Evaluating the potential for efficient, UAS-based reach-scale mapping of river channel bathymetry from multispectral images
Carl J. Legleiter, Lee R. Harrison
2024, Frontiers in Remote Sensing (5)
Introduction: Information on spatial patterns of water depth in river channels is valuable for numerous applications, but such data can be difficult to obtain via traditional field methods. Ongoing developments in remote sensing technology have enabled various image-based approaches for mapping river bathymetry; this study evaluated the potential to retrieve...
Apparent non-double-couple components as artifacts of moment tensor inversion
Boris Rosler, Seth Stein, Adam T. Ringler, Jiri Vackar
2024, Seismica (3)
Compilations of earthquake moment tensors from global and regional catalogs find pervasive non-double-couple (NDC) components with a mean deviation from a double-couple (DC) source of around 20%. Their distributions vary only slightly with magnitude, faulting mechanism, or geologic environments. This consistency suggests that for most earthquakes, especially smaller ones whose...
Deep learning workflow to support in-flight processing of digital aerial imagery for wildlife population surveys
Tsung-Wei Ke, Stella X Yu, Mark D. Koneff, David L. Fronczak, Luke J. Fara, Travis Harrison, Kyle Lawrence Landolt, Enrika Hlavacek, Brian R. Lubinski, Timothy White
2024, PLoS ONE (19)
Deep learning shows promise for automating detection and classification of wildlife from digital aerial imagery to support cost-efficient remote sensing solutions for wildlife population monitoring. To support in-flight orthorectification and machine learning processing to detect and classify wildlife from imagery in near real-time, we evaluated deep learning methods that address...
Identifying an understudied interface: Preliminary evaluation of the use of retention ponds on commercial poultry farms by wild waterfowl
Jeffery D. Sullivan, Ayla McDonough, Lauren Lescure, Diann Prosser
2024, Transboundary and Emerging Diseases (2024)
While the recent incursion of highly pathogenic avian influenza into North America has resulted in notable losses to the commercial poultry industry, the mechanism by which virus enters commercial poultry houses is still not understood. One theorized mechanism is that waterfowl shed virus into the environment surrounding poultry farms, such...
The potential influence of genome-wide adaptive divergence on conservation translocation outcome in an isolated greater sage-grouse population
Shawna J Zimmerman, Cameron L. Aldridge, Michael A Schroeder, Jennifer A. Fike, Robert S. Cornman, Sara J. Oyler-McCance
2024, Conservation Biology (38)
Conservation translocations are an important conservation tool commonly employed to augment declining or reestablish extirpated populations. One goal of augmentation is to increase genetic diversity and reduce the risk of inbreeding depression (i.e., genetic rescue). However, introducing individuals from significantly diverged populations risks disrupting coadapted traits and...
Comparing modern identification methods for wild bees: Metabarcoding and image-based morphological taxonomic assignment
Cassandra Smith, Robert S. Cornman, Jennifer A. Fike, Johanna M. Kraus, Sara J. Oyler-McCance, Carrie E. Givens, Michelle L. Hladik, Mark W. Vandever, Dana W. Kolpin, Kelly Smalling
2024, PLoS ONE (19)
With the decline of bee populations worldwide, studies determining current wild bee distributions and diversity are increasingly important. Wild bee identification is often completed by experienced taxonomists or by genetic analysis. The current study was designed to compare two methods of identification including: (1) morphological identification...
Nontarget effects of pre-emergent herbicides and a bioherbicide on soil resources, processes, and communities
Brynne E. Lazarus, Matthew J. Germino, Marie-Anne de Graaff
2024, Restoration Ecology (32)
Community-type conversions, such as replacement of perennials by exotic annual grasses in semiarid desert communities, are occurring due to plant invasions that often create positive plant–soil feedbacks, which favor invaders and make restoration of native perennials difficult. Exotic annual grass control measures, such as...
Serologic survey of selected arthropod-borne pathogens in free-ranging snowshoe hares (Lepus americanus) captured in Northern Michigan, USA
Erik K. Hofmeister, Eric Clark, Melissa Lund, Daniel A. Grear
2024, Journal of Wildlife Diseases (60) 375-387
Snowshoe hares (Lepus americanus) in the Upper Peninsula (UP) of Michigan, USA, occupy the southern periphery of the species' range and are vulnerable to climate change. In the eastern UP, hares are isolated by the Great Lakes, potentially exacerbating exposure to climate-change-induced habitat alterations. Climate change is also measurably affecting...
