Pesticides and pollinators: A socioecological synthesis
Douglas B. Sponsler, Christina M. Grozinger, Claudia Hitaj, Maj Rundlof, Cristina Botias, Aimee Code, Eric V. Lonsdorf, Andony P. Melthapoulos, David J. Smith, Sainath Suryanarayanan, Wayne E. Thogmartin, Neal M. Williams, Minghua Zhang, Margaret R. Douglas
2019, Science of the Total Environment (662) 1012-1027
The relationship between pesticides and pollinators, while attracting no shortage of attention from scientists, regulators, and the public, has proven resistant to scientific synthesis and fractious in matters of policy and public opinion. This is in part because the issue has been approached in a compartmentalized and intradisciplinary way, such that...
The Missouri groundwater-level observation network
David C. Smith
2019, Fact Sheet 2019-3009
The Missouri groundwater-level observation well network is a series of wells across the State of Missouri in which groundwater levels are monitored in real time and periodically. The wells monitor the water levels in multiple key aquifers, such as the Ozark aquifer in the Salem and Springfield Plateaus and the...
Impact of prey occupancy and other ecological and anthropogenic factors on Tiger distribution in Thailand’s Western Forest Complex
Somphot Duangchatrasiri, Pornkamol Jornburom, Sitthichai Jinamoy, Anak Pattanvibool, James E. Hines, Todd W. Arnold, John Fieberg, James L D Smith
2019, Ecology and Evolution (9) 2449-2458
Despite conservation efforts, large mammals such as tigers (Panthera tigris) and their main prey, gaur (Bos gaurus), banteng (Bos javanicus), and sambar (Rusa unicolor), are highly threatened and declining across their entire range. The only large viable source population of tigers in mainland Southeast Asia occurs in Thailand's Western Forest...
Evidence for interactions among environmental stressors in the Laurentian Great Lakes
Sigrid D. P. Smith, David B. Bunnell, G.A. Burton Jr., Jan J. H. Ciborowski, Alisha D. Davidson, Caitlin E. Dickinson, Lauren A. Eaton, Peter C. Esselman, Mary Anne Evans, Donna R. Kashian, Nathan F. Manning, Peter B. McIntyre, Thomas F. Nalepa, Alicia Perez-Fuentetaja, Alan D. Steinman, Donald G. Uzarski, J. David Allan
2019, Ecological Indicators (101) 203-211
Co-occurrence of environmental stressors is ubiquitous in ecosystems, but cumulative effects are difficult to predict for effective indicator development. Individual stressors can amplify (synergies) or lessen (antagonisms) each other's impacts or have fully independent effects (additive). Here we use the Laurentian Great Lakes, where a multitude of stressors have been...
Yellowstone’s birds are vital
Robert H. Diehl, Douglas W. Smith
2019, Yellowstone Science (27) 46-48
Traveling through Yellowstone National Park (YNP), visitors frequently stop to enjoy the park’s birds: small songbirds flitting about the willows, sandhill cranes engaged in their ritual mating dances, or myriad species of waterfowl loafing in one of the park's many wetlands. Typically while driving the roads of YNP, a majority...
Linkages between hydrology and seasonal variations of nutrients and periphyton in a large oligotrophic subalpine lake
Ramon C. Naranjo, Richard G. Niswonger, David Smith, Donald O. Rosenberry, Sudeep Chandra
Richard G. Niswonger, David Smith, Donald O. Rosenberry, Sudeep Chandra, editor(s)
2019, Journal of Hydrology (568) 877-890
Periphyton is important to lake ecosystems, contributing to primary production, nutrient cycling, and benthic metabolism. Increases in periphyton growth in lakes can be indicative of changes in water quality, shifts in ecosystem structure, and increases in nutrient fluxes. In oligotrophic lakes, conservationists are interested in characterizing the influence of hydrological...
Airborne bacteria in Earth’s lower stratosphere resemble taxa detected in the troposphere: results from a new NASA aircraft bioaerosol collector (ABC)
David J. Smith, Jayamary D. Ravichandar, Sunit Jain, Dale W. Griffin, Hongbin Yu, Qian Tan, James Thissen, Terry Lusby, Patrick Nicoll, Sarah Shedler, P. Martinez, Alejandro Osorio, Jason Lechniak, Samuel Choi, Kayleen Sabino, Kathryn Iverson, Luisa Chan, Crystal Jaing, John McGrath
2019, Frontiers in Microbiology (9)
Airborne microorganisms in the upper troposphere and lower stratosphere remain elusive due to a lack of reliable sample collection systems. To address this problem, we designed, installed, and flight-validated a novel Aircraft Bioaerosol Collector (ABC) for NASA's C-20A that can make collections for microbiological research investigations up to altitudes of...
Population characteristics of Yellow Perch in a central Appalachia hydropower reservoir
Corbin D. Hilling, Nate D. Taylor, Stuart A. Welsh, Dustin M. Smith
2018, Journal of Fish and Wildlife Management (9) 486-495
Estimates of population characteristics of sport fishes inform fisheries management decisions and provide feedback on management strategies. Cheat Lake provides an unusual fishery in West Virginia because the hydropower reservoir supports a Yellow Perch Perca flavescens population. We estimated age structure, size structure, condition, total instantaneous mortality, growth, and summer diet for...
