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Distribution of ancient carbon in groundwater and soil gas from degradation of petroleum near the Red Hill Bulk Fuel Storage Facility, O‘ahu, Hawai‘i Distribution of ancient carbon in groundwater and soil gas from degradation of petroleum near the Red Hill Bulk Fuel Storage Facility, O‘ahu, Hawai‘i
The groundwater below the Red Hill Bulk Fuel Storage Facility (the facility) in Oʻahu, Hawaiʻi, contains fuel compounds from past spills. This study used carbon-14 analyses to distinguish fuel-derived carbon from background carbon, along with other biodegradation indicators, to address two goals: (1) determine the extent and migration direction of groundwater affected by residual fuel...
Authors
Jared J. Trost, Barbara A. Bekins, Jeanne B. Jaeschke, Geoffrey N. Delin, Daniel A Sinclair, James K Stack, Rylen K. Nakama, Uli’i M. Miyajima, Lhiberty D. Pagaduan, Isabelle M. Cozzarelli
The where and why of large wood occurrence in the Upper Mississippi and Illinois Rivers The where and why of large wood occurrence in the Upper Mississippi and Illinois Rivers
Large wood (LW) plays important geomorphic and ecological roles in rivers and is widely used as a restoration tool. Changes to floodplain land use and historical removal have altered wood dynamics in fluvial systems globally. We know little about the distribution and dynamics of LW in great rivers (approximately >105 km2) like the Upper Mississippi and Illinois Rivers despite its...
Authors
Molly Van Appledorn, Kathi Jo Jankowski, Kaija Gahm, Serenity Budd, Douglas Baumann, Barbara Bennie, Richard A. Erickson, Roger J. Haro, Jason J. Rohweder
Potential hazards of polycyclic aromatic hydrocarbons in Great Lakes tributaries using water column and porewater passive samplers and sediment wquilibrium partitioning Potential hazards of polycyclic aromatic hydrocarbons in Great Lakes tributaries using water column and porewater passive samplers and sediment wquilibrium partitioning
The potential for polycyclic aromatic hydrocarbon (PAH)-related effects in benthic organisms is commonly estimated from organic carbon-normalized sediment concentrations based on equilibrium partitioning (EqP). Although this approach is useful for screening purposes, it may overestimate PAH bioavailability by orders of magnitude in some sediments, leading to inflated exposure estimates...
Authors
Austin K. Baldwin, Steven R. Corsi, David A. Alvarez, David L. Villeneuve, Gerald T. Ankley, Brett R. Blackwell, Marc A. Mills, Peter L. Lenaker, Michelle A. Nott
Temporal habitat use of mule deer in the Pueblo of Santa Ana, New Mexico Temporal habitat use of mule deer in the Pueblo of Santa Ana, New Mexico
Mule deer (Odocoileus hemionus) are important economically, culturally, and recreationally to the Pueblo of Santa Ana in central New Mexico, USA. Studies of habitat selection improve our understanding of mule deer ecology in central New Mexico and provide the Tribe with valuable information for management of mule deer. We used global positioning system telemetry-collar data collected on...
Authors
Daniel E. Bird, Laura D’Acunto, Daniel Ginter, Glenn Harper, Patrick A. Zollner
Lifetime reproductive characteristics of gray wolves Lifetime reproductive characteristics of gray wolves
Female and male cooperative breeders can use different strategies to maximize reproduction and fitness over their lifetimes. Answering questions about fitness in cooperative breeders requires long-term studies as well as complete data on group composition and size which can be exceedingly difficult to obtain. Using a long-term genetic data set of complete group pedigrees, I asked how...
Authors
David Edward Ausband
Streamflow, water quality, and constituent loads and yields, Scituate Reservoir drainage area, Rhode Island, water year 2020 Streamflow, water quality, and constituent loads and yields, Scituate Reservoir drainage area, Rhode Island, water year 2020
As part of a long-term cooperative program to monitor water quality within the Scituate Reservoir drainage area, the U.S. Geological Survey in cooperation with Providence Water (sometimes known as Providence Water Supply Board) collected streamflow and water-quality data in tributaries to the Scituate Reservoir, Rhode Island. Streamflow and concentrations of chloride and sodium estimated...
