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Ambrosia beetles (Coleoptera: Curculionidae: Scolytinae and Platypodinae) associated with rapid ohia death and mixed Metrosideros polymorpha forests on the Island of Kauai, Hawaii Ambrosia beetles (Coleoptera: Curculionidae: Scolytinae and Platypodinae) associated with rapid ohia death and mixed Metrosideros polymorpha forests on the Island of Kauai, Hawaii
Xyleborini (Coleoptera: Curculionidae) beetles on the island of Kauaʻi, Hawaiʻi, are of interest due to their role in the fungal disease complex, rapid ʻōhiʻa death (ROD), and the unique radiation of endemic ambrosia beetles found across the Hawaiian archipelago. We investigated the status of RODassociated and native ambrosia beetles on Kauaʻi by rearing beetles from bolts collected from...
Authors
Kylle Roy, Ellen J. Dunkle, Roshan Manandhar, Michelle Clark, Karl N. Magnacca, Kalli Harshman, Robert W. Peck
John D. Bredehoeft (1933-2023) — A geologist at the frontiers of hydrogeology John D. Bredehoeft (1933-2023) — A geologist at the frontiers of hydrogeology
No abstract available.
Authors
Leonard F. Konikow, Eric G. Reichard, Michael J. King
Investigating spatio-temporal variability of initial 230Th/232Th in intertidal corals Investigating spatio-temporal variability of initial 230Th/232Th in intertidal corals
One of the key factors in obtaining precise and accurate 230Th ages of corals, especially for corals with ages less than a few thousand years, is the correction for non-radiogenic 230Th based on an initial 230Th/232Th value (230Th/232Th0). Studies that consider coral 230Th/232Th0 values in intertidal environments are limited, and it is in these environments that corals have Th...
Authors
Hong-Wei Chiang, Belle E. Philibosian, Aron J. Meltzner, Chung-Che Wu, Chuan-Chou Shen, R. Lawrence Edwards, Chih-Kai Chuang, Bambang W. Suwargadi, Danny H. Natawidjaja
22 years of aquatic plant spatiotemporal dynamics in the upper Mississippi River 22 years of aquatic plant spatiotemporal dynamics in the upper Mississippi River
Macrophyte (aquatic plant) recovery has occurred in rivers worldwide, but assemblage patterns and habitat requirements are generally not well understood. We examined patterns of species composition and macrophyte abundance in the Upper Mississippi River (UMR), spanning 22 years of monitoring and a period of vegetation recovery. Non-metric multidimensional scaling (NMDS) ordination...
Authors
Alicia Carhart, Jason J. Rohweder, Danelle M. Larson
A new permanent, low-cost, low-power SO2 camera for continuous measurement of volcanic emissions A new permanent, low-cost, low-power SO2 camera for continuous measurement of volcanic emissions
Since its introduction to volcanology in the mid-2000 s, the SO2 camera has become an important instrument for the acquisition of accurate and high time-resolution SO2 emission rates, aiding in hazard assessment and volcanological research. However, with the exception of a few locations (Stromboli, Etna, Kīlauea), hitherto the majority of measurements have been made on discrete field...
Authors
Thomas Charles Wilkes, Tom David Pering, Felipe Aguilera, Susana Layana, Patricia A. Nadeau, Christoph Kern, Andrew J.S. McGonigle, Mauricio Aguilera, Chengxi Zhu
Population dynamics and harvest management of eastern mallards Population dynamics and harvest management of eastern mallards
Managing sustainable harvest of wildlife populations requires regular collection of demographic data and robust estimates of demographic parameters. Estimates can then be used to develop a harvest strategy to guide decision-making. Mallards (Anas platyrhynchos) are an important species in the Atlantic Flyway for many users and they exhibited exponential growth in the eastern United...
