frequent, low-intensity fires that shape animal and plant communities. These fires alter animal populations, movement, and habitat use. Here, we report on how fires in a longleaf pine (Pinus palustris) savanna affected small mammal microhabitat use via changes in competition and predation. We monitored small mammal populations and vegetation subjected to biennial...
Authors
Varsha Shastry, L. Mike Conner, Gail Morris, J. Andrew Royle, Lora Smith, Dana Morin
Rare milkvetch (Astragalus) persistence at a utility-scale solar energy facility in the Mojave Desert Rare milkvetch (Astragalus) persistence at a utility-scale solar energy facility in the Mojave Desert
Utility-scale solar energy (USSE) development is driving the projected growth in global renewable energy capacity but comes with environmental tradeoffs. New, alternative construction methods are promoted to minimize impacts to soils, vegetation, and hydrology; however, the disturbance created by these methods requires further investigation. We evaluated the population of a rare annual...
Authors
Tiffany J. Pereira, Claire C. Karban, Lara A. Kobelt, Seth M. Munson
The effects of carnivory and herbivory on the energy balance of Arctic grizzly bears The effects of carnivory and herbivory on the energy balance of Arctic grizzly bears
Omnivores often face tradeoffs between selecting for spatially dispersed energy-dense vertebrate prey versus densely distributed herbivorous resources that have limited energetic value per unit intake. Arctic grizzly bears (Ursus arctos) are large omnivores within a resource-limited ecosystem that are known to exhibit smaller body masses and occur at lower densities than grizzly bears in...
Authors
Anthony M. Pagano, Karyn D. Rode, Kerry L. Nicholson, William B. Leacock, Craig A. Stricker, Charles T. Robbins