Guidance for assessing interregional ecoystem service flows
Thomas Koellner, Aletta Bonn, Sebastian Arnhold, Kenneth J. Bagstad, Dor Friedman, Carlos Guerra, Thomas Kastner, Meidad Kissinger, Janina Kleeman, Christian Kuhlicke, Jianguo Liu, Laura Lopez-Hoffman, Alexandra Marques, Berta Martin-Lopez, Catharina J. E. Schulp, Sarah Wolff, Matthias Schroter
2019, Ecological Indicators (105) 92-106
Ecosystem services (ES) assessments commonly focus on a specific biophysical region or nation and take its geographic borders as the system boundary. Most geographical regions are, however, not closed systems but are open and telecoupled with other regions through ES imports and exports, which are mediated by fluxes of matter,...
Managing the trifecta of disease, climate, and contaminants: Searching for robust choices under multiple sources of uncertainty
Kelly Smalling, Collin Eagles-Smith, Rachel A. Katz, Evan Grant
2019, Biological Conservation (236) 153-161
Wood frogs, like other amphibian species worldwide, are experiencing population declines due to multiple stressors. In the northeastern United States, wood frog declines are thought to result from a reduction in successful metamorphosis in part due to climate change, disease (specifically ranavirus) and contaminant exposure. The presence of multiple stressors...
Seeking shelter from the storm: Conservation and management of imperiled species in a changing climate
Susan Walls, William Barichivich, Jonathan Chandler, Ashley M. Meade, Marysa Milinichik, Katherine O'Donnell, Megan E. Owens, Terry Peacock, Joseph Reinman, Rebecca C. Watling, Olivia E. Wetsch
2019, Ecology and Evolution (9) 7122-7133
Climate change is anticipated to exacerbate the extinction risk of species whose persistence is already compromised by habitat loss, invasive species, disease, or other stressors. In coastal areas of the southeastern United States (USA), many imperiled vertebrates are vulnerable to hurricanes, which climate models predict to become more severe in...
Methane and nitrous oxide temporal and spatial variability in two midwestern USA streams containing high nitrate concentrations
Richard L. Smith, J.K. Bohlke
2019, Science of the Total Environment (685) 574-588
Concentrations and emissions of greenhouse gases CO2, CH4, and N2O commonly are examined individually in aquatic environments in which each is expected to be relatively important; however, their co-occurrence and dynamic interactions in fluvial settings could provide important information about their controlling biogeochemical processes and potential contributions to global climate...
Variability in shelf sedimentation in response to fluvial sediment supply and coastal erosion over the past 1,000 years in Monterey Bay, CA, United States
Joseph Carlin, Jason A. Addison, Amy Wagner, Valerie Evelyn Schwartz, Jamie Hayward, Victoria Severin
2019, Frontiers in Earth Science (7)
Continental shelf environments are uniquely situated to capture some of the most dynamic processes on Earth including climatic variability and anthropogenic modifications to coastal systems. Understanding how these processes have affected sediment delivery and accumulation on the shelf in the past may provide insight into potential changes in...
Early genetic outcomes of American black bear reintroductions in the Central Appalachians, USA
Sean M. Murphy, John T. Hast, Ben C. Augustine, David W. Weisrock, Joseph D. Clark, David. M Kocka, Christopher W. Ryan, Jaime L. Sajecki, John J. Cox
2019, Ursus (29) 110-133
Habitat loss and overexploitation extirpated American black bears (Ursus americanus) from most of the Central Appalachians, USA, by the early twentieth century. To attempt to restore bears to the southwestern portion of this region, 2 reintroductions that used small founder groups (n = 27 and 55 bears), but different release...
The influence of body size, condition, and age on recruitment of four Alaskan brown bear populations
Grant V. Hilderbrand, David Gustine, Kyle Joly, Buck Mangipane, William Leacock, Matthew Cameron, Mathew Sorum, Lindsey Mangipane, Joy Erlenbach
2019, Ursus (2) 111-118
Recruitment of brown bear (Ursus arctos) offspring into a population is the product of initial cub production and subsequent survival and is a critical component of overall population status and trend. We investigated the relationship between maternal body size, body condition, and age (as a surrogate for gained experience) and...
Characterizing seismogenic fault structures in Oklahoma using a relocated template matched catalog
Robert Skoumal, Joern Kaven, Jake Water
2019, Seismological Research Letters (90) 1535-1543
Oklahoma is one of the most seismically active places in the United States as a result of industry activities. In order to characterize the fault networks responsible for these earthquakes in Oklahoma, we relocated a large-scale template matching catalog between 2010-2016 using the GrowClust algorithm . This relocated catalog is...
Impacts of saltwater intrusion on wetland prey production and composition in a historically freshwater marsh
Stephanie Romanach, James M. Beerens, Brett Patton, Julia P. Chapman, Matt Hanson
2019, Estuaries and Coasts (42) 1600-1611
Sea level rise is a fundamental driver of ecosystem change and has the potential to shift the spatial distributions of habitats more rapidly than species can adapt. Rapid sea level rise and associated saltwater intrusion have negative impacts on coastal environments, including loss of habitat for species such as sea...
