Animal tracing with sulfur isotopes: Spatial segregation and climate variability in Africa likely contribute to population trends of a migratory songbird
Vojtech Brlik, Petr Prochazka, Bengt Hansson, Craig A. Stricker, Elizabeth Yohannes, Rebecca L Powell, Michael B. Wunder
2023, Journal of Animal Ecology (92) 1320-1331
Climatic conditions affect animals but range-wide impacts at the population level remain largely unknown, especially in migratory species. However, studying climate–population relationships is still challenging in small migrants due to a lack of efficient and cost-effective geographic tracking method.Spatial distribution patterns of environmental stable isotopes (so called ‘isoscapes’) generally...
Rotenone induces mortality of invasive Lake Trout and Rainbow Trout embryos
Alex S. Poole, Todd M. Koel, Alexander V. Zale, Molly A. H. Webb
2023, Transactions of the American Fisheries Society (152) 3-14
ObjectiveNonnative fish, including Lake Trout Salvelinus namaycush and Rainbow Trout Oncorhynchus mykiss, are actively invading lakes and streams and threatening Cutthroat Trout O. clarkii and other native species in the western United States. Programs have been implemented to suppress invasive trout using netting, trapping, electrofishing, angling, or other traditional...
Species and physiographic factors drive Indian cucumber root and Canada mayflower plant chemistry: Implications for white-tailed deer forage quality
Nico Navarro, Duane R. Diefenbach, Marc E. McDill, Emily Just Domoto, Christopher S. Rosenberry, Patrick J. Drohan
2023, Journal of Environmental Management (326)
Nutrition is fundamental to white-tailed deer (Odocoileus virginianus) management given its relationship to habitat carrying capacity and population productivity. Ecological Sites (ESs) are a United States federal landscape management unit of specific land potential due to unique soils, topography, climate, parent material, and perhaps deer forage nutritional value. We present results of...
High‐precision characterization of seismicity from the 2022 Hunga Tonga‐Hunga Ha'apai volcanic eruption
Jonas A. Kintner, William L. Yeck, Paul S. Earle, Stephanie Prejean, Jeremy Pesicek
2023, Seismological Research Letters (94) 589-602
The earthquake swarm accompanying the January 2022 Hunga Tonga‐Hunga Ha'apai (HTHH) volcanic eruption includes a large number of posteruptive moderate‐magnitude seismic events and presents a unique opportunity to use remote monitoring methods to characterize and compare seismic activity with other historical caldera‐forming eruptions. We compute improved epicentroid locations, magnitudes, and...
Evaluations of Lagrangian egg drift models: From a laboratory flume to large channelized rivers
Geng Li, Caroline M. Elliott, Bruce Call, Duane Chapman, Robert B. Jacobson, Bin Wang
2023, Ecological Modelling (475)
To help better interpret computational models in predicting drift of carp eggs in rivers, we present a series of model assessments for the longitudinal egg dispersion. Two three-dimensional Lagrangian particle tracking models, SDrift and FluEgg, are evaluated in a series of channels with increasing complexity. The model evaluation demonstrates that...
A practical guide to understanding and validating complex models using data simulations
Graziella Vittoria DiRenzo, Ephraim Hanks, David A. W. Miller
2023, Methods in Ecology and Evolution (14) 203-217
Biologists routinely fit novel and complex statistical models to push the limits of our understanding. Examples include, but are not limited to, flexible Bayesian approaches (e.g. BUGS, stan), frequentist and likelihood-based approaches (e.g. packages lme4) and machine learning methods.These software and programs afford the user greater control and flexibility...
Spatial and temporal patterns in Arctic mosquito abundance
Melissa H DeSiervo, Rebecca A Finger-Higgens, Matthew P. Ayres, Ross A Virginia, Lauren E Culler
2023, Ecological Applications (48) 19-30
Organisms that undergo a shift in ontogeny and habitat type often change their spatial distribution throughout their life cycle, but how this affects population dynamics remains poorly understood.We examined spatial and temporal patterns in Aedes nigripes abundance, a widespread univoltine Arctic mosquito species (Diptera: Culicidae), hypothesizing that the spatial distribution of...
A review of supervised learning methods for classifying animal behavioural states from environmental features
Silas Bergen, Manuela Huso, Adam E. Duerr, Missy A Braham, Sara Schmuecker, Tricia A. Miller, Todd E. Katzner
2023, Methods in Ecology and Evolution (14) 189-202
Accurately predicting behavioural modes of animals in response to environmental features is important for ecology and conservation. Supervised learning (SL) methods are increasingly common in animal movement ecology for classifying behavioural modes. However, few examples exist of applying SL to classify polytomous animal behaviour from environmental...
