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Filter Total Items: 243

Rapid butterfly declines across the United States during the 21st century Rapid butterfly declines across the United States during the 21st century

Reports of declining insect populations have received widespread media attention, but evidence for declines has been variable across regions and taxonomic groups. Edwards et al. examined trends in the most surveyed taxon: butterflies (see the Perspective by Inouye). Combining data from 35 citizen science programs across the continental US, the authors found declines in overall butterfly...
Authors
Collin B. Edwards, Elise F. Zipkin, Erica H. Henry, Nick M. Haddad, Matthew L. Forister, Kevin J. Burls, Steven P. Campbell, Elizabeth E. Crone, Jay Diffendorfer, Margaret R. Douglas, Ryan G. Drum, Candace E. Fallon, Jeffrey Glassberg, Eliza M. Grames, Richard G. Hatfield, Shiran V. Hershcovich, Scott Hoffman-Black, Elise A. Larsen, Wendy Leuenberger, Mary J. Linders, Travis Longcore, Daniel A. Marschalek, James Michielini, Naresh Neupane, Leslie Ries, Arthur M. Shapiro, Ann B. Swengel, Scott R. Swengel, Douglas J. Taron, Braeden Van Deynze, Jerome Wiedmann, Wayne E. Thogmartin, Cheryl B. Schultz

Using plant invasions to compare occurrence- and abundance-based calculations of biotic homogenisation: Are results complementary or contradictory? Using plant invasions to compare occurrence- and abundance-based calculations of biotic homogenisation: Are results complementary or contradictory?

Aim Beta diversity quantifies the similarity of ecological assemblages. Its increase, known as biotic homogenisation, can be a consequence of biological invasions. However, species occurrence (presence/absence) and abundance-based analyses can produce contradictory assessments of the magnitude and direction of changes in beta diversity. Previous work indicates these contradictions should...
Authors
D.M. Buonaiuto, David Barnett, Dana M. Blumenthal, Andrea N. Nebhut, Ian S. Pearse, Helen Sofaer, Cascade J.B. Sorte, Jeffrey D. Corbin, Regan Early, Magda Garbowski, Ines Ibanez, Daniel C. Laughlin, Laís Petri, Montserrat Vilà, Bethany A. Bradley

A survey of mammal and fish genetic diversity across the global protected area network A survey of mammal and fish genetic diversity across the global protected area network

Global conservation targets aim to expand protected areas and maintain species’ genetic diversity. Whether protected areas capture genetic diversity is unclear. We examined this question using a global sample of nuclear population-level microsatellite data comprising genotypes from 2513 sites, 134,183 individuals, and 176 mammal and marine fish species. The genetic diversity and...
Authors
Chloe Schmidt, Eleana Karachaliou, Amy G. Vandergast, Eric D. Crandall, Jeff T. Falgout, Margaret Hunter, Francine Kershaw, Deborah M. Leigh, David O'Brien, Ivan Paz-Vinas, Gernot Segelbacher, Colin J. Garroway

Impact of thermoelectric power plant operations and water use reporting methods on thermoelectric power plant water use Impact of thermoelectric power plant operations and water use reporting methods on thermoelectric power plant water use

Thermoelectric power generation accounts for over 41% of total U.S. freshwater withdrawals, making understanding the determinants of power plants’ water withdrawals (WW) and consumption (WC) critical for reducing the sector’s reliance on increasingly scarce water resources. However, reported data inconsistencies and incomplete analysis of potential determinants of thermoelectric water...
Authors
Eric Sjostedt, Richard Rushforth, Vincent Tidwell, Melissa A. Harris, Ryan McManamay, Landon Marston

Developing a probabilistic tsunami hazard assessment framework for Pacific sources: USGS Powell Center meeting summary Developing a probabilistic tsunami hazard assessment framework for Pacific sources: USGS Powell Center meeting summary

Multi-organizational principal investigators formed a U.S. Geological Survey (USGS) Powell Center Working Group (WG), Tsunami Source Standardization for Hazards Mitigation in the United States, to develop a comprehensive series of sources capable of generating tsunamis that could impact U.S. state and territory coastal areas using probabilistic tsunami hazard analysis (PTHA). PTHA...
Authors
Jason R. Patton, Stephanie L Ross, Marie C. Eble, Christodoulos Kyriakopoulos, Patrick J. Lynett, DmitriyJ. Nicolsky, Kenneth Ryan, Hong Kie Thio, Rick I. Wilson, Baoning Wu

