Nonbreeding home‐range size and survival of lesser prairie‐chickens
Samantha G. Robinson, David A. Haukos, Reid T. Plumb, Joseph M. Lautenbach, Daniel S. Sullins, John D. Kraft, Jonathan D. Lautenbach, Christian A. Hagen, James C. Pitman
2018, Journal of Wildlife Management (82) 413-423
The lesser prairie‐chicken (Tympanuchus pallidicinctus), a species of conservation concern with uncertain regulatory status, has experienced population declines over the past century. Most research on lesser prairie‐chickens has focused on the breeding season, with little research conducted during the nonbreeding season, a period that exerts a strong influence on demography...
On factors influencing air-water gas exchange in emergent wetlands
David T. Ho, Victor C. Engel, Sara Ferron, Benjamin Hickman, Jay Choi, Judson W. Harvey
2018, Journal of Geophysical Research G: Biogeosciences (123) 178-192
Knowledge of gas exchange in wetlands is important in order to determine fluxes of climatically and biogeochemically important trace gases and to conduct mass balances for metabolism studies. Very few studies have been conducted to quantify gas transfer velocities in wetlands, and many wind speed/gas exchange parameterizations used in oceanographic...
Use of real-time dust monitoring and surface condition to evaluate success of unpaved road treatments
Bethany K. Kunz, Nicholas S. Green, Janice L. Albers, Mark L. Wildhaber, Edward E. Little
2018, Conference Paper, Transportation Research Board Annual Meeting
No abstract available....
Perissodactyla diet
Kathryn A. Schoenecker
2018, Book chapter, Encyclopedia of animal cognition and behavior
Perissodactyla (Schoch 1989) includes tapirs, rhinoceros, wild asses, horses, and zebras. It is the order of hoofed mammals referred to as “odd-toed ungulates” because its members have one to three weight-bearing toes and walk on hoofs or “ungules.” They are herbivores that are specialized to exploit grasslands and brushy habitat...
Preparing for an uncertain future: Migrating shorebird response to past climatic fluctuations in the Prairie Potholes
Valerie A. Steen, Susan K. Skagen, Barry R. Noon
2018, Ecosphere (9) 1-12
The Prairie Pothole Region, situated in the northern Great Plains, provides important stopover habitat for migratory shorebirds. During spring migration in the U.S. Prairie Potholes, 7.3 million shorebirds refuel in the region's myriad small, freshwater wetlands. Shorebirds use mudflats, shorelines, and ephemeral wetlands that are far more abundant in wet years...
“Naturalness” in designated Wilderness: Long-term changes in non-native plant dynamics on campsites, Boundary Waters, Minnesota
Holly Eagleston, Jeffrey L. Marion
2018, Forest Science (64) 50-56
Wilderness areas in the United States are preserved for their untrammeled naturalness and opportunities for unconfined recreation. The Boundary Waters Canoe Area Wilderness has these qualities, but long-term recreation visitation pressures on campsites can cause significant ecological changes. This article explores changes on campsites, specifically examining non-native plant ecology over...
Hematological indices of injury to lightly oiled birds from the Deepwater Horizon oil spill
Jesse A. Fallon, Eric P. Smith, Nina Schoch, James D. Paruk, Evan A. Adams, David C. Evers, Patrick G.R. Jodice, Christopher Perkins, Shiloh A. Schulte, William A. Hopkins
2018, Environmental Toxicology and Chemistry (37) 451-461
Avian mortality events are common following large‐scale oil spills. However, the sublethal effects of oil on birds exposed to light external oiling are not clearly understood. We found that American oystercatchers (area of potential impact n = 42, reference n = 21), black skimmers (area of potential impact n = 121, reference n = 88), brown pelicans (area of potential impact n = 91, reference n = 48),...
Variabilities in probabilistic seismic hazard maps for natural and induced seismicity in the central and eastern United States
S. Mostafa Mousavi, Gregory C. Beroza, Susan M. Hoover
2018, The Leading Edge (37) 141a1-141a9
Probabilistic seismic hazard analysis (PSHA) characterizes ground-motion hazard from earthquakes. Typically, the time horizon of a PSHA forecast is long, but in response to induced seismicity related to hydrocarbon development, the USGS developed one-year PSHA models. In this paper, we present a display of the variability in USGS hazard curves...
