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Page 309, results 7701 - 7725

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Development of the LCMAP annual land cover product across Hawai'i
Congcong Li, George Z. Xian, Danika F. Wellington, Kelcy Smith, Josephine Horton, Qiang Zhou
2022, International Journal of Applied Earth Observation and Geoinformation (113)
Following the completion of land cover and change (LCC) products for the conterminous United States (CONUS), the U.S. Geological Survey's (USGS’s) Land Change Monitoring, Assessment, and Projection initiative has broadened the capability of characterizing continuous historical land change across the full Landsat records for Hawaiʻi at 30-meter resolution. One of the challenges of implementing...
Variability in prion protein genotypes by spatial unit to inform susceptibility to chronic wasting disease
Alberto Fameli, Jessie Edson, Jeremiah E. Banfield, Christopher S. Rosenberry, W. David Walter
2022, Prion (16) 254-264
Chronic wasting disease (CWD) is a fatal encephalopathy affecting North American cervids. Certain alleles in a host’s prion protein gene are responsible for reduced susceptibility to CWD. We assessed for the first time variability in the prion protein gene of elk (Cervus canadensis) present in Pennsylvania, United States of America,...
Climate change alters aging patterns of reservoir aquatic habitats
Leandro E. Miranda, N.M. Faucheux
2022, Climatic Change (174)
Two slow-moving developments are threatening reservoir aquatic habitats globally: aging and climate change. These events are projected to transform reservoir aquatic habitats in various and often unpredictable ways. Aging affects in-lake habitats directly, whereas climate change affects both in-lake and off-lake conditions. Climate change is expected to accelerate and, in...
Influence of riparian thinning on trophic pathways supporting stream food webs in forested watersheds
David A. Roon, Jason B. Dunham, J. Ryan Bellmore, Deanna H. Olson, Bret C. Harvey
2022, Ecosphere (13)
Resource managers seek to thin second-growth riparian forests to address multiple stream and riparian management objectives, including enhancing aquatic productivity via light-mediated trophic pathways in watersheds of the Pacific Northwest (USA). However, such increases in aquatic productivity depend on complex food web dynamics that link riparian forests and streams. To...
New strategies for characterizing genetic structure in wide-ranging, continuously distributed species: a Greater Sage-grouse case study
Sara J. Oyler-McCance, Todd B. Cross, Jeffery R. Row, Michael K. Schwartz, Dave E. Naugle, Jennifer A. Fike, Kristopher J. Winiarski, Brad C. Fedy
2022, PLoS ONE (17)
Characterizing genetic structure across a species’ range is relevant for management and conservation as it can be used to define population boundaries and quantify connectivity. Wide-ranging species residing in continuously distributed habitat pose substantial challenges for the characterization of genetic structure as many analytical methods used are less effective when...
Partial observability and management of ecological systems
Byron K. Williams, Ellie Brown
2022, Ecology and Evolution (12)
The actual state of ecological systems is rarely known with certainty, but management actions must often be taken regardless of imperfect measurement (partial observability). Because of the difficulties in accounting for partial observability, it is usually treated in an ad hoc fashion, or simply...
Potential effects of energy development on environmental resources of the Williston Basin in Montana, North Dakota, and South Dakota—Water resources
Timothy T. Bartos, Steven K. Sando, Todd M. Preston, Gregory C. Delzer, Robert F. Lundgren, Rochelle A. Nustad, Rodney R. Caldwell, Zell E. Peterman, Bruce D. Smith, Kathleen M. Macek-Rowland, David A. Bender, Jill D. Frankforter, Joel M. Galloway
2022, Scientific Investigations Report 2017-5070-C
The Williston Basin has been a leading oil and gas producing area for more than 50 years. While oil production initially peaked within the Williston Basin in the mid-1980s, production rapidly increased in the mid-2000s, largely because of improved horizontal (directional) drilling and hydraulic fracturing methods. In 2012, energy development...
Potential effects of energy development on environmental resources of the Williston Basin in Montana, North Dakota, and South Dakota—Physiography, climate, land use, and demographics
Kevin C. Vining, Joanna N. Thamke, Max Post van der Burg
2022, Scientific Investigations Report 2017-5070-B
The Williston Basin has been a leading domestic oil and gas producing region. As energy demands have increased, so has energy development. A group of 13 Federal agencies and Tribal groups formed the Bakken Federal Executive Group to address common challenges associated with energy development, with a focus on understanding...
