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...
Planetary dune workshop expands to include subaqueous processes
Timothy N. Titus, Gerald Bryant, David M. Rubin
2018, Eos, Earth and Space Science News (99)
Dune-like structures appear in the depths of Earth’s oceans, across its landscapes, and in the extremities of the solar system beyond. Dunes rise up under the thick dense atmosphere of Venus, and they have been found under the almost unimaginably ephemeral atmosphere of a comet....
Seventy years of stream‐fish collections reveal invasions and native range contractions in an Appalachian (USA) watershed
Joseph D. Buckwalter, Emmanuel A. Frimpong, Paul L. Angermeier, Jacob N. Barney
2018, Diversity and Distributions (24) 219-232
AimKnowledge of expanding and contracting ranges is critical for monitoring invasions and assessing conservation status, yet reliable data on distributional trends are lacking for most freshwater species. We developed a quantitative technique to detect the sign (expansion or contraction) and functional form of range‐size changes for freshwater...
Estimating wetland connectivity to streams in the Prairie Pothole Region: An isotopic and remote sensing approach
J. R. Brooks, David M. Mushet, Melanie K. Vanderhoof, Scott G. Leibowitz, J. R. Christensen, Brian Neff, Donald O. Rosenberry, W. D. Rugh, L.C. Alexander
2018, Water Resources Research (54) 955-977
Understanding hydrologic connectivity between wetlands and perennial streams is critical to understanding the reliance of stream flow on inputs from wetlands. We used the isotopic evaporation signal in water and remote sensing to examine wetland‐stream hydrologic connectivity within the Pipestem Creek watershed, North Dakota, a watershed dominated by prairie‐pothole wetlands....
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...
Groundwater connectivity of upland-embedded wetlands in the Prairie Pothole Region
Brian Neff, Donald O. Rosenberry
2018, Wetlands (38) 51-63
Groundwater connections from upland-embedded wetlands to downstream waterbodies remain poorly understood. In principle, water from upland-embedded wetlands situated high in a landscape should flow via groundwater to waterbodies situated lower in the landscape. However, the degree of groundwater connectivity varies across systems due to factors such as geologic setting, hydrologic...
Strengthening links between waterfowl research and management
Anthony J. Roberts, John M. Eadie, David Howerter, Fred A. Johnson, James D. Nichols, Michael C. Runge, Mark P. Vrtiska, Byron K. Williams
2018, Journal of Wildlife Management (82) 260-265
Waterfowl monitoring, research, regulation, and adaptive planning are leading the way in supporting science-informed wildlife management. However, increasing societal demands on natural resources have created a greater need for adaptable and successful linkages between waterfowl science and management. We presented a special session at the 2016 North American Duck Symposium,...
Assessing intrinsic and specific vulnerability models ability to indicate groundwater vulnerability to groups of similar pesticides: A comparative study
Steven H. Douglas, Barnali Dixon, Dale W. Griffin
2018, Physical Geography (39) 487-505
With continued population growth and increasing use of fresh groundwater resources, protection of this valuable resource is critical. A cost effective means to assess risk of groundwater contamination potential will provide a useful tool to protect these resources. Integrating geospatial methods offers a means to quantify the risk of contaminant...
Tidal extension and sea-level rise: recommendations for a research agenda
Scott H. Ensign, Gregory E. Noe
2018, Frontiers in Ecology and the Environment (16) 37-43
Sea-level rise is pushing freshwater tides upstream into formerly non-tidal rivers. This tidal extension may increase the area of tidal freshwater ecosystems and offset loss of ecosystem functions due to salinization downstream. Without considering how gains in ecosystem functions could offset losses, landscape-scale assessments of ecosystem functions may be biased...
Resource competition model predicts zonation and increasing nutrient use efficiency along a wetland salinity gradient
Donald Schoolmaster, Camille L. Stagg
2018, Ecology (99) 670-680
A trade-off between competitive ability and stress tolerance has been hypothesized and empirically supported to explain the zonation of species across stress gradients for a number of systems. Since stress often reduces plant productivity, one might expect a pattern of decreasing productivity across the zones of the stress gradient. However,...
Using expert knowledge to incorporate uncertainty in cause-of-death assignments for modeling of cause-specific mortality
Daniel P. Walsh, Andrew S. Norton, Daniel J. Storm, Timothy R. Van Deelen, Dennis M. Heisy
2018, Ecology and Evolution (8) 509-520
Implicit and explicit use of expert knowledge to inform ecological analyses is becoming increasingly common because it often represents the sole source of information in many circumstances. Thus, there is a need to develop statistical methods that explicitly incorporate expert knowledge, and can successfully leverage this information while properly accounting...
Attributes of seasonal home range influence choice of migratory strategy in white-tailed deer
Charles R. Henderson Jr., Michael S. Mitchell, Woodrow L. Myers, Paul M. Lukacs, Gerald P. Nelson
2018, Journal of Mammalogy (99) 89-96
Partial migration is a common life-history strategy among ungulates living in seasonal environments. The decision to migrate or remain on a seasonal range may be influenced strongly by access to high-quality habitat. We evaluated the influence of access to winter habitat of high quality on the probability of a female...
“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...
Response to Lisovski et al.
Henry M. Streby, Gunnar R. Kramer, Sean M. Peterson, Justin A. Lehman, David A. Buehler, David E. Andersen
2018, Current Biology (28) R101-R102
Lisovski et al. [1] describe the widely recognized limitations of light-level geolocator data for identifying short-distance latitudinal movements, recommend that caution be used when interpreting such data, intimated that we did not use such caution and argued that environmental shading likely explained the Golden-winged Warbler (Vermivora chrysoptera) movements described in our 2015...
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...
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...
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...
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...
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),...
Leaching and sorption of neonicotinoid insecticides and fungicides from seed coatings
Kelly L. Smalling, Michelle L. Hladik, Corey Sanders, Kathryn Kuivila
2018, Journal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes (53) 176-183
Seed coatings are a treatment used on a variety of crops to improve production and offer protection against pests and fungal outbreaks. The leaching of the active ingredients associated with the seed coatings and the sorption to soil was evaluated under laboratory conditions using commercially available corn and soybean seeds...
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....
