Traveling to thermal refuges during stressful temperatures leads to foraging constraints in a central-place forager
Catherine G. Haase, Robert J. Fletcher Jr., Daniel H. Slone, James P. Reid, Susan M. Butler
2020, Journal of Mammalogy (101) 271-280
Central-place foragers can be constrained by the distance between habitats. When an organism relies on a central place for thermal refuge, the distance to food resources can potentially constrain foraging behavior. We investigated the effect of distance between thermal refuges and forage patches of the cold-intolerant marine mammal, the Florida...
Species traits predict stream-fish invaders in an Appalachian (U.S.A.) river basin
Joseph D. Buckwalter, Emmanuel A Frimpong, Paul L. Angermeier, Jacob N. Barney
2020, Freshwater Biology (65) 552-564
We compared the influence of biological traits (morphology, physiology, reproduction, and life history), ecological traits (geographic distribution, habitat associations, food habits), and introduction attributes (propagule pressure, human use of a species, residence time) on invasion success of native and introduced stream fishes during the colonisation and spread stages in...
Not all fuel‐reduction treatments degrade biocrusts: Herbicides cause mostly neutral to positive effects on cover of biocrusts
Lea A. Condon, Margaret L Gray
2020, Land Degradation & Development (31) 1727-1734
In response to increasing fire, fuel‐reduction treatments are being used to minimize large fire risk. Although biocrusts are associated with reduced cover of fire‐promoting, invasive grasses, the impact of fuel‐reduction treatments on biocrusts is poorly understood. We use data from a long‐term experiment, the Sagebrush Steppe Treatment Evaluation Project, testing...
A comparison of the Trojan Y Chromosome strategy to harvesting models for eradication of nonnative species
Jingjing Lyu, Pamela J. Schofield, Kristen Reaver, Matthew Beauregard, Rana D. Parshad
2020, Natural Resource Modeling (33)
The Trojan Y Chromosome strategy (TYC) is a promising eradication method for biological control of nonnative species. The strategy works by manipulating the sex ratio of a population through the introduction of supermales that guarantee male offspring. In the current study, we compare the TYC method with a pure harvesting strategy. We...
Chronic and episodic acidification of streams along the Appalachian Trail corridor, eastern United States
Douglas A. Burns, Todd McDonnell, Karen C. Rice, Gregory B. Lawrence, Timothy Sullivan
2020, Hydrological Processes (34) 1498-1513
Acidic atmospheric deposition has adversely affected aquatic ecosystems globally. As emissions and deposition of sulfur (S) and nitrogen (N) have declined in recent decades across North America and Europe, ecosystem recovery is evident in many surface waters. However, persistent chronic and episodic acidification remain important concerns in vulnerable regions. We...
Potential changes to the biology and challenges to the management of invasive sea lamprey Petromyzon marinus in the Laurentian Great Lakes due to climate change
Robert J. Lennox, Gale A. Bravener, Hsien-Yung Lin, Charles P. Madenjian, Andrew M. Muir, Christina K. Remucal, Kelly F. Robinson, Andrew M. Rous, Michael J. Siefkes, Michael P. Wilkie, Daniel P. Zielinski, Steven J. Cooke
2020, Global Change Biology (26) 1118-1137
Control programs are implemented to mitigate the damage caused by invasive species worldwide. In the highly invaded Great Lakes, the climate is expected to become warmer with more extreme weather and variable precipitation, resulting in shorter iced‐over periods and variable tributary flows as well as changes to pH and river...
USGS near-real-time products-and their use-for the 2018 Anchorage earthquake
Eric M. Thompson, Sara K. McBride, Gavin P. Hayes, Kate E. Allstadt, Lisa Wald, David J. Wald, Keith L. Knudsen, Charles Worden, Kristin Marano, Randall W. Jibson, Alex R. Grant
2020, Seismological Research Letters (91) 94-113
In the minutes to hours after a major earthquake, such as the recent 2018 Mw">Mw 7.1 Anchorage event, the U.S. Geological Survey (USGS) produces a suite of interconnected earthquake products that provides diverse information...
Preface to the focus section on the 30 November 2018 Mw 7.1 Anchorage, Alaska earthquake
Natalia Ruppert, Robert C. Witter
2020, Seismological Research Letters (91) 16-18
On 30 November 2018, a magnitude (Mw">Mw) 7.1 intraslab earthquake occurred under the most densely populated area of Alaska, ∼12  km"><span id="MathJax-Span-17"...
Evaluation of ground‐motion models for U.S. Geological Survey seismic hazard models: 2018 Anchorage, Alaska, Mw 7.1 subduction zone earthquake sequence
Daniel E. McNamara, Emily Wolin, Peter M. Powers, Allison Shumway, Morgan P. Moschetti, John Rekoske, Eric M. Thompson, Charles Mueller, Mark D. Petersen
2020, Seismological Research Letters (91) 183-194
Instrumental ground‐motion recordings from the 2018 Anchorage, Alaska (Mw">Mw 7.1), earthquake sequence provide an independent data set allowing us to evaluate the predictive power of ground‐motion models (GMMs) for...
