Taxonomic, temporal, and spatial variations in zooplankton fatty acid composition in Puget Sound, WA, USA
Minna Hiltunen, Ursula Strandberg, Michael T. Brett, Amanda K. Winans, David Beauchamp, Miika Kotila, Julie E. Keister
2022, Estuaries and Coasts (45) 567-581
Fatty acid (FA) content and composition of zooplankton in Puget Sound, Washington (USA) was studied to investigate the nutritional quality of diverse zooplankton prey for juvenile salmon (Oncorhynchus spp.) in terms of their essential fatty acid (EFA) content. The study focus was on eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and arachidonic...
Quantifying the response of nitrogen speciation to hydrology in the Chesapeake Bay Watershed using a multilevel modeling approach
Isabella Bertani, Gopal Bhatt, Gary W. Shenk, Lewis C. Linker
2022, Journal of American Water Resources Association (58) 792-804
Excessive nitrogen (N) inputs to coastal waters can lead to severe eutrophication and different chemical forms of N exhibit varying levels of effectiveness in fueling primary production. Efforts to mitigate N fluxes from coastal watersheds are often guided by models that predict changes in N loads...
High-resolution remote sensing and multistate occupancy estimation identify drivers of spawning site selection in fall chum salmon (Oncorhynchus keta) across a sub-Arctic riverscape
Chelsea M. Clawson, Jeffrey A. Falke, Larissa L. Bailey, Joshua Rose, Anupma Prakash, Aaron E. Martin
2022, Canadian Journal of Fisheries and Aquatic Sciences (79) 380-394
Groundwater upwellings provide warmer, stable overwinter temperatures for developing salmon embryos, which may be particularly important in cold, braided, gravel-bed sub-Arctic rivers. We used a three-year time series of aerial counts and remote sensing to estimate the distribution of low and high aggregations of spawning fall chum salmon (Oncorhynchus keta),...
Late Quaternary deglaciation of Prince William Sound, Alaska
Peter J. Haeussler, Ari Matmon, Maurice Arnold, Georges Aumaitre, Didier Bourles, Karim Keddadouche
2022, Quaternary Research (105) 115-134
To understand the timing of deglaciation of the northernmost marine-terminating glaciers of the Cordilleran Ice Sheet (CIS), we obtained 26 10Be surface-exposure ages from glacially scoured bedrock surfaces in Prince William Sound (PWS), Alaska. We sampled six elevation transects between sea level and 620 m and spanning...
Temporal and petrogenetic links between Mesoproterozoic alkaline and carbonatite magmas at Mountain Pass, California
Kathryn E. Watts, Gordon B. Haxel, David M. Miller
2022, Economic Geology (117) 1-23
Mountain Pass is the site of the most economically important rare earth element (REE) deposit in the United States. Mesoproterozoic alkaline intrusions are spatiotemporally associated with a composite carbonatite stock that hosts REE ore. Understanding the genesis of the alkaline and carbonatite magmas is an essential scientific goal for a...
Trading off hatching success and cost in the captive breeding of Whooping Cranes
Hannah A. Edwards, Sarah J. Converse, Kelly D. Swan, Axel Moehrenschlager
2022, Animal Conservation (25) 101-109
Captive breeding is an increasingly used conservation strategy for species with a high risk of extinction in the wild, but managing a captive breeding programme can be challenging if there is a deficiency in knowledge about the species’ breeding biology. A knowledge gap can make it difficult to evaluate different...
Species-specific demographic and behavioral responses to food availability during migratory stopover
A. M. Tucker, Conor P. McGowan, James E. Lyons, A. Derose-Wilson, N.A. Clark
2022, Population Ecology (64) 19-34
Understanding the effects of migratory stopover site conditions on both demographic rates and migratory behaviors is critical for interpreting changes in passage population sizes at stopover sites and predicting responses to future changes and conservation actions. We used a Bayesian formulation of the open robust design model to analyze mark-resight...
