Energetic status of Alaskan Chinook Salmon: Interpopulation comparisons and predictive modeling using bioelectrical impedance analysis
Kristin R. Courtney, Jeffrey A. Falke, M. Keith Cox, Jeff Nichols
2020, North American Journal of Fisheries Management (40) 209-224
Adult Pacific Salmon Oncorhynchus spp. undertake energetically demanding migrations wherein they must have adequate energy reserves to survive to spawning locations and reproduce. Proximate analysis provides insight into available energy stores (e.g., lipids), but the ability to non-lethally monitor energetic status may be useful for managers to better understand how...
Antibiotic resistant bacteria in wildlife: Perspectives on trends, acquisitions and dissemination, data gaps, and future directions
Andrew M. Ramey, Christina Ahlstrom
2020, Journal of Wildlife Diseases (56) 1-15
The proliferation of antibiotic resistant bacteria in the environment has potential negative economic and health consequences. Thus, previous investigations have targeted wild animals to understand the occurrence of antibiotic resistance in diverse environmental sources. In this critical review and synthesis, we summarize important concepts learned through the sampling...
Ground-motion amplification in Cook Inlet region, Alaska from intermediate-depth earthquakes, including the 2018 MW=7.1 Anchorage earthquake
Morgan P. Moschetti, Eric M. Thompson, John Rekoske, Mike Hearne, Peter M. Powers, Daniel E. McNamara, Carl Tape
2020, Seismological Research Letters (91) 142-152
We measure pseudospectral and peak ground motions from 44 intermediate‐depth Mw≥4.9">Mw≥4.9 earthquakes in the Cook Inlet region of southern Alaska, including those from the 2018 <span id="MathJax-Element-4-Frame"...
The sedimentary record of the 2018 Anchorage Earthquake in Eklutna Lake, Alaska: Calibrating the lacustrine seismograph
Maarten Van Daele, Peter J. Haeussler, Robert C. Witter, Nore Praet, Marc De Batist
2020, Seismological Research Letters (91) 126-141
The 30 November 2018 Mw">MMw">w 7.1 Anchorage earthquake caused modified Mercalli intensities of V¼ to V½ at Eklutna Lake...
Estimating population size with imperfect detection using a parametric bootstrap
Lisa Madsen, Daniel Dalthorp, Manuela Huso, Andy Aderman
2020, Environmetrics (31)
We develop a novel method of estimating population size from imperfectly detected counts of individuals and a separate estimate of detection probability. Observed counts are separated into classes within which detection probability is assumed constant. Within a detection class, counts are modeled as a single binomial...
Wintering in the western subarctic pacific increases mercury contamination of Red-legged Kittiwakes
Abram S Fleishman, Rachael Orben, Nobuo Kokubun, Alexis Will, Rosana Paredes, Joshua T. Ackerman, Akinori Takahashi, Alexander Kitaysky, Scott A. Shaffer
2020, Environmental Science & Technology (53) 13398-13407
Marine methylmercury concentrations vary geographically and with depth, exposing organisms to different mercury levels in unique habitats. Red-legged kittiwakes (Rissa brevirostris), a specialist predator, forage on fish and invertebrates from the mesopelagic zone, a part of the ocean with elevated methylmercury concentrations. We used kittiwakes as bioindicators of...
Nonlinear reaction–diffusion process models improve inference for population dynamics
Xinyi Lu, Perry J. Williams, Mevin Hooten, James A. Powell, Jamie N. Womble, Michael R. Bower
2020, Environmetrics (31)
Partial differential equations (PDEs) are a useful tool for modeling spatiotemporal dynamics of ecological processes. However, as an ecological process evolves, we need statistical models that can adapt to changing dynamics as new data are collected. We developed a model that combines an ecological diffusion equation and logistic growth to...
