Resilience in environmental risk and impact assessment: Concepts and measurement
David G. Angeler, Craig R. Allen, Ahjond S. Garmestani, Kevin L. Pope, Dirac Twidwell, Mirco Bundschuh
2018, Bulletin of Environmental Contamination and Toxicology (101) 543-548
Different resilience concepts have different assumptions about system dynamics, which has implications for resilience-based environmental risk and impact assessment. Engineering resilience (recovery) dominates in the risk assessment literature but this definition does not account for the possibility of ecosystems to exist in multiple regimes. In this paper we discuss resilience...
Dietary bioprocessed soybean meal does not affect the growth of exercised juvenile rainbow trout (Oncorhynchus mykiss)
Jill M. Voorhees, Michael Barnes, Steven R. Chipps, Michael Browne
2018, Journal of Animal Research and Nutrition (3) 1-13
Context: This 88-day experiment evaluated the rearing performance of juvenile rainbow trout (Oncorhynchus mykiss) fed one of three isonitrogenous and isocaloric diets and reared at velocities of either 2.3 or 18.7 cm s-1.Objective: Evaluate the effects of diet and exercise during rainbow trout rearing.Design: Fishmeal was the primary protein source...
Correlation of the Eagle Ford Group, Woodbine Group, and equivalent Cenomanian-Turonian Mudstones using regional wireline-log cross sections across the Texas Gulf Coast, U.S.A.
Nicholas J. Gianoutsos, Katherine J. Whidden, Russell F. Dubiel, William A. Rouse
2018, Gulf Coast Association of Geological Societies Transactions (68) 219-228
As part of the U.S. Geological Survey’s 2018 hydrocarbon assessment of the Eagle Ford Group and associated Cenomanian-Turonian strata, a series of regional wireline-log cross sections were constructed to examine geologic characteristics of this stratigraphic interval across the Texas Gulf Coast from Mexico to Louisiana. The cross sections were...
Preface: The wetland book, I: Structure and function, management, and methods
C. Max Finlayson, Mark Everard, Kenneth Irvine, Robert J. McInnes, Beth A. Middleton, Anne A. Van Dam, Nick C. Davidson
2018, Book chapter, The wetland book, I: Structure, function, management, and methods
The Wetland Book is a hard copy and online production that provides an unparalleled collation of information on wetlands. It is global in scope and contains 462 chapters prepared by leading wetland researchers and managers. The wide disciplinary and geographic scope is a unique feature and differentiates The Wetland Book...
Yellowstone grizzly bear investigations — Annual report of the Interagency Grizzly Bear Study Team 2017
Frank T. van Manen, Mark A. Haroldson, Bryn Karabensh, editor(s)
2018, Report
This Annual Report summarizes results of grizzly bear (Ursus arctos) monitoring and research conducted in the Greater Yellowstone Ecosystem (GYE) by the Interagency Grizzly Bear Study Team (IGBST) during 2017. This report also contains a summary of grizzly bear management actions to address conflict situations. Annual reports of the IGBST...
Quantifying uncertainty and tradeoffs in resilience assessments
Craig R. Allen, Hannah E. Birge, David G. Angeler, Craig Anthony Arnold, Brian C. Chaffin, Daniel A. DeCaro, Ahjond S. Garmestani, Lance Gunderson
2018, Ecology and Society (1)
Several frameworks have been developed to assess the resilience of social-ecological systems, but most require substantial data inputs, time, and technical expertise. Stakeholders and practitioners often lack the resources for such intensive efforts. Furthermore, most end with problem framing and fail to explicitly address trade-offs and uncertainty. To remedy this...
Data quality from a community-based, water-quality monitoring project in the Yukon River basin
Nicole M. Herman-Mercer, Ronald C. Antweiler, Nicole J. Wilson, Edda A. Mutter, Ryan C. Toohey, Paul F. Schuster
2018, Citizen Science: Theory and Practice (3) 1-13
This paper examines the quality of data collected by the Indigenous Observation Network, a community-based water-quality project in the Yukon River Basin of Alaska and Canada. The Indigenous Observation Network relies on community technicians to collect surface-water samples from as many as fifty locations to achieve their goals of monitoring...
Efficiently approximating the Pareto frontier: Hydropower dam placement in the Amazon basin
Xiaojian Wu, Jonathan Gomes-Selman, Qinru Shi, Yexiang Xue, Roosevelt Garcia-Villacorta, Eliza Anderson, Suresh Sethi, Scott Steinschneider, Alexander Flecker, Carla P. Gomes
2018, Conference Paper, Proc. Thirty-Second AAAI Conference on Artificial Intelligence
Real–world problems are often not fully characterized by a single optimal solution, as they frequently involve multiple competing objectives; it is therefore important to identify the so-called Pareto frontier, which captures solution trade-offs. We propose a fully polynomial-time approximation scheme based on Dynamic Programming (DP) for computing a polynomially succinct...