An integrated path for spatial capture–recapture and animal movement modeling
Brett T. McClintock, Briana Abrahms, Richard Chandler, Paul B. Conn, Sarah J. Converse, Robbie Emmet, Beth Gardner, Nathan J. Hostetter, Devin S. Johnson
2022, Ecology
Ecologists and conservation biologists increasingly rely on spatial capture–recapture (SCR) and movement modeling to study animal populations. Historically, SCR has focused on population-level processes (e.g., vital rates, abundance, density, and distribution), whereas animal movement modeling has focused on the behavior of individuals (e.g., activity budgets, resource selection, migration). Even though...
Local climate adaptations in two ubiquitous Mojave Desert shrub species, Ambrosia dumosa and Larrea tridentata
Nathan A. Custer, Susan Schwinning, Lesley A. DeFalco, Todd Esque
2022, Journal of Ecology (110) 1072-1089
Widely distributed species are often locally adapted to climate gradients across their ranges. But little is known about the patterns of intraspecific adaptation in desert shrubs.We examined the questions of local adaptation in multiple populations of two common shrub species of the winter-wet Mojave Desert in North America in...
A Bayesian nonparametric approach to unmixing detrital geochronologic data
John R. Tipton, Glenn R. Sharman, Samuel Johnstone
2022, Mathematical Geosciences (54) 151-176
Sedimentary deposits constitute the primary record of changing environmental conditions that have acted on Earth’s surface over geologic time. Clastic material is eroded from source locations (parents) in sediment routing systems and deposited at sink locations (children). Both parents and children have characteristics that vary across many different dimensions, including...
Global application of an unoccupied aerial vehicle photogrammetry protocol for predicting aboveground biomass in non-forest ecosystems
Andrew Cunliffe, Karen Anderson, Fabio Boschetti, Richard E. Brazier, Hugh A. Graham, Isla H. Myers-Smith, Thomas Astor, Matthias M. Boer, Leonor G. Calvo, Patrick Clark, Michael D. Cramer, Miguel S. Encinas-Lara, Stephen M. Escarzaga, Adrian Fisher, Jose M Fernandez-Guisuraga, Katerina Gdulova, Breahna M. Gillespie, Anne Griebel, Niall P Hanan, Muhammed S. Hanggito, Stefan Haselberger, Caroline A. Havrilla, Phil Heilman, Wenjie Ji, Jason W. Karl, Sabine Kraushaar, Marguerite E. Mauritz, Mitchell Lyons, Irene Marzolff, C. D. McIntire, Daniel Metzen, Luis A. Mendez-Barroso, Simon C. Power, Jiri Prosek, Enoc Sanz-Ablanedo, Katherine J. Sauer, Damian Schulze-Bruninghoff, Petra Simova, Stephen Sitch, Julian L. Smit, Caiti M. Steele, Susana Suarez-Seoane, Sergio A. Vargas, Miguel L. Villarreal, Fleur Visser, Michael Wachendorf, Hannes Wirnsberger, Robert Wojcikiewicz
2022, Remote Sensing in Ecology and Conservation (8) 57-71
Non-forest ecosystems, dominated by shrubs, grasses and herbaceous plants, provide ecosystem services including carbon sequestration and forage for grazing, and are highly sensitive to climatic changes. Yet these ecosystems are poorly represented in remotely sensed biomass products and are undersampled by in situ monitoring. Current global change threats emphasize the need...
The distribution and structure of mangroves (Avicennia germinans and Rhizophora mangle) near a rapidly changing range limit in the northeastern Gulf of Mexico
Caitlin M. Snyder, Laura Feher, Michael Osland, Christopher J. Miller, A. Randall Hughes, Karen L Cummins
2022, Estuaries and Coasts (45) 181-195
In coastal wetlands, one of the most striking examples of climate change is the poleward range expansion of mangrove forests in response to warming winters. In North America, the Cedar Key region has often been considered the range limit for mangroves along the western coast of Florida (USA). However, within...
