Bathymetry of New York City’s East of Hudson reservoirs and controlled lakes, 2017 to 2019
Elizabeth A. Nystrom, Courtney J. Huston, Robert J. Welk
2021, Scientific Investigations Report 2021-5057
New York City maintains an extensive system of reservoirs and aqueducts to provide drinking water to its residents, including 16 reservoirs and controlled lakes in Westchester and Putnam Counties in southern New York, east of the Hudson River (also called “East of Hudson reservoirs and controlled lakes”). These reservoirs were...
Decision analysis of barrier placement and targeted removal to control invasive carp in the Tennessee River Basin
Max Post van der Burg, David R. Smith, Aaron R. Cupp, Mark W. Rogers, Duane Chapman
2021, Open-File Report 2021-1068
Controlling range expansion of invasive carp (specifically Hypophthalmichthys spp.) on the Tennessee River is important to conserve the ecological and economic benefits provided by the river. We collaborated with State and Federal agencies (the stakeholder group) to develop a decision framework and decision support model to evaluate strategies to control...
Sea otter population collapse in southwest Alaska: Assessing ecological covariates, consequences, and causal factors
M. Tim Tinker, James L. Bodkin, Lizabeth Bowen, Brenda Ballachey, Gena Bentall, Alexander Burdin, Heather Coletti, George G. Esslinger, Brian B. Hatfield, Michael C. Kenner, Kimberly A. Kloecker, Brenda Konar, A. Keith Miles, Daniel Monson, Michael J. Murray, Ben Weitzman, James A. Estes
2021, Ecological Monographs (91)
Sea otter (Enhydra lutris) populations in southwest Alaska declined substantially between about 1990 and the most recent set of surveys in 2015. Here we report changes in the distribution and abundance of sea otters, and covarying patterns in reproduction, mortality, body size and condition, diet and...
Recency of faulting and subsurface architecture of the San Diego Bay pull-apart basin, California, USA
Drake Moore Singleton, Jillian M. Maloney, Daniel S. Brothers, Shannon Klotsko, Neal W. Driscoll, Thomas K. Rockwell
2021, Frontiers in Earth Science (9)
In southern California, plate boundary motion between the North American and Pacific plates is distributed across several sub-parallel fault systems. The offshore faults of the California Continental Borderland (CCB) are thought to accommodate ~10-15% of the total plate boundary motion, but the exact distribution of slip and the mechanics of...
Population estimates and trends of three Maui Island-endemic Hawaiian Honeycreepers
Seth Judge, Christopher C Warren, Richard J. Camp, Laura K Berthold, Hanna L. Mounce, Patrick J. Hart, Ryan J. Monello
2021, Journal of Field Ornithology (92) 115-126
Population monitoring is critical for informing the management and conservation of rare Hawaiian forest birds. In 2017, we used point-transect distance sampling methods to estimate population densities of birds on Haleakalā Volcano on east Maui island. We estimated the populations and ranges of three island-endemic Hawaiian...
Identification of Aphanomyces invadans, the cause of epizootic ulcerative syndrome, in smallmouth bass (Micropterus dolomieu) from the Cheat River, West Virginia, USA
Heather L. Walsh, Vicki S. Blazer, Patricia M. Mazik
2021, Journal of Fish Diseases (44) 1639-1641
The oomycete Aphanomyces invadans (Saprolegniales, Oomycetes), the cause of epizootic ulcerative syndrome (EUS), is an OIE (World Organization for Animal Health) reportable pathogen, capable of infecting many fish species worldwide in both freshwater and estuarine environments (Iberahim et al. 2018). Since the discovery of EUS in Japan in 1971 (Egusa...
A decision-analytical framework for developing harvest regulations
Michael C. Runge
Kevin L. Pope, Larkin A. Powell, editor(s)
2021, Book chapter, Harvest of fish and wildlife: New paradigms for sustainable management
The development of harvest regulations for fish or wildlife is a complex decision that needs to weigh multiple objectives, consider a set of alternative regulatory options, integrate scientific understanding about the population dynamics of the harvested species as well as the human response to regulations, account for uncertainty, and provide...
Recent carbon storage and burial exceed historic rates in the San Juan Bay estuary peri-urban mangrove forests (Puerto Rico, United States)
Cathleen Wigand, Meagan J. Eagle, Benjamin Branoff, Stephen Balogh, Kenneth Miller, Rose M. Martin, Alana Hanson, Autumn Oczkowski, Evelyn Huertas, Joseph Loffredo, Elizabeth Watson
2021, Frontiers in Forests and Global Change (4)
Mangroves sequester significant quantities of organic carbon (C) because of high rates of burial in the soil and storage in biomass. We estimated mangrove forest C storage and accumulation rates in aboveground and belowground components among five sites along an urbanization gradient in the San Juan Bay Estuary, Puerto Rico....