Effects of Cenozoic subduction along the outboard margin of the Northern Cordillera: Derived from e-book on the Northern Cordillera (Alaska and Western Canada) and adjacent marine areas
Warren J. Nokleberg, David Scholl, Thomas K. Bundtzen, David B. Stone
2020, Geosphere (16) 33-61
This article describes the regional effects of Cenozoic subduction along the outboard margin of the Northern Cordillera (Alaska, USA, and Western Canada), and thereby acquaints the reader with several chapters of the e-book Dynamic Geology of the Northern Cordillera (Alaska, Western Canada, and Adjacent Marine Areas). This article and the e-book...
Spatial and temporal behavioral differences between angler-access types
D. S. Kane, Mark A Kaemingk, Christopher J. Chizinski, Kevin L. Pope
2020, Fisheries Research
Recreational angler surveys typically collect information on how anglers access a fishery. Yet, it is unclear how this information is useful for fisheries management and conservation. The objective of this study was to compare behavior (e.g., party size, time fished, and numbers of fish released and harvested) of bank and...
Reverberating effects of resource exchanges in stream–riparian food webs
Scott F. Collins, Colden V. Baxter, Amy M. Marcarelli, Laura Felicetti, Scott Florin, Mark S. Wipfli, Gregg Servheen
2020, Oecologia (192) 179-189
Fluxes of materials or organisms across ecological boundaries, often termed “resource subsidies,” directly affect recipient food webs. Few studies have addressed how such direct responses in one ecosystem may, in turn, influence the fluxes of materials or organisms to other habitats or the potential for feedback relationships to occur among...
Seismic survey design and impacts to maternal polar bear dens
Ryan H. Wilson, George M. Durner
2020, Journal of Wildlife Management (84) 201-212
Large‐scale industrial activities can have negative effects on wildlife populations. Some of these effects, however, could be reduced with effective planning prior to development. The Coastal Plain of the Arctic National Wildlife Refuge, in northeastern Alaska, USA, is an important maternal denning area for polar bears (Ursus maritimus). Recent legislation...
Geochronology of the Oliverian Plutonic Suite and the Ammonoosuc Volcanics in the Bronson Hill arc: Western New Hampshire, USA
Peter M. Valley, Gregory J. Walsh, Arthur J. Merschat, Ryan J. McAleer
2020, Geosphere (16) 229-257
U-Pb zircon geochronology by sensitive high-resolution ion microprobe–reverse geometry (SHRIMP-RG) on 11 plutonic rocks and two volcanic rocks from the Bronson Hill arc in western New Hampshire yielded Early to Late Ordovician ages ranging from 475 to 445 Ma. Ages from Oliverian Plutonic Suite rocks that intrude a largely mafic...
Seasonal variation in environmental and behavioural drivers of annual-cycle habitat selection in a nearshore seabird
J. S. Lamb, Y. G. Satgé, Patrick G.R. Jodice
2020, Diversity and Distributions (26) 254-266
AimConservation of highly mobile species often requires identifying locations or time periods of elevated vulnerability. Since both extrinsic habitat conditions and intrinsic behavioural and energetic requirements contribute to habitat use at the landscape scale, identifying spatial or temporal foci for conservation intervention requires understanding how habitat needs...
Successful molecular detection studies require clear communication among diverse research partners
B. A. Mosher, R. F. Bernard, Jeffrey M. Lorch, D. A. W. Miller, Katherine L. D. Richgels, C. LeAnn White, Evan H. Campbell Grant
2020, Frontiers in Ecology and the Environment (18) 43-51
Molecular detection techniques are powerful tools used in ecological applications ranging from diet analyses to pathogen surveillance. Research partnerships that use these tools often involve collaboration among professionals with expertise in field biology, laboratory techniques, quantitative modeling, wildlife disease, and natural resource management. However, in many cases, each of these...
Dimensional effects of inter-phase mass transfer on attenuation of structurally trapped gaseous carbon dioxide in shallow aquifers
Jakub Solovsky, Radek Fucik, Michelle R. Plampin, Tissa H. Illangasekare, Jiri Mikyska
2020, Journal of Computational Physics (405)
Based on experimental evidence and using mathematical modeling, inter-phase mass transfer processes of CO2 exsolving from and dissolving into water in heterogeneous porous media are investigated under two fundamentally different flow conditions: in a quasi one dimensional vertical column and in a two-dimensional tank with a lateral background water flow, both...