Metabolic flexibility of aerobic methanotrophs under anoxic conditions in Arctic lake sediments
Ruoying He, Jing Wang, John Pohlman, Zhongjun Jia, Yi-Xuan Chu, Matthew Wooller, Mary Beth Leigh
2022, The ISME Journal (16) 78-90
Methane (CH4) emissions from Arctic lakes are a large and growing source of greenhouse gas to the atmosphere with critical implications for global climate. Because Arctic lakes are ice covered for much of the year, understanding the metabolic flexibility of methanotrophs under anoxic conditions would aid in characterizing the mechanisms...
Factors affecting staff support of a voluntary nonlead ammunition outreach program
J. H. Schulz, S. A. Wilhelm Stanis, Christine Jie Li, Mark Morgan, Elisabeth B. Webb
2022, Applied Environmental Education and Communication (21) 55-72
Lead poisoning from ingestion of bullet fragments in gut piles and unretrieved deer carcasses continues to cause mortality in bald eagles. To address this issue, the Midwest region of the U.S. Fish and Wildlife Service (USFWS) initiated an outreach program during 2016–2018 encouraging hunters to voluntarily use nonlead ammunition while...
Shrub influence on soil carbon and nitrogen in a semi-arid grassland is mediated by precipitation and largely insensitive to livestock grazing
Heather L. Throop, Seth M. Munson, Nicole Hornslein, Mitchel P McClaran
2022, Arid Land Research and Management (36) 27-46
Dryland (arid and semi-arid) ecosystems globally provide more than half of livestock production and store roughly one-third of soil organic carbon (SOC). Biogeochemical pools are changing due to shrub encroachment, livestock grazing, and climate change. We assessed how vegetation microsite, grazing, and precipitation interacted to affect SOC and total nitrogen...
ShakeMap operations, policies, and procedures
David J. Wald, Charles Worden, Eric M. Thompson, Mike Hearne
2022, Earthquake Spectra (38) 756-777
The US Geological Survey’s ShakeMap is used domestically and globally for post-earthquake emergency management and response, engineering analyses, financial instruments, and other decision-making activities. Recent developments in the insurance, reinsurance, and catastrophe bond sectors link payouts of potentially hundreds of millions of dollars to ShakeMap products. Similarly, building codes, post-earthquake...
Multivariate Bayesian clustering using covariate-informed components with application to boreal vegetation sensitivity
Henry R. Scharf, Ann M. Raiho, Sierra Pugh, Carl A. Roland, David K. Swanson, Sarah E. Stehn, Mevin Hooten
2022, Biometrics (78) 1427-1440
Climate change is impacting both the distribution and abundance of vegetation, especially in far northern latitudes. The effects of climate change are different for every plant assemblage and vary heterogeneously in both space and time. Small changes in climate could result in large vegetation responses in sensitive assemblages but weak...
Short communication: evidence for geologic control of rip channels along Prince Edward Island, Canada
Phillipe Alan Wernette, Chris Houser
2022, Physical Geography (43) 145-162
Rip currents can move unsuspecting swimmers offshore rapidly and represent a significant risk to beach users worldwide, including along the northern coast of Prince Edward Island (PEI), Canada. Although many rip currents are ephemeral and/or spatially variable in response to changes in the nearshore bar morphology and wave and tidal...
Eye lenses reveal ontogenetic trophic and habitat shifts in an imperiled fish, Clear Lake hitch (Lavinia exilicauda chi)
Matthew J. Young, Veronica L. Violette, Justin Kinsey Clause, Miranda Bell-Tilcock, George Whitman, Rachel C. Johnson, Frederick V. Feyrer
2022, Canadian Journal of Fisheries and Aquatic Sciences (79) 21-30
Stable isotopes recorded in fish eye lenses are an emerging tool to track dietary shifts coincident with use of diverse habitats over the lifetime of individuals. Eye lenses are metabolically inert, sequentially deposited, archival tissues that can open avenues to chronicle contaminant exposures, diet histories, trophic dynamics and migratory histories...