Will Alaska's fisheries regime prove resilient? Kenai River fishery management as a model for adaptive governance
James E. Powell, Mark S. Wipfli, Keith R. Criddle, Erik R. Schoen
2018, Fisheries Magazine (43) 26-30
No abstract available....
Insights into the emplacement of upper-crustal plutons and their relationship to large silicic calderas, from field relationships, geochronology, and zircon trace element geochemistry in the Stillwater – Clan Alpine caldera complex, western Nevada, USA
Joseph P. Colgan, David A. John, Christopher D. Henry, Kathryn E. Watts
2018, Journal of Volcanology and Geothermal Research (349) 163-176
Geologic mapping, new U-Pb zircon ages, and new and published 40Ar/39Ar sanidine ages document the timing and extent of Oligocene magmatism in the southern Stillwater Range and Clan Alpine Mountains of western Nevada, where Miocene extension has exposed at least six nested silicic calderas and underlying granitic plutons to crustal depths...
Growth-suppressing and algicidal properties of an extract from Arundo donax, an invasive riparian plant, against Prymnesium parvum, an invasive harmful alga
Reynaldo Patino, Rakib H. Rashel, Amede Rubio, Scott Longing
2018, Harmful Algae (71) 1-9
This study examined the ability of acidic and neutral/alkaline fractions of a methanolic extract from giant reed (Arundo donax) and of two of its constituents, gramine and skatole, to inhibit growth of the ichthyotoxic golden alga (Prymnesium parvum) in batch culture. For this study, growth suppression was defined as inhibition of...
The role of driving factors in historical and projected carbon dynamics of upland ecosystems in Alaska
Hélène Genet, Yujie He, Zhou Lyu, A. David McGuire, Qianlai Zhuang, Joy S. Clein, David D'Amore, Alec Bennett, Amy Breen, Frances Biles, Eugénie S. Euskirchen, Kristofer Johnson, Tom Kurkowski, Svetlana Schroder, Neal J. Pastick, T. Scott Rupp, Bruce K. Wylie, Yujin Zhang, Xiaoping Zhou, Zhiliang Zhu
2018, Ecological Applications (28) 5-27
It is important to understand how upland ecosystems of Alaska, which are estimated to occupy 84% of the state (i.e., 1,237,774 km2), are influencing and will influence state‐wide carbon (C) dynamics in the face of ongoing climate change. We coupled fire disturbance and biogeochemical models to assess the relative effects of...
Demography of the Pacific walrus (Odobenus rosmarus divergens) in a changing Arctic
Rebecca L. Taylor, Mark S. Udevitz, Chadwick V. Jay, John J. Citta, Lori T. Quakenbush, Patrick R. Lemons, Jonathan A. Snyder
2018, Marine Mammal Science (34) 54-86
The Pacific walrus (Odobenus rosmarus divergens) is a candidate to be listed as an endangered species under United States law, in part, because of climate change‐related concerns. While the population was known to be declining in the 1980s and 1990s, its recent status has not been determined. We developed Bayesian...
Quantifying postfire aeolian sediment transport using rare earth element tracers
David Dukes, Howell B. Gonzales, Sujith Ravi, David E. Grandstaff, R. Scott Van Pelt, Junran Li, Guan Wang, Joel B. Sankey
2018, Journal of Geophysical Research: Biogeosciences (123) 288-299
Grasslands, which provide fundamental ecosystem services in many arid and semiarid regions of the world, are undergoing rapid increases in fire activity and are highly susceptible to postfire-accelerated soil erosion by wind. A quantitative assessment of physical processes that integrates fire-wind erosion feedbacks is therefore needed relative to vegetation change,...
The nitrogen window for arctic herbivores: plant phenology and protein gain of migratory caribou (Rangifer tarandus)
Perry S. Barboza, Lindsay L. Van Someren, David D. Gustine, M. Syndonia Bret-Harte
2018, Ecosphere (9)
Terrestrial plants are often limited by nitrogen (N) in arctic systems, but constraints of N supply on herbivores are typically considered secondary to those of energy. We tested the hypothesis that forage N is more limiting than energy for arctic caribou by collecting key forages (three species of graminoids, three...
Environmental and ecological conditions at Arctic breeding sites have limited effects on true survival rates of adult shorebirds
Emily L. Weiser, Richard B. Lanctot, Stephen C. Brown, H. River Gates, Rebecca L. Bentzen, Joel Bety, Megan L. Boldenow, Willow B. English, Samantha E. Franks, Laura Koloski, Eunbi Kwon, Jean-François Lamarre, David B. Lank, Joseph R. Liebezeit, Laura McKinnon, Erica Nol, Jennie Rausch, Sarah T. Saalfeld, Nathan R. Senner, David H. Ward, Paul F. Wood, Brett K. Sandercock
2018, The Auk (135) 29-43
Many Arctic shorebird populations are declining, and quantifying adult survival and the effects of anthropogenic factors is a crucial step toward a better understanding of population dynamics. We used a recently developed, spatially explicit Cormack–Jolly–Seber model in a Bayesian framework to obtain broad-scale estimates of true annual survival rates for...