Authors
Kirk Smith
The development of China’s monopoly over cobalt battery materials The development of China’s monopoly over cobalt battery materials
While previous resource conflicts have often been linked to fuel minerals such as oil, future resource conflict may revolve around nonfuel minerals that enable strategic emerging technologies. During a 2010 diplomatic dispute, China reportedly blocked exports of rare earth elements to Japan, thereby leveraging China’s near-monopoly to threaten Japanese manufacturers of advanced...
Authors
Andrew L. Gulley
Hydrogen systems and reactive transport modelling: An approach to natural hydrogen exploration Hydrogen systems and reactive transport modelling: An approach to natural hydrogen exploration
No abstract available.
Authors
Geoffrey S. Ellis, Daniel Palmowski, Nicolas Lefeuvre
Middle-late Holocene paleolimnological changes in central Lake Tanganyika: Integrated evidence from the Kavala Island Ridge (Tanzania) Middle-late Holocene paleolimnological changes in central Lake Tanganyika: Integrated evidence from the Kavala Island Ridge (Tanzania)
Middle and Late Holocene sediments have not been extensively sampled in Lake Tanganyika, and much remains unknown about the response of the Rift Valley’s largest lake to major environmental shifts during the Holocene, including the termination of the African Humid Period (AHP). Here, we present an integrated study (sedimentology, mineralogy, and geochemistry) of a radiocarbon-dated...
Authors
Leandro Domingos-Luz, Michael J. Soreghan, Giliane G. Rasbold, Geoffrey S. Ellis, Justin E. Birdwell, Ishmael A. Kimirei, Christopher A. Scholz, Michael M. McGlue
Human activity drives establishment, but not invasion, of non-native plants on islands Human activity drives establishment, but not invasion, of non-native plants on islands
Island ecosystems are particularly susceptible to the impacts of invasive species. Many rare and endangered species that are endemic to islands are negatively affected by invasions. Past studies have shown that the establishment of non-native species on islands is related to native plant richness, habitat heterogeneity, island age, human activity, and climate. However, it is unclear...
Authors
William G. Pfadenhauer, Graziella Vittoria DiRenzo, Bethany A. Bradley
Evolutionary ecology of masting: Mechanisms, models, and climate change Evolutionary ecology of masting: Mechanisms, models, and climate change
Many perennial plants show mast seeding, characterized by synchronous and highly variable reproduction across years. We propose a general model of masting, integrating proximate factors (environmental variation, weather cues, and resource budgets) with ultimate drivers (predator satiation and pollination efficiency). This general model shows how the relationships between masting and...
Authors
Michal Bogdziewicz, Dave Kelly, Davide Ascoli, Thomas Caignard, Francesco Chianucci, Elizabeth E. Crone, Emilie Fleurot, Jessie Foest, Georg Gratzer, Tomika Hagiwara, Qingmin Han, Valentin Journe, Lea Keurinck, Katarzyna Kondrat, Ryan McClory, Jalene M. LaMontagne, Ignacio A. Mundo, Anita Nussbaumer, Iris Oberklammer, Misuzu Ohno, Ian S. Pearse, Mario B. Pesendorfer, Giulia Resente, Akiko Satake, Mitsue Shibata, Rebecca Snell, Jakub Szymkowiak, Laura Touzot, Rafal Zwolak, Magdalena Zywiec, Andrew Hacket-Pain
Microbial diversity, genomics, and phage–host interactions of cyanobacterial harmful algal blooms Microbial diversity, genomics, and phage–host interactions of cyanobacterial harmful algal blooms
The occurrence of cyanobacterial harmful algal blooms (cyanoHABs) is related to their physical and chemical environment. However, less is known about their associated microbial interactions and processes. In this study, cyanoHABs were analyzed as a microbial ecosystem, using 1 year of 16S rRNA sequencing and 70 metagenomes collected during the bloom season from Lake Okeechobee (Florida...
Authors
Lauren E. Krausfeldt, Elizaveta Shmakova, Hyo Won Lee, Viviana Mazzei, Keith A. Loftin, Robert P Smith, Emily E. Karwacki, Eric Fortman, B.H. Rosen, Hidetoshi Urakawa, Manoj Dadlani, Rita Colwell, Jose V. Lopez