Incorporating temperature into seepage loss estimates for a large unlined irrigation canal
Ramon C. Naranjo, David Smith, Evan J. Lindenbach
2023, Journal of Hydrology (617)
Quantifying seepage losses from unlined irrigation canals is necessary to improve water use and conservation. The use of heat as a tracer is widely used in quantifying seepage rates across the sediment–water interface. In this study, field observations and two-dimensional numerical models...
Comparison of traditional and geometric morphometrics using Lake Huron ciscoes of the Coregonus artedi complex
Benjamin E Martin, Brian O’Malley, Randy E Eshenroder, Yu-Chun Kao, Chris Olds, Timothy P. O’Brien, Chris L. Davis
2023, Transactions of the American Fisheries Society (152) 296-309
Here we determine how traditional morphometrics (TM) compares with geometric morphometrics (GM) in discriminating among morphologies of four forms of ciscoes of the Coregonus artedi complex collected from Lake Huron. One of the forms comprised two groups of the same deepwater cisco separated by capture depth, whereas the...
Beyond presence mapping: Predicting fractional cover of non-native vegetation in Sentinel-2 imagery using an ensemble of MaxEnt models
Todd M. Preston, Aaron N. Johnston, Kyle Gregory Ebenhoch, Robert H. Diehl
2023, Remote Sensing in Ecology and Conservation (9) 512-526
Non-native species maps are important tools for understanding and managing biological invasions. We demonstrate a novel approach to extend presence modeling to map fractional cover (FC) of non-native yellow sweet clover Melilotus officinalis in the Northern Great Plains, USA. We used ensembles of MaxEnt models to map FC across landscapes from satellite...
Moving Aircraft River Velocimetry (MARV): Framework and proof-of-concept on the Tanana River
Carl J. Legleiter, Paul J. Kinzel, Mark Laker, Jeff Conaway
2023, Water Resources Research (59)
Information on velocity fields in rivers is critical for designing infrastructure, modeling contaminant transport, and assessing habitat. Although non-contact approaches to measuring flow velocity are well established, these methods assume a stationary imaging platform. This study eliminates this constraint by introducing a framework for moving aircraft river...
The San Francisco Estuary, USA as a reference section for an Anthropocene series
Stephen J Himson, Mark Williams, Jan Zalasiewicz, Colin N. Waters, Mary McGann, Richard England, Bruce E. Jaffe, Arnoud Boom, Rachael Holmes, Sue Sampson, Cerin Pye, Juan Carlos Berrio, Genevieve Tyrrell, Ian P. Wilkinson, Neil Rose, Pawel Gaca, Andrew Cundy
2023, The Anthropocene Review (10) 87-115
A San Francisco Estuary core was analysed at high resolution to assess its component stratigraphic signatures of the Anthropocene in the form of non-native species, Hg, spheroidal carbonaceous particles, δ13Corg, δ15N, radiogenic materials, and heavy metals. Time series analysis of the core using Ti data provides a...
A multimodal data fusion and deep learning framework for large-scale wildfire surface fuel mapping
Mohamad Alipour, Inga P. La Puma, Joshua J. Picotte, Kasra Shamsei, Eric Rowell, Adam Watts, Branko Kosovic, Hamed Ebrahimian, Erugrul Taciroglu
2023, Fire (6)
Accurate estimation of fuels is essential for wildland fire simulations as well as decision-making related to land management. Numerous research efforts have leveraged remote sensing and machine learning for classifying land cover and mapping forest vegetation species. In most cases that focused on surface fuel mapping, the spatial scale...