Demographic and potential biological removal models identify raptor species sensitive to current and future wind energy
James E. Diffendorfer, Jessica C. Stanton, Julie A. Beston, Wayne E. Thogmartin, Scott R. Loss, Todd E. Katzner, Douglas H. Johnson, Richard A. Erickson, Matthew D. Merrill, Margo D. Corum
2022, Ecosphere (12)
A central challenge in applied ecology is understanding the effect of anthropogenic fatalities on wildlife populations and predicting which populations may be particularly vulnerable and in greatest need of management attention. We used 3 approaches to investigate potential effects of fatalities from collisions with wind turbines on 14 raptor species...
Material properties and triggering mechanisms of an andesitic lava dome collapse at Shiveluch Volcano, Kamchatka, Russia, revealed using the finite element method
Cory S Wallace, Lauren N. Schaefer, Marlène C. Villeneuve
2022, Rock Mechanics and Rock Engineering (55) 2711-2728
Shiveluch volcano (Kamchatka, Russia) is an active andesitic volcano with a history of explosive activity, dome extrusion, and structural collapse during the Holocene. The most recent major (> 1 km3) dome collapse occurred in November 1964, producing a ~ 1.5 km3 debris avalanche that traveled over 15 km from the vent and triggered...
Genomic signatures of thermal adaptation are associated with clinal shifts of life history in a broadly distributed frog
Hugo Cayuela, Yann Dorant, Brenna R. Forester, Dan L Jeffries, Rebecca McCaffery, Lisa A Eby, Blake R. Hossack, Jérôme M W Gippet, David S. Pilliod, W Chris Funk
2022, Journal of Animal Ecology (91) 1222-1238
Temperature is a critical driver of ectotherm life-history strategies, whereby a warmer environment is associated with increased growth, reduced longevity and accelerated senescence. Increasing evidence indicates that thermal adaptation may underlie such life-history shifts in wild populations. Single nucleotide polymorphisms (SNPs) and copy number variants (CNVs) can help uncover...
Estimating the influence of oyster reef chains on freshwater detention at the estuary scale using Landsat-8 imagery
Alice Alonso, Natalie G. Nelson, Simeon Yurek, David Kaplan, Maitane Olabarrieta, Peter C Frederick
2022, Estuaries and Coasts (45) 1-16
Oyster reef chains grow in response to local hydrodynamics and can redirect flows, particularly when reef chains grow perpendicular to freshwater flow paths. Singularly, oyster reef chains can act as porous dams that may facilitate nearshore accumulation of fresh or low-salinity water, in turn creating intermediate...
Atlantic sturgeon status and movement ecology in an extremely small spawning habitat: The Nanticoke River-Marshyhope Creek, Chesapeake Bay
D. H. Secor, M. H. P. O’Brien, N. Coleman, A. Horne, I. Park, David C. Kazyak, D. G. Bruce, C Stence
2022, Reviews in Fisheries Science and Aquaculture (30) 195-214
Biotelemetry of Atlantic sturgeon Acipenser oxyrinchus oxyrinchus has exposed spawning behaviors in ever-smaller estuaries, surprising for the NW Atlantic’s largest anadromous species. Small estuary — the Nanticoke River and Marshyhope Creek (Chesapeake Bay) — spawning-run adults and their habitat affinities are described based upon direct sampling and biotelemetry for the period 2014–2018....
A socio-ecological imperative for broadening participation in coastal and estuarine research and management
Lora A. Harris, Treda Grayson, Hilary A. Neckles, Christopher T Emrich, Kristy A Lewis, Kristin W. Grimes, Shanna Williamson, Corey Garza, Christine R Whitcraft, Jennifer Beseres Pollack, Drew M Talley, Benjamin Fertig, Cindy M Palinkas, Susan Park, Jamie Vaudrey, Allison M Fitzgerald, Johnny Quispe
2022, Estuaries and Coasts (45) 38-48
For most of the scientific disciplines associated with coastal and estuarine research, workforce representation does not match the demographics of communities we serve, especially for Black, Hispanic or Latino, and Indigenous peoples. This essay provides an overview of this inequity and identifies how a scientific society...
