Increased Population Size of the Federally Endangered Ptychobranchus subtentus in the Wolf River, TN (Fentress and Picket Co.)
Jack Fetters, Amanda E. Rosenberger, Kristin Irwin Womble, Anthony Ford, Brittany Bajo
2023, Newsletter
No abstract available....
Central Beaufort Sea Wave and Hydrodynamic Modeling Study; Report 2: Modeled waves, hydrodynamics, and sediment transport within Foggy Island Bay
Li H. Erikson, Cornelis M. Nederhoff, Anita C Engelstad, Jeremy L. Kasper, Peter A. Bieniek
2023, OCS Study BOEM 2022-079
Renewed interest in nearshore oil exploration and production in the shallow waters of the Central Beaufort Sea Shelf has created a need to advance our understanding of the past, current, and future atmospheric and oceanographic conditions that affect existing and planned infrastructure and nearshore ecosystems. At the time of writing...
Graton Pesticides (GRAPE) Study: Exposure potential from groundwater and air in California wine country, results
N. Warwick, J. Sellen, P. Reynolds, Michelle Hladik, Dana W. Kolpin, J. Von Behren, J. Burton
2023, Newsletter
No abstract available....
Using public litigation records to identify priority science needs for managing public lands
Alison C. Foster, Sarah K. Carter, Travis S. Haby, Leigh Espy, Malia K. Barton
2023, Ecology and Society (28)
Relevant science is essential for effective natural resource decision making, including on public lands managed by the United States Department of the Interior (DOI) Bureau of Land Management (BLM), that cover 1/10th of the United States. Most of the BLM’s management decisions require analyses under the National Environmental Policy Act,...
Maximum likelihood estimator and nightly acoustic count values as weight of evidence of bat maternity activity
W. Mark Ford, Emily D. Thorne, Alexander Silvis, Elaine L. Barr, Michael P. Armstrong, R. Andrew King
2023, Journal of the Southeastern Association of Fish and Wildlife Agencies (100) 100-106
Since the spread of white-nose syndrome in North America, several bat species have shown precipitous declines in abundance and distribution. With lower netting detection probabilities for the currently threatened but proposed endangered northern long-eared bat (Myotis septentrionalis) and endangered Indiana bats (Myotis sodalis), determination of presence or absence for regulatory...
Size structure, age, growth, and mortality of flathead catfish in the Robert C. Byrd Pool of the Ohio and Kanawha Rivers
Joseph V Siegel, Stuart A. Welsh, Nate D. Taylor, Quinton Phelps
2023, Journal of the Southeastern Association of Fish and Wildlife Agencies (10) 10-16
Flathead catfish (Pylodictis olivaris) were sampled in the Robert C. Byrd Pool of the Ohio and Kanawha rivers, West Virginia, to inform management decisions based on population characteristics of size structure, age, growth, and mortality. Sampling was conducted with low-frequency boat electrofishing during late May to early June over a four-year...
Influences of water hardness on chronic toxicity of potassium chloride to a unionid mussel (Lampsilis siliquoidea)
Ning Wang, Rebecca A. Dorman, James L. Kunz, Danielle M. Cleveland, Jeffery A. Steevens, Suzanne Dunn, David Martinez
2023, Environmental Toxicology and Chemistry (42) 1085-1093
Elevated concentrations of potassium (K) often occur in effluents from wastewater treatment plants, oil and gas production operations, mineral extraction processes, and from other anthropogenic sources. Previous studies have demonstrated that freshwater mussels are highly sensitive to K in acute and chronic exposures, and acute toxicity of K decreases with...
Identification of seismo-volcanic regimes at Whakaari/White Island (New Zealand) via systematic tuning of an unsupervised classifier
B. Steinke, A.D. Jolly, R. Carniel, D.E. Dempsey, S.J. Cronin
2023, Journal of Geophysical Research B: Solid Earth (128)
We present an algorithm based on Self-Organizing Maps (SOM) and k-means clustering to recognize patterns in a continuous 12.5-year tremor time series recorded at Whakaari/White Island volcano, New Zealand (hereafter referred to as Whakaari). The approach is extendable to a variety of volcanic settings through systematic tuning of the classifier....
Northern Sea Otter (Enhydra lutris kenyoni) population abundance and distribution across the southeast Alaska stock, summer 2022
Paul Schuette, Joseph Michael Eisaguirre, Benjamin P Weitzman, Collin Power, Evan Wetherington, Jenipher Cate, Jamie N. Womble, Linnea Pearson, Daniel Melody, Chelsea Merriman, Kat Hanks, George G. Esslinger
2023, Technical Report 2023-01
In the summer of 2022, the U.S. Fish & Wildlife Service and partners successfully completed the first single-year, aerial photo survey of sea otters across the entire Southeast stock of northern sea otters. This document presents the latest findings from the 2022 Southeast Alaska Sea Otter Survey, providing up-to-date information...
