From Manitoba to Texas: A study of the population genetic structure of bur oak (Quercus macrocarpa)
Mira Garner, Kasey Pham, Alan T. Whittemore, Jeannine Cavender-Bares, Paul F. Gugger, Paul Manos, Ian S. Pearse, Andrew Hipp
2019, International Oaks (20) 131-138
In the taxonomic world, the oaks are known as a rambunctious group, notorious for hybridizing. In this report, we present preliminary information to address the question of how much hybridization is occurring between bur oak and white oaks with which it is sympatric, through rangewide sampling of bur oak and...
White-tailed deer movements and space use on Fire Island: A four-year radio-telemetry study 2015-2016 post-Hurricane Sandy assessment
Chellby R. Kilheffer, Jordan Raphael, Lindsay Ries, H. Brian Underwood
2019, Natural Resource Report 2019/2037
Hurricane Sandy provided a unique opportunity to better understand the movements of Fire Island’s dense white-tailed deer (Odocoileus virginianus borealis) herds. White-tailed deer inhabit all areas of Fire Island National Seashore and their high densities negatively affect native vegetation in several areas of the island, especially as disturbed areas attempt...
What nutrient sources support anomalous growth and the recent sargassum mass stranding on Caribbean beaches? A review
Candace Oviatt, Kristin Huizenga, Caroline Rogers, Jeff Miller
2019, Marine Pollution Bulletin (145) 517-525
Since 2011, tropical beaches from Africa to Brazil, Central America, and the Caribbean have been inundated by tons of sargassum seaweed from a new equatorial source of pelagic sargassum in the Atlantic. In recent years the extraordinary accumulations of sargassum make this a nuisance algal bloom for tropical coasts. In...
Proactive management of amphibians: Challenges and opportunities
SC Sterrett, Evan H. Campbell Grant, Katz R, Adrianne Brand, William R. Fields, A Dietrich, Hocking D, Foreman T, A Wiewel
2019, Biological Conservation (236) 404-410
Delaying species management reduces the chance of successful recovery, increases the risk of extinction, and can be expensive. Acting before major declines are realized affords access to a greater suite of cost-effective management actions to sustain populations, reducing the likelihood of declines warranting protected status. It is clear that reactive...
Mapping research on hydropower and sustainability in the Brazilian Amazon: Advances, gaps in knowledge and future directions
Simone Athayde, Mason Matthews, Stephanie Bohlman, Walterlina Brasil, Carolina RC Doria, Jynessa Dutka-Gianelli, Philip M. Fearnside, Bette Loiselle, Elineide E Marques, Theodore Melis, Brent Millikan, Evandro M. Moretto, Anthony Oliver-Smith, Amintas Rossete, Raffaele Vacca, David Kaplan
2019, Current Opinion in Environmental Sustainability (37) 50-69
In the last twenty years, multiple large and small hydroelectric dams have begun to transform the Amazonian region, spawning a growing volume of academic research across diverse disciplinary and interdisciplinary fields. In this article, we offer a critical review of recent research related to hydropower and sustainability with a focus...
Documentation of a Soil-Water-Balance Model to estimate recharge to Blue Ridge, Piedmont, and Mesozoic Basin fractured-rock aquifers, Fauquier County, Virginia, 1996 through 2015
Kurt J. McCoy, David E. Ladd
2019, Scientific Investigations Report 2019-5056
This report documents a Soil-Water-Balance (SWB) model that was developed for an area covering the Blue Ridge, Piedmont, and Mesozoic basin fractured-rock aquifers in Fauquier County, Virginia, for the calendar years 1996–2015. The SWB model includes an area of 1,498 square miles, divided into 1,076-square-foot (100-square-meter) grid cells on which...
Insect herbivores on urban native oak trees
Ian Pearse
2019, International Oaks (30) 101-108
Oak trees host an amazing diversity of insects, many of which specialize on Quercus species. Oak species and genotypes are commonly planted far from where an acorn was produced. Urban plantings, restoration sites, and plantings anticipating climate change each cause this to happen. What evidence exists that provenance of oak...
Barred Owls reduce occupancy and breeding propensity of Northern Spotted Owl in a Washington old-growth forest
Anna O. Mangan, Tara Chestnut, Jody C. Vogeler, Ian K. Breckheimer, Wendy M. King, Keith E. Bagnall, Katie Dugger
2019, Ornithological Applications (121)
Protected lands like national parks are important refuges for threatened and endangered species as environmental pressures on wildlife and their habitats increase. The Northern Spotted Owl (Strix occidentalis caurina), a species designated as threatened under the Endangered Species Act, occurs on public lands throughout the western United States including Mount...
