Amur Falcon Falco amurensis
Jaume Orta, Guy M. Kirwan, Jeffrey S. Marks, Ryan C. Burner, Sundev Gombobaatar, Paul van Els, Chuenchom Hansasuta
2024, Book chapter, Birds of the world
No abstract available....
Iron oxyhydroxide-rich hydrothermal deposits at the high-temperature Fåvne vent field, Mohns Ridge
Caroline Gini, John Jamieson, Eoghan P. Reeves, Amy Gartman, Thibaut Barreyre, Michael G. Babechuk, Steffen L. Jørgensen, Katleen Robert
2024, Geochemistry, Geophysics, Geosystems (25)
The recently discovered Fåvne vent field, located at 3,040 m depth on the slow-spreading Mohns mid-ocean ridge between Greenland and Norway, is a high-temperature (≥250°C) vent field that is characterized by Fe oxyhydroxide-rich and S-poor chimneys and mounds. The vent field is located on both the hanging wall and footwall of...
Projected sea-level rise and high tide flooding at De Soto National Memorial, Florida
Hana R. Thurman, Nicholas M. Enwright, Michael J. Osland, Davina L. Passeri, Richard H. Day, Bethanie M. Simons
2024, Fact Sheet 2024-3016
IntroductionNational parks and preserves in the South Atlantic-Gulf Region contain valuable coastal habitats such as tidal wetlands and mangrove forests, as well as irreplaceable historic buildings and archeological sites located in low-lying areas. These natural and cultural resources are vulnerable to accelerated sea-level rise and escalating high tide flooding events....
Dissolved arsenic concentrations in surface waters within the upper portions of the Klamath River Basin, Oregon and California
Marie Noële Croteau, Brent R. Topping, Rick A. Carlson
2024, Scientific Investigations Report 2024-5029
Arsenic toxicity is an environmental health problem. Levels of arsenic in surface waters at some locations in the Klamath River Basin in southern Oregon and northern California can exceed the U.S. Environmental Protection Agency (EPA) standard for drinking water. There are both anthropogenic and natural sources of arsenic. The Klamath...
System characterization report on the Gaofen-6
Aparajithan Sampath, Jon Christopherson, Seonkyung Park, Minsu Kim, Gregory L. Stensaas, Cody Anderson
2024, Open-File Report 2021-1030-M
Executive SummaryGaofen-6 represents a series of Chinese high-resolution Earth observation satellites. More than 12 satellites have been launched in the Gaofen series, beginning with Gaofen-1 in 2013. Satellites within the series have varying infrared, radar, and optical imaging capabilities. The primary goal for the satellites in this series is to...
Distribution, abundance, and breeding activities of the Least Bell's Vireo at Marine Corps Base Camp Pendleton, California—2020 annual report
Suellen Lynn, Michelle Treadwell, Barbara E. Kus
2024, Open-File Report 2024-1009
Executive SummaryThe purpose of this report is to provide the Marine Corps with an annual summary of abundance, breeding activity, demography, and habitat use of endangered Least Bell’s Vireos (Vireo bellii pusillus) at Marine Corps Base Camp Pendleton (MCBCP, or Base). Surveys for the Least Bell's Vireo were conducted...
Distribution, Abundance, and Breeding Activities of the Southwestern Willow Flycatcher at Marine Corps Base Camp Pendleton, California—2020 Annual Report
Scarlett L. Howell, Barbara E. Kus
2024, Open-File Report 2024-1005
Executive SummarySurveys for the endangered Southwestern Willow Flycatcher (Empidonax traillii extimus) were done at Marine Corps Base Camp Pendleton (MCBCP or “Base”), California, between May 4 and July 31, 2020. All of MCBCP’s historically occupied riparian habitat (core survey area) was surveyed for flycatchers in 2020. Additionally, one-fifth of the...
Effects of elevated pCO2 on bioenergetics and disease susceptibility in Pacific herring Clupea pallasii
Christopher Murray, Jacob L. Gregg, Ashley MacKenzie, Hiruni Jayasekara, Sophie Hall, Terrie Klinger, Paul Hershberger
2024, Marine Ecology Progress Series. (738) 225-242
Ocean acidification can affect the immune responses of fish, but effects on pathogen susceptibility remain uncertain. Pacific herring Clupea pallasii were reared from hatch under 3 CO2 partial pressure ( pCO2) treatments (ambient, ∼650 µatm; intermediate, ∼1500 µatm; high, ∼3000 µatm) through metamorphosis (98 d) to evaluate the effects of ocean acidification on bioenergetics...