A fire deficit persists across diverse North American forests despite recent increases in area burned A fire deficit persists across diverse North American forests despite recent increases in area burned

Rapid increases in wildfire area burned across North American forests pose novel challenges for managers and society. Increasing area burned raises questions about whether, and to what degree, contemporary fire regimes (1984–2022) are still departed from historical fire regimes (pre-1880). We use the North American tree-ring fire-scar network (NAFSN), a multi-century record comprising...
Authors
Sean Parks, Chris Guiterman, Ellis Q. Margolis, Maggie Lonergan, Ellen Whitman, John T. Abatzoglou, Donald A. Falk, James B. Johnston, Lori D. Daniels, Charles W. Lafon, Rachel A. Loehman, Kurt F. Kipfmueller, Cameron E. Naficy, Marc-Andre Parisien, Jeanne Portier, Michael C. Stambaugh, A. Park Williams, Andreas Paul Wion, Larissa Yocom

Spatiotemporal synchrony of climate and fire occurrence across North American forests (1750-1880) Spatiotemporal synchrony of climate and fire occurrence across North American forests (1750-1880)

Aim Increasing aridity has driven widespread synchronous fire occurrence in recent decades across North America. The lack of historical (pre-1880) fire records limits our ability to understand long-term continental fire-climate dynamics. The goal of this study is to use tree-ring reconstructions to determine the relationships between spatiotemporal patterns in historical climate and...
Authors
Ellis Q. Margolis, Andreas Paul Wion, John T. Abatzoglou, Lori D. Daniels, Donald A. Falk, Chris Guiterman, James B. Johnston, Kurt F. Kipfmueller, Charles W. Lafon, Rachel A. Loehman, Maggie Lonergan, Cameron E. Naficy, Marc-Andre Parisien, Sean Parks, Jeanne Portier, Michael C. Stambaugh, Ellen Whitman, A. Park Williams, Larissa Yocom

Advancing the science of headwater streamflow for global water protection Advancing the science of headwater streamflow for global water protection

The protection of headwater streams faces increasing challenges, exemplified by limited global recognition of headwater contributions to watershed resiliency and a recent US Supreme Court decision limiting federal safeguards. Despite accounting for ~77% of global river networks, the lack of adequate headwaters protections is caused, in part, by limited information on their extent and...
Authors
Heather E. Golden, Jay Christiensen, Hilary McMillan, Christa A. Kelleher, Charles R. Lane, Admin Husic, Li Li, Adam S. Ward, John C. Hammond, Erin C. Seybold, Kristin L. Jaeger, Margaret Ann Zimmer, Roy Sando, C. Nathan Jones, Catalina Segura, D. Tyler Mahoney, Adam N. Price, Frederick Chang

The interplay of future solar energy, land cover change, and their projected impacts on natural lands and croplands in the US The interplay of future solar energy, land cover change, and their projected impacts on natural lands and croplands in the US

Projections for deep decarbonization require large amounts of solar energy, which may compete with other land uses such as agriculture, urbanization, and conservation of natural lands. Existing capacity expansion models do not integrate land use land cover change (LULC) dynamics into projections. We explored the interaction between projected LULC, solar photovoltaic (PV) deployment, and...
Authors
James E. Diffendorfer, Brian Sergi, Anthony Lopez, Travis Williams, Michael Gleason, Zachary H. Ancona, Wesely Cole

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

Shaping the coast: Accounting for the human wildcard in projections of future change Shaping the coast: Accounting for the human wildcard in projections of future change

Coastal change and evolution are the product of physical drivers (e.g., waves) tightly coupled with human behavior. As climate change impacts intensify, demand is increasing for information on where, when, and how coastal areas may change in the future. Although considerable research investments have been made in understanding the physical drivers and processes that modify and shape...
Authors
Erika E. Lentz, Gabrielle Wong-Parodi, Sara Zeigler, Renee C. Collini, Margaret L. Palmsten, Davina Passeri

Subduction zone geometry modulates the megathrust earthquake cycle: Magnitude, recurrence, and variability Subduction zone geometry modulates the megathrust earthquake cycle: Magnitude, recurrence, and variability

Megathrust geometric properties exhibit some of the strongest correlations with maximum earthquake magnitude in global surveys of large subduction zone earthquakes, but the mechanisms through which fault geometry influences subduction earthquake cycle dynamics remain unresolved. Here, we develop 39 models of sequences of earthquakes and aseismic slip (SEAS) on variably-dipping planar and...
Authors
James Burkhardt Biemiller, Alice-Agnes Gabriel, Dave May, Lydia M. Staisch
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