Fish behavior and abundance monitoring near a floating surface collector in North Fork Reservoir, Clackamas River, Oregon, using multi-beam acoustic imaging sonar
Collin D. Smith, John M. Plumb, Noah S. Adams
2018, Open-File Report 2018-1182
An imaging sonar was used to assess the behavior and abundance of fish sized the same as salmonid smolt and bull trout (Salvelinus confluentus) at the entrance to the juvenile fish floating surface collector (FSC) at North Fork Reservoir, Oregon. The purpose of the FSC is to collect downriver...
Change in dominance determines herbivore effects on plant biodiversity
Sally E. Koerner, Melinda D. Smith, Deron E. Burkepile, Niall P. Hanan, Meghan L. Avolio, Scott L. Collins, Alan K. Knapp, Nathan P. Lemoine, Elisabeth J. Forrestel, Stephanie Eby, Dave I. Thompson, Gerardo A. Aguado-Santacruz, John P. Anderson, T. Michael Anderson, Ayana Angassa, Sumanta Bagchi, Elisabeth S. Bakker, Gary Bastin, Lauren E. Baur, Karen H. Beard, Erik A. Beever, Patrick J. Bohlen, Elizabeth H. Boughton, Don Canestro, Ariela Cesa, Enrique Chaneton, Jimin Cheng, Carla M. D'Antonio, Claire Deleglise, Fadiala Dembélé, Josh Dorrough, David J. Eldridge, Barbara Fernandez-Going, Silvia Fernández-Lugo, Lauchlan H. Fraser, Bill Freedman, Gonzalo García-Salgado, Jacob R. Goheen, Liang Guo, Sean Husheer, Moussa Karembé, Johannes M. H. Knops, Tineke Kraaij, Andrew Kulmatiski, Minna-Maarit Kytöviita, Felipe Lezama, Gregory Loucougaray, Alejandro Loydi, Daniel G. Milchunas, Suzanne J. Milton, John W. Morgan, Claire Moxham, Kyle C. Nehring, Han Olff, Todd M. Palmer, Salvador Rebollo, Corinna Riginos, Anita C. Risch, Marta Rueda, Mahesh Sankaran, Takehiro Sasaki, Kathryn A. Schoenecker, Nick L. Schultz, Martin Schütz, Angelika Schwabe, Frances Siebert, Christian Smit, Karen A. Stahlheber, Christian Storm, Dustin J. Strong, Jishuai Su, Yadugiri V. Tiruvaimozhi, Claudia Tyler, James Val, Martijn L. Vandegehuchte, Kari E. Veblen, Lance Vermeire, David Ward, Jianshuang Wu, Truman P. Young, Qiang Yu, Tamara J. Zelikova
2018, Nature Ecology & Evolution (2) 1925-1932
Herbivores alter plant biodiversity (species richness) in many of the world’s ecosystems, but the magnitude and the direction of herbivore effects on biodiversity vary widely within and among ecosystems. One current theory predicts that herbivores enhance plant biodiversity at high productivity but have the opposite effect at low productivity. Yet,...
Factors affecting gray wolf (Canis lupus) encounter rate with elk (Cervus elaphus) in Yellowstone National Park
Hans Martin, L. David Mech, John Fieberg, Matthew C. Metz, Daniel R. MacNulty, Daniel R. Stahler, Douglas W. Smith
2018, Canadian Journal of Zoology (96) 1032-1042
Despite encounter rates being a key component of kill rate, few studies of large carnivore predation have quantified encounter rates with prey, the factors that influence them, and the relationship between encounter rate and kill rate. The study’s primary motivation was to determine the relationship between prey density and encounter...
Distribution of mining-related trace elements in streambed and flood-plain sediment along the middle Big River and tributaries in the Southeast Missouri Barite District, 2012–15
David C. Smith, John G. Schumacher
2018, Scientific Investigations Report 2018-5103
Lead mining first began in the Big River watershed during the 1700s. Lead was the primary metal mined throughout most of the 1700s and early 1800s and it continued to be mined until the mid-1900s. Barite mining began in the middle part of the watershed in the mid- to late...
Investigating the mixing efficiencies of liquid-to-liquid chemical injection manifolds for aquatic invasive species management
Thomas J. Zolper, Aaron R. Cupp, David L. Smith
2018, Journal of Fluids Engineering (141) 1-14
Aquatic invasive species (AIS) have spread throughout the United States via major rivers and tributaries. Locks and dams positioned along affected waterways, specifically lock chambers, are being evaluated as potential management sites to prevent further expansion into new areas. Recent research has shown that infusion of chemicals (e.g., carbon dioxide)...