Responding to risky neighbors: Testing for spatial spillover effects for defensible space in a fire-prone WUI community
Travis Warziniack, Patricia A. Champ, James Meldrum, Hannah Brenkert-Smith, Christopher M. Barth, Lilia C. Falk
2019, Environmental and Resource Economics (73) 1023-1047
Often, factors that determine the risk of an environmental hazard occur at landscape scales, and risk mitigation requires action by multiple private property owners. How property owners respond to risk mitigation on neighboring lands depends on whether mitigation actions are strategic complements or strategic substitutes. We test for these neighbor...
Understanding fish assemblage structure in lentic ecosystems: Relative effects of abiotic factors and management legacies
Jesse Robert Fischer, Michael C. Quist
2019, North American Journal of Fisheries Management (39) 607-624
We investigated associations of fish assemblages and habitat characteristics (e.g., morphology and water chemistry) from 45 natural lakes and reservoirs in Iowa to determine whether species or trophic guild composition and environmental correlations were concordant between waterbodies of different origins. Overall, fish assemblage composition between natural...
Magmatic-hydrothermal gold mineralization at the Lone Tree Mine, Battle Mountain district, Nevada
Elizabeth A. Holley, Justin Lowe, Craig A. Johnson, Michael Pribil
2019, Economic Geology (114) 811-856
The Lone Tree deposit is located in the northern Battle Mountain mining district, Nevada. Prior to mine closure in 2006, Santa Fe Pacific Gold and Newmont produced 4.2 Moz of gold at an average grade of 2.06 g/t at Lone Tree, primarily from the N-S– to NNW-SSE–striking Wayne zone. The...
Hydroclimatology of the Mississippi River Basin
Gregory J. McCabe, David M. Wolock
2019, Journal of the American Water Resources Association (55) 1053-1064
Model estimated monthly water balance (WB) components (i.e., potential evapotranspiration, actual evapotranspiration, and runoff [R]) for 848 United States (U.S.) Geological Survey 8-digit hydrologic units located in the Mississippi River Basin (MRB) are used to examine the temporal and spatial variability of the MRB WB for water years 1901 through...
Informing planning and management through visitor experiences in Grand Staircase-Escalante National Monument
Derrick Taff, Jeremy Wimpey, Jeffrey L. Marion, Johanna Arredondo, Fletcher Meadema, Forrest Schwartz, Ben Lawhon, Cody Dems
2019, International Journal of Wilderness (2) 44-56
Policies mandate that managers at Grand Staircase-Escalante National Monument must balance recreational opportunities with a variety of resource management and utilization activities across a vast and diverse landscape containing numerous Wilderness Study Areas and other lands containing spectacular resources. This balancing act is stressed by increasing levels of use and...
Operationalizing small unoccupied aircraft systems for rapid flood inundation mapping and event response
Frank L. Engel, Rogelio Hernandez
2019, Conference Paper, Proceedings of SEDHYD 2019
Small Unoccupied Aircraft Systems (sUAS) offer the capability to collect rapid and accurate aerial survey data during flood response. The rapid collection of aerial flood data can potentially enable scientists to produce detailed geospatial products and related datasets in time for decisional support. A workflow for sUAS event response before,...
Intra- and interspecific variation in production of bile acids that act as sex pheromones in lampreys
Tyler John Buchinger, Ugo Bussy, Ke Li, Liang Jia, Cindy F. Baker, Ethan G. Buchinger, Zhang Zhen, Nicholas S. Johnson, Weiming Li
2019, Physiological and Biochemical Zoology (92) 463-472
Pheromones are important sexual signals in most animals, but research into their evolution is largely biased toward insects. Lampreys are a jawless fish with a relatively well-understood pheromone communication system and offer a useful opportunity to study pheromone evolution in a vertebrate. Once sexually mature, male sea lamprey (Petromyzon marinus),...
Simulations of hydrology and water quality for irrigated fields near Yakima, Washington
Richard M. Webb
2019, Conference Paper, Working watersheds and coastal systems: Research and management for a changing future — Proceedings of the Sixth Interagency Conference on Research in the Watersheds
Reliable tools are needed by farmers and managers to estimate and mitigate impacts of altered hydrology and degraded water quality downstream of agricultural areas. The Water, Energy, and Biogeochemical Model (WEBMOD) (Webb and Parkhurst 2017) was used to simulate daily variations of hydrology and water quality for 5 square kilometers...
Phylogeny and foraging mode correspond with thiaminase activity in freshwater fishes: Potential links to environmental factors
Daniel E Spooner, Kristin Boggs, Dustin R. Shull, Dale C. Honeyfield, Timothy Wertz, Stephanie Sweet
2019, Freshwater Science (3) 605-615
Knowledge of the dietary components of fish species is important for understanding their growth, survival, and recruitment. Deficiency in thiamine (vitamin B1) leading to reproductive failure and physiological illness among freshwater fishes has been attributed to thiaminase activity in fish in the Great Lakes and the New York Finger Lakes,...
