A genetic warning system for a hierarchically structured wildlife monitoring framework
Shawna J Zimmerman, Cameron L. Aldridge, Michael O'Donnell, David R. Edmunds, Peter S. Coates, Brian G. Prochazka, Jennifer A. Fike, Todd B. Cross, Bradley C. Fedy, Sara J. Oyler-McCance
2023, Ecological Applications (33)
Genetic variation is a well-known indicator of population fitness yet is not typically included in monitoring programs for sensitive species. Additionally, most programs monitor populations at one scale, which can lead to potential mismatches with ecological processes critical to species' conservation. Recently developed methods...
Comparison of two estrogen chemically activated luciferase expression cell bioassays to liquid chromatography–mass spectrometry for quantifying estrone in water samples
Jennifer C. Brennan, Abigail Henke, Robert Gale, Diane K. Nicks, Donald Tillitt
2023, Environmental Toxicology and Chemistry (42) 333-339
Chemically activated luciferase expression (CALUX) cell bioassays are popular tools for assessing endocrine activity of chemicals such as certain environmental contaminants. Although activity equivalents can be obtained from CALUX analysis, directly comparing these equivalents to those obtained from analytical chemistry methods can be problematic because of...
Habitat connectivity and host relatedness influence virus spread across an urbanising landscape in a fragmentation-sensitive carnivore
Christopher P. Kozakiewicz, Christopher P. Burridge, Justin S. Lee, Simona J Kraberger, Nicholas M Fountain-Jones, Robert N. Fisher, Lisa M. Lyren, Megan K. Jennings, Seth P D Riley, Laurel E K Serieys, Meggan E. Craft, W Chris Funk, Kevin R. Crooks, Sue VandeWoude, Scott Carver
2023, Virus Evolution (9)
Spatially heterogeneous landscape factors such as urbanisation can have substantial effects on the severity and spread of wildlife diseases. However, research linking patterns of pathogen transmission to landscape features remains rare. Using a combination of phylogeographic and machine learning approaches, we tested the influence of landscape and host factors...
Estimating phosphorus retention capacity of flow-through wetlands
Song S. Qian, Kristi K. Arend, Stephen J Jacquemin, S. Mazeika Patricio Sullivan, Kurt P. Kowalski
2023, Ecological Engineering (187)
A Bayesian hierarchical modeling approach is introduced to pool data properly from multiple flow-through wetlands to estimate wetland-specific long-term phosphorus retention capacity. By pooling data from multiple wetlands, we overcome the difficulties in estimating the effectiveness of using constructed and...
Cryptic declines of small, cold-water specialists highlight potential vulnerabilities of headwater streams as climate refugia
Blake R. Hossack, Michael LeMoine, Emily Oja, Lisa A Eby
2023, Biological Conservation (227)
Increasing temperatures and climate-driven disturbances like wildfire are a growing threat to many species, including cold-water specialists. Montane areas and cold streams are often considered climate refugia that buffer communities against change. However, climate refugia are often species-specific, and despite growing...
Book review: Quasispecies as a unifying concept in population dynamics
Don DeAngelis
2023, Mathematical Biosciences (355)
The quasispecies concept had two independent origins. One source was the theoretical ideas of Manfred Eigen and Peter Schuster in the 1970s. Studying the self-organization and evolution of primitive RNA molecules, they defined quasispecies as a distribution of mutant viral genomes generated by the mutation-selection process. In particular, the quasispecies...
Five year analyses of vegetation response to restoration using rock detention structures in southeastern Arizona, United States
Natalie R. Wilson, Laura M. Norman
2023, Environmental Management (71) 921-939
Rock detention structures (RDS) are used in restoration of riparian areas around the world. The purpose of this study was to analyze the effect of RDS installation on vegetation in terms of species abundance and composition. We present the results from 5 years of annual vegetation...
Wetland occupancy by duck broods in cropland-dominated landscapes of the United States Prairie Pothole Region
Blake J Mitchell, Catrina V Terry, Kevin M Ringelman, Kaylan M Kemink, Michael J. Anteau, Adam K. Janke
2023, Journal of Wildlife Management (87)
The Prairie Pothole Region (PPR) is globally important for breeding waterfowl but has been altered via wetland drainage and grassland conversion to accommodate agricultural land use. Thus, understanding the ecology of waterfowl in these highly modified landscapes is essential for their conservation. Brood occurrence is the...
Bottled water contaminant exposures and potential human effects
Paul M. Bradley, Kristin M. Romanok, Kelly L. Smalling, Michael J. Focazio, Nicola Evans, Suzanne C. Fitzpatrick, Carrie E Givens, Stephanie Gordon, James L. Gray, Emily M. Green, Dale W. Griffin, Michelle Hladik, Leslie K. Kanagy, John T. Lisle, Keith Loftin, R. Blaine McCleskey, Elizabeth Medlock-Kakaley, Ana Navas-Acien, David A. Roth, Paul F. South, Christopher P. Weis
2023, Environment International (171)
Bottled water (BW) consumption in the United States and globally has increased amidst heightened concern about environmental contaminant exposures and health risks in drinking water supplies, despite a paucity of directly comparable, environmentally-relevant contaminant exposure data for BW. This study provides insight into exposures and cumulative risks to...