Rule reversal: Ecogeographical patterns of body size variation in the common treeshrew (Mammalia, Scandentia)
Eric J. Sargis, Virginie Millien, Neal Woodman, Link E. Olson
2018, Ecology and Evolution (8) 1634-1645
There are a number of ecogeographical “rules” that describe patterns of geographical variation among organisms. The island rule predicts that populations of larger mammals on islands evolve smaller mean body size than their mainland counterparts, whereas smaller‐bodied mammals evolve larger size. Bergmann's rule predicts that populations of a species in...
Detecting geothermal anomalies and evaluating LST geothermal component by combining thermal remote sensing time series and land surface model data
Mireia Romaguera, R. Greg Vaughan, J. Ettema, E. Izquierdo-Verdiguier, C. A. Hecker, van der Meer
2018, Remote Sensing of Environment (204) 534-552
This paper explores for the first time the possibilities to use two land surface temperature (LST) time series of different origins (geostationary Meteosat Second Generation satellite data and Noah land surface modelling, LSM), to detect geothermal anomalies and extract the geothermal component of LST, the LSTgt. We hypothesize that...
What to eat in a warming world: do increased temperatures necessitate hazardous duty pay?
L. Embere Hall, Anna D. Chalfoun
2018, Oecologia (186) 73-84
Contemporary climate change affects nearly all biomes, causing shifts in animal distributions and resource availability. Changes in resource selection may allow individuals to offset climatic stress, thereby providing a mechanism for persistence amidst warming conditions. Whereas the role of predation risk in food choice has been studied broadly, the extent...
Variation in angler distribution and catch rates of stocked rainbow trout in a small reservoir
Brian S. Harmon, Dustin R. Martin, Christopher J. Chizinski, Kevin L. Pope
2018, PLoS ONE (13) 1-6
We investigated the spatial and temporal relationship of catch rates and angler party location for two days following a publicly announced put-and-take stocking of rainbow trout (Oncorhynchus mykiss). Catch rates declined with time since stocking and distance from stocking. We hypothesized that opportunity for high catch rates would cause anglers...
Behavior and reproductive ecology of the Sicklefin Redhorse: An imperiled southern Appalachian Mountain fish
Scott D. Favrot, Thomas J. Kwak
2018, Transactions of the American Fisheries Society (147) 204-222
Many nongame fishes are poorly understood but are essential to maintaining healthy aquatic ecosystems globally. The undescribed Sicklefin Redhorse Moxostoma sp. is a rare, imperiled, nongame fish endemic to two southern Appalachian Mountain river basins. Little is known of its behavior and ecology, but this information is urgently needed for conservation planning....
The electric storm of November 1882
Jeffrey J. Love
2018, Space Weather (16) 37-46
In November 1882, an intense magnetic storm related to a large sunspot group caused widespread interference to telegraph and telephone systems and provided spectacular and unusual auroral displays. The (ring current) storm time disturbance index for this storm reached maximum −Dst ≈ 386 nT, comparable to Halloween storm of 29–31 October 2003, but...
Acute and chronic toxicity of aluminum to a unionid mussel (Lampsilis siliquoidea) and an amphipod (Hyalella azteca) in water‐only exposures
Ning Wang, Chris D. Ivey, Eric L. Brunson, Danielle M. Cleveland, Christopher G. Ingersoll, William A. Stubblefield, Allison S. Cardwell
2018, Environmental Toxicology and Chemistry (37) 61-69
The US Environmental Protection Agency (USEPA) is reviewing the protectiveness of the national ambient water quality criteria (WQC) for aluminum (Al) and compiling a toxicity data set to update the WQC. Freshwater mussels are one of the most imperiled groups of animals in the world, but little is known about...
Biogenic coal-to-methane conversion efficiency decreases after repeated organic amendment
Katherine J. Davis, Elliott P. Barnhart, Matthew W. Fields, Robin Gerlach
2018, Energy & Fuels (32) 2916-2925
Addition of organic amendments to coal-containing systems can increase the rate and extent of biogenic methane production for 60–80 days before production slows or stops. Understanding the effect of repeated amendment additions on the rate and extent of enhanced coal-dependent methane production is important if biological coal-to-methane conversion is to...
Using colony monitoring devices to evaluate the impacts of land use and nutritional value of forage on honey bee health
Matthew Smart, Clint Otto, Robert S. Cornman, Deborah D. Iwanowicz
2018, Agriculture (81) 1-14
Colony monitoring devices used to track and assess the health status of honey bees are becoming more widely available and used by both beekeepers and researchers. These devices monitor parameters relevant to colony health at frequent intervals, often approximating real time. The fine-scale record of hive condition can be further...