Vertical self-sorting behavior in juvenile Chinook salmon (Oncorhynchus tshawytscha): evidence for family differences and variation in growth and morphology
Julia R. Unrein, E.J. Billman, Karen M. Cogliati, Rob S. Chitwood, David L. G. Noakes, Carl B. Schreck
2018, Environmental Biology of Fishes (101) 341-353
Life history variation is fundamental to the evolution of Pacific salmon and their persistence under variable conditions. We discovered that Chinook salmon sort themselves into surface- and bottom-oriented groups in tanks within days after exogenous feeding. We hypothesised that this behaviour is correlated with subsequent differences in body morphology and...
Survey of beaver-related restoration practices in rangeland streams of the western USA
David S. Pilliod, Ashley T. Rohde, Susan Charnley, Rachael R Davee, Jason B. Dunham, Hannah Gosnell, Gordon E. Grant, Mark B. Hausner, Justin L. Huntington, Caroline Nash
2018, Environmental Management (61) 58-68
Poor condition of many streams and concerns about future droughts in the arid and semi-arid western USA have motivated novel restoration strategies aimed at accelerating recovery and increasing water resources. Translocation of beavers into formerly occupied habitats, restoration activities encouraging beaver recolonization, and instream structures mimicking the effects of beaver...
Morphological indicators of a mascon beneath Ceres' largest crater, Kerwan
Michael T. Bland, Anton Ermakov, Carol A. Raymond, David A. Williams, Tim J. Bowling, F. Preusker, Ryan S. Park, Simone Marchi, Julie C. Castillo-Rogez, R.R. Fu, Christopher T. Russell
2018, Geophysical Research Letters (45) 1297-1304
Gravity data of Ceres returned by the National Aeronautics and Space Administration's Dawn spacecraft is consistent with a lower density crust of variable thickness overlying a higher density mantle. Crustal thickness variations can affect the long‐term, postimpact modification of impact craters on Ceres. Here we show...
Estimating factors influencing the detection probability of semiaquatic freshwater snails using quadrat survey methods
Elizabeth L. Roesler, Timothy B. Grabowski
2018, Hydrobiologia (808) 153-161
Developing effective monitoring methods for elusive, rare, or patchily distributed species requires extra considerations, such as imperfect detection. Although detection is frequently modeled, the opportunity to assess it empirically is rare, particularly for imperiled species. We used Pecos assiminea (Assiminea pecos), an endangered semiaquatic snail, as a case...
Sirenian life history
Robert K. Bonde
2018, Book chapter, Encyclopedia of marine mammals
Sirenians, including the manatees and dugongs, are large herbivorous mammals that have evolved to an aquatic form since the Eocene epoch. Sirenians have unique adaptations, including dense bone for ballast and a longitudinal hemidiaphragm separating paired lungs (which aid in maintaining a horizontal posture in the water column), species-specific rostral...
Examining fluvial fish range loss with SDMs
Andrew T. Taylor, Monica Papes, James M. Long
2018, Conservation Biology (32) 171-182
Fluvial fishes face increased imperilment from anthropogenic activities, but the specific factors contributing most to range declines are often poorly understood. For example, the range of the fluvial‐specialist shoal bass (Micropterus cataractae) continues to decrease, yet how perceived threats have contributed to range loss is largely unknown. We used species...
Comparison of the chemical composition of dissolved organic matter in three lakes in Minnesota
Xiaoyan Cao, George R. Aiken, Kenna D. Butler, Jingdong Mao, Klaus Schmidt-Rohr
2018, Environmental Science & Technology (52) 1747-1755
New information on the chemical composition of dissolved organic matter (DOM) in three lakes in Minnesota has been gained from spectral editing and two-dimensional nuclear magnetic resonance (NMR) methods, indicating the effects of lake hydrological settings on DOM composition. Williams Lake (WL), Shingobee Lake (SL), and Manganika Lake (ML) had...