Simulation of groundwater flow in the Brunswick Area, Georgia, for 2004 and 2015, and selected groundwater-management scenarios
Gregory S. Cherry
2019, Scientific Investigations Report 2019-5035
The Upper Floridan aquifer (UFA) is the principal water source for industrial and public supply in Glynn County, Georgia. Wells in active pumping centers that tap the UFA for industries near the city of Brunswick have created an upward hydraulic-head gradient in the Floridan aquifer system, which has allowed high...
Simulation of the regional groundwater-flow system in the St. Louis River basin, Minnesota
Megan J. Haserodt, Randall J. Hunt, Timothy K. Cowdery, Andrew T. Leaf, Anna C. Baker
2019, Scientific Investigations Report 2019-5033
The St. Louis River Basin (SLRB) covers 3,600 square miles in northeastern Minnesota, with headwaters in the Mesabi Range and extensive wetlands and lakes throughout the basin. To better understand the regional groundwater system in the SLRB, a two-dimensional, steady-state groundwater-flow model of the SLRB was developed by the U.S....
Spatially explicit network analysis reveals multi-species annual cycle movement patterns of sea ducks
Juliet S. Lamb, Peter WC Paton, Jason E. Osenkowski, Shannon S. Badzinski, Alicia Berlin, Timothy D. Bowman, Chris Dwyer, Luke Fara, Scott G. Gilliland, Kevin P. Kenow, Christine Lepage, Mark L. Mallory, Glenn Olsen, Matthew Perry, Scott A. Petrie, Jean-Pierre L. Savard, Lucas Savoy, Michael L. Schummer, Caleb S. Spiegel, Scott R. McWilliams
2019, Ecological Applications (29)
Conservation of long-distance migratory species poses unique challenges. Migratory connectivity—that is, the extent to which groupings of individuals at breeding sites are maintained in wintering areas—is frequently used to evaluate population structure and assess use of key habitat areas. However, for species with complex or variable annual-cycle movements, this traditional...
Return flows from beaver ponds enhance floodplain-to-river metals exchange in alluvial mountain catchments
Martin Briggs, Cheng-Hui Wang, Frederick Day-Lewis, Kenneth H. Williams, Wenming Dong, John Lane
2019, Science of the Total Environment (685) 357-369
River to floodplain hydrologic connectivity is strongly enhanced by beaver- (Castor canadensis) engineered channel water diversions. The hydroecological impacts are wide ranging and generally positive, however, the hydrogeochemical characteristics of beaver-induced flowpaths have not been thoroughly examined. Using a suite of complementary ground- and drone-based heat tracing and remote sensing...
Protected areas lacking for many common fluvial fishes of the conterminous USA
Arthur R. Cooper, Yin-Phang Tsang, Dana M. Infante, Wesley M. Daniel, Alexa McKerrow, Daniel J. Wieferich
2019, Diversity and Distributions (25) 1289-1303
AimTo assess the effectiveness of protected areas in two catchment scales (local and network) in conserving regionally common fluvial fishes using modelled species distributions.LocationConterminous United States.MethodsA total of 150 species were selected that were geographically widespread, abundant, non‐habitat specialists and native...
Mortality of Tufted puffins (Fratercula cirrhata) and other alcids during an unusual mortality event in the eastern Bering Sea
Timothy Jones, Laura M. Divine, Heather Renner, Susan Knowles, Kathi A. Lefebvre, Hillary K. Burgess, Charlie Wright, Julia K. Parrish
2019, PLoS ONE (14)
Mass mortality events are increasing in frequency and magnitude, potentially linked with ongoing climate change. In October 2016 through January 2017, St. Paul Island situated at the shelf-edge of the Bering Sea, Alaska, experienced a mortality event of alcids (family: Alcidae), with over 350 carcasses recovered. Almost three-quarters of the...
Survival cost to relocation does not reduce population self‐sustainability in an amphibian
Hugo Cayuela, Lilly Gillet, Arnaud Laudelout, Aurelien Besnard, Eric Bonnaire, Pauline Levionnois, Erin L. Muths, Marc Dufrene, Thierry Kinet
2019, Ecological Applications (29)
Relocations are increasingly popular among wildlife managers despite often low rates of relocation success in vertebrates. In this context, understanding the influence of extrinsic (e.g., relocation design, habitat characteristics) and intrinsic factors (e.g., age and sex) on demographic parameters, such as survival, that regulate the dynamics of relocated populations is...
Groundwater quality in shallow aquifers in the western Mojave Desert, California
Krishangi D. Groover, Dara A. Goldrath
2019, Fact Sheet 2019-3033
Groundwater provides more than 40 percent of California’s drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project (PBP) of the GAMA Program provides a comprehensive assessment of the State’s groundwater quality and increases public access...