Plate boundary localization, slip-rates and rupture segmentation of the Queen Charlotte Fault based on submarine tectonic geomorphology
Daniel S. Brothers, Nathaniel C. Miller, Vaughn Barrie, Peter J. Haeussler, H. Gary Greene, Brian D. Andrews, Olaf Zielke, Peter Dartnell
2020, Earth and Planetary Science Letters
Linking fault behavior over many earthquake cycles to individual earthquake behavior is a primary goal in tectonic geomorphology, particularly across an entire plate boundary. Here, we examine the 1150-km-long, right-lateral Queen Charlotte-Fairweather fault system using comprehensive multibeam bathymetry data acquired along the Queen Charlotte Fault (QCF) offshore southeastern Alaska and...
Highlights of a cursory study of behavior of three instrumented buildings during the Mw7.1 Anchorage, Alaska, earthquake of November 30, 2018
Mehmet Celebi
2020, Seismological Research Letters (91) 56-65
This is a cursory study of the recorded responses of three buildings instrumented by the U.S. Geological Survey (USGS) in Anchorage, Alaska, during the Mw">MwMw 7.1 earthquake of 30 November 2018. The earthquake...
Climate teleconnections synchronize Picea glauca masting and fire disturbance: Evidence for a fire‐related form of environmental prediction
Davide Ascoli, Andrew Hacket-Pain, Jalene M. LaMontagne, Adrian Cardil, Marco Conedera, Janet Maringer, Renzo Motta, Ian S. Pearse, Giorgio Vacchiano
2020, Article
Synchronous pulses of seed masting and natural disturbance have positive feedbacks on the reproduction of masting species in disturbance‐prone ecosystems. We test the hypotheses that disturbances and proximate causes of masting are correlated, and that their large‐scale synchrony is driven by similar climate teleconnection patterns at both inter‐annual and...
Permafrost hydrology drives the assimilation of old carbon by stream food webs in the Arctic
Jonathon A O'Donnell, Michael P. Carey, Joshua C. Koch, Xiaomei Xu, Brett Poulin, Jennifer Walker, Christian E. Zimmerman
2020, Ecosystems (23) 435-453
Permafrost thaw in the Arctic is mobilizing old carbon (C) from soils to aquatic ecosystems and the atmosphere. Little is known, however, about the assimilation of old C by aquatic food webs in Arctic watersheds. Here, we used C isotopes (δ13C, Δ14C) to quantify C assimilation by biota across 12...
Global change-driven use of onshore habitat impacts polar bear faecal microbiota
Sophie Watson, Heidi Hauffe, Matthew Bull, Todd C. Atwood, Melissa McKinney, Massimo Pindo, Sarah Perkins
2020, ISME Journal (13) 2916-2926
The gut microbiota plays a critical role in host health, yet remains poorly studied in wild species. Polar bears (Ursus maritimus), key indicators of Arctic ecosystem health and environmental change, are currently affected by rapid shifts in habitat that may alter gut homeostasis. Declining sea ice has led to...
Bridging the gap between salmon spawner abundance and marine nutrient assimilation by juvenile salmon: Seasonal cycles and landscape effects at the watershed scale
Philip J. Joy, Craig A. Stricker, Renae Ivanoff, Mark S. Wipfli, Andrew C. Seitz, Matthew Tyers
2020, Ecosystems (23) 338-358
Anadromous Pacific salmon are semelparous, and resource subsidies from spawning adults (marine-derived nutrients, or MDN) benefit juvenile salmonids rearing in freshwater. However, it remains unclear how MDN assimilation relates to spawner abundance within a watershed. To address this, we examined seasonal, watershed-scale patterns of MDN assimilation...
Sedimentary evidence of prehistoric distant-source tsunamis in the Hawaiian Islands
SeanPaul La Selle, Bruce M. Richmond, Bruce E. Jaffe, Alan Nelson, Frances Griswold, Maria E.M. Arcos, Catherine Chague, James M. Bishop, Piero Bellanova, Haunani H. Kane, Brent D. Lunghino, Guy R. Gelfenbaum
2020, Sedimentology (67) 1249-1273
Over the past 200 years of written records, the Hawaiian Islands have experienced tens of tsunamis generated by earthquakes in the subduction zones of the Pacific "Ring of Fire" (e.g., Alaska-Aleutian, Kuril-Kamchatka, Chile, and Japan). Mapping and dating anomalous beds of sand and silt deposited by tsunamis in low-lying...