Juxtaposition of intensive agriculture, vulnerable aquifers, and mixed chemical/microbial exposures in private-well tapwater in northeast Iowa
Paul M. Bradley, Dana W. Kolpin, Darrin A. Thompson, Kristin M. Romanok, Kelly L. Smalling, Sara E. Breitmeyer, Mary C. Cardon, David M. Cwiertny, Nicola Evans, R. William Field, Michael J. Focazio, Laura E. Beane Freeman, Carrie E. Givens, James L. Gray, Gordon L. Hager, Michelle L. Hladik, Jonathan N. Hoffman, Rena R. Jones, Leslie K. Kanagy, Rachael F. Lane, R. Blaine McCleskey, Danielle Medgyesi, Elizabeth Medlock-Kakaley, Shannon M. Meppelink, Michael T. Meyer, Diana A. Stavreva, Mary H. Ward
2023, Environmental Science and Technology: Water (868)
In the United States and globally, contaminant exposure in unregulated private-well point-of-use tapwater (TW) is a recognized public-health data gap and an obstacle to both risk-management and homeowner decision making. To help address the lack of data on broad contaminant exposures in private-well TW...
Subaqueous clinoforms created by sandy wave-supported gravity flows: Lessons from the central California shelf
Elisa Medri, Alexander R. Simms, Jared W. Kluesner, Samuel Y. Johnson, Stuart P. Nishenko, H. Gary Greene, James E. Conrad
2023, Marine Geology (456)
Subaqueous clinoforms are an important yet underappreciated shelf feature. Their origins are typically associated with subaerial deltas but recent work has identified similar features in settings without a significant fluvial source. These other studies have shown that such subaqueous clinoforms, also known as infralittoral prograding wedges (IPWs), are created largely...
Hydrodynamics and habitat interact to structure fish communities within terminal channels of a tidal freshwater delta
Brock Huntsman, Matthew J. Young, Frederick V. Feyrer, Paul Stumpner, Larry R. Brown, Jon R. Burau
2023, Ecosphere (14)
Terminal channels were historically a common feature of tidal delta ecosystems but have become increasingly rare as landscapes have been modified. Tidal hydrodynamics are a defining feature in tidal terminal channel ecosystems from which native aquatic communities have evolved. However, few studies have explored the relationship between fish community structure...
Enhancements to population monitoring of Yellowstone grizzly bears
Frank T. van Manen, Michael Ebinger, Cecily M. Costello, Daniel D. Bjornlie, Justin Clapp, Daniel Thompson, Mark A. Haroldson, Kevin L. Frey, Curtis Hendricks, Jeremy M. Nicholson, Kerry A. Gunther, Katharine R. Wilmot, Hilary Cooley, Jennifer Fortin-Noreus, Pat Hnilicka, Daniel B. Tyers
2023, Ursus (33)
In the Greater Yellowstone Ecosystem, counts of female grizzly bears (Ursus arctos) with cubs-of-the-year (females with cubs) from systematic aerial surveys and opportunistic ground sightings are combined with demographic data to derive annual population estimates. We addressed 2 limitations to the monitoring approach. As part of a rule set, a...
Influence of fine-scale habitat characteristics on sage-grouse nest site selection and nest survival varies by mesic and xeric site conditions
Brianne E. Brussee, Peter S. Coates, Shawn T. O’Neil, Mark A. Ricca, Jonathan E. Dudko, Shawn P. Espinosa, Scott C. Gardner, Michael L. Casazza, David J. Delehanty
2023, Ornithological Applications (125)
Resource managers and scientists across western U.S. agencies seek methodologies for identifying environmental attributes important to both wildlife conservation and broad-scale land stewardship. The Greater Sage-Grouse (Centrocercus urophasianus; hereafter, sage-grouse) exemplifies a species in need of this broad-scale approach given widespread population declines that have resulted from loss and...
Changes in habitat suitability for wintering dabbling ducks during dry conditions in the Central Valley of California
Erin E. Conlisk, Kristin B. Byrd, Elliott Matchett, Austen Lorenz, Michael L. Casazza, Gregory H. Golet, Mark D. Reynolds, Kristin A. Sesser, Matthew E. Reiter
2023, Ecosphere (14)
In arid and Mediterranean regions, landscape-scale wetland conservation requires understanding how wildlife responds to dynamic freshwater availability and conservation actions to enhance wetland habitat. Taking advantage of Landsat satellite data and structured and community science bird survey data, we built species distribution models to describe how three duck species, the...
