Planetary geologic mapping—Program status and future needs
James A. Skinner Jr., Alexandra E. Huff, Corey M. Fortezzo, Tenielle Gaither, Trent M. Hare, Marc A. Hunter, Holly Buban
2019, Open-File Report 2019-1012
The United States Geological Survey’s (USGS) Planetary Geologic Map Coordination Group (Flagstaff, Ariz.) surveyed planetary geoscience map makers and users to determine the importance, relevance, and usability of such products to their planetary science research and to current and future needs of the planetary science community. This survey was...
Mapping a keystone shrub species, huckleberry (Vaccinium membranaceum), using seasonal colour change in the Rocky Mountains
Carolyn R. Shores, Nathaniel Mikle, Tabitha A. Graves
2019, International Journal of Remote Sensing (40) 5695-5715
Black huckleberries (Vaccinium membranaceum) provide a critical food resource to many wildlife species, including apex omnivores such as the grizzly bear (Ursus arctos), and play an important socioeconomic role for many communities in western North America, especially indigenous peoples. Remote sensing imagery offers the potential for accurate landscape-level mapping of...
Applying concepts of general resilience to large river ecosystems: A case study from the Upper Mississippi and Illinois rivers
Kristen L. Bouska, Jeffrey N. Houser, Nathan R. De Jager, Molly Van Appledorn, James T. Rogala
2019, Ecological Indicators (101) 1094-1110
Large floodplain-river ecosystems are often highly modified to provide services that society desires, yet these modifications can limit an ecosystem’s ability to adapt to changing conditions. The adaptive capacity of an ecosystem, its general resilience, is a conceptual framework for considering how a system will respond to such changes. We...
Disease‐structured N‐mixture models: A practical guide to model disease dynamics using count data
Graziella V. DiRenzo, Christian Che-Castaldo, Sarah P. Saunders, Evan H. Campbell Grant, Elise F. Zipkin
2019, Ecology and Evolution (9) 899-909
Obtaining inferences on disease dynamics (e.g., host population size, pathogen prevalence, transmission rate, host survival probability) typically requires marking and tracking individuals over time. While multistate mark–recapture models can produce high‐quality inference, these techniques are difficult to employ at large spatial and long temporal scales or in small remnant host...
Catchment-level estimates of nitrogen and phosphorus agricultural use from commercial fertilizer sales for the conterminous United States, 2012
Jana S. Stewart, Gregory E. Schwarz, John W. Brakebill, Stephen D. Preston
2019, Scientific Investigations Report 2018-5145
Nutrient inputs from commercial agricultural fertilizer, particularly nitrogen and phosphorus, are important factors contributing to the degradation of surface-water quality and the alteration of aquatic ecosystems. Despite this importance, information about the application of fertilizer to agricultural land is not available in a consistent manner across the United States at...
Effects of nest exposure and spring temperatures on golden eagle brood survival: An opportunity for mitigation
Michael N. Kochert, Karen Steenhof, Jessi L. Brown
2019, Journal of Raptor Research (53) 91-97
We examined Golden Eagle (Aquila chrysaetos) brood survival in relation to spring temperatures and exposure of nests to afternoon sun in southwestern Idaho from 1970 through 2012. Most (77%) nests classified as shaded in a subset of 96 nests had northwest to east aspects, and most (71%) nests classified as...
Modeling riparian restoration impacts on the hydrologic cycle at the Babacomari Ranch, SE Arizona, USA
Laura M. Norman, James B. Callegary, Laurel Lacher, Natalie R. Wilson, Chloé Fandel, Brandon T. Forbes, Tyson Swetnam
2019, Water (11) 1-20
This paper describes coupling field experiments with surface and groundwater modeling to investigate rangelands of SE Arizona, USA using erosion-control structures to augment shallow and deep aquifer recharge. We collected field data to describe the physical and hydrological properties before and after gabions (caged riprap) were installed in an ephemeral...
Optimizing historic preservation under climate change: Decision support for cultural resource adaptation planning in national parks
Xiao Xiao, Erin Seekamp, Max Post van der Burg, Mitchell J. Eaton, Sandra Fatoric, Allie McCreary
2019, Land Use Policy (83) 379-389
Climate change poses great challenges for cultural resource management, particularly in coastal areas. Cultural resources, such as historic buildings, in coastal areas are vulnerable to climate impacts including inundation, deterioration, and destruction from sea-level rise and storm-related flooding and erosion. However, research that assesses the trade-offs between actions for protecting vulnerable and valuable cultural resources under budgetary constraints is...
Modeling δ18O as an early indicator of regime shift arising from salinity stress in coastal vegetation
Su Yean Teh, Hock Lye Koh, Donald L. DeAngelis, Clifford I. Voss, Leonel da Silveira Lobo Sternberg
2019, Hydrogeology Journal (27) 1257-1276
In many important coastal habitats, a combination of increasing soil salinization due to sea level rise, reduced precipitation and storm surges may induce regime shift from salinity-intolerant glycophytic vegetation to salinity-tolerant halophytic species. Early detection of regime shift due to salinity stress in vegetation may facilitate conservation efforts. It has...