Direct and size-mediated effects of temperature and ration-dependent growth rates on energy reserves in juvenile anadromous alewives (Alosa pseudoharengus)
Liang Guo, Stephen D. McCormick, Eric T. Schultz, Adrian Jordaan
2021, Journal of Fish Biology (99) 1236-1246
Growth rate and energy reserves are important determinants of fitness and are governed by endogenous and exogenous factors. Thus, examining the influence of individual and multiple stressors on growth and energy reserves can help estimate population health under current and future conditions. In young anadromous fishes, freshwater habitat quality determines...
NGA-East ground-motion characterization model Part II: Implementation and hazard implications
Robert Youngs, Christine A. Goulet, Yousef Bozorgnia, Nicolas Kuehn, Linda Al Atik, Robert Graves, Gail M. Atkinson
2021, Earthquake Spectra (37) 1283-1330
As a companion article to Goulet et al., we describe implementation of the NGA-East ground motion characterization (GMC) model in probabilistic seismic hazard analysis (PSHA) for sites in the Central and Eastern United States (CEUS). We present extensions to the EPRI/DOE/NRC seismic source characterization (SSC) model for...
Relative risk of groundwater-quality degradation near California (USA) oil fields estimated from 3H, 14C, and 4He
Peter B. McMahon, Matthew K. Landon, Tracy Davis, Michael Wright, Celia Z. Rosecrans, Robert Anders, Michael Land, Justin T. Kulongoski, Andrew G. Hunt
2021, Applied Geochemistry (131)
Relative risks of groundwater-quality degradation near selected California oil fields are estimated by examining spatial and temporal patterns in chemical and isotopic data in the context of groundwater-age categories defined by tritium and carbon-14. In the Coastal basins, western San Joaquin Valley (SJV),...
Effects of climate and irrigation on GRACE-based estimates of water storage changes in major US aquifers
Bridget R. Scanlon, Ahsraf Rateb, Donald R. Pool, Ward E. Sanford, Himanshu Save, Alexander Y. Sun, Di Long, Brian Fuchs
2021, Environmental Research Letters (16)
Understanding climate and human impacts on water storage is critical for sustainable water-resources management. Here we assessed climate and human drivers of total water storage (TWS) variability from Gravity Recovery and Climate Experiment (GRACE) satellites compared with drought severity and irrigation water use in 14 major aquifers...
The liquefaction record of past earthquakes in the Central Virginia Seismic Zone, Eastern United States
Martitia P. Tuttle, Kathleen Dyer-Williams, Mark W. Carter, Steven L. Forman, Kathleen Tucker, Zamara Fuentes, Carlos Velez, Laurel Bauer
2021, Seismological Research Letters (92) 3126-3144
Following the 2011 moment magnitude, M">MM 5.7 Mineral, Virginia, earthquake, we conducted a search for paleoliquefaction features and found 41 sand dikes, sand sills, and soft‐sediment deformation features at 24 sites exposed in cutbanks along several rivers:...
Sediment concentrations and loads upstream from and through John Redmond Reservoir, east-central Kansas, 2010–19
Ariele R. Kramer, Cara L. Peterman-Phipps, Matthew D. Mahoney, Bradley S. Lukasz
2021, Scientific Investigations Report 2021-5037
Streambank erosion and reservoir sedimentation are primary concerns of resource managers in Kansas and throughout many regions of the United States and negatively affect flood control, water supply, and recreation. The Cottonwood and upper Neosho Rivers drain into John Redmond Reservoir, and since reservoir completion in 1964, there has been...
Multivariate classification of the crude oil petroleum systems in southeast Texas, USA, using conventional and compositional data analysis of biomarkers
Ricardo A. Olea, J. A Martin-Fernandez, William H. Craddock
Peter Fitzmoser, Karel Hron, Josep Antoni Martin-Fernandez, Javier Palarea-Albaladejo, editor(s)
2021, Book chapter, Advances in compositional data analysis—Festschrift in honor of Vera-Pawlowsky-Glahn
Chemically, petroleum is an extraordinarily complex mixture of different types of hydrocarbons that are now possible to isolate and identify because of advances in geochemistry. Here, we use biomarkers and carbon isotopes to establish genetic differences and similarities among oil samples. Conventional approaches for evaluating biomarker and carbon isotope relative...
Greater Yellowstone climate assessment: Past, present, and future climate change in the greater Yellowstone watersheds
Steven W. Hostetler, Cathy Whitlock, Bryan Shuman, David Liefert, Charles Wolf Drimal, Scott Bischke
Jay R. Alder, Gregory T. Pederson, editor(s)
2021, Report
The Greater Yellowstone Area (GYA) is one of the last remaining large and nearly intact temperate ecosystems on Earth. GYA was originally defined in the 1970s as the Greater Yellowstone Ecosystem, which encompassed the minimum range of the grizzly bear. The boundary now includes about 22 million acres (8.9 million...