Declines in reproductive condition of male largemouth bass (Micropterus salmoides) following seasonal exposure to estrogenic endocrine-disrupting compounds
Jessica Kristin Leet, Cathy A. Richter, Robert Gale, Donald E. Tillitt, Jill Jenkins
2023, International Journal of Molecular Sciences (23)
Reproductive abnormalities, that could lead to possible effects at the population level, have been observed in wild fish throughout the United States, with high prevalence in largemouth bass (LMB; Micropterus salmoides) and smallmouth bass (Micropterus dolomieu). Estrone (E1) and atrazine (ATR) are common environmental contaminants often associated with...
Genetic architecture and evolution of color variation in American black bears
E. Puckett, I. S. Davis, D. C. Harper, K. Wakamatsu, G. Battu, J. L. Belant, D. E. Beyer, C. Carpenter, A. P. Crupi, M. Davidson, C. S. DePerno, N. Forman, N. L. Fowler, D. L. Garshelis, N. Gould, K. Gunther, Mark A. Haroldson, S. Ito, David. M Kocka, C. Lackey, R. Leahy, C. Lee-Roney, T. Lewis, A. Lutto, K. McGowan, C. Olfenbuttel, M. Orlando, A. Platt, M. D. Pollard, M. Ramaker, Heather Reich, Jaime L. Sajecki, S. K. Sell, J. Strules, S. Thompson, Frank T. van Manen, Craig Whitman, R. Williamson, F. Winslow, C. B. Kaelin, M. S. Marks, G. S. Barsh
2023, Current Biology (33) 86-97
Color variation is a frequent evolutionary substrate for camouflage in small mammals, but the underlying genetics and evolutionary forces that drive color variation in natural populations of large mammals are mostly unexplained. The American black bear, Ursus americanus (U. americanus), exhibits a range of colors including the cinnamon morph, which has a similar...
Spatial and temporal distribution of sinuous ridges in southeastern Terra Sabaea and the northern region of Hellas Planitia, Mars
Amber Gullikson, Ryan Anderson, Rebecca M.E. Williams
2023, Icarus (394)
Sinuous ridges are an important yet understudied component of Mars' hydrologic history. We have produced a map of sinuous ridges, valleys and channels, and tectonic ridges across southeastern Terra Sabaea and into northern Hellas Planitia (10°-45° S, 35°-80° E) using a CTX mosaic. Although we mapped different types of...
Effects of structure and volcanic stratigraphy on groundwater and surface water flow: Hat Creek basin, California, USA
Marina Francesca Marcelli, Erick R. Burns, L. J. Patrick Muffler, Andrew J Meigs, Jennifer A. Curtis, Christian E. Torgersen
2023, Hydrogeology Journal (31) 219-240
Hydrogeologic systems in the southern Cascade Range in California (USA) develop in volcanic rocks where morphology, stratigraphy, extensional structures, and attendant basin geometry play a central role in groundwater flow paths, groundwater/surface-water interactions, and spring discharge locations. High-volume springs (greater than 3 m3/s) flow from basin-filling...
Disentangling direct and indirect effects of extreme events on coastal wetland communities
Courtney L. Davis, Susan Walls, William Barichivich, Mary Brown, David A.W. Miller
2023, Journal of Animal Ecology (92)
One of the primary ways in which climate change will impact coastal freshwater wetlands is through changes in the frequency, intensity, timing and distribution of extreme weather events. Disentangling the direct and indirect mechanisms of population- and community-level responses to extreme events is vital to predicting how species composition...
Understanding and modeling tephra transport: Lessons learned from the 18 May 1980 eruption of Mount St. Helens
Larry G. Mastin, Steven Carey, Alexa R. Van Eaton, Julia Eychenne, R.S.J. Sparks
2023, Bulletin of Volcanology (85)
Discoveries made during the 18 May 1980 eruption of Mount St. Helens advanced our understanding of tephra transport and deposition in fundamental ways. The eruption enabled detailed, quantitative observations of downwind cloud movement and particle sedimentation, along with the dynamics of co-pyroclastic-density current (PDC) clouds lofted...
Habitat utilization, demography, and behavioral observations of the squat lobster, Eumunida picta (Crustacea: Anomura: Eumunididae), on western North Atlantic deep-water coral habitats
Martha S. Nizinski, Jennifer McClain Counts, Steve W. Ross
2023, Deep-Sea Research Part II: Topical Studies in Oceanography (193)
Deep-sea coral habitats, comprising mostly Lophelia pertusa (Linnaeus 1758), are well developed on the upper and middle continental slope off the southeastern United States (SEUS). These habitats support a diverse and abundant invertebrate fauna, yet ecology and biology of most of these species are poorly known. Ten cruises conducted off the SEUS...