Elevation-based probabilistic mapping of irregularly flooded wetlands along the northern Gulf of Mexico coast
Nicholas Enwright, Wyatt C. Cheney, Kristine O. Evans, Hana R. Thurman, Mark S. Woodrey, Auriel Fournier, Dean B. Gesch, Jonathan L. Pitchford, Jason M. Stoker, Stephen C. Medeiros
2023, Remote Sensing of Environment (287)
Irregularly flooded wetlands are found above the mean high water tidal datum and are exposed to tides and saltwater less frequently than daily. These wetlands provide important ecosystem services, such as providing habitat for fish and wildlife, enhancing water quality, ameliorating...
Hydrogeology, land-surface subsidence, and documentation of the Gulf Coast Land Subsidence and Groundwater-Flow (GULF) model, southeast Texas, 1897–2018
J.H. Ellis, Jacob E. Knight, Jeremy T. White, Michelle Sneed, Joseph D. Hughes, Jason K. Ramage, Christopher L. Braun, Andrew Teeple, Linzy K. Foster, Samuel H. Rendon, Justin T. Brandt
2023, Professional Paper 1877
Executive SummaryAs a part of the Texas Water Development Board groundwater availability modeling program, the U.S. Geological Survey developed the Gulf Coast Land Subsidence and Groundwater-Flow model (hereinafter, the “GULF model”) and ensemble to simulate groundwater flow and land-surface subsidence in the northern part of the Gulf Coast aquifer...
Juvenile life history diversity is associated with lifetime individual heterogeneity in a migratory fish
Mark H. Sorel, Andrew R. Murdoch, Richard W. Zabel, Jeffrey C. Jorgensen, Cory M. Kamphaus, Sarah J. Converse
2023, Ecosphere (14)
Differences in the life history pathways (LHPs) of juvenile animals are often associated with differences in demographic rates in later life stages. For migratory animals, different LHPs often result in animals from the same population occupying distinct habitats subjected to different environmental drivers. Understanding how demographic rates differ among animals...
Recent history of glacial lake outburst floods, analysis of channel changes, and development of a two-dimensional flow and sediment transport model of the Snow River near Seward, Alaska
Robin A. Beebee
2023, Scientific Investigations Report 2022-5099
Snow Lake, a glacially dammed lake on the Snow Glacier near Seward, Alaska, drains rapidly every 14 months–3 years, causing flooding along the Snow River. Highway, railroad, and utility infrastructure on the lower Snow River floodplain is vulnerable to flood damage. Historical hydrology, geomorphology, and two-dimensional hydraulic and sediment transport...
Taxonomic identity, biodiversity, and antecedent disturbances shape the dimensional stability of stream invertebrates
Daniel C Allen, Brian A Gill, Anya Metcalfe, Sophia M Bonjour, Scott Starr, Junna Wang, Diana Valentin, Nancy B. Grimm
2023, Limnology and Oceanography Letters (8) 464-472
The “dimensional stability” approach measures different components of ecological stability to investigate how they are related. Yet, most empirical work has used small-scale and short-term experimental manipulations. Here, we apply this framework to a long-term observational dataset of stream macroinvertebrates sampled between the winter flooding and...
Searching for the Achilles heel(s) for maintaining invertebrate biodiversity across complexes of depressional wetlands
Mateus M. Pires, Patricia E. Garcia, Leonardo Maltchik, Cristina Stenert, Luis B. Epele, Kyle McLean, Jamie M. Kneitel, Sophie Racey, Darold P. Batzer
2023, Journal for Nature Conservation (72)
Wetlands are among the most threatened ecosystems worldwide due to climate change and land-use conversion. Regional biodiversity of temporary wetlands is dependent on the existence of habitat complexes with variable hydroperiods. Because temperature and rainfall regimes are predicted to shift globally, together with land-use patterns, different scenarios of wetland loss are expected in...
“Aftershock Faults” and what they could mean for seismic hazard assessment
Thomas E. Parsons, Eric L. Geist, Sophie E. Parsons
2023, The Seismic Record (3) 1-11
We study stress‐loading mechanisms for the California faults used in rupture forecasts. Stress accumulation drives earthquakes, and that accumulation mechanism governs recurrence. Most moment release in California occurs because of relative motion between the Pacific plate and the Sierra Nevada block; we calculate...
