Avoidance of cold-, cool-, and warm-water fishes to Zequanox® exposure
Matthew Barbour, James A. Luoma, Todd J. Severson, Jeremy K. Wise, Barbara Bennie
2021, Management of Biological Invasions (12) 96-107
Zequanox® is a biopesticide registered by the U.S. Environmental Protection Agency (USEPA) and the Canadian Pest Management Regulatory Agency for controlling dreissenid mussels with demonstrated selective toxicity. However, some research has indicated that Zequanox may impact the body condition and survival of some non-target species. We assessed avoidance behaviors of...
The influence of species life history and distribution characteristics on species responses to habitat fragmentation in an urban landscape
Staci M. Amburgey, David A. W. Miller, Carlton J. Rochester, Katy S. Delaney, Seth P. D. Riley, Cheryl S. Brehme, Stacie A. Hathaway, Robert N. Fisher
2021, Journal of Animal Ecology (90) 685-697
Fragmentation within urbanized environments often leads to a loss of native species diversity; however, variation exists in responses among-species and among-populations within species.We aimed to identify patterns in species biogeography in an urbanized landscape to understand anthropogenic effects on vertebrate communities and identify species that are more sensitive or...
Comparing tree-ring based reconstructions of snowpack variability at different scales for the Navajo Nation
Rebecca Lynn Brice, Christopher H. Guiterman, Connie A. Woodhouse, Carlee McClellan, Paul Sheppard
2021, Climate Services (22)
Snowpack in the western U.S. is on the decline, largely attributed to increasing temperatures in the region. This is a critical issue for many Native American communities who disproportionately rely on local snow-fed water supplies. In light of a combined ongoing drought...
Rock gnome lichen (Gymnoderma lineare) monitoring assessment, southern Appalachian Mountains, 1983–2008
Andrea Woodward
2021, Open-File Report 2021-1011
Rock gnome lichen (Gymnoderma lineare [Evans] Yoshimura and Sharp) was listed as a federally endangered species in 1995. It is endemic to the southern Appalachian Mountains, with most known populations occurring in North Carolina, where it grows on vertical rock faces in the fog zone above an elevation...
The role of the U.S. Geological Survey in monitoring North Dakota’s environmental conditions
Karen R. Ryberg
2021, Newsletter, North Dakota Climate Bulletin
No abstract available. ...
Eocene magma plumbing system beneath Cortez Hills Carlin-type gold deposit, Nevada: Is there a deep-seated pluton?
Celestine N. Mercer
2021, Economic Geology (116) 501-513
The magmatic-hydrothermal conceptual model for Carlin-type gold deposit genesis calls upon deep-seated Eocene plutons as the primary source of gold-bearing fluids. However, geophysical surveys, geologic mapping, drilling, geochronology, isotopic tracers, and fluid inclusion chemistry have returned ambiguous evidence for the existence of such plutons. The...
Preface to the Focus Section on the 2020 Intermountain West earthquakes
Ryan D. Gold, Jayne Bormann, Keith D. Koper
2021, Seismological Research Letters (92)
The Intermountain West region of the United States extends from the eastern margin of the Sierra Nevada and Cascade Mountains in the west to the Rocky Mountains in the east. The region is characterized by dextral shear along the eastern margin of the Sierra Nevada and nearly east-west extension in...
Unmixing multiple metamorphic muscovite age populations with powder X-ray diffraction and 40Ar/39Ar analysis
Ryan J. McAleer, David Bish, Michael J. Kunk, Peter M. Valley, Gregory J. Walsh, Robert Wintsch
2021, American Journal of Science (321) 332-364
A combination of modal estimates from powder X-ray diffraction (XRD) experiments and argon isotopic data shows that muscovite 40Ar/39Ar total gas age correlates with muscovite composition near the retrograde Bald Mountain shear zone (BMSZ) in Claremont, New Hampshire, and that the shear zone was active at ∼245...
Mixed-stock analysis in the age of genomics: Rapture genotyping enables evaluation of stock-specific exploitation in a freshwater fish population with weak genetic structure
Peter T. Euclide, Tom MacDougall, Jason M. Robinson, Matthew D. Faust, Chris C. Wilson, Kuan-Yu Chen, Elizabeth A. Marschall, Wesley Larson, Stuart A. Ludsin
2021, Evolutionary Applications (14) 1403-1420
Mixed-stock analyses using genetic markers have informed fisheries management in cases where strong genetic differentiation occurs among local spawning populations, yet many fisheries are supported by multiple spawning stocks that are weakly differentiated. Freshwater fisheries exemplify this problem, with many harvested populations supported by multiple stocks of young evolutionary age...