A large new crater exposes the limits of water ice on Mars
Colin M. Dundas, Michael T. Mellon, Liliya V Posiolova, Katarina Miljkovic, Gareth S Collins, Livio L. Tornabene, Vidhya Ganesh Rangarajan, Matthew P. Golombek, Nicholas H. Warner, Ingrid J. Daubar, Shane Byrne, Alfred S. McEwen, Kimberly D. Seelos, Donna Viola, Ali M Bramson, Gunnar Speth
2023, Geophysical Research Letters (50)
Water ice in the Martian mid-latitudes has advanced and retreated in response to variations in the planet's orbit, obliquity, and climate. A 150 m-diameter new impact crater near 35°N provides the lowest-latitude impact exposure of subsurface ice on Mars. This is the largest known ice-exposing crater and provides key constraints on...
Seasonal resource selection and movement ecology of free-ranging horses in the western United States
Kathryn A. Schoenecker, Saeideh Esmaelli, Sarah R. B. King
2023, Journal of Wildlife Management (87)
Understanding factors driving resource selection and habitat use of different species is an important component of management and conservation. Feral horses (Equus caballus) are free ranging across various vegetation types in the western United States, yet few studies have quantified their resource selection and...
Quantifying connectivity and its effects on sediment budgeting for an agricultural basin, Chesapeake Bay Watershed, United States
Zachary Clifton, Allen C. Gellis, Matthew Joseph Cashman, Michelle Patricia Katoski, Lucas A Nibert, Gregory Noe
2023, Hydrological Processes (36)
Excessive sediment runoff as a result of anthropogenic activities is a major concern for watershed ecologic health. This study sought to determine the sources, storage, and delivery of sediment using a sediment budget approach for the predominantly pasture and forested Smith Creek watershed, Virginia United States,...
A complex record of last interglacial sea-level history and paleozoogeography, Santa Rosa Island, Channel Islands National Park, California, USA
Daniel R. Muhs, Lindsey T. Groves, Kathleen R. Simmons, R. Randall Schumann, Scott A. Minor
2023, Palaeogeography, Palaeoclimatology, Palaeoecology (610)
Studies of marine terraces and their fossils can yield important information about sea level history, tectonic uplift rates, and paleozoogeography, but some aspects of terrace history, particularly with regard to their fossil record, are not clearly understood. Marine terraces are well...
Efficacy of bear spray as a deterrent against polar bears
James Wilder, Lindsey Mangipane, Todd C. Atwood, Anatoly A. Kochnev, Tom Smith, Dag Vongraven
2023, Wildlife Society Bulletin (47)
Although there have been few attempts to systematically analyze information on the use of deterrents on polar bears (Ursus maritimus), understanding their effectiveness in mitigating human-polar bear conflicts is critical to ensuring both human safety and polar bear conservation. To fill this knowledge gap, we analyzed...
Optimizing surveys of fall-staging geese using aerial imagery and automated counting
Emily L. Weiser, Paul L. Flint, Dennis K Marks, Brad S Shults, Heather M. Wilson, Sarah J. Thompson, Julian B. Fischer
2023, Wildlife Society Bulletin (47)
Ocular aerial surveys allow efficient coverage of large areas and can be used to monitor abundance and distribution of wild populations. However, uncertainty around resulting population estimates can be large due to difficulty in visually identifying and counting animals from aircraft, as well as logistical challenges in estimating detection probabilities....
Estimates of k0 and effects on ground motions in the San Francisco Bay area
Tara Nye, Valerie J. Sahakian, Elias King, Annemarie S. Baltay, Alexis Klimasewski
2023, Bulletin of the Seismological Society of America (113) 823-842
Ground‐motion studies are a key component of seismic hazard analyses and often rely on information of the source, path, and site. Extensive research has been done on each of these parameters; however, site‐specific studies are of particular interest to seismic hazard studies, especially in the field of earthquake engineering, as...
A regionally varying habitat model to inform management for greater sage-grouse persistence across their range
Gregory T. Wann, Nathan D. Van Schmidt, Jessica E. Shyvers, Bryan C. Tarbox, Megan M. McLachlan, Michael O'Donnell, Anthony J Titolo, Peter S. Coates, David R. Edmunds, Julie A. Heinrichs, Adrian P. Monroe, Cameron L. Aldridge
2023, Global Ecology and Conservation (41)
Identifying habitat needs for species with large distributions is challenging because species-habitat associations may vary across scales and regions (spatial nonstationarity). Furthermore, management efforts often cross jurisdictional boundaries, complicating the development of cohesive conservation strategies among management entities. The greater sage-grouse...
Precaldera mafic magmatism at Long Valley, California: Magma-tectonic siting and incubation of the Great Rhyolite System
Edward Hildreth, Judith E. Fierstein, Andrew T. Calvert
2023, Journal of Volcanology and Geothermal Research (433)
The iconic volcanic center at Long Valley has released ∼820 km3 of rhyolite in at least 110 eruptions. From 2.2 Ma until 0.23 Ma, products were exclusively rhyolitic, and ∼ 700 km3 were high-silica rhyolite severely depleted in Sr, Ba, and Eu. The rhyolitic interval was preceded by an interval from 3.9 to 2.6 Ma with numerous basalt-andesite-dacite...
