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...
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...
Aluminum bioavailability and toxicity to aquatic organisms: Introduction to the special section
William J. Adams, Allison S. Cardwell, David K. DeForest, Robert W. Gensemer, Robert C. Santore, Ning Wang, Eirik Nordheim
2018, Environmental Toxicology and Chemistry (37) 34-35
No abstract available....
Removal of San Clemente Dam did more than restore fish passage
Thomas H. Williams, Amy E. East, Douglas P. Smith, David A. Boughton, Nate Mantua, Lee R. Harrison
2018, The Osprey (89) 1, 4-9
No abstract available....
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....
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,...
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...
Purpose, processes, partnerships, and products: four Ps to advance participatory socio-environmental modeling
Steven Gray, Alexey Voinov, Michael Paolisso, Rebecca Jordan, Todd BenDor, Pierre Bommel, Pierre D. Glynn, Beatrice Hedelin, Klaus Hubacek, Josh Introne, Nagesh Kolagani, Bethany Laursen, Christina Prell, Laura Schmitt-Olabisi, Alison Singer, Eleanor J. Sterling, Moira Zellner
2018, Ecological Applications (28) 46-61
Including stakeholders in environmental model building and analysis is an increasingly popular approach to understanding ecological change. This is because stakeholders often hold valuable knowledge about socio-environmental dynamics and collaborative forms of modeling produce important boundary objects used to collectively reason about environmental problems. Although the number of participatory modeling...
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...
The size, distribution, and mobility of landslides caused by the 2015 Mw7.8 Gorkha earthquake, Nepal
Kevin Roback, Marin K. Clark, A. Joshua West, Dimitrios Zekkos, Li, Sean F. Gallen, Deepak Chamlagain, Jonathan W. Godt
2018, Geomorphology (301) 121-138
Coseismic landslides pose immediate and prolonged hazards to mountainous communities, and provide a rare opportunity to study the effect of large earthquakes on erosion and sediment budgets. By mapping landslides using high-resolution satellite imagery, we find that the 25 April 2015 Mw7.8 Gorkha earthquake and aftershock sequence produced at least...
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...
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...
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...
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...
Advances in drainage: Selected works from the Tenth International Drainage Symposium
Jeffrey S. Strock, Christopher Hay, Matthew Helmers, Kelly A. Nelson, Gary R. Sands, R. Wayne Skaggs, Kyle R. Douglas-Mankin
2018, Transactions of the ASABE (61) 161-168
This article introduces a special collection of fourteen articles accepted from among the 140 technical presentations, posters, and meeting papers presented at the 10th International ASABE Drainage Symposium. The symposium continued in the tradition of previous symposia that began in 1965 as a forum for presenting and assessing the progress...
Diel predator activity drives a dynamic landscape of fear
Michel T. Kohl, Daniel R. Stahler, Matthew C. Metz, James D. Forester, Matthew J. Kauffman, Nathan Varley, P.J. White, Douglas W. Smith, Daniel R. MacNulty
2018, Ecological Monographs (88) 638-652
A “landscape of fear” (LOF) is a map that describes continuous spatial variation in an animal's perception of predation risk. The relief on this map reflects, for example, places that an animal avoids to minimize risk. Although the LOF concept is a potentially unifying theme in ecology that is often...
Adding value to monitoring efforts with environmental DNA
Adam J. Sepulveda, Andrew M. Ray, Anna M. McKee
2018, Wildlife Society Newsletter (7) 2-7
No abstract available....
Serologic surveillance of wild and pen-reared ring-necked pheasants (Phasianus colchicus) as a method of understanding disease reservoirs
Ian Dwight, Peter S. Coates, Simone T. Stoute, C. Gabriel Senties-Cue, Radhika V. Gharpure, Maurice E. Pitesky
2018, Journal of Wildlife Diseases (54)-414
We investigated exposure to infectious diseases in wild (n=33) and pen-reared (n=12) Ring-necked Pheasants (Phasianus colchicus) in the Central Valley of California during 2014 and 2015. Serologic tests were positive for antibodies against hemorrhagic enteritis (HE), infectious bursal disease (IBD), and Newcastle disease (ND) viruses in both wild and pen-reared...