A Robot Operating System (ROS) package for mapping flow fields in rivers via Particle Image Velocimetry (PIV)
Carl J. Legleiter, Michael Dille
2024, Software X (26)
Non-contact, remote sensing approaches to measuring flow velocities in river channels are widely used, but typical workflows involve acquiring images in the field and then processing data later in the office. To reduce latency between acquisition and output, with the ultimate goal of enabling real-time image velocimetry, we developed a...
Cross-scale analysis reveals interacting predictors of annual and perennial cover in Northern Great Basin rangelands
Madelon Florence Case, Kirk W. Davies, Chad S. Boyd, Lina Aoyama, Joanna Merson, Calvin Penkauskas, Lauren M. Hallett
2024, Ecological Applications (0)
Exotic annual grass invasion is a widespread threat to the integrity of sagebrush ecosystems in Western North America. Although many predictors of annual grass prevalence and native perennial vegetation have been identified, there remains substantial uncertainty about how regional-scale and local-scale predictors interact to...
The roles of diet and habitat use in pesticide bioaccumulation by juvenile Chinook Salmon: Insights from stable isotopes and fatty acid biomarkers
Sara E. Anzalone, Neil W. Fuller, Kara E. Huff Hartz, Gregory W. Whitledge, Jason Tyler Magnuson, Daniel Schlenk, Shawn Acuña, Matt R. Whiles, Michael J. Lydy
2024, Archives of Environmental Contamination and Toxicology (86) 234-248
Stable isotopes (SI) and fatty acid (FA) biomarkers can provide insights regarding trophic pathways and habitats associated with contaminant bioaccumulation. We assessed relationships between SI and FA biomarkers and published data on concentrations of two pesticides [dichlorodiphenyltrichloroethane and degradation products (DDX) and bifenthrin] in juvenile Chinook...
Numerical modeling of debris flows: A conceptual assessment
Richard M. Iverson, David L. George
2024, Book chapter, Advances in Debris-flow Science and Practice
Real-world hazard evaluation poses many challenges for the development and application of numerical models of debris flows. In this chapter we provide a conceptual overview of physically based, depth-averaged models designed to simulate debris-flow motion across three-dimensional terrain. When judiciously formulated and applied, these models can...
Exploring and integrating differences in niche characteristics across regional and global scales to better understand plant invasions in Hawaiʻi
Lucas Berio Fortini, Lauren R. Kaiser, Curtis Daehler, James D. Jacobi, Monica Dimson, Thomas W Gillespie
2024, Biological Invasions (26) 1827-1843
The spread of ecosystem modifying invasive plant (EMIP) species is one of the largest threats to native ecosystems in Hawaiʻi. However, differences in niche characteristics between Hawaiʻi’s isolated insular environment and the wider global distribution of these species have not been carefully examined. We used species distribution modeling (SDM) methods...
Seismic attenuation and stress on the San Andreas Fault at Parkfield: Are we critical yet?
Luca Malagnini, Robert M. Nadeau, Thomas E. Parsons
2024, Frontiers in Earth Science (12)
The Parkfield transitional segment of the San Andreas Fault (SAF) is characterized by the production of frequent quasi-periodical M6 events that break the very same asperity. The last Parkfield mainshock occurred on 28 September 2004, 38 years after the 1966 earthquake, and after the segment showed a ∼22 years average...
Improved efficient physics-based computational modeling of regional wave-driven coastal flooding for reef-lined coastlines
Camila Gaido-Lassarre, Kees Nederhoff, Curt D. Storlazzi, Borja Reguero, Michael W. Beck
2024, Journal of Marine Science & Engineering (198)
Coastal flooding affects low-lying communities worldwide and is expected to increase with climate change, especially along reef-lined coasts, where wave-driven flooding is particularly prevalent. However, current regional modeling approaches are either insufficient or too computationally expensive to accurately assess risks in...
Composite estimation to combine spatially overlapping environmental monitoring surveys
Steven Garman, Cindy L. Yu, Yuyang Li
2024, PLoS ONE (19)
Long-term environmental monitoring surveys are designed to achieve a desired precision (measured by variance) of resource conditions based on natural variability information. Over time, increases in resource variability and in data use to address issues focused on small areas with limited sample sizes require bolstering of...
Inoculated biocrust cover and functions diverged over a gradient of soil textures and water availability
Kristina E. Young, Sasha C. Reed, Michael Morton, Matthew A. Bowker
2024, Restoration Ecology (32)
Restoring biological crust (biocrust) in disturbed drylands is challenging due to the difficult environmental conditions, such as limited soil moisture, low soil nutrients, and extreme temperatures, that impede growth. Understanding how the key components of biocrust—mosses, lichens, and cyanobacteria—react to different environmental factors informs...