The genetic composition of wild recruits in a recovering lake trout population in Lake Michigan
Wesley A. Larson, Matthew S. Kornis, Keith N. Turnquist, Charles R. Bronte, Mark E. Holey, S. Dale Hanson, Theodore J. Treska, Wendylee Stott
2021, Canadian Journal of Fisheries and Aquatic Sciences (78) 286-300
Strain performance evaluations are vital for developing successful fishery management and restoration strategies. Here, we utilized genotypes from 36 microsatellites to investigate hatchery strain contribution to collections of naturally produced lake trout (Salvelinus namaycush) sampled across Lake Michigan. Strain composition varied by area, with recoveries of Seneca Lake strain exceeding...
Nest microclimates of Greater Sage-Grouse in a post-megafire landscape: does selection equate to success?
Christopher R. Anthony, Christian A. Hagen, Katie Dugger, R. Dwayne Elmore
2021, Ornithological Applications (123)
Temperature at fine spatial scales is an important driver of nest site selection for many avian species during the breeding season and can influence nest success. Sagebrush (Artemisia spp.) communities have areas with high levels of vegetation heterogeneity and high thermal variation; however, fire removes vegetation that provides protection from...
Contrasting patterns of demography and population viability among gopher tortoise (Gopherus polyphemus) populations at the species’ northern range edge
Brian Folt, J.M. Goessling, A. M. Tucker, C. Guyer, S. Herman, E. Shelton-Nix, Conor P. McGowan
2021, Journal of Wildlife Management (85) 617-630
Population viability analyses are useful tools to predict abundance and extinction risk for imperiled species. In southeastern North America, the federally threatened gopher tortoise (Gopherus polyphemus) is a keystone species in the diverse and imperiled longleaf pine (Pinus palustris) ecosystem, and researchers have suggested that tortoise populations are declining and...
Waif gopher tortoise survival and site fidelity following translocation
R.K. McKee, K.A. Buhlmann, Clinton T. Moore, J. Hepinstall-Cymerman, T.D. Tuberville
2021, Journal of Wildlife Management (85) 640-653
Gopher tortoises (Gopherus polyphemus) are among the most commonly translocated reptiles. Waif tortoises are animals frequently of unknown origin that have been displaced from the wild and often held in human possession for various reasons and durations. Although there are risks associated with any translocation, waif tortoises are generally excluded...
Seal body condition and atmospheric circulation patterns influence polar bear body condition, recruitment, and feeding ecology in the Chukchi Sea
Karyn D. Rode, Eric V. Regehr, Jeffrey F. Bromaghin, Ryan H. Wilson, Michelle St. Martin, Justin A. Crawford, Lori T. Quakenbush
2021, Global Change Biology (27) 2684-2701
Polar bears (Ursus maritimus) are experiencing loss of sea ice habitats used to access their marine mammal prey. Simultaneously, ocean warming is changing ecosystems that support marine mammal populations. The interactive effects of sea ice and prey are not well understood yet may explain spatial‐temporal variation in the response of...
2021 Computational Infrastructure for Geodynamics Developers Workshop
Brad T. Aagaard, Jed Brown, Catherin Cooper, Rene Gassmoeller, Lorraine Hwang, Marc Spiegelman
2021, Conference Paper
The CIG Developers Workshop resulted in a number of recommendations that we think will help expand the CIG developer community, make software more accessible to new users, and increase developer productivity through use of common infrastructure and best practices for software development. This includes building a broad user base with...
Response of an asymmetrical five-story building in Fairbanks, Alaska during the November 30, 2018 M7.1 Anchorage, Alaska earthquake
Mehmet Celebi, Natalia Ruppert
2021, Report
A recently constructed, five-story, asymmetrical steel building on the campus of the University of Alaska, Fairbanks was equipped with a strong-motion array that recorded the M7.1 Anchorage earthquake of November 30, 2018 at an epicentral distance of 408 km. The largest recorded peak accelerations at...