Spatial and temporal variability of myxozoan parasite, Myxobolus inornatus, prevalence in young of the year smallmouth bass in the Susquehanna River Basin, Pennsylvania
Megan K. Schall, Vicki S. Blazer, Heather L. Walsh, Geoffrey D. Smith, Timothy Wertz, Tyler Wagner
2018, Journal of Fish Diseases (41) 1689-1700
A myxozoan parasite, Myxobolus inornatus, is one disease agent identified in young of the year (YOY) smallmouth bass in the Susquehanna River Basin, Pennsylvania. We investigated spatial and temporal variability in M. Inornatus prevalence across the Susquehanna River Basin and at several out-of-basin sites. We examined potential land use drivers of M. Inornatus prevalence including agricultural and developed...
Estimating distemper virus dynamics among wolves and grizzly bears using serology and Bayesian state‐space models
Paul C. Cross, Frank T. van Manen, Mafalda Viana, Emily S. Almberg, Daniel Bachen, Ellen E. Brandell, Mark A. Haroldson, Peter J. Hudson, Daniel R. Stahler, Douglas W. Smith
2018, Ecology and Evolution (8) 8726-8735
Many parasites infect multiple hosts, but estimating the transmission across host species remains a key challenge in disease ecology. We investigated the within and across host species dynamics of canine distemper virus (CDV) in grizzly bears (Ursus arctos) and wolves (Canis lupus) of the Greater Yellowstone Ecosystem (GYE). We hypothesized...
Temporal evaluation of estrogenic endocrine disruption markers in smallmouth bass (Micropterus dolomieu) reveals seasonal variability in intersex
Luke R. Iwanowicz, A.E. Pinkney, C.P. Guy, A.M. Major, K. Munney, Vicki S. Blazer, David Alvarez, Heather L. Walsh, Adam J. Sperry, Lakyn R. Sanders, D. R. Smith
2018, Science of the Total Environment (646) 245-256
A reconnaissance project completed in 2009 identified intersex and elevated plasma vitellogenin in male smallmouth bass inhabiting the Missisquoi River, VT. In an attempt to identify the presence and seasonality of putative endocrine disrupting chemicals or other factors associated with these observations, a comprehensive reevaluation was conducted between September 2012...
BioTIME: A database of biodiversity time series for the Anthropocene
Maria Dornelas, Laura H. Antao, Faye Moyes, Amanda E. Bates, Anne E. Magurran, Dusan Adam, Asem A. Akhmetzhanova, Ward Appeltans, Jose Manuel Arcos, Haley Arnold, Narayanan Ayyappan, Gal Badihi, Andrew H. Baird, Miguel Barbosa, Tiago Egydio Barreto, Claus Bassler, Alecia Bellgrove, Jonathan Belmaker, Lisandro Benedetti-Cecchi, Brian J. Bett, Anne D. Bjorkman, Magdalena Blazewicz, Shane Blowes, Christopher P. Bloch, Timothy C. Bonebrake, Susan Boyd, Matt Bradford, Andrew J. Brooks, James H. Brown, Helge Bruelheide, Phaedra E. Budy, Fernando Carvalho, Edward Castaneda-Moya, Chaolun Allen Chen, John F. Chamblee, Tory J. Chase, Laura Siegwart Collier, Sharon K. Collinge, Richard Condit, Elisabeth J. Cooper, J. Hans C. Cornelissen, Unai Cotano, Shannan Kyle Crow, Gabriella Damasceno, Claire H. Davies, Robert A. Davis, Frank P. Day, Steven Degraer, Tim S. Doherty, Timothy E. Dunn, Giselda Durigan, J. Emmett Duffy, Dor Edelist, Graham Edgar, Robin Elahi, Sarah C. Elmendorf, Anders Enemar, S. K. Morgan Ernest, Reuben Escribano, Marc Estiarte, Brian S. Evans, Tung-Yung Fan, Fabiano Turini Farah, Luiz Loureiro Fernandes, Fabio Z. Farneda, Alessandra Fidelis, Robert Fitt, Anna Maria Fosaa, Geraldo Antonio Daher Correa Franco, Grace E. Frank, William R. Fraser, Hernando Garcia, Roberto Cazzolla Gatti, Or Givan, Elizabeth Gorgone-Barbosa, William A. Gould, Corrina Gries, Gary D. Grossman, Julio R. Gutierrez, Stephen Hale, Mark E Harmon, John Harte, Gary Haskins, Henshaw Donald L., Luise Hermanutz, Pamela Hidalgo, Pedro Higuchi, Andrew Hoey, Gert Van Hoey, Annika Hofgaard, Kristen T. Holeck, Robert D. Hollister, Richard Holmes, Mia Hoogenboom, Chih-hao Hsieh, Steven P. Hubbell, Falk Huettmann, Christine L. Huffard, Allen H. Hurlbert, Natalia Macedo Ivanauskas, David Janik, Ute Jandt, Anna Jazdzewska, Tore Johannessen, Jill F. Johnstone, Julia Jones, Faith A. M. Jones, Jungwon Kang, Tasrif Kartawijaya, Erin C. Keeley, Douglas A. Kelt, Rebecca Kinnear, Kari Klanderud, Halvor Knutsen, Christopher C. Koenig, Alessandra R. Kortz, Kamil Kral, Linda A. Kuhnz, Chao-Yang Kuo, David J. Kushner, Claire Laguionie-