Rupture scenarios for the 3 June 1770 Haiti earthquake
Susan E. Hough, Stacey S. Martin, Steeve Symithe, Richard W. Briggs
2023, Bulletin of the Seismological Society of America (113) 157-185
The 2010 M 7.0 Haiti earthquake provided the impetus to reconsider historical earthquakes in Hispaniola (Bakun et al., 2012). That earthquake also shed new light on complex fault systems along Haiti’s southern peninsula (Douilly et al., 2013; Saint Fleur et al., 2015). Recently, the 2021 M 7.2 Nippes earthquake...
Life-cycle model reveals sensitive life stages and evaluates recovery options for a dwindling Pacific salmon population
Neala W. Kendall, Julia R. Unrein, Carol Volk, David Beauchamp, Kurt L. Fresh, Thomas P. Quinn
2023, North American Journal of Fisheries Management (43) 203-230
Population models, using empirical survival rates estimates for different life stages, can help managers explore whether various management options could stabilize a declining population or restore it to former levels of abundance. Here we used two decades of...
An interactive viewer to improve operational aftershock forecasts
Gabrielle Madison Paris, Andrew J. Michael
2023, Seismological Research Letters (94) 473-484
The U.S. Geological Survey (USGS) issues forecasts for aftershocks about 20 minutes after most earthquakes above M 5 in the United States and its territories, and updates these forecasts 75 times during the first year. Most of the forecasts are issued automatically, but some forecasts require manual intervention to maintain accuracy. It...
Habitat associations of riverine fishes among rocky shoals
Anna Y. Baynes, Mary Freeman, S. Kyle McKay, Seth J. Wenger
2023, Ecology of Freshwater Fish (32) 336-347
Understanding species' associations with physical habitat conditions is a fundamental goal of ecology. For organisms that occupy lotic ecosystems, relationships to streamflow are of particular importance, but these associations are unstudied for most species. We tested the predictability of fish–microhabitat relationships in river shoals (shallow, rocky...
High resolution spatiotemporal patterns of flow at the landscape scale in montane non-perennial streams
Romy Sabathier, Michael Bliss Singer, John C Stella, Dar A. Roberts, Kelly K. Caylor, Kristin Jaeger, Julian Olden
2023, River Research and Applications (39) 225-240
Intermittent and ephemeral streams in dryland environments support diverse assemblages of aquatic and terrestrial life. Understanding when and where water flows provide insights into the availability of water, its response to external controlling factors, and potential sensitivity to climate change and a host of human activities....
Estrogenic activity response to best management practice implementation in agricultural watersheds in the Chesapeake Bay watershed
Stephanie E. Gordon, Tyler Wagner, Kelly L. Smalling, Olivia H. Devereux
2023, Journal of Environmental Management (326)
Best management practices (BMPs) have been predominantly used throughout the Chesapeake Bay watershed (CBW) to reduce nutrients and sediments entering streams, rivers, and the bay. These practices have been successful in reducing loads entering the estuary and have shown the potential to reduce other...
Attitudes of the Wildlife Society members toward uses of wildlife
Rachel Menale, Shawn J. Riley, John F. Organ
2023, Article
Large-scale sociological, geographic, and demographic changes affect the way people interact with and value wildlife. Beliefs and attitudes of stakeholders towards wildlife and uses of wildlife are also shifting along with these geographical and demographic changes. Changes in societal or professional attitudes toward uses of wildlife has potential to create...
The effect of scent lures on detection is not equitable among sympatric species
Marlin M. Dart, Lora B. Perkins, Jonathan A. Jenks, Gary Hatfield, Robert Charles Lonsinger
2023, Wildlife Research (50) 190-200
Context: Camera trapping is an effective tool for cost-efficient monitoring of species over large temporal and spatial scales and it is becoming an increasingly popular method for investigating wildlife communities and trophic interactions. However, camera trapping targeting rare and elusive species can be hampered by low detection rates, which can decrease...
Geochemistry of the Cretaceous Mowry Shale in the Wind River Basin, Wyoming
Katherine L. French, Justin E. Birdwell, Paul G. Lillis
2023, GSA Bulletin (135) 1899-1922
The siliceous nature of the Mowry Shale distinguishes it from many of the well-studied organic-rich mudstones of the Cretaceous Western Interior Seaway. Available models of organic enrichment in mudstones rarely incorporate detailed biomarker, bulk organic, inorganic, and mineralogy data. Here, we used these data to evaluate how variations in organic...