Decision making for Centennial Valley Arctic Grayling conservation on Red Rocks Lake National Wildlife Refuge
Jonathan D. Cook, Kyle Flynn, Donovan A. Bell, Matthew E. Jaeger, Jeff Warren, Ryan Kreiner, Jarrett Payne, Jaron Andrews, Andrew Brummond, Evan H. Campbell Grant, Sarah Nelson Sells
2023, Report
This report describes a decision analysis process that was conducted in support of a U.S. Fish and Wildlife Service Environmental Assessment on Arctic grayling (Thymallus arcticus) on Red Rocks Lake National Wildlife Refuge in the Centennial Valley, Montana....
Book review of “Salleyland: Wildlife adventures in swamps, sandhills, and forests. By Whit Gibbons. Tuscaloosa (Alabama): University of Alabama Press. $22.95 (paper). xiv + 166 p.; ill.; index. ISBN: 978-0-8173-6064-1 (pb); 978-0-8173-9426-4 (eb). 2022.”
Jeffrey E. Lovich
2023, The Quarterly Review of Biology (98) 37-38
No abstract available....
Results of validation exercise for Marine Benthic Index
Valerie Partridge, Donald Schoolmaster
2023, Report
Marine benthic invertebrates (benthos) are key components of the Puget Sound ecosystem. Because of their direct association living in, and sometimes consuming, sediments, benthos can be valuable sentinels of ecosystem health. Therefore, indicators of benthic invertebrate community health can serve as direct measures of sediment and water quality. In 2021,...
Thematic accuracy assessment of the NLCD 2019 land cover for the conterminous United States
James Wickham, Stephen V. Stehman, Daniel G. Sorenson, Leila Gass, Jon Dewitz
2023, GIScience & Remote Sensing (60)
The National Land Cover Database (NLCD), a product suite produced through the MultiResolution Land Characteristics (MRLC) consortium, is an operational land cover monitoring program. Starting from a base year of 2001, NLCD releases a land cover database every 2–3-years. The recent release of NLCD2019 extends the database to 18 years. We...
Decision science as a framework for combining geomorphological and ecological modeling for the management of coastal systems
Julien Martin, Matthew S. Richardson, Davina Passeri, Nicholas Enwright, Simeon Yurek, James Flocks, Mitchell J. Eaton, Sara Zeigler, Hadi Charkhgard, Bradley James Udell, Elise R. Irwin
2023, Ecology and Society (28)
The loss of ecosystem services due to climate change and coastal development is projected to have significant impacts on local economies and conservation of natural resources. Consequently, there has been an increase in coastal management activities such as living shorelines, oyster reef restoration, marsh restoration, beach and dune nourishment, and...
Unravelling the influence of landscape alteration from flow alteration on benthic macroinvertebrate assemblage response in the Delaware River Basin
Jonathan G. Kennen, Thomas F. Cuffney
2023, Ecohydrology (16)
Quantifying the effects of streamflow alteration on assemblage response is central to understanding the role humans play in shaping aquatic environments. These changes represent a level of complexity that impedes developing quantitative links between flow and ecological response because stream hydrology is strongly intertwined with natural and anthropogenic factors. Better...
Large increases in methane emissions expected from North America’s largest wetland complex
Sheel Bansal, Max Post van der Burg, Rachel Fern, John Jones, Rachel Lo, Owen P. McKenna, Brian Tangen, Zhen Zhang, Robert A. Gleason
2023, Science Advances (9)
Natural methane (CH4) emissions from aquatic ecosystems may rise because of human-induced climate warming, although the magnitude of increase is highly uncertain. Using an exceptionally large CH4 flux dataset (~19,000 chamber measurements) and remotely sensed information, we modeled plot- and landscape-scale wetland CH4 emissions from the Prairie Pothole Region (PPR), North America’s...
Magnetotelluric monitoring of the Geysers Steam Field, northern California: Phase 2
Jared R. Peacock, David Alumbaugh, Michael Albert Mitchell, Craig Hartline
2023, Conference Paper
An original magnetotelluric (MT) survey collected in 2017 included 42 MT stations mainly in the northwestern part of The Geysers geothermal field in northern California. These data were modeled in 3D and imaged the electrically conductive cover, the electrically resistive steam field, and the electrically resistive Geysers plutonic complex...