Weak effects of geolocators on small birds: a meta‐analysis controlled for phylogeny and publication bias
Vojtech Brlik, Jaroslav Kolecek, Malcolm Burgess, Steffen Hahn, Diana Humple, Milos Krist, Janne Ouwehand, Emily L. Weiser, Peter Adamik, Jose A. Alves, Debora Arlt, Sanja Barisic, Detlef Becker, Eduardo J. Belda, Vaclav Beran, Christiaan Both, Susana P. Bravo, Martins Briedis, Chutny Bohumir, Davor Cikovic, Nathan W. Cooper, Joana S. Costa, Victor R. Cueto, Tamara Emmenegger, Kevin Fraser, Olivier Gilg, Marina Guerrero, Michael T. Hallworth, Chris Hewson, Frederic Jiguet, James Johnson, Tosha Kelly, Dmitry Kishkinev, Michel Leconte, Terje Lislevand, Simeon Lisovski, Cosme Lopez, Kent P. McFarland, Peter P. Marra, Steven M. Matsuoka, Matyjasiak. Piotr, Christoph M. Meier, Benjamin Metzger, Juan S. Monros, Roland Neumann, Amy Newman, Ryan Norris, Tomas Part, Vaclav Pavel, Noah Perlut, Markus Piha, Jeroen Reneerkens, Christopher C. Rimmer, Amelie Roberto-Charro, Chiara Scandolara, Natalia Sokolova, Makiko Takenaka, Dirk Tolkmitt, Herman van Oosten, Arndt H. J. Wellbrock, Hazel Wheeler, Jan van der Winden, Klaudia Witte, Brad Woodworth, Petr Prochazka
2020, Journal of Animal Ecology (89) 207-220
Currently, the deployment of tracking devices is one of the most frequently used approaches to study movement ecology of birds. Recent miniaturisation of light‐level geolocators enabled studying small bird species whose migratory patterns were widely unknown. However, geolocators may reduce vital rates in tagged birds and may bias obtained movement...
Using redundant primer sets to detect multiple native Alaskan fish species from environmental DNA
Damian M. Menning, Trey Simmons, Sandra L. Talbot
2020, Conservation Genetics Resources (12) 109-123
Accurate and timely data regarding freshwater fish communities is important for informed decision-making by local, state, tribal, and federal land and resource managers; however, conducting traditional gear-based fish surveys can be an expensive and time-consuming process, particularly in remote areas, like those that characterize much of Alaska. To help address...
Focus areas for data acquisition for potential domestic sources of critical minerals—Rare earth elements
Jane M. Hammarstrom, Connie L. Dicken
2019, Open-File Report 2019-1023-A
Rare earth elements (REEs) are critical mineral commodities for the United States. In response to a need for information on potential domestic sources of REEs in mineral deposits, the U.S. Geological Survey (USGS) identified broad focus areas throughout the conterminous United States and Alaska as a guide for selecting new...
Integration of microfacies analysis, inorganic geochemical data, and hyperspectral imaging to unravel mudstone depositional and diagenetic processes in two cores from the Triassic Shublik Formation, Northern Alaska
Katherine J. Whidden, Justin E. Birdwell, Julie A. Dumoulin, Lionel C. Fonteneau, Brigette Martini
2019, Conference Paper, SEG global meeting abstracts
The Middle – Upper Triassic Shublik Formation is an organic-rich heterogeneous carbonate-siliciclastic-phosphatic unit that generated much of the oil in the Prudhoe Bay field and other hydrocarbon accumulations in northern Alaska. A large dataset, including total organic carbon (TOC), X-ray diffraction (XRD), X-ray fluorescence (XRF) and inductively coupled plasma –...
Future directions in sea otter research and management
Randall W. Davis, James L. Bodkin, Heather A. Coletti, Daniel Monson, Shawn E. Larson, Lilian P. Carswell, Linda M. Nichol
2019, Frontiers in Marine Science (5)
The conservation and management of sea otters has benefited from a dedicated research effort over the past 60 years enabling this species to recover from a few thousand in the early 20th century to about 150,000 today. Continued research to allow full, pre-exploitation recovery and restoration of nearshore ecosystems should...