California’s exposure to volcanic hazards
Margaret Mangan, Jessica Ball, Nathan Wood, Jamie L. Jones, Jeff Peters, Nina Abdollahian, Laura Dinitz, Sharon Blankenheim, Johanna Fenton, Cynthia Pridmore
2019, Scientific Investigations Report 2018-5159
The potential for damaging earthquakes, landslides, floods, tsunamis, and wildfires is widely recognized in California. The same cannot be said for volcanic eruptions, despite the fact that they occur in the state about as frequently as the largest earthquakes on the San Andreas Fault. At least ten eruptions have taken...
Upgrades to a Fortran program for estimating stream transit losses of reusable water, El Paso and Pueblo Counties, Colorado
Susan J. Colarullo, Lisa D. Miller
2019, Scientific Investigations Report 2018-5163
In 2016, the U.S. Geological Survey, in cooperation with Pikes Peak Regional Water Authority and the Colorado Water Conservation Board, began a study to modernize a Fortran transit-loss accounting program developed by the U.S. Geological Survey to estimate net reusable flows in Fountain and Monument Creeks in El Paso and...
Can’t see the random forest for the decision trees: Selecting predictive models for restoration ecology
David Barnard, Matthew Germino, David Pilliod, Robert Arkle, Cara Applestein, Bill Davidson, Matthew Fisk
2019, Restoration Ecology (27) 1053-1063
Improving predictions of restoration outcomes is increasingly important to resource managers for accountability and adaptive management, yet there is limited guidance for selecting a predictive model from the multitude available. The goal of this paper was to identify an optimal predictive framework for restoration ecology using eleven modeling frameworks (including,...
Reimagining the potential of Earth observations for ecosystem service assessments
Carlos Ramirez-Reyes, Kate A. Brauman, Rebecca Chaplin-Kramer, Gillian L. Galford, Susana B. Adamo, Christopher B. Anderson, Clarissa Anderson, Ginger R. H. Allington, Kenneth J. Bagstad, Michael T. Coe, Anna F. Cord, Laura E. Dee, Rachelle K. Gould, Meha Jain, Virginia A. Kowal, Frank E. Muller-Karger, Jessica Norriss, Peter V. Potapov, Jiangxiao Qui, Jesse T. Rieb, Brian E. Robinson, Leah H. Samberg, Nagendra Singh, Sabrina H. Szeto, Brian Voigt, Keri Watson, T. Maxwell Wright
2019, Science of the Total Environment (665) 1053-1063
The benefits nature provides to people, called ecosystem services, are increasingly recognized and accounted for in assessments of infrastructure development, agricultural management, conservation prioritization, and sustainable sourcing. These assessments are often limited by data, however, a gap with tremendous potential to be filled through Earth observations (EO), which produce a variety...
Factors affecting species richness and distribution spatially and temporally within a protected area using multi-season occupancy models
Jennifer F. Moore, James E. Hines, Michel K. Masozera
2019, Animal Conservation (22) 503-514
Exploring trends in species richness and the distribution of individual species over time as well as the factors affecting these trends informs conservation priorities in protecting species and ecosystems as a whole. We used data from 41 park-wide line transect surveys in 2009 and 2014 and multi-season occupancy models with...
Assessing lek attendance of male greater sage‐grouse using fine‐resolution GPS data: Implications for population monitoring of lek mating grouse
Gregory T. Wann, Peter S. Coates, Brian G. Prochazka, John P. Severson, Adrian P. Monroe, Cameron L. Aldridge
2019, Population Ecology (61) 183-197
Counts of males displaying on breeding grounds are the primary management tool used to assess population trends in lekking grouse species. Despite the importance of male lek attendance (i.e., proportion of males on leks available for detection) influencing lek counts, patterns of within season and between season variability in attendance...
Evaluation of recommended revisions to Bulletin 17B
Timothy A. Cohn, Nancy A. Barth, John F. England Jr., Beth A. Faber, Robert R. Mason, Jr., Jery R. Stedinger
2019, Open-File Report 2017-1064
For the past 36 years, Bulletin 17B, published by the Interagency Committee on Water Data in 1982, has guided flood-frequency analyses in the United States. During this period, much has been learned about both hydrology and statistical methods. In keeping with the tradition of periodically updating the Bulletin 17B guidelines...
Diving behavior of Pink-footed Shearwaters Ardenna creatopus rearing chicks on Isla Mocha, Chile
Josh Adams, Jonathan J. Felis, Max Czapanskiy, Ryan D. Carle, Peter J. Hodum
2019, Marine Ornithology: Journal of Seabird Research and Conservation (47) 17-24
Recent information reporting Pink-footed Shearwater Ardenna creatopus mortality from fisheries bycatch throughout its range has encouraged fisheries managers in Chile to evaluate and consider shearwater foraging behaviors to better evaluate risk. In response, we tracked six chickrearing adult Pink-footed Shearwaters from Isla Mocha, off south-central Chile, from 19 to 28...