Density effects on native and non-native trout survival in streams
Brock M. Huntsman, Lauren Flynn, Colleen A. Caldwell, Abigail Lynch, Fitsum Abadi
2023, Ecology of Freshwater Fish (32) 464-476
Environmental stressors associated with a changing climate and non-native fish, individually, represent significant threats to native fish conservation. These threats can exacerbate risks to native fishes when conditions interact at the trailing edge of a population's distribution. We collected capture–mark–recapture data for Rio Grande cutthroat...
The detection and attribution of extreme reductions in vegetation growth across the global land surface
Huiping Yang, Seth M. Munson, Chris Huntingford, Nuno Carvalhais, Alan K. Knapp, Xiangyi Li, Josep Penuelas, Jakob Zscheichler, Anping Chen
2023, Global Change Biology (29) 2351-2362
Negative extreme anomalies in vegetation growth (NEGs) usually indicate severely impaired ecosystem services. These NEGs can result from diverse natural and anthropogenic causes, especially climate extremes (CEs). However, the relationship between NEGs and many types of CEs remains largely unknown at regional and global scales. Here,...
National Land Cover Database 2019: A new strategy for creating clean leaf-on and leaf-off Landsat composite images
Suming Jin, Jon Dewitz, Patrick Danielson, Brian Granneman, Catherine Costello, Zhe Zhu
2023, ISPRS Journal of Photogrammetry and Remote Sensing (3)
National Land Cover Database (NLCD) 2019 is a new epoch of national land cover products for the conterminous United States. Image quality is fundamental to the quality of any land cover product. Image preprocessing has often taken a considerable proportion of overall time and effort for this...
Drivers and facilitators of the illegal killing of elephants across 64 African sites
Timothy Kuiper, Res Altwegg, Colin Beale, Thea Carroll, Holy Dublin, Severin Hauenstein, Mrigesh Kshatriya, Carl Schwarz, Chris Thouless, J. Andrew Royle, E.J. Milner-Gulland
2023, Proceedings of the Royal Society B: Biological Sciences (290)
Ivory poaching continues to threaten African elephants. We (1) used criminology theory and literature evidence to generate hypotheses about factors that may drive, facilitate or motivate poaching, (2) identified datasets representing these factors, and (3) tested those factors with strong hypotheses and sufficient data quality for empirical...
Comparison of ventifact orientations and recent wind direction indicators on the floor of Jezero crater, Mars
Kenneth E. Herkenhoff, Rob Sullivan, Claire E Newman, Gerhard Paar, Mariah Baker, Daniel Viudez-Moreiras, James W. Ashley, Andreas Bechtold, Jorge I Nunez
2023, JGR Planets (128)
Wind-abraded rocks and aeolian bedforms have been observed at the Mars 2020 Perseverance landing site, providing evidence for recent and older wind directions. This study reports orientations of aeolian features measured in Perseverance images to infer formative wind directions. It compares these measurements with orbital observations, climate model predictions, and wind...
Modeled production, oxidation, and transport processes of wetland methane emissions in temperate, boreal, and Arctic regions
Masahito Ueyama, Sarah Knox, Kyle B. Delwiche, Sheel Bansal, William J. Riley, Dennis Baldocchi, Takashi Hirano, Gavin McNicol, Karina Schafer, Lisamarie Windham-Myers, Benjamin Poulter, Robert B. Jackson, Kuang-Yu Chang, Jiquan Chen, Housen Chu, Ankur R. Desai, Sebastien Gogo, Hiroki Iwata, Minseok Kang, Ivan Mammarella, Matthias Peichl, Oliver Sonnentag, Eeva-Stiina Tuittila, Youngryel Ryu, Eugenie S. Euskirchen, Mathias Goeckede, Adrien Jacotot, Mats B. Nilsson, Torsten Sachs
2023, Global Change Biology (29) 2313-2334
Wetlands are the largest natural source of methane (CH4) to the atmosphere. The eddy covariance method provides robust measurements of net ecosystem exchange of CH4, but interpreting its spatiotemporal variations is challenging due to the co-occurrence of CH4 production, oxidation, and transport dynamics. Here, we estimate these...