Declining aluminum toxicity and the role of exposure duration on brook trout mortality in acidified streams of the Adirondack Mountains, New York, USA
Barry P. Baldigo, Scott George, Gregory B. Lawrence, Eric A. Paul
2020, Environmental Toxicology and Chemistry (39) 623-636
Mortality of brook trout Salvelinus fontinalis and water chemistry were characterized in 6 headwater streams in the western Adirondacks of New York during spring 2015, 2016, and 2017 and compared with results from analogous tests done between 1980 and 2003 in many of the same streams, to assess temporal changes in toxicity...
Toward ecosystem accounts for Rwanda: Tracking 25 years of change in potential supply and flows of ecosystem services
Kenneth J. Bagstad, Jane Carter Ingram, Glenn-Marie Lange, Michel K. Masozera, Zachary H. Ancona, Mediatrice Bana, Desire Kabogo, Bernard Musana, Nsharwasi Leon Nabahungu, Emmanuel Rukundo, Evariste Rutebuka, Stephen Polasky, Denis Rugege, Claudine Uwera
2020, People and Nature (1) 163-188
1. Rwanda, a small but rapidly developing central African nation, has undertaken development of natural capital accounts to better inform its economic development through the World Bank’s Wealth Accounting and Valuation of Ecosystem Services (WAVES) Partnership. In this paper, we develop ecosystem service (ES) models to quantify the physical supply...
Conserving transboundary wildlife migrations: Recent insights from the Greater Yellowstone Ecosystem
Arthur D. Middleton, Hall Sawyer, Jerod A. Merkle, Matthew Kauffman, Eric. K. Cole, Sarah R. Dewey, Justin A. Gude, David D. Gustine, Douglas E. McWhirter, Kelly Proffitt, P. J. White
2020, Frontiers in Ecology and the Environment (18) 83-91
Animal migrations are ecologically, culturally, and economically important. Ungulate populations in many parts of Africa, Asia, Europe, and the Americas migrate long distances to access seasonally available resources, traversing vast landscapes in large numbers. Yet some migrations are declining, raising concerns among scientists and natural resource managers. We synthesize recent...
Resolving selenium exposure risk: Spatial, temporal, and tissue-specific variability of an endemic fish in a large, dynamic estuary
A. Robin Stewart, Frederick V. Feyrer, Rachel C. Johnson
2020, Science of the Total Environment (707)
Estuaries provide critical habitat for a vast array of fish and wildlife but are also a nexus for core economic activities that mobilize and concentrate contaminants that can threaten aquatic species. Selenium (Se), an essential element and potent reproductive toxin, is enriched in parts of the San Francisco Estuary (SFE)...
Multi-scale habitat selection by Northern Goshawks (Accipiter gentilis) in a fire-prone forest
Rachel V. Blakely, Rodney B. Siegel, Elisabeth B. Webb, Colin P. Dillingham, Matthew Johnson, Dylan C. Kesler
2020, Biological Conservation (241)
Increasing frequency and severity of wildfire may jeopardize persistence of large tracts of late seral forest, raising concerns over population viability of forest-dependent species like the Northern Goshawk (Accipiter gentilis). We tracked 20 adult Northern Goshawks with GPS loggers over 4 years to investigate roosting (nocturnal) and foraging (diurnal) habitat...
Anatomy of a caldera collapse: Kīlauea 2018 summit seismicity sequence in high resolution
David R. Shelly, Weston Thelen
2020, Geophysical Research Letters (46) 14395-14403
The 2018 Kīlauea eruption and caldera collapse generated intense cycles of seismicity tied to repeated large seismic (Mw ~5) collapse events associated with magma withdrawal from beneath the summit. To gain insight into the underlying dynamics and aid eruption response, we applied waveform-based earthquake detection and double-difference location as...
Weed-suppressive bacteria applied as a spray or seed mixture did not control Bromus tectorum
David A. Pyke, Scott Shaff, Michael A Gregg, Julie L. Conley
2020, Rangeland Ecology and Management (73) 749-752
We conducted two case studies testing effectiveness of a soil-borne bacteria, Pseudomonas fluorescens strain D7, in controlling Bromus tectorum (cheatgrass) and in affecting the density of sown desirable seedlings. We conducted two case studies testing D7’s ability to control of B. tectorum (cover, biomass and density) when mixed with native...
Roosting habitat use by sandhill cranes and waterfowl on the North and South Platte Rivers in Nebraska
Dana M Varner, Aaron T. Pearse, Andrew Bishop, Jonas Davis, John Denton, Roger Grosse, Heather M. Johnson, Emily Munter, Kirk D Schroeder, Robert E. Spangler, Mark Vrtiska, Angelina Wright
2020, Journal of Fish and Wildlife Management (11) 56-67
Migration ecology and habitat use of spring migrating birds using the Central Platte River is a well-explored topic, yet less is known about use of the North and South Platte rivers (NSPR) in western Nebraska. The efficiency and effectiveness of conservation efforts in the NSPR could be greatly improved with...
