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Quantification of threats to bats at localized spatial scales for conservation and management Quantification of threats to bats at localized spatial scales for conservation and management
In a rapidly changing world, where species conservation needs vary by local habitat, concentrated conservation efforts at small spatial scales can be critical. Bats provide an array of value to the ecosystems they inhabit; many bat species are also of conservation concern. San Diego County, California, contains 22 of the 41 bat species that occur in the United States, 16 of which are on
Authors
Brian M. Myers, Drew Stokes, Kristine L. Preston, Robert N. Fisher, Amy G. Vandergast
Continental-scale nutrient and contaminant delivery by Pacific salmon Continental-scale nutrient and contaminant delivery by Pacific salmon
The movement of large amounts of nutrients by migrating animals has ecological benefits for recipient food webs1,2 that may be offset by co-transported contaminants3,4. Salmon spawning migrations are archetypal of this process, carrying marine-derived materials to inland ecosystems where they stimulate local productivity but also enhance contaminant exposure5,6,7. Pacific salmon...
Authors
Jessica E. Brandt, Jeff S. Wesner, Gregory T. Ruggerone, Timothy D. Jardine, Collin A. Eagles-Smith, Gabrielle E. Ruso, Craig A. Stricker, Cristofor A. Voss, David M. Walters
Discerning sediment provenance in the Outer Banks (USA) through detrital zircon geochronology Discerning sediment provenance in the Outer Banks (USA) through detrital zircon geochronology
Detrital zircon data from modern barrier island and estuarine environments in the Outer Banks (Atlantic Coast, USA) were statistically compared to sands from nearby rivers to assist in determining source-to-sink pathways. Fluvial samples, collected from near the Fall Line contact between the Appalachian Orogen and sediments of the coastal plain, all have age unique distributions, making...
Authors
John W. Counts, Jared T. Gooley, Joshua Long, William H. Craddock, Paul O’Sullivan
Joint Agency Commercial Imagery Evaluation (JACIE) Joint Agency Commercial Imagery Evaluation (JACIE)
The Joint Agency Commercial Imagery Evaluation (JACIE) was formed to leverage resources from several Federal agencies for the characterization of remote sensing data and to share those results across the remote sensing community (U.S. Geological Survey, 2024). Remote sensing data and the quality of that data are vital to (1) understanding the physical world and (2) supporting the science...
Authors
Jeff Clauson, Cody Anderson, Jim Vrabel
Geologic input databases for the 2025 Puerto Rico – U.S. Virgin Islands National Seismic Hazard Model update: Crustal faults component Geologic input databases for the 2025 Puerto Rico – U.S. Virgin Islands National Seismic Hazard Model update: Crustal faults component
The last National Seismic Hazard Model (NSHM) for Puerto Rico and the U.S. Virgin Islands (PRVI) was published in 2003. In advance of the 2025 PRVI NSHM update, we created three geologic input databases to summarize new onshore and offshore fault source information in the northern Caribbean region between 62°–70° W and 16°–21° N. These databases, of fault sections, fault‐zone polygons...
Authors
Jessica A. Thompson Jobe, Richard W. Briggs, Uri S. ten Brink, Thomas L. Pratt, K. Stephen Hughes, Alexandra Elise Hatem, Christopher B. DuRoss, Nadine G. Reitman, Julie A. Herrick, Sylvia R. Nicovich, Camille Collett, Katherine M. Scharer, Stephen B. DeLong
Oxidation is a potentially significant methane sink in land-terminating glacial runoff Oxidation is a potentially significant methane sink in land-terminating glacial runoff
Globally, aquatic ecosystems are one of the largest but most uncertain sources of methane, a potent greenhouse gas. It is unclear how climate change will affect methane emissions, but recent work suggests that glacial systems, which are melting faster with climate change, may be an important source of methane to the atmosphere. Currently, studies quantifying glacial emissions are limited...
Authors
Kristin E. Strock, Rachel Krewson, Nicole M. Hayes, Bridget R. Deemer
Challenges and future directions in quantifying terrestrial evapotranspiration Challenges and future directions in quantifying terrestrial evapotranspiration
Terrestrial evapotranspiration is the second-largest component of the land water cycle, linking the water, energy, and carbon cycles and influencing the productivity and health of ecosystems. The dynamics of ET across a spectrum of spatiotemporal scales and their controls remain an active focus of research across different science disciplines. Here, we provide an overview of the current...