Novel insights about petroleum systems from source and reservoir rock characterization, Cretaceous Deposits, Babouri-Figuil Basin, Northern Cameroon
Manga Gaspard, Javin J. Hatcherian, Paul C. Hackley, Moise Bessong, Carole Bapowa, Henry Pougue, Arsene Meying
2024, International Journal of Coal Geology (285)
The Babouri-Figuil Basin (BFB) is a frontier basin for petroleum in Cameroon. It belongs to the series of Cretaceous rift basins of the West and Central Rift System (WCARS), the origin of which is related to the opening of the South Atlantic. Within the same rift system, commercial hydrocarbon accumulations...
Managing ecosystems with resist-accept-direct (RAD)
Byron K. Williams, Ellie Brown
2024, Methods in Ecology and Evolution (15) 796-805
In recent years considerable interest has been generated in a new approach known as resist–accept–direct, or RAD, for managing ecosystems in the face of climate change. Under RAD, strategic responses to climate change are described in terms of three broad categories: resisting climate transformation, accepting the transformation and continuing to...
Invasive-dominated grasslands in Hawaiʻi are resilient to disturbance
Stephanie G. Yelenik, Eli T. Rose, Susan Cordell
2024, Ecology and Evolution (14)
Non-native-dominated landscapes may arise from invasion by competitive plant species, disturbance and invasion of early-colonizing species, or some combination of these. Without knowing site history, however, it is difficult to predict how native or non-native communities will reassemble after disturbance events. Given increasing disturbance...
Comparison of sediment and water column nutrient processing rates in agricultural streams of contrasting buffer land use
James H. Larson, Sean Bailey, Rebecca M. Kreiling, Lynn A. Bartsch, Paul C. Frost, Marguerite A. Xenopoulos, Nolan J.T. Pearce, Mary Anne Evans
2024, Ecosphere (15)
Watershed nutrient management often focuses on actions that reduce the movement of nitrogen (N) and phosphorus (P) from agricultural lands into streams. One area of management focus is the buffer of land adjacent to streams. Wetlands and forests in this buffer can intercept and...
All tidal wetlands are blue carbon ecosystems
Maria Fernanda Adame, Jeffrey Kelleway, Ken Krauss, Catherine E. Lovelock, Janine B. Adams, Stacey M. Trevathan-Tackett, Gregory E. Noe, Luke Jeffrey, Mike Ronan, Maria Zann, Paul E. Carnell, Naima Iram, Damien T. Maher, Daniel Murdiyarso, Sigit D. Sasmito, Da B. Tran, Paul Dargusch, J. Boone Kauffman, Laura S. Brophy
2024, BioScience
Managing coastal wetlands is one of the most promising activities to reduce atmospheric greenhouse gases, and it also contributes to meeting the United Nations Sustainable Development Goals. One of the options is through blue carbon projects, in which mangroves, saltmarshes, and seagrass are managed to increase carbon sequestration and...
Flood of October 31 to November 3, 2019, East Canada Creek, West Canada Creek, and Sacandaga River Basins
Alexander P. Graziano, Travis L. Smith, Arthur G. Lilienthal III
2024, Conference Paper, Proceedings of the 2024 Mohawk Watershed Symposium
Between October 31 and November 3, 2019, historic flooding in parts of the Mohawk Valley and southern Adirondack region resulted in one fatality, an estimated $33 million in damages, and the declaration of a state of emergency for 13 New York counties. Flooding resulted from high-intensity rainfall within a 24-hour...
Yosemite toad (Anaxyrus canorus) transcriptome reveals interplay between speciation genes and adaptive introgression
Paul A. Maier, Amy G. Vandergast, Andrew J. Bohonak
2024, Molecular Ecology (33)
Genomes are heterogeneous during the early stages of speciation, with small ‘islands’ of DNA appearing to reflect strong adaptive differences, surrounded by vast seas of relative homogeneity. As species diverge, secondary contact zones between them can act as an interface and selectively filter through...
Implications for the resilience of modern coastal systems derived from mesoscale barrier dynamics at Fire Island, New York
Daniel J. Ciarletta, Jennifer L. Miselis, Julie Bernier, Arnell S. Forde
2024, Earth Surface Dynamics (12) 449-475
Understanding the response of coastal barriers to future changes in rates of sea level rise, sediment availability, and storm intensity/frequency is essential for coastal planning, including socioeconomic and ecological management. Identifying drivers of past changes in barrier morphology, as well as barrier sensitivity to...