(U-Th)/He zircon dating of Chesapeake Bay distal impact ejecta from ODP site 1073
M.B. Biren, J.-A. Wartho, van Soest, K.V. Hodges, H. Cathey, B.P. Glass, C. Koeberl, J. Wright Horton Jr., W. Hale
2019, Meteoritics and Planetary Science (54) 1840-1852
Single crystal (U‐Th)/He dating has been undertaken on 21 detrital zircon grains extracted from a core sample from Ocean Drilling Project (ODP) site 1073, which is located ~390 km northeast of the center of the Chesapeake Bay impact structure. Optical and electron imaging in combination with energy dispersive X‐ray microanalysis (EDS)...
High-Resolution mapping of biomass and distribution of marsh and forested wetlands in southeastern coastal Louisiana
Nathan Thomas, Marc Simard, Edward Castaneda-Moya, Kristin B. Byrd, Lisamarie Windham-Myers, Azure Bevington, Robert Twilley
2019, International Journal of Applied Earth Observation and Geoinformation (80) 257-267
This study estimates herbaceous and forested wetland coverage and aboveground biomass (AGB) within the Atchafalaya and Terrebonne coastal basins representing sediment rich and sediment poor coastal regions of southern Louisiana. Louisiana coastal wetlands account for approximately one third (37%) of the estuarine wetland area in the conterminous United States, yet...
Cross-scale interactions dictate regional lake carbon flux and productivity response to future climate
Jacob Aaron Zwart, Zachary J Hanson, Jordan Read, Michael N. Fienen, Alan F. Hamlet, Diogo Bolster, Stuart E. Jones
2019, Geophysical Research Letters (46) 8840-8851
Lakes support globally important food webs through algal productivity and contribute significantly to the global carbon cycle. However, predictions of how broad-scale lake carbon flux and productivity may respond to future climate are extremely limited. Here, we used an integrated modeling framework to project changes in lake-specific...
Pacific Northwest Aquatic Monitoring Partnership 2018 Annual Report
Megan M. Dethloff, Amy L. Puls, Rebecca A. Scully, Sheryn J. Olson, Jennifer M. Bayer, Samuel A. Cimino
2019, Report
The Pacific Northwest Aquatic Monitoring Partnership (PNAMP) continued to promote the integration of monitoring resources and development of tools to support monitoring in 2018. Improved coordination and integration of goals, objectives, and activities among Pacific Northwest monitoring programs is essential to improving the quality and consistency of monitoring in the...
Timescales of water-quality change in a karst aquifer, south-central Texas
MaryLynn Musgrove, John E. Solder, Stephen P. Opsahl, Jennifer T. Wilson
2019, Journal of Hydrology X (4)
Understanding the drivers and timescales over which groundwater quality changes informs groundwater management, use, and protection. To better understand timescales of water-quality change over short (daily to monthly) and long (seasonal to decadal) timescales, the U.S. Geological Survey’s National Water-Quality Assessment (NAWQA) Enhanced Trends Network (ETN) program instrumented and sampled...
Semantically supported linked data mapping
Dalia E. Varanka
2019, Report, 2019 US national report (US National Committee for the International Cartographic Association)
Semantic technology based on the Resource Description Framework (RDF) modeling environment has introduced new data management capabilities that can lead to innovative cartographic techniques. This report describes research toward more semantically expressive linked geospatial data mapping, topics of research, and an avenue for further international collaboration....
Lithostratigraphic, geophysical, and hydrogeologic observations from a boring drilled to bedrock in glacial sediments near Nantucket Sound in East Falmouth, Massachusetts
Robert B. Hull, Carole D. Johnson, Byron D. Stone, Denis R. LeBlanc, Timothy D. McCobb, Stephanie N. Phillips, Katherine L. Pappas, John W. Lane Jr.
2019, Scientific Investigations Report 2019-5042
In spring 2016, a 310-foot-deep boring (named MA–FSW 750) was drilled by the U.S. Geological Survey near Nantucket Sound in East Falmouth, Massachusetts, to investigate the hydrogeology of the southern coast of western Cape Cod. Few borings that are drilled to bedrock exist in the area, and the study area...
Drought in the U.S. Caribbean:Impacts to Coastal Estuary Ecosystems
Brent Murry, Miguel Garcia-Bermudez, Shelley Crausbay, Kate Malpeli
2019, Conference Paper, U.S. Caribbean drought workshop
The topography of Puerto Rico and the U.S. Virgin Islands (USVI) is characterized by steep terrain and short distances to the sea. This means that freshwater runs off the islands quickly, coming into contact with seawater in coastal estuaries. The physical characteristics of estuaries change as the tides rise and...