Integrating future scenario‐based crop expansion and crop conditions to map switchgrass biofuel potential in eastern Nebraska, USA
Yingxin Gu, Bruce K. Wylie
2018, GCB Bioenergy (10) 76-83
Switchgrass (Panicum virgatum) has been evaluated as one potential source for cellulosic biofuel feedstocks. Planting switchgrass in marginal croplands and waterway buffers can reduce soil erosion, improve water quality, and improve regional ecosystem services (i.e. it serves as a potential carbon sink). In previous studies, we mapped high risk marginal...
Three-dimensional foraging habitat use and niche partitioning in two sympatric seabird species, Phalacrocorax auritus and P. penicillatus
Adam G. Peck-Richardson, Donald E. Lyons, Daniel D. Roby, Daniel A. Cushing, James A. Lerczak
2018, Marine Ecology Progress Series (586) 251-264
Ecological theory predicts that co-existing, morphologically similar species will partition prey resources when faced with resource limitations. We investigated local movements, foraging dive behavior, and foraging habitat selection by breeding adults of 2 closely related cormorant species, double-crested cormorants Phalacrocorax auritus and Brandt’s cormorants P. penicillatus. These species nest sympatrically at East Sand...
Moving in the Anthropocene: Global reductions in terrestrial mammalian movements
Marlee A. Tucker, Katrin Bohning-Gaese, William F. Fagan, John Fryxell, Bram Van Moorter, Susan C Alberts, Abdullahi H. Ali, Andrew M. Allen, Nina Attias, Tal Avgar, Hattie Bartlam-Brooks, Bayarbaatar Buuveibaatar, Jerrold L. Belant, Alessandra Bertassoni, Dean Beyer, Laura Bidner, Floris M. van Beest, Stephen Blake, Niels Blaum, Chloe Bracis, Danielle Brown, P. J. Nico de Bruyn, Francesca Cagnacci, J.M. Calabrese, Constanca Camilo-Alves, Simon Chamaille-Jammes, Andre Chiaradia, Sarah C. Davidson, Todd Dennis, Stephen DeStefano, Duane R. Diefenbach, Iain Douglas-Hamilton, Julian Fennessy, Claudia Fichtel, Wolfgang Fiedler, Christina Fischer, Ilya Fischhoff, Christen H. Fleming, Adam T. Ford, Susanne A. Fritz, Benedikt Gehr, Jacob R. Goheen, Eliezer Gurarie, Mark Hebblewhite, Marco Heurich, A. J. Mark Hewison, Christian Hof, Edward Hurme, Lynne A. Isbell, Rene Janssen, Florian Jeltsch, Petra Kaczensky, Adam Kane, Peter M. Kappeler, Matthew J. Kauffman, Roland Kays, Duncan Kimuyu, Flavia Koch, Bart Kranstauber, Scott LaPoint, Peter Leimgruber, John D. C. Linnell, Pascual Lopez-Lopez, A. Catherine Markham, Jenny Mattisson, Emilia Patricia Medici, Ugo Mellone, E. Merrill, Guilherme de Miranda Mourao, Ronaldo G. Morato, Nicolas Morellet, Thomas A. Morrison, Samuel L. Diaz-Munoz, Atle Mysterud, Dejid Nandintsetseg, Ran Nathan, Aidin Niamir, John Odden, Robert B. O’Hara, Luiz G. R. Oliveira-Santos, Kirk A. Olson, Bruce D. Patterson, Rogerio Cunha de Paula, Luca Pedrotti, Bjorn Reineking, Martin Rimmler, T. L. Rogers, Christer Moe Rolandsen, Christopher S. Rosenberry, Daniel I. Rubenstein, Kamran Safi, Sonia Said, Nir Sapir, Hall Sawyer, Niels Martin Schmidt, Nuria Selva, Agnieszka Sergiel, Enkhtuvshin Shiilegdamba, Joao Paulo Silva, N. Singh, Erling J. Solberg, Orr Spiegel, Olav Strand, S.R. Sundaresan, Wiebke Ullmann, Ulrich Voigt, J. Wall, David W. Wattles, Martin Wikelski, Christopher C. Wilmers, John W. Wilson, George Wittemyer, Filip Zieba, Tomasz Zwijacz-Kozica, Thomas Mueller
2018, Science (359) 466-469
Animal movement is fundamental for ecosystem functioning and species survival, yet the effects of the anthropogenic footprint on animal movements have not been estimated across species. Using a unique GPS-tracking database of 803 individuals across 57 species, we found that movements of mammals in areas with a comparatively high human...