Authors
K. Yi, Gabriel B. Senay, Jousha B. Fisher, Lixin Wang, Kosana Suvocarev, Housen Chu, Georgianne W. Moore, Kimberly A. Novick, Mallory L. Barnes, Trevor F. Keenan, Kanishka Mallick, Xiangzhong Luo, Justine E.C. Missik, Kyle B. Delwiche, Jacob A. Nelson, Stephen P. Good, Xiangming Xiao, Steven A. Kannenberg, Arman Ahmadi, Tianxin Wang, Gil Bohrer, Marcy E. Litvak, David E. Reed, A. Christopher Oishi, Margaret S. Torn, Dennis Baldocchi
Body size and early marine conditions drive changes in Chinook salmon productivity across northern latitude ecosystems Body size and early marine conditions drive changes in Chinook salmon productivity across northern latitude ecosystems
Disentangling the influences of climate change from other stressors affecting the population dynamics of aquatic species is particularly pressing for northern latitude ecosystems, where climate-driven warming is occurring faster than the global average. Chinook salmon (Oncorhynchus tshawytscha) in the Yukon-Kuskokwim (YK) region occupy the northern extent of their species' range and are
Authors
Megan L. Feddern, Rebecca Shaftel, Erik R. Schoen, Curry J. Cunningham, Brendan M. Connors, Benjamin A. Staton, Al von Finster, Zachary Liller, Vanessa R. von Biela, Katherine G. Howard
Dynamic water-quality responses to wildfire in Colorado Dynamic water-quality responses to wildfire in Colorado
In 2020, Colorado experienced the most severe wildfire season in recorded history, with wildfires burning 625 357 acres across the state. Two of the largest fires burned parts of Rocky Mountain National Park (RMNP), and a study was initiated to address concerns about potential effects on drinking water quality from mobilization of ash and sediment. The study took advantage of a wealth of...
Authors
David W. Clow, Garrett Alexander Akie, Sheila F. Murphy, Evan J. Gohring
Effects of initial vegetation heterogeneity on competition of submersed and floating macrophytes Effects of initial vegetation heterogeneity on competition of submersed and floating macrophytes
Non-spatial models of competition between floating aquatic vegetation (FAV) and submersed aquatic vegetation (SAV) predict a stable state of pure SAV at low total available limiting nutrient level, N, a stable state of only FAV for high N, and alternative stable states for intermediate N, as described by an S-shaped bifurcation curve. Spatial models that include physical heterogeneity of...
Authors
Linhao Xu, Don DeAngelis
Correlation analysis of groundwater and hydrologic data, Kaloko-Honokōhau National Historical Park, Hawai‘i Correlation analysis of groundwater and hydrologic data, Kaloko-Honokōhau National Historical Park, Hawai‘i
Designated in 1978, Kaloko-Honokōhau National Historical Park is located on the west coast of the Island of Hawaiʻi. The Kaloko-Honokōhau National Historical Park encompasses about 1,200 acres of coastal land and nearshore ecosystems, which include wetlands, anchialine pools (landlocked bodies of brackish water with hydrologic connections to the ocean), fishponds, a fishtrap, and coral...
Authors
Brytne K. Okuhata, Delwyn S. Oki
One Health collaboration is more effective than single-sector actions at mitigating SARS-CoV-2 in deer One Health collaboration is more effective than single-sector actions at mitigating SARS-CoV-2 in deer
One Health aims to achieve optimal health outcomes for people, animals, plants, and shared environments. We describe a multisector effort to understand and mitigate SARS-CoV-2 transmission risk to humans via the spread among and between captive and wild white-tailed deer. We first framed a One Health problem with three governance sectors that manage captive deer, wild deer populations...
Authors
Jonathan D. Cook, Elias Rosenblatt, Graziella Vittoria DiRenzo, Evan H. Campbell Grant, Brittany A. Mosher, Fernando Arce, Sonja Christensen, Ria R. Ghai, Michael C. Runge