Geophysical Characterization of the heat source in the Northwest Geysers, California
Jared R. Peacock, Margaret T. Mangan, Mark Walters, Craig Hartline, Jonathan M.G. Glen, Tait E. Earney, William D. Schermerhorn
2019, Conference Paper, Proceedings, 44th Workshop on Geothermal Reservoir Engineering
The Geysers, in northern California, is the largest energy producing geothermal field in the world. Looking to expand capacity, the operator Calpine Corporation developed an anomalously hot (~400 °C at 2.5 km depth) part of the field in the northwest Geysers, including testing of an enhanced geothermal systems (EGS). Though...
Rupture model of the M5.8 Pawnee, Oklahoma earthquake from regional and teleseismic waveforms
Morgan P. Moschetti, Stephen H. Hartzell, R. B. Herrmann
2019, Geophysical Research Letters (46) 2494-2502
The 2016 M5.8 Pawnee, Oklahoma earthquake is the largest earthquake to have been induced by wastewater disposal. We infer the coseismic slip history from analysis of apparent source time functions and inversion of regional and teleseismic P‐waveforms, using aftershocks as empirical Green's functions. The earthquake nucleated on the shallow part...
Estimating sand concentrations using ADCP‐based acoustic inversion in a large fluvial system characterized by bi‐modal suspended‐sediment distributions
Ricardo N. Szupiany, Cecilia Lopez Weibel, Massimo Guerrero, Francisco Latosinski, Molly S. Wood, Lucas Dominguez Ruben, Kevin Oberg
2019, Earth Surface Processes and Landforms (44) 1295-1308
Quantifying sediment flux within rivers is a challenge for many disciplines due, mainly, to difficulties inherent to traditional sediment sampling methods. These methods are operationally complex, high cost, and high risk. Additionally, the resulting data provide a low spatial and temporal resolution estimate of the total sediment flux, which has...
Evaluation of Chinook salmon (Oncorhynchus tshawytscha) fry survival at Lookout Point Reservoir, western Oregon, 2017
Tobias J. Kock, Russell W. Perry, Gabriel S. Hansen, Philip V. Haner, Adam C. Pope, John M. Plumb, Karen M. Cogliati, Amy C. Hansen
2019, Open-File Report 2019-1011
A field study was conducted to estimate survival of fry-sized juvenile Chinook salmon (Oncorhynchus tshawytscha) in Lookout Point Reservoir, western Oregon, during 2017. The field study consisted of releasing three groups of genetically marked fish in the reservoir and monthly fish sampling. Fish were released during April 18–19 (43,950...
Stochastic model for simulating Souris River Basin regulated streamflow upstream from Minot, North Dakota
Kelsey A. Kolars, Aldo V. Vecchia, Joel M. Galloway
2019, Scientific Investigations Report 2018-5155
The Souris River Basin is a 24,000 square-mile basin in the Provinces of Saskatchewan and Manitoba in Canada, and the State of North Dakota in the United States. Above-average snowpack during the winter of 2010–11, along with record-setting rains in May and June of 2011, led to record flooding that...
Assessing causes of mortality for endangered juvenile Lost River suckers (Deltistes luxatus) in mesocosms in Upper Klamath Lake, south-central Oregon, 2016
Danielle M. Hereford, Carla M. Conway, Summer M. Burdick, Diane G. Elliott, Todd M. Perry, Amari Dolan-Caret, Alta C. Harris
2019, Open-File Report 2019-1006
Executive SummaryThe recovery of endangered Lost River suckers (Deltistes luxatus) in Upper Klamath Lake, south-central Oregon, has been impeded because juveniles are not recruiting into adult spawning populations. Adult sucker populations spawn each spring but mortality of age-0 suckers during their first summer is excessively high, and recruitment of...
Hydrodynamic controls on sediment retention in an emerging diversion-fed delta
Molly E. Keogh, Alexander S. Kolker, Gregg A. Snedden, Alisha A. Renfro
2019, Geomorphology (332) 100-111
The morphodynamics of river-dominated deltas are largely controlled by the supply and retention of sediment within deltaic wetlands and the rate of relative sea-level rise. Yet, sediment budgets for deltas are often poorly constrained. In the Mississippi River Delta, a system rapidly losing land due to natural and anthropogenic causes, restoration efforts seek to build new land...
Dynamic N-mixture models with temporal variability in detection probability
Qing Zhao, J. Andrew Royle
2019, Ecological Modelling (393) 20-24
In theory parameters of dynamic N-mixture models can be estimated with multiple years of data without the robust design under the assumption of constant detection probability. However, such an assumption can rarely be met in long-term studies, and the consequences of violating this assumption in the inferences of dynamic N-mixture...