Diel patterns of predation and fledging at nests of four species of grassland songbirds
Christine Ribic, David J. Rugg, Kevin Ellison, Nicola Koper, Pamela J. Pietz
2021, Ecology and Evolution (11) 6913-6926
Although it is common for nestlings to exhibit a strong bias for fledging in the morning, the mechanisms underlying this behavior are not well understood. Avoiding predation risk has been proposed as a likely mechanism by a number of researchers. We used video surveillance records from studies of grassland birds...
A survey of storm-induced seaward-transport features observed during the 2019 and 2020 hurricane seasons
Jin-Si R. Over, Jenna A. Brown, Christopher R. Sherwood, Christie Hegermiller, Phillipe Alan Wernette, Andrew C. Ritchie, Jonathan A. Warrick
2021, Shore and Beach (89) 31-40
Hurricanes are known to play a critical role in reshaping coastlines, but often only impacts on the open ocean coast are considered, ignoring seaward-directed forces and responses. The identification of subaerial evidence for storm-induced seaward transport is a critical step towards understanding its impact on coastal resiliency. The visual features,...
Ecological effects of climate-driven salinity variation in the San Francisco Estuary: Can we anticipate and manage the coming changes?
Cameron K Chalambor, Edward S. Gross, Edwin D. Grosholz, Ken M Jeffries, John L. Largier, Stephen D. McCormick, Ted Sommer, Jonathan P Velotta, Andrew Whitehead
2021, San Francisco Estuary and Watershed Science (19) article 3
Climate change-driven sea level rise and altered precipitation regimes are predicted to alter patterns of salt intrusion within the San Francisco Estuary. A central question is: Can we use existing knowledge and future projections to predict and manage the anticipated ecological impacts?...
Perfluoroalkyl substances in plasma of smallmouth bass from the Chesapeake Bay Watershed
Vicki S. Blazer, Stephanie E. Gordon, Heather L. Walsh, Cheyenne R. Smith
2021, International Journal of Environmental Research and Public Health (11)
Smallmouth bass Micropterus dolomieu is an economically important sportfish and within the Chesapeake Bay watershed has experienced a high prevalence of external lesions, infectious disease, mortality events, reproductive endocrine disruption and population declines. To date, no clear or consistent associations with contaminants measured in fish tissue or surface water have been...
Flow characteristics and salinity patterns in tidal rivers within the northern Ten Thousand Islands, southwest Florida, water years 2007–19
Amanda C. Booth, Travis M. Knight
2021, Scientific Investigations Report 2021-5028
Freshwater flow to the Ten Thousand Islands (TTI) estuary has been altered by the construction of the Tamiami Trail and construction of features in the now defunct Southern Golden Gate Estates development. This development included four associated canals that combine into the Faka Union Canal, which discharges into the TTI...
Onset and evolution of Kilauea’s 2018 flank eruption and summit collapse from continuous gravity
Michael Poland, Daniele Carbone, Matthew R. Patrick
2021, Earth and Planetary Science Letters (567)
Prior to the 2018 lower East Rift Zone (ERZ) eruption and summit collapse of Kīlauea Volcano, Hawai‘i, continuous gravimeters operated on the vent rims of ongoing eruptions at both the summit and Pu‘u ‘Ō‘ō. These instruments captured the onset of the 2018 lower ERZ eruption and the effects of lava...
Do crayfish affect stream ecosystem response to riparian vegetation removal?
Maura P. Dudley, Kelsey Solomon, Seth J. Wenger, C. Rhett Jackson, Mary Freeman, Katherine J. Elliott, Chelcy F. Miniat, Catherine M. Pringle
2021, Freshwater Biology (66) 1423-1435
1. Riparian vegetation management alters stream basal resources, but stream ecosystem responses partly depend on top-down interactions with in-stream consumers. Large-bodied omnivores can exert particularly strong influences on stream benthic environments through consumption of food resources and physical disturbance of the benthos. Trophic dynamics studies conducted within the context of...
Sin Nombre virus prevalence from 2014–2017 in wild deer mice, Peromyscus maniculatus, on five of the California Channel Islands
John L. Orrock, Brian Connolly, Peter Guiden, Jennifer L. Chandler, Gebbiena M. Bron, Charles A. Drost, David K. Garcelon
2021, Zoonoses and Public Health (68) 849-853
Sin Nombre virus (SNV) is a zoonotic virus that is highly pathogenic to humans. The deer mouse, Peromyscus maniculatus, is the primary host of SNV, and SNV prevalence in P. maniculatus is an important indicator of human disease risk. Because the California Channel Islands contain permanent human settlements, receive hundreds of thousands of visitors...
Time marches on, but do the causal pathways driving instream habitat and biology remain consistent?
Richard H Walker, Matthew J. Ashton, Matthew J. Cashman, Rosemary M. Fanelli, Kevin P. Krause, Gregory E. Noe, Kelly O. Maloney
2021, Science of the Total Environment (789)
Stream ecosystems are complex networks of interacting terrestrial and aquatic drivers. To untangle these ecological networks, efforts evaluating the direct and indirect effects of landscape, climate, and instream predictors on biological condition through time are needed. We used structural equation modeling and leveraged a...