Authors
Anthony J. Roberts, Jeffrey A. Hostetler, Joshua C. Stiller, Patrick K. Devers, William Link
Multiresidue extraction of current-use pesticides from complex solid matrices using energized dispersive guided extraction with analysis by gas and liquid chromatography tandem mass spectroscopy Multiresidue extraction of current-use pesticides from complex solid matrices using energized dispersive guided extraction with analysis by gas and liquid chromatography tandem mass spectroscopy
The development of sample processing techniques that recover a broad suite of pesticides from solid matrices, while mitigating coextracted matrix interferences, and reducing processing time is beneficial for high throughput analyses. The objective of this study was to evaluate the effectiveness of an automated extraction system for pesticide analyses in solid environmental samples. An...
Authors
Gabrielle Pecora Black, Emily E. Woodward, Corey Sanders, Michael S. Gross, Michelle L. Hladik
Predicting climate change impacts on poikilotherms using physiologically guided species abundance models Predicting climate change impacts on poikilotherms using physiologically guided species abundance models
Poikilothermic animals comprise most species on Earth and are especially sensitive to changes in environmental temperatures. Species conservation in a changing climate relies upon predictions of species responses to future conditions, yet predicting species responses to climate change when temperatures exceed the bounds of observed data is fraught with challenges. We present a...
Authors
Tyler Wagner, Erin M. Schliep, Joshua S. North, Holly Kundel, Christopher A. Custer, Jenna K. Ruzich, Gretchen J.A. Hansen
Landscape transcriptomics as a tool for addressing global change effects across diverse species Landscape transcriptomics as a tool for addressing global change effects across diverse species
Landscape transcriptomics is an emerging field studying how genome-wide expression patterns reflect dynamic landscape-scale environmental drivers, including habitat, weather, climate, and contaminants, and the subsequent effects on organismal function. This field is benefitting from advancing and increasingly accessible molecular technologies, which in turn are allowing the necessary
Authors
Jason Keagy, Chloe P. Drummond, Kadeem J. Gilbert, Christina Grozinger, Jill Hamilton, Heather M. Hines, Jesse Lasky, Cheryl A. Logan, Ruairidh Sawers, Tyler Wagner
Automated soft pressure sensor array-based sea lamprey detection using machine learning Automated soft pressure sensor array-based sea lamprey detection using machine learning
Sea lamprey, a destructive invasive species in the Great Lakes in North America, is among very few fishes that rely on oral suction during migration and spawning. Recently, soft pressure sensors have been proposed to detect the attachment of sea lamprey as part of the monitoring and control effort. However, human decision is still required for the recognition of patterns in the measured...
Authors
Hongyang Shi, Yu Mei, Ian González-Afanador, Claudia Chen, Scott M. Miehls, Christopher M. Holbrook, Nelson Sepulveda, Xiaobo Tan
The Lower Cretaceous sequence of western Alaska – demise of the Koyukuk terrane? The Lower Cretaceous sequence of western Alaska – demise of the Koyukuk terrane?
Lower Cretaceous marine sedimentary rocks, deposited in shallow shelf and basin settings and unconformity-bound, are well exposed in southwest Alaska. Collections of Early Cretaceous fossils from across western Alaska show that similar and coeval Lower Cretaceous clastic rocks are widely distributed though only locally exposed. Volcanic rocks become an important part of the Lower...
Authors
Travis L. Hudson, Robert Blodgett, Frederic H. Wilson
The NEON Ecological Forecasting Challenge The NEON Ecological Forecasting Challenge
The 21st century continues to be characterized by major changes to the environment and the ecosystem services upon which society depends. Anticipating and responding to these changes requires that scientists explicitly forecast future conditions in real time (Dietze et al. 2018). Ecological forecasting, like weather and epidemiological forecasting, involves integrating data and models to...
Authors
R. Quinn Thomas, Carl Boettiger, Cayelan C. Carey, Michael Dietze, Leah R. Johnson, Melissa A. Kenney, Jason S. McLachlan, Jody A. Peters, Eric R. Sokol, Jake Weltzin, Alyssa Willson, Whitney M. Woelmer