Potential effects of energy development on environmental resources of the Williston Basin in Montana, North Dakota, and South Dakota—Executive summary
Max Post van der Burg, Kevin C. Vining, Jill D. Frankforter
2022, Scientific Investigations Report 2017-5070-A
Executive SummaryThe Williston Basin, which includes parts of Montana, North Dakota, and South Dakota in the United States and parts of Manitoba and Saskatchewan in Canada, has been explored as a potential source of energy resources since the early 20th century; however, commercially viable petroleum drilling and recovery began in...
Potential effects of energy development on environmental resources of the Williston Basin in Montana, North Dakota, and South Dakota—Species of conservation concern
Max Post van der Burg, Amy J. Symstad, Lawrence D. Igl, David M. Mushet, Diane L. Larson, Glen A. Sargeant, David D. Harper, Aida M. Farag, Brian A. Tangen, Michael J. Anteau
2022, Scientific Investigations Report 2017-5070-D
The ecosystems of the Williston Basin provide direct and indirect benefits to society. These benefits include carbon sequestration, flood control, nutrient rich soils for agricultural productivity, and habitat for wildlife. This chapter’s main focus is on the effects of energy development on species that occupy the ecosystems in the Williston...
Potential effects of energy development on environmental resources of the Williston Basin in Montana, North Dakota, and South Dakota
2022, Scientific Investigations Report 2017-5070
About this volumeThe Williston Basin, which includes parts of Montana, North Dakota, and South Dakota in the United States, has been a leading domestic oil and gas producing area. To better understand the potential effects of energy development on environmental resources in the Williston Basin, the U.S. Geological Survey, in...
Assessment of undiscovered conventional oil and gas resources in Paleozoic total petroleum systems of the Central European Basin system, 2019
Christopher J. Schenk, Tracey J. Mercier, Cheryl A. Woodall, Heidi M. Leathers-Miller, Phuong A. Le, Ronald M. Drake II, Michael E. Brownfield
2022, Fact Sheet 2022-3066
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 278 million barrels of oil and 25.7 trillion cubic feet of gas in Paleozoic total petroleum systems of the Central European Basin System....
Mountain rivers reveal the earthquake hazard of geologic faults in Silicon Valley
Felipe Aron, Samuel Johnstone, Andreas Mavrommatis, Robert M. Sare, Frantz Maerten, Jack Loveless, Curtis W Baden, George E. Hilley
2022, Geophysical Research Letters (49)
The 1989, Mw = 6.9 Loma Prieta earthquake resulted in tens of lives lost and cost California almost 3% of its gross domestic product. Despite widespread damage, the earthquake did not clearly rupture the surface, challenging the identification and characterization of these hidden hazards. Here, we show that they can be illuminated by...
Integrated modeling of dynamic marsh feedbacks and evolution under sea-level rise in a mesotidal estuary (Plum Island, MA, USA)
Karim Alizad, James T. Morris, Matthew V. Bilskie, Davina Passeri, Scott C. Hagen
2022, Water Resources Research (58)
Around the world, wetland vulnerability to sea-level rise (SLR) depends on different factors including tidal regimes, topography, creeks and estuary geometry, sediment availability, vegetation type, etc. The Plum Island estuary (PIE) is a mesotidal wetland system on the east coast of the United States. This research applied a newly updated...
Climate change weakens the impact of disturbance interval on the growth rate of natural populations of Venus flytrap
Allison M Louthan, Melina Keighron, Elsita Kiekebusch, Heather Cayton, Adam J. Terando, William F. Morris
2022, Ecological Monographs (92)
Disturbances elicit both positive and negative effects on organisms; these effects vary in their strength and their timing. Effects of disturbance interval (i.e., the length of time between disturbances) on population growth will depend on both the timing and strength of positive and negative effects of disturbances. Climate change can...
A machine learning approach to predicting equilibrium ripple wavelength
Ryan E. Phillip, Allison M. Penko, Margaret L. Palmsten, Carter B. DuVal
2022, Environmental Modeling and Software (157)
Sand ripples are geomorphic features on the seafloor that affect bottom boundary layer dynamics including wave attenuation and sediment transport. We present a new equilibrium ripple predictor using a machine learning approach that outputs a probability distribution of wave-generated equilibrium wavelengths and statistics including an estimate of ripple height, the...