Evaluation of extinction risk for stream fishes within an urban riverscape using population viability analysis
Brock Huntsman, Kai Palenscar, Kerwin Russell, Brett Mills, Chris Jones, William Ota, Kurt E. Anderson, Heather Dyer, Fitsum Abadi, Marissa L. Wulff
2024, Aquatic Conservation: Marine and Freshwater Ecosystems (34)
1. The Santa Ana River in the Los Angeles region of California demonstrates common habitat degradation symptoms that are characteristic of the urban stream syndrome. These impacts have altered the Santa Ana River community structure, with few species as impacted as the native Santa Ana sucker (sucker; Pantosteus santaanae). 2. Consequently,...
Signatures of wave erosion in Titan’s coasts
Rose Elizabeth Palermo, Andrew D. Ashton, Jason M. Soderblom, Samuel P. D. Birch, Alexander G. Hayes, J. Taylor Perron
2024, Science Advances (10)
The shorelines of Titan’s hydrocarbon seas trace flooded erosional landforms such as river valleys; however, it is unclear whether coastal erosion has subsequently altered these shorelines. Spacecraft observations and theoretical models suggest that wind may cause waves to form on Titan’s seas, potentially driving coastal erosion, but the observational evidence...
River channel response to the removal of the Pilchuck River Diversion Dam, Washington State
Scott W. Anderson, Brett Shattuck, Neil Shea, Catherine M. Seguin, Joe J. Miles, Derek Marks, Natasha Coumou
2024, Northwest Science (97) 134-145
In August 2020, the 3-m tall Pilchuck River Diversion Dam was removed from the Pilchuck River, allowing free fish passage to the upper third of the watershed for the first time in over a century. The narrow, 300-m long impoundment behind the dam was estimated to hold 4,000–7,500 m3 of sand...
Demographics of a previously undocumented diamondback terrapin (Malaclemys terrapin) population
Daniel J. Catizone, Travis M. Thomas, Christina Romagosa, Margaret Lamont
2024, Estuaries and Coasts
Coastal habitats are some of the most imperiled due to climate change and anthropogenic activities. As such, it is important to understand population dynamics of the species that may play a role in regulating coastal systems. Diamondback terrapins in Northwest Florida have been understudied, which has resulted in a gap...
Distribution, abundance, and habitat characteristics of Coastal Cactus Wrens (Campylorhynchus brunneicapillus) in San Diego County, California—2023 Data Summary
Suellen Lynn, Barbara E. Kus
2024, Data Report 1196
Executive SummaryWe surveyed for coastal Cactus Wren (Campylorhynchus brunneicapillus) in 507 established plots in San Diego County in 2023, encompassing 4 genetic clusters (Otay, Lake Jennings, Sweetwater/Encanto, and San Pasqual). Two surveys were completed at each plot between March 1 and July 31. Cactus Wrens were detected in 181 plots...
Nihoa and Laysan Island passerines population abundances, trends, and habitat utilization
Trevor Bak, Richard J. Camp, Chris Farmer, Rachel A. Rounds, Sheldon M. Plentovich, John Vetter, Paul C. Banko
2024, Report, Hawaii Cooperative Studies Unit Technical Report Series
Nihoa and Laysan Island, part of the Northwestern Hawaiian Islands, are host to three endangered passerine species—Nihoa finch (Telespiza ultima), Nihoa millerbird (Acrocephalus familiaris kingi), and Laysan finch (Telespiza cantans). Using point-transect distance sampling survey records from 2010 to 2022 for Nihoa and 2013...
Spatial patterns as long transients in submersed-floating plant competition with biocontrol
Linhao Xu, Don DeAngelis
2024, Theoretical Ecology
A cellular automata model was developed and parameterized to test the effectiveness of application of biological control insects to water hyacinth (Pontederia crassipes), which is an invasive floating plant species in many parts of the world and outcompetes many submersed native aquatic species in southern Florida....
Solute export patterns across the contiguous USA
Dustin W. Kincaid, Kristen L. Underwood, Scott Douglas Hamshaw, L. Li, Erin C. Seybold, Bryn Stewart, Donna M. Rizzo, Ijaz Ul Haq, Julia N. Perdrial
2024, Hydrological Processes (38)
Understanding controls on solute export to streams is challenging because heterogeneous catchments can respond uniquely to drivers of environmental change. To understand general solute export patterns, we used a large-scale inductive approach to evaluate concentration–discharge (C–Q) metrics across catchments spanning a broad range of catchment attributes and hydroclimatic drivers. We...