Long-Term Movement and Estimated Age of a Paddlefish (Polyodon spathula) in the Arkansas River Basin of Oklahoma
James M. Long
2018, Southwestern Naturalist (62) 212-215
We report the age and distance moved for an individual paddlefish (Polyodon spathula) that was tagged March 1998 in the Cimarron River Arm of Keystone Lake, Oklahoma, and snagged by an angler in April 2016 downstream of Eufaula Dam, Oklahoma. The fish was part of a cohort spawned in 1995....
Implementing the 2012 North American Waterfowl Management Plan revision: Populations, habitat, and people
Dale D. Humburg, Michael G. Anderson, Michael G. Brasher, Michael F. Carter, John M. Eadie, David C. Fulton, Fred A. Johnson, Michael C. Runge, Mark P. Vrtiska
2018, Journal of Wildlife Management (82) 275-286
The North American Waterfowl Management Plan (NAWMP) has established a model for wildlife conservation planning over the last 3 decades. Management at a continental scale, leveraged funding, regional partnerships, and a strong science basis have been notable features. Periodic updates to the NAWMP occurred since implementation in 1986; however, a...
Exudation rates and δ13C signatures of tree root soluble organic carbon in a riparian forest
S. W. Gougherty, J. E. Bauer, J. W. Pohlman
2018, Biogeochemistry (137) 237-252
Tree root exudation (TRE) of water soluble organic carbon (WSOC) is an important but under-assessed component of net primary production, and is thought to strongly influence rhizosphere biogeochemistry. Riparian systems in particular are often viewed as biogeochemical hot spots fueled partially by root exudate WSOC. However, TRE rates have not...
A land product characterization system for comparative analysis of satellite data and products
Kevin Gallo, Gregory L. Stensaas, John L. Dwyer, Ryan Longhenry
2018, Remote Sensing (10)
A Land Product Characterization System (LPCS) has been developed to provide land data and products to the community of individuals interested in validating space-based land products by comparing them with similar products available from other sensors or surface-based observations. The LPCS facilitates the application of global multi-satellite and in...
Size, growth, and density data for shallow-water sea urchins from Mexico to the Aleutian Islands, Alaska, 1956–2016
Thomas A Ebert, Louis Barr, James L. Bodkin, Dirk Burcham, Dominique Bureau, Henry Carson, Nancy Caruso, Jennifer E. Caselle, Jeremy Claisse, Sabrina Clemente, Kathryn Davis, Paul Detwiler, John Dixon, David Duggins, John Engle, James Estes, Scott Groth, Benjamin Grupe, Peter Halmay, Kyle Hebert, Jose Carlos Hernandez, Laura J. Jurgens, Peter Kalvass, Michael C. Kenner, Brenda Konar, David Kushner, Lynn Lee, David Leighton, Gabriela Montano-Moctezuma, Eric Munk, Irma Olguin Espinoza, Ben Weitzman
2018, Ecology (99) 761
Size, growth, and density have been studied for North American Pacific coast sea urchins Strongylocentrotus purpuratus, S. droebachiensis, S. polyacanthus, Mesocentrotus (Strongylocentrotus) franciscanus, Lytechinus pictus, Centrostephanus coronatus, and Arbacia stellata by various workers at diverse sites and for varying lengths of time from 1956 to present. Numerous peer-reviewed publications have used some of these data but some data have...
Ecosystem classification and mapping of the Laurentian Great Lakes
C.M. Riseng, K. Wehrly, L. Wang, E. Rutherford, James E. McKenna Jr., L. Johnson, L. Mason, C. Castiglione, T. Hollenhorst, Beth L. Sparks-Jackson, Scott P. Sowa
2018, Canadian Journal of Fisheries and Aquatic Sciences (75) 1693-1712
Owing to the enormity and complexity of the Laurentian Great Lakes, an ecosystem classification is needed to better understand, protect, and manage this largest freshwater ecosystem in the world. Using a combination of statistical analyses, published knowledge, and expert opinion, we identified key driving variables and their ecologically relevant thresholds...
Managing the water-energy-food nexus: Opportunities in Central Asia
Shokhrukh Jaliliv, Saud A. Amer, Frank Ward
2018, Journal of Hydrology (557) 407-425
This article examines impacts of infrastructure development and climate variability on economic outcomes for the Amu Darya Basin in Central Asia. It aims to identify the most economically productive mix of expanded reservoir storage for economic benefit sharing to occur, in...