Ecologically relevant moisture and temperature metrics for assessing dryland ecosystem dynamics
D. A. Chenoweth, Daniel Rodolphe Schlaepfer, J. C. Chambers, J. L. Brown, A. K. Urza, Brice Hanberry, D. Board, M. Crist, John B. Bradford
2023, Ecohydrology (16)
In drylands, water-limited regions that cover ~40% of the global land surface, ecosystems are primarily controlled by access to soil moisture and exposure to simultaneously hot and dry conditions. Quantifying ecologically relevant environmental metrics is difficult in drylands because the response of vegetation to moisture and...
Deep learning for pockmark detection: Implications for quantitative seafloor characterization
Mark Lundine, Laura L. Brothers, Arthur Trembanis
2023, Geomorphology (421)
Occurring globally, pockmarks are seafloor depressions associated with seabed fluid escape. Pockmark ubiquity and morphologic heterogeneity result in an irregular seafloor that can be difficult to quantitatively describe. To address this challenge, we test the hypothesis that deep-learning based object detection and segmentation can...
Dispersal limitations increase vulnerability under climate change for reptiles and amphibians in the southwestern United States
Richard D. Inman, Todd Esque, Kenneth E. Nussear
2023, Journal of Wildlife Management (87)
Species conservation plans frequently rely on information that spans political and administrative boundaries, especially when predictions are needed of future habitat under climate change; however, most species conservation plans and their requisite predictions of future habitat are often limited in geographical scope. Moreover, dispersal constraints for...
Biophysical warming patterns of an open-top chamber and its short-term influence on a Phragmites wetland ecosystem in China
Xue-yang Yu, Si-yuan Ye, Li-xin Pei, Liu-juan Xie, Ken Krauss, Samantha K. Chapman, Hans Brix
2023, China Geology (6) 594-610
Passive-warming, open-top chambers (OTCs) are widely applied for studying the effects of future climate warming on coastal wetlands. In this study, a set of six OTCs were established at a Phragmites wetland located in the Yellow River Delta of Dongying City, China. With data collected through online transmission and in-situ sensors, the attributes and...
Drought related changes in water quality surpass effects of experimental flows on trout growth downstream of Lake Powell reservoir
Josh Korman, Bridget Deemer, Charles Yackulic, Theodore Kennedy, Mariah Aurelia Giardina
2023, Canadian Journal of Fisheries and Aquatic Sciences (80) 424-438
Flows released from reservoirs are often modified to mitigate the negative ecosystem effects of dams. We estimated the effects of two experimental flows, fall-timed floods and elimination of sub-daily variation in flows on weekends, on growth rates of rainbow trout (Oncorhynchus mykiss) in the Colorado River downstream...
Integrated assessment of chemical and biological recovery after diversion and treatment of acid mine drainage in a Rocky Mountain stream
Christopher James Kotalik, Joseph S. Meyer, Pete Cadmus, James F. Ranville, William H. Clements
2023, Environmental Toxicology and Chemistry (42) 512-524
Responses of stream ecosystems to gradual reductions in metal loading following remediation or restoration activities have been well documented in the literature. However, much less is known about how these systems respond to the immediate or more rapid elimination of metal inputs. Construction of a water...
Spatial patterns and seasonal timing of increasing riverine specific conductance from 1998 to 2018 suggest legacy contamination in the Delaware River Basin
Christine Rumsey, John C. Hammond, Jennifer C. Murphy, Megan E. Shoda, Alexander M. Soroka
2023, Science of the Total Environment (858)
Increasing salinization of freshwater threatens water supplies that support a range of human and ecological uses. The latest assessments of Delaware River Basin (DRB) surface-water-quality changes indicate widespread salinization has occurred in recent decades, which may lead to meaningful degradation in water quality. To better understand how and when salinity...
First principles calibration of 40Ar abundances in 40Ar/39Ar mineral neutron fluence monitors: Methodology and preliminary results
Leah E. Morgan, Brett Davidheiser-Kroll, Klaudia F. Kuiper, Darren F. Mark, Noah M. McLean, Jan Wijbrans
2023, Geostandards and Geoanalytical Research (47) 91-104
The accuracy and traceability of geochronometers are of vital importance to questions asked by many Earth scientists. The widely applied 40Ar/39Ar geochronometer relies on the co-irradiation of samples with neutron fluence monitors (reference materials) of known ages; the ages and uncertainties of these monitors are critical to our ability to apply...