Relatively stable pressure effects and time-increasing thermal contraction control Heber geothermal field deformation
Guoyan Jiang, Andrew Barbour, Robert John Skoumal, Kathryn Zerbe Materna, Aren Crandall-Bear
2024, Nature Communications (15)
Due to geological complexities and observational gaps, it is challenging to identify the governing physical processes of geothermal field deformation including ground subsidence and earthquakes. In the west and east regions of the Heber Geothermal Field (HGF), decade-long subsidence was occurring despite injection of heat-depleted brines, along with transient reversals...
Visualizing wading bird optimal foraging decisions with aggregation behaviors using individual-based modeling
Simeon Yurek, Donald L. DeAngelis, Hyo Won Lee, Stephen Tennenbaum
2024, Ecological Modelling (493)
Foragers on patchy landscapes must efficiently balance time between searching for and consuming resources to meet their daily energetic requirements. Spatial aggregation foraging behaviors may improve foraging efficiency by sharing information on locations of resource hotspots. Wading birds are an example of patch foragers that form colonial aggregations during the...
Peak streamflow trends in Illinois and their relation to changes in climate, water years 1921–2020
Mackenzie K. Marti, Thomas M. Over
2024, Scientific Investigations Report 2023-5064-B
This report characterizes changes in peak streamflow in Illinois and the relation of these changes to climatic variability, and provides a foundation for future studies that can address nonstationarity in peak-flow frequency analysis in Illinois. Records of annual peak and daily streamflow at streamgages and gridded monthly climatic data (observed...
Evaluation of short-term mussel test for estimating toxicity
Ning Wang, James L. Kunz, Chris D. Ivey, Danielle M. Cleveland, Jeffery Steevens
2024, Environmental Toxicology and Chemistry
Effect concentrations of ammonia, nickel, sodium chloride, and potassium chloride from short-term 7-day tests were compared to those from standard chronic 28-day toxicity tests with juvenile mussels (fatmucket, Lampsilis siliquoidea) to evaluate the sensitivities of the 7-day tests. The effect concentrations for nickel (59 µg Ni/L), chloride...
Catchment coevolution and the geomorphic origins of variable source area hydrology
David G Litwin, Gregory E. Tucker, Katherine R. Barnhart, Ciaran Harman
2024, Water Resources Research (60)
Features of landscape morphology—including slope, curvature, and drainage dissection—are important controls on runoff generation in upland landscapes. Over long timescales, runoff plays an essential role in shaping these same features through surface erosion. This feedback between erosion and runoff generation suggests that modeling long-term landscape evolution together...
Uncertainty in ground-motion-to-intensity conversions significantly affects earthquake early warning alert regions
Jessie Saunders, Annemarie S. Baltay, Sarah E. Minson, Maren Böse
2024, The Seismic Record (4) 121-130
We examine how the choice of ground‐motion‐to‐intensity conversion equations (GMICEs) in earthquake early warning (EEW) systems affects resulting alert regions. We find that existing GMICEs can underestimate observed shaking at short rupture distances or overestimate the extent of low‐intensity shaking. Updated GMICEs that...
Conservation genetics of the endangered California Freshwater Shrimp (Syncaris pacifica): Watershed and stream networks define gene pool boundaries
Abdul M. Ada, A. G. Vandergast, Robert N. Fisher, Darren Fong, Andrew J. Bohonak
2024, Conservation Genetics
Understanding genetic structure and diversity among remnant populations of rare species can inform conservation and recovery actions. We used a population genetic framework to spatially delineate gene pools and estimate gene flow and effective population sizes for the endangered California Freshwater Shrimp Syncaris pacifica. Tissues of 101...
Diel temperature signals track seasonal shifts in localized groundwater contributions to headwater streamflow generation at network scale
David Rey, Danielle K. Hare, Jennifer Burlingame Hoyle Fair, Martin Briggs
2024, Journal of Hydrology (639)
Groundwater contributions to streamflow sustain aquatic ecosystem resilience; streams without significant groundwater inputs often have well-coupled air and water temperatures that degrade cold-water habitat during warm low flow periods. Widespread uncertainty in stream-groundwater connectivity across space and time has created disparate...
Reproducing age variability in grass carp egg samples from the lower Sandusky River, Ohio, USA, using an egg-drift model
David T. Soong, P. Ryan Jackson, Patrick M. Kočovský, Lori Morrison, Tatiana Garcia, Santiago Santacruz, Cindy Chen, Zhenduo Zhu, Holly Susan Embke
2024, Journal of Great Lakes Research (50)
Invasive grass carp (Ctenopharyngodon idella) are currently reproducing in several tributaries to Lake Erie and threatening the Great Lakes ecosystem and fisheries. Grass carp are pelagic river spawners whose fertilized eggs drift downstream from the spawning site, developing as they drift. Variability in spawning time and location together with nonuniform...