U–Pb zircon eruption age of the Old Crow tephra and review of extant age constraints
Seth D. Burgess, Jorge A. Vazquez, Christopher F. Waythomas, Kristi L. Wallace
2021, Quaternary Geochronology (66)
Eruption of the Old Crow tephra deposited ~200 km3 of volcanic ash throughout Alaska and the northwestern Yukon (eastern Beringia), providing an isochronous marker across the region on a scale unique in the Pleistocene. The Old Crow tephra represents a critical temporal piercing point used...
The influence of land cover and storm magnitude on hydrologic flowpath activation and runoff generation in steep tropical catchments of central Panama
Andrew L. Birch, Robert Stallard, Sidney A. Bush, Holly R. Barnard
2021, Journal of Hydrology (596)
Despite abundant research documenting that land use/land cover (LULC) have substantial impacts on the hydrology of humid tropical systems, field-based evidence for the physical mechanisms behind these impacts are still lacking. In particular, our understanding of the hydrologic flowpaths that generate runoff in these...
Introduction to a special section: Integrated pest management—extending a terrestrial paradigm to aquatic environments
Mark P. Gaikowski, Patrick Kocovsky
2021, North American Journal of Fisheries Management (43) 261-263
No abstract available. ...
Composition and distribution of fish environmental DNA in an Adirondack watershed
Robert S. Cornman, James E. McKenna Jr., Jennifer A. Fike
2021, PeerJ (9)
BackgroundEnvironmental DNA (eDNA) surveys are appealing options for monitoring aquatic biodiversity. While factors affecting eDNA persistence, capture and amplification have been heavily studied, watershed-scale surveys of fish communities and our confidence in such need further exploration.MethodsWe characterized fish eDNA compositions using rapid, low-volume filtering with replicate and control...
Feral horse space use and genetic characteristics from fecal DNA
Sarah R. B. King, Kathryn A. Schoenecker, Jennifer A. Fike, Sara J. Oyler-McCance
2021, Journal of Wildlife Management (85) 1074-1083
Feral horses (Equus ferus caballus) in the western United States are managed by the Bureau of Land Management (BLM) and United States Forest Service in designated areas on public lands with a goal of maintaining populations in balance with multiple uses of the landscape. Small, isolated populations can be at...
Status of Cisco in Lake Superior in 2017
Cory Goldsworthy, Daniel L. Yule
2021, Report, The state of Lake Superior ecosystem in 2017
This report describes the status of fish species and their habitat in Lake Superior during the reporting period of 2012-2016 in response to achievement of fish community objectives (FCOs) established by fishery managers for the lake. The overarching goal for the FCOs continued to be met as the fish community...
The contribution of water radiolysis to marine sedimentary life
Justine F. Sauvage, Ashton F. Flinders, Arthur J. Spivack, Robert Pockalny, Ann G. Dunlea, Chloe H. Anderson, David Smith, Richard W. Murray, Steven D’Hondt
2021, Nature Communications (12)
Water radiolysis continuously produces H2 and oxidized chemicals in wet sediment and rock. Radiolytic H2 has been identified as the primary electron donor (food) for microorganisms in continental aquifers kilometers below Earth’s surface. Radiolytic products may also be significant for sustaining life in subseafloor sediment and subsurface environments...
State of Lake Superior ecosystem in 2017
Bryan G. Matthias, Thomas R. Hrabik, Joel C. Hoffman, Owen Gorman, Mike J Seider, Michael E. Sierszen, Mark Vinson, Daniel L. Yule, Peder M. Yurista
2021, Report, The State of Lake Superior Ecosystem in 2017
This report describes the status of fish species and their habitat in Lake Superior during the reporting period of 2012-2016 in response to achievement of fish community objectives (FCOs) established by fishery managers for the lake. The overarching goal for the FCOs continued to be met as the fish community...
Nitrogen and phosphorus sources and delivery from the Mississippi/Atchafalaya River Basin: An update using 2012 SPARROW models
Dale M. Robertson, David A. Saad
2021, Journal of the American Water Resources Association (57) 406-429
Nitrogen (N) and phosphorus (P) inputs throughout the Mississippi/Atchafalaya River Basin (MARB) have been linked to the Gulf of Mexico hypoxia and water‐quality problems throughout the MARB. To describe N and P loading throughout the MARB, SPAtially Referenced Regression On Watershed attributes (SPARROW) models were previously...