Sedimentary organics in Glen Torridon, Gale Crater, Mars: Results from the SAM instrument suite and supporting laboratory analyses
Maeva Millan, Amy Williams, Amy McAdam, Jennifer Eigenbrode, A. Steele, C Freissinet, D. P. Glavin, C. Szopa, A. Buch, Roger E. Summons, J. M. T. Lewis, G. M. Wong, C. H. House, B. Sutter, O. McIntosh, A. B. Bryk, H. B. Franz, C. Pozarycki, J. C. Stern, R. Navarro-Gonzalez, R. H. Williams, D. P. Archer, V. Fox, Kristen A. Bennett, S. Teinturier, C. Malespin, S. S. Johnson, P. R. Mahaffy
2022, JGR Planets (127)
The Sample Analysis at Mars (SAM) suite instrument on board NASA's Curiosity rover has characterized the inorganic and organic chemical composition of seven samples from the Glen Torridon (GT) clay-bearing unit. A variety of organic molecules were detected with SAM using pyrolysis (up to ∼850°C) and wet chemistry experiments...
Forecasting explosions at Sinabung Volcano, Indonesia, based on SO2 emission rates
Syegi Kunrat, Christoph Kern, Hilma Alfianti, Allan Lerner
2022, Frontiers in Earth Science (10)
Dome-building volcanic eruptions are often associated with frequent Vulcanian explosions, which constitute a substantial threat to proximal communities. One proposed mechanism driving such explosions is the sealing of the shallow volcanic system followed by pressurization due to gas accumulation beneath the seal. We investigate this hypothesis at Sinabung...
Geology and stratigraphic correlation of the Murray and Carolyn Shoemaker formations across the Glen Torridon region, Gale crater, Mars
Christopher M. Fedo, Alexander Bryk, Lauren A. Edgar, Kristen A. Bennett, Valerie K. Fox, William E. Dietrich, Steve G. Banham, Sanjeev Gupta, Kathryn M. Stack, Rebecca Williams, John P. Grotzinger, Nathan Stein, Dave Rubin, Gwenael Caravaca, Ray E. Arvidson, Madison N Hughes, Abigail A. Fraeman, Ashwin R. Vasavada, Juergen Schieber, Brad Sutter
2022, Journal of Geophysical Research: Planets (127)
The Glen Torridon (GT) region within Gale crater, Mars, occurs in contact with the southern side of Vera Rubin ridge (VRR), a well-defined geomorphic feature that is comparatively resistant to erosion. Prior to detailed ground-based investigation of GT, its geologic relationship with VRR was unknown. Distinct lithologic...
Hepatic gene expression profiling of American kestrels (Falco sparverius) exposed in ovo to three alternative brominated flame retardants
Christopher G. Goodchild, Natalie Karouna-Renier, Ryan P. Braham, Paula F. P. Henry, Robert J. Letcher, Kim J. Fernie
2022, Biology (11)
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...
Atlantic spotted and bottlenose dolphin sympatric distribution in nearshore waters off Bimini, The Bahamas, 2003–2018
Alexis L. Levengood, Kelly Melillo-Sweeting, Christine Ribic, Albert J. Beck, Kathleen M. Dudzinski
2022, Caribbean Journal of Science (52) 162-176
Within nearshore waters off Bimini, The Bahamas, Atlantic spotted (Stenella frontalis) and common bottlenose (Tursiops truncatus) dolphins are sympatric but separated spatially in different geographic areas and water depth ranges. Afternoon surveys during summer months across a 16-year period showed S. frontalis used the northern part of the nearshore area more, while T....
Climate matching with the climatchR R package
Richard A. Erickson, Peder S Engelstad, Catherine S. Jarnevich, Helen Sofaer, Wesley M. Daniel
2022, Environmental Software & Modeling (157)
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...
The influence of satellite-derived environmental and oceanographic parameters on marine turtle time at surface in the Gulf of Mexico
Kelsey E. Roberts, Lance P. Garrison, Joel G. Ortega-Ortiz, Chuanmin Hu, Yingjun Zhang, Christopher R. Sasso, Margaret Lamont, Kristen Hart
2022, Remote Sensing (14)
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...
Development of a ddPCR assay for the detection of the Smoky Madtom (Noturus baileyi) from eDNA in stream water samples
Aaron Aunins, Michael S. Eackles, Paul E Super, Matt A. Kulp, Becky J Nichols, Barbara A. Lubinski, Cheryl L. Morrison, Timothy L. King
2022, Conservation Genetics Resources (14) 429-435
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...