Contaminant-associated health effects in fishes from the Ottawa and Ashtabula Rivers, Ohio
Luke R. Iwanowicz, Vicki S. Blazer, Heather L. Walsh, Cassidy H. Shaw, David S. DeVault, Jo A. Banda
2018, Journal of Great Lakes Research (44) 184-196
The health of resident fishes serves as a biologically relevant barometer of aquatic ecosystem integrity. Here, the health of the Ottawa River and Ashtabula River (both within the Lake Erie Basin) were assessed using morphological and immunological biomarkers in brown bullheads (Ameiurus nebulosus) and largemouth bass (Micropterus salmoides). Biomarker metrics...
Nanometre-sized pores in coal: Variations between coal basins and coal origin
Richard Sakurovs, Lukas Koval, Mihaela Grigore, Anna Sokolava, Leslie F. Ruppert, Yuri B. Melnichenko
2018, International Journal of Coal Geology (186) 126-134
We have used small angle neutron scattering (SANS) to investigate the differences in methane and hexane penetration in pores in bituminous coal samples from the U.S., Canada, South Africa, and China, and maceral concentrates from Australian coals. This work is an extension of previous work that showed consistent differences...
Seismic hazard, risk, and design for South America
Mark D. Petersen, Stephen Harmsen, Kishor S. Jaiswal, Kenneth S. Rukstales, Nico Luco, Kathleen Haller, Charles Mueller, Allison Shumway
2018, Bulletin of the Seismological Society of America (108) 781-800
We calculate seismic hazard, risk, and design criteria across South America using the latest data, models, and methods to support public officials, scientists, and engineers in earthquake risk mitigation efforts. Updated continental scale seismic hazard models are based on a new seismicity catalog, seismicity rate models, evaluation of earthquake sizes,...
Long‐term trends in fall age ratios of black brant
David H. Ward, Courtney L. Amundson, Robert A. Stehn, Christian P. Dau
2018, Journal of Wildlife Management (82) 362-373
Accurate estimates of the age composition of populations can inform past reproductive success and future population trajectories. We examined fall age ratios (juveniles:total birds) of black brant (Branta bernicla nigricans; brant) staging at Izembek National Wildlife Refuge near the tip of the Alaska Peninsula, southwest Alaska, USA, 1963 to 2015....
Pronounced centennial-scale Atlantic Ocean climate variability correlated with Western Hemisphere hydroclimate
Kaustubh Thirumalai, Terrence M. Quinn, Yuko Okumura, Julie N. Richey, Judson W. Partin, Richard Z. Poore, Eduardo Moreno-Chamarro
2018, Nature Communications (9) 1-11
Surface-ocean circulation in the northern Atlantic Ocean influences Northern Hemisphere climate. Century-scale circulation variability in the Atlantic Ocean, however, is poorly constrained due to insufficiently-resolved paleoceanographic records. Here we present a replicated reconstruction of sea-surface temperature and salinity from a site sensitive to North Atlantic circulation in the Gulf of...
Testing earthquake links in Mexico from 1978 up to the 2017 M=8.1 Chiapas and M=7.1 Puebla shocks
Margarita Segou, Thomas E. Parsons
2018, Geophysical Research Letters (45) 708-714
The M = 8.1 Chiapas and the M = 7.1 Puebla earthquakes occurred in the bending part of the subducting Cocos plate 11 days and ~600 km apart, a range that puts them well outside the typical aftershock zone. We find this to be a relatively common occurrence in Mexico, with 14% of M > 7.0 earthquakes since 1900 striking more...
A global audit of the status and trends of Arctic and Northern Hemisphere goose populations
Joel A. Schmutz
Anthony D. Fox, James O. Leafloor, editor(s)
2018, Report
This report attempts to review the abundance, status and distribution of natural wild goose populations in the northern hemisphere. The report comprises three parts that 1) summarise key findings from the study and the methodology and analysis applied; 2) contain the individual accounts for each of the 68 populations included...