Bunchgrass root abundances and their relationship to resistance and resilience of a burned shrub-steppe landscape
Matthew J. Germino, Matthew Fisk, Cara Applestein
2019, Rangeland Ecology and Management (72) 782-790
Invasion of exotic annual grasses (EAG) and increased wildfire have motivated an emphasis on managing rangeland plant communities for resistance to invasion and resilience to disturbances. These traits are provided primarily by perennial bunchgrasses in rangelands such as shrub steppe, and specifically but also hypothetically, the abundances and functioning...
Growing pains of crowdsourced stream stage monitoring using mobile phones: The development of CrowdHydrology
Christopher Lowry, Michael N. Fienen, Damon M. Hall, Kristine Stepenuck
2019, Frontiers in Earth Science (7)
Citizen science-based approaches to monitor the natural environment tend to be bimodal in maturity. Older and established programs such as the Audubon’s Christmas bird count and Community Collaborative Rain, Hail, and Snow Network (CoCoRaHS) have thousands of participants across decades of observations, while less mature citizen science projects have shorter...
Explosive summit collapse of Kīlauea Volcano in 1924 preceded by a decade of crustal contamination and anomalous Pb isotope ratios
Aaron Pietruszka, Daniel E. Heaton, Michael O Garcia, Jared P. Marske
2019, Geochimica et Cosmochimica Acta (258) 120-137
A geochemical time-series analysis of lavas from frequently active basaltic volcanoes has the potential to reveal the enigmatic mantle controls on volcanic behavior and hazards. In May 1924, the century-long lava lake within Halemaʻumaʻu pit crater at the summit of Kīlauea...
Conservation genomics in the sagebrush sea: Population divergence, demographic history, and local adaptation in sage-grouse (Centrocercus spp.)
Kevin P Oh, Cameron L. Aldridge, Jennifer S. Forbey, Carolyn Dadabay, Sara J. Oyler-McCance
2019, Genome Biology and Evolution (11) 2023-2034
Sage-grouse are two closely related iconic species of the North American West, with historically broad distributions across sagebrush-steppe habitat. Both species are dietary specialists on sagebrush during winter, with presumed adaptations to tolerate the high concentrations of toxic secondary metabolites that function as plant chemical defenses. Marked range contraction and...
Evidence for frequent, large tsunamis spanning locked and creeping parts of the Aleutian megathrust
Robert C. Witter, Richard W. Briggs, Simon E. Engelhart, Guy R. Gelfenbaum, Richard D Koehler, Alan R. Nelson, SeanPaul La Selle, Reide Corbett, Kristi L. Wallace
2019, Geological Society of America Bulletin (131) 707-729
At the eastern end of the 1957 Andreanof Islands magnitude-8.6 earthquake rupture, Driftwood Bay (Umnak Island) and Stardust Bay (Sedanka Island) lie along presently locked and creeping parts of the Aleutian megathrust, respectively, based on satellite geodesy onshore. Both bays, located 200-km apart, face the Aleutian trench and harbor coastal...
Ross Ice Shelf response to climate driven by the tectonic imprint on seafloor bathymetry
K J Tinto, L Padman, C S Siddoway, M.R. Springer, H.A. Fricker, I. Das, F. Caratori Tontini, D.F. Porter, N.P. Frearson, S. J. Howard, M.R. Siegfried, C. Mosbeux, M.K. Becker, C. Bertinato, A. Boghosian, N. Brady, Bethany L. Burton, W. Chu, S.I. Cordero, T. Dhakal, L. Dong, C.D. Gustafson, S. Keeshin, C. Locke, A. Lockett, G. O'Brien, J.J. Spergel, S.E. Starke, M. Tankersley, M. Wearing, R. E. Bell
2019, Nature Geoscience (12) 441-449
Ocean melting has thinned Antarctica's ice shelves at an increasing rate over the past two decades, leading to loss of grounded ice. The Ross Ice Shelf is currently close to steady state but geological records indicate that it can disintegrate rapidly, which would accelerate grounded ice loss from catchments...
Application of a towed time-domain electromagnetic (tTEM) imaging system in Jamestown, North Dakota
Carole D. Johnson, Joshua Valder, Eric A. White, Pradip Kumar Maurya, David Hisz, John W. Lane Jr.
2019, Conference Paper, Symposium on the application of geophysics to engineering and environmental problems proceedings
Time-Domain Electromagnetic (EM) methods have been used for decades in support of groundwater investigations. A new towed Time-Domain EM system called “tTEM”, designed by Aarhus University, is being tested and evaluated under a collaborative research agreement with the U.S. Geological Survey (USGS). The tTEM system is rapid and efficient, providing...
Negative frequency-dependent foraging behaviour in a generalist herbivore (Alces alces) and its stabilizing influence on food-web dynamics
Sarah R. Hoy, John A. Vucetich, Rongsong Liu, Don DeAngelis, Rolf O. Peterson, Leah M. Vucetich, John J. Henderson
2019, Journal of Applied Ecology (88) 1291-1304
1. Resource selection is widely appreciated to be context‐dependent and shaped by both biological and abiotic factors. However, few studies have empirically assessed the extent to which selective foraging behaviour is dynamic and varies in response to environmental conditions for free‐ranging animal populations. 2. Here, we assessed the extent that forage...