Indicators of the effects of climate change on freshwater ecosystems
Kevin C. Rose, Britta Bierwagen, Scott D. Bridgham, Daren M. Carlisle, Charles P. Hawkins, N. LeRoy Poff, Jordan Read, Jason Rohr, Jasmine E. Saros, Craig E. Williamson
2023, Climate Change (176)
Freshwater ecosystems, including lakes, streams, and wetlands, are responsive to climate change and other natural and anthropogenic stresses. These ecosystems are frequently hydrologically and ecologically connected with one another and their surrounding landscapes, thereby integrating changes throughout their watersheds. The responses of any given freshwater ecosystem...
Wildfire-induced shifts in groundwater discharge to streams identified with paired air and stream water temperature analyses
David M. Rey, Martin A. Briggs, Michelle A. Walvoord, Brian A. Ebel
2023, Journal of Hydrology (619)
Within the western United States, increasingly severe and frequent wildfires may alter the magnitude, timing, and quality of water exported from burned areas by streams. Post-fire hydrologic studies often focus on peak stream flow responses to shifts in runoff generation or...
The benefits of big-team science for conservation: Lessons learned from trinational monarch butterfly collaborations
James E. Diffendorfer, Ryan G. Drum, Greg W. Mitchell, Eduardo Rendon-Salinas, Victor Sánchez-Cordero, Darius J. Semmens, Wayne E. Thogmartin, Ignacio J. March
2023, Frontiers in Environmental Science (11)
Many pressing conservation issues are complex problems caused by multiple social and environmental drivers; their resolution is aided by interdisciplinary teams of scientists, decision makers, and stakeholders working together. In these situations, how do we generate science to effectively guide conservation (resource management and policy) decisions? This paper...
Free long wave transformation in the nearshore zone through partial reflections
Stephanie Contardo, Ryan J. Lowe, Francois Dufois, Jeff E. Hansen, Mark L. Buckley, Graham Symonds
2023, Journal of Physical Oceanography (53) 661-681
Long waves play an important role in coastal inundation and shoreline and dune erosion, requiring a detailed understanding of their evolution in nearshore regions and interaction with shorelines. While their generation and dissipation mechanisms are...
Reconstructing the geomorphic evolution and sediment budget history of a dynamic barrier island: Anclote Key, Florida
Daniel J. Ciarletta, Jennifer L. Miselis, Julie Bernier, Arnell S. Forde, Shannon A. Mahan
2023, Conference Paper, The Proceedings of the Coastal Sediments 2023
Decadal to centennial variations in sediment availability are a primary driver of coastal change within barrier systems. Models help explore how barrier morphology relates to past changes in magnitude of sediment availability, but this requires insights and validation from field efforts. In this study, we investigate the progradation of Anclote...
Natives bite back: Depredation and mortality of invasive juvenile Burmese pythons (Python bivittatus) in the Greater Everglades Ecosystem
Andrea Faye Currylow, Austin Lee Fitzgerald, Matthew T.H. Goetz, Jared L. Draxler, Gretchen Erika Anderson, Matthew McCollister, Christina Romagosa, Amy A. Yackel Adams
2023, Management of Biological Invasions (14) 107-122
Burmese pythons (Python bivittatus Kuhl, 1820) are one of the world’s largest snake species, making them a highly successful and biologically damaging invasive predator in the Greater Everglades Ecosystem, Florida, USA. Though we have knowledge of python diet within this system, we understand very little of other interactions with native...
Tracking anadromous fish over successive freshwater migrations reveals the influence of tagging effect, previous success and abiotic factors on upstream passage over barriers
Peter Davies, J. Robert Britton, Theodore R. Castro-Santos, Charles Crundwell, Jamie R. Dodd, Andrew D. Nunn, Randolph Velterop, Jonathan D. Bolland
2023, Canadian Journal of Fisheries and Aquatic Sciences (80) 1110-1125
Predicting and mitigating the impact of anthropogenic barriers on migratory fish requires an understanding of the individual and environmental factors that influence barrier passage. Here, the upstream spawning migrations of iteroparous twaite shad Alosa fallax were investigated over three successive spawning migrations in a highly fragmented river...
Imaging the magmatic plumbing of the Clear Lake Volcanic Field using 3-D gravity inversions
Michael Albert Mitchell, Jared R. Peacock, Seth D. Burgess
2023, Journal of Volcanology and Geothermal Research (435)
The Quaternary Clear Lake Volcanic Field (CLVF) in the Northern California Coast Range is the youngest of a string of northward-younging volcanic centers in the state. The CLVF is located within the broad San Andreas Transform Fault System and has been active intermittently for ∼2 million years. Heat beneath...