Preliminary geologic map of the Greater Antilles and the Virgin Islands
Frederic H. Wilson, Greta Orris, Floyd Gray
2019, Open-File Report 2019-1036
IntroductionThis geologic map of the Greater Antilles and the Virgin Islands is a compilation of information from the literature, integrated to provide a seamless geologic map of the region. The geology shown on sheet 1 covers Cuba, the island of Hispaniola, which includes Haiti and the Dominican Republic, Jamaica, the...
Geology and assessment of undiscovered oil and gas resources of the Amerasia Basin Province, 2008
David W. Houseknecht, Kenneth J. Bird, Christopher P. Garrity
Thomas E. Moore, Donald L. Gautier, editor(s)
2019, Professional Paper 1824-BB
The Amerasia Basin Province encompasses the Canada Basin and the sediment prisms along the Alaska and Canada margins, outboard from basinward margins (hingelines) of the rift shoulders that formed during extensional opening of the Canada Basin. The province includes the Mackenzie River delta and slope, the outer shelves and marine...
Limited detection of antibodies to clade 2.3.4.4 A/Goose/Guangdong/1/1996 lineage highly pathogenic H5 avian influenza virus in North American waterfowl
David E. Stallknecht, Clara Kienzle-Dean, Nick Davis-Fields, Christopher S. Jennelle, Andrew S. Bowman, Jacqueline M. Nolting, Walter Boyce, James Crum, Jefferson Santos, Justin D. Brown, Diann Prosser, Susan E.W. De La Cruz, Joshua T. Ackerman, Michael L. Casazza, Scott Krauss, Daniel Perez, Andrew M. Ramey, Rebecca L. Poulson
2019, Journal of Wildlife Diseases (56) 47-57
During 2014, highly pathogenic (HP) influenza A viruses (IAVs) of the A/Goose/Guangdong/1/1996 lineage (GsGD-HP-H5), originating from Asia, were detected in domestic poultry and wild birds in Canada and the US. These clade 2.3.4.4 GsGD-HP-H5 viruses included reassortants possessing North American lineage gene segments; were detected in wild birds in the...
Managing effects of drought and other water resource challenges in Alaska and the Pacific Northwest
Jessica E. Halofsky, Jeremy S. Littell, David L. Peterson, Gregory D. Hayward, Rebecca Gravenmier
2019, Report, Effects of drought on forests and rangelands in the United States: Translating science into management responses
This is a Cooperator Report. As such, there is no specific abstract. The physical, ecological, and social environments of Alaska and the Pacific Northwest (PNW) region of the United States are extremely diverse. Alaska ranges from the Arctic Ocean and the very cold, dry environments of the North Slope to the...
Monitoring boreal avian populations: How can we estimate trends and trajectories from noisy data?
Christian Roy, Nicole L Michel, Colleen M. Handel, Steven Van Wilgenburg, Curtis Burkhalter, Kirsty A B Gurney, David Messmer, Karine Prince, Clark S Rushing, James E Saracco, Richard Schuster, Adam C. Smith, Paul A Smith, Peter Solymos, Lisa A Venier, Benjamin Zuckerberg
2019, Avian Conservation and Ecology (14)
Substantial effort has been dedicated to developing reliable monitoring schemes for North American bird populations, but our ability to monitor bird populations in the boreal forest remains limited because of the sparsity of long-term data sets, particularly in northerly regions. Given the importance of the boreal forest for many migratory...
Element cycling in the Middle-Late Triassic Shublik Formation: Mineralization vs. recycling of biolimiting nutrients in an unconventional resource play
Katherine J. Whidden, Julie A. Dumoulin, James Macquaker, Justin E. Birdwell, Adam Boehlke, Katherine L. French
2019, Conference Paper, New directions in geosciences for unconventional resources
The Triassic Shublik Formation in northern Alaska is one of the major source rocks in North America, having generated much of the petroleum in Prudhoe Bay and associated fields. The middle Shublik Formation, the focus of this study, is a highly phosphatic, organic-rich carbonate mudstone interval. Apatite cements can occur...
