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Hydrological control on soil redox condition and carbon loss of coastal wetland under sea-kevel rise Hydrological control on soil redox condition and carbon loss of coastal wetland under sea-kevel rise
Coastal wetlands are critical carbon sinks with their biogeochemical and ecological functioning shaped by dynamic hydrological conditions that are increasingly influenced by climate change. A key unresolved question is how hydrologic flow, vegetation response, and rising sea levels interact to regulate soil redox condition and carbon loss in coastal wetlands. Using a field-tested...
Authors
Kewei Chen, Fengming Yuan, Peter E. Thornton, Teri O'Meara, Eric J. Ward, Shannon Jones, Bailey Murphy, Melinda Martinez, Sergio Merino, Benjamin N. Sulman
Why are ornithological studies so focused on the breeding stage? A test of hypotheses Why are ornithological studies so focused on the breeding stage? A test of hypotheses
Unequal representation of focal research areas can arise during the initial stages of project development when investigators make decisions about what, when, and where to study. Regarding when research is conducted, publications on vertebrates are strongly skewed toward breeding-stage studies, leaving sizeable gaps in our knowledge pertaining to behavior and demography in nonbreeding...
Authors
Erin R. Stewart, Courtney J. Conway
Overstorey mortality promotes juvenile piñon pine growth during favourable weather at cooler, wetter sites Overstorey mortality promotes juvenile piñon pine growth during favourable weather at cooler, wetter sites
Hotter droughts have resulted in widespread tree die-off events globally, frequently leading to regeneration failure. Dry forest recovery often depends on the growth and survival of extant juvenile trees. However, it is unclear how microenvironmental changes following overstorey tree die-off affect juvenile trees, particularly in dryland systems where tree recruitment is typically...
Authors
Hill Edward, Troy W. Ocheltree, John B. Bradford, Alexandra K. Urza, Miranda D. Redmond
The global proliferation of aquatic, benthic Microcoleus: Taxonomy, distribution, toxin production, ecology, and future directions The global proliferation of aquatic, benthic Microcoleus: Taxonomy, distribution, toxin production, ecology, and future directions
There have been sporadic reports of aquatic, benthic Microcoleus proliferations in freshwater rivers, lakes, and reservoirs for four decades, with reports increasing in frequency over the last twenty years, suggesting a possible rise in their global distribution, frequency, and intensity. Microcoleus can produce anatoxins which are neurotoxic, and ingestion of toxic mats has caused...
Authors
Laura T. Kelly, Daniel G Beach, Joanna R. Blaszczak, Keith Bouma-Gregson, Sydney M. Brown, Haowu Cheng, Janette L. Davidson, Jutta Fastner, Marcus Francis, Andrea Garcia Jimenez, Laurel Genzoli, Ramesh Goel, Diego Gonzalez, Kim M. Handley, Sabine Hilt, Jean-Francois Humbert, Rob Jamieson, Lindsay Johnston, Pilar Junier, Janice Lawrence, Pearse McCarron, Sven Meissner, Jacob Mormando, Jonathan Puddick, Catherine Quiblier, Nagasaijanani Rajpirathap, Charlotte Schampera, Andy Selwood, Karen Shearer, Abeer Sohrab, Rosalina Stancheva, Cecilio Valadez-Cano, Jordan M. Zebrecky, Susanna A. Wood
Mount Rainier volcanic hazard information Mount Rainier volcanic hazard information
Authors
Holly F. Weiss-Racine, Joseph A. Bard, Jessica L. Ball, Carolyn L. Mastin
The influence of riparian zone grazing on channel stability in an arroyo The influence of riparian zone grazing on channel stability in an arroyo
The introduction of large herds of domesticated grazing animals by European immigrants in the late 19th century is one primary hypothesis used to explain the initiation of arroyo cutting in the American West. But studies designed to quantify the effects of grazing on watershed hydrology and sedimentation have had conflicting results that are often scale dependent. We used a before-and...
Authors
Jason S. Alexander, Cheryl A. Eddy-Miller, Jacob B. Stout, Haylie M. Brown
Evaluation of benthic habitat change within the national historic sites of Hawaiʻi’s Kona Coast Evaluation of benthic habitat change within the national historic sites of Hawaiʻi’s Kona Coast
Authors
Meredith Leigh McPherson, Joshua B. Logan, Kristen Alkins, Sarah Groff, Gerry A. Hatcher, Ann E. Gibbs, Susan Cochran, Curt D. Storlazzi
Assessment of natural gas pipeline construction on stream temperature and turbidity in southwestern Virginia, 2017–25 Assessment of natural gas pipeline construction on stream temperature and turbidity in southwestern Virginia, 2017–25
Despite the extensive natural gas pipeline network in the United States that intersects streams and other sensitive habitats, few case studies use a comparative upstream-to-downstream approach to evaluate potential short- and long-term effects of pipeline stream crossings from pre-construction through post-restoration. In 2017, the U.S. Geological Survey, in cooperation with the Virginia
Authors
Brendan M. Foster, Carly Marcella Maas, Alejandra Logan Flota
Agency approach to allocation of human capital and program composition for human-marine mammal interaction management in the United States Agency approach to allocation of human capital and program composition for human-marine mammal interaction management in the United States
Introduction: Marine mammals have served important and diverse roles throughout human history. Once exploited to near extinction, many species in the United States (U.S.) have recovered dramatically under the Marine Mammal Protection Act (MMPA). The U.S. National Marine Fisheries Service (NMFS) has jurisdiction to administer the MMPA for cetaceans and most pinnipeds. While most take is...
Authors
Melissa E. Flye, Carly C. Sponarski, Kristina M. Cammen, Adam Daigneault, Danielle Frechette, Joseph D. Zydlewski
Tidal wetland inundated volume estimates using L-band radar imagery and synthetic tide gauging Tidal wetland inundated volume estimates using L-band radar imagery and synthetic tide gauging
Tidal inundation dynamics are a principal driver of hydrological and biogeochemical processes in coastal ecosystems, controlling the exchange of carbon, nutrients, and sediments between wetlands and estuaries. In this study, we assessed the utility of L-band radar imagery in deriving tidal wetland inundated volume estimates (pixel-wise water depths), which provide a more robust...
Authors
Brian T. Lamb, Kyle C. McDonald, Maria Tzortziou, Nicholas Steiner
The mineral chemistry networks of tin and tungsten reflect metallogenic eras of the Mesozoic The mineral chemistry networks of tin and tungsten reflect metallogenic eras of the Mesozoic
Continental remobilization is a crucial driver of metallogenesis and the formation of ore deposits. Some of the world’s largest mineral deposits of the economically valuable elements tin (Sn), tungsten (W), gold (Au), copper (Cu), lead (Pb), and zinc (Zn) formed during the Mesozoic Era. Additionally, the chemistry and distribution of the elements Sn and W have been investigated in...
Authors
Elisha Kelly Moore, Shaunna M. Morrison, Amber Hatter
Predicted range shifts of non‐native grasses in response to climate change are influenced by photosynthetic pathway: A case study in the Hawaiian Islands Predicted range shifts of non‐native grasses in response to climate change are influenced by photosynthetic pathway: A case study in the Hawaiian Islands
Aim
Authors
Curtis Daehler, Kevin Faccenda, Elizabeth Aquino Peterson, Kelsey C. Brock, Lucas B. Fortini