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Hepatic gene expression profiling of American kestrels (Falco sparverius) exposed in ovo to three alternative brominated flame retardants
A number of brominated flame retardants (BFRs) have been reported to interfere with the thyroid signaling pathway and cause oxidative stress in birds, yet the underlying shifts in gene expression associated with these effects remain poorly understood. In this study, we measured hepatic transcriptional responses of 31 genes in American kestrel (Falco sparverius) hatchlings following in ovo exposure
Authors
Christopher G. Goodchild, Natalie K. Karouna-Renier, Ryan P. Braham, Paula F. P. Henry, Robert J. Letcher, Kim J. Fernie
Climate matching with the climatchR R package
Climate matching allows comparisons of climatic conditions between different locations to understand location and species range climatic suitability. The approach may be used as part of horizon scanning exercises such as those conducted for invasive species. We implemented the CLIMATCH algorithm into an R package, climatchR. The package allows automated and scripted climate matching exercises acro
Authors
Richard A. Erickson, Peder S Engelstad, Catherine S. Jarnevich, Helen Sofaer, Wesley M. Daniel
The influence of satellite-derived environmental and oceanographic parameters on marine turtle time at surface in the Gulf of Mexico
The aftermath of the 2010 Deepwater Horizon oil spill highlighted the lack of baseline spatial, behavioral, and abundance data for many species, including imperiled marine turtles, across the Gulf of Mexico. The ecology of marine turtles is closely tied to their vertical movements within the water column and is therefore critical knowledge for resource management in a changing ocean. A more compre
Authors
Kelsey E. Roberts, Lance P. Garrison, Joel G. Ortega-Ortiz, Chuanmin Hu, Yingjun Zhang, Christopher R. Sasso, Margaret Lamont, Kristen Hart
Development of a ddPCR assay for the detection of the Smoky Madtom (Noturus baileyi) from eDNA in stream water samples
The Smoky Madtom Noturus baileyi is a federally endangered species, whose native distribution includes lower Abrams Creek in Great Smoky Mountains National Park (GRSM) and Citico Creek in nearby Cherokee National Forest. Due to challenges for bio-monitoring posed by its nocturnality and cryptic life history, an environmental DNA (eDNA)-based approach for detection would be useful to complement exi
Authors
Aaron Aunins, Michael S. Eackles, Paul E Super, Matt A. Kulp, Becky J Nichols, Barbara A. Lubinski, Cheryl L. Morrison, Timothy L. King
Using ecosystem services to identify inequitable outcomes in migratory species conservation
Biodiversity conservation efforts have been criticized for generating inequitable socio-economic outcomes. These equity challenges are largely analyzed as place-based problems affecting local communities directly impacted by conservation programs. The conservation of migratory species extends this problem geographically since people in one place may benefit while those in another bear the costs of
Authors
Charles C. Chester, Aaron M. Lien, Juanita Sundberg, James E. Diffendorfer, Columba Gonzales, Brady J. Mattsson, Rodrigo Medellin, Darius J. Semmens, Wayne E. Thogmartin, Jonathan J. Derbridge, Laura López-Hoffman
How USGS gages are used in flood forecasting
The U.S. Geological Survey (USGS) operates an extensive nationwide network of stream, rain, and groundwater gages. These instruments are used to monitor how much water there is across the Nation at any given moment. Stream data are collected at streamgages every 15 minutes, transmitted to USGS servers, and updated online in real time. To improve awareness of current water conditions and possible f
Authors
Steven Sobieszczyk
Assessment of undiscovered conventional oil and gas resources of the West Siberian Basin Province, Russia, 2020
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean conventional resources of 12.9 billion barrels of oil and 684.3 trillion cubic feet of gas in the West Siberian Basin Province of Russia.
Authors
Christopher J. Schenk, Tracey J. Mercier, Geoffrey S. Ellis, Cheryl A. Woodall, Phuong A. Le, Heidi M. Leathers-Miller, Ronald M. Drake
Hydrologic connectivity and residence time affect the sediment trapping efficiency and dissolved oxygen concentrations of the Atchafalaya River Basin
Little is known about water movement, volume, or residence time (RT), and how those characteristics affect sediment trapping efficiency (TE) and dissolved oxygen concentrations (DO) in the United States' largest remaining bottomland hardwood swamp, the Atchafalaya River Basin. To better understand these dynamics, this study used bathymetry, lidar, and stage records to determine volumes in the Basi
Authors
Daniel Kroes, Richard Day, Michael D. Kaller, Charles R. Demas, William E. Kelso, Tiffany Pasco, Raynie Harlan, Steven Roberts
A reproducible and reusable pipeline for segmentation of geoscientific imagery
Segmentation of Earth science imagery is an increasingly common task. Among modern techniques that use Deep Learning, the UNet architecture has been shown to be a reliable for segmenting a range of imagery. We developed software–Segmentation Gym–to implement a data-model pipeline for segmentation of scientific imagery using a family of UNet models. With an existing set of imagery and labels, the s
Authors
Daniel Buscombe, Evan B. Goldstein
Rapid SNP genotyping, sex identification, and hybrid-detection in threatened bull trout
We developed new bull trout genetic markers using Restriction-site Associated DNA sequencing (RAD-seq) to improve our ability to address questions important for their conservation and management. Samples from across the species range were sequenced and 5020 high quality single nucleotide polymorphism (SNP) loci were discovered, including hundreds with high heterozygosity (H > 0.30). We developed 6
Authors
Stephen J. Amish, Shana Bernall, Patrick W. DeHaan, Michael A. Miller, Sean M. O'Rourke, Matthew Boyer, Clint C. Muhlfeld, Angela Lodmell, Robb F. Leary, Gordon Luikart
Simulation of heat flow in a synthetic watershed: Lags and dampening across multiple pathways under a climate-forcing scenario
Although there is widespread agreement that future climates tend toward warming, the response of aquatic ecosystems to that warming is not well understood. This work, a continuation of companion research, explores the role of distinct watershed pathways in lagging and dampening climate-change signals. It subjects a synthetic flow and transport model to a 30-year warming signal based on climate pro
Authors
Daniel T. Feinstein, Randall J. Hunt, Eric D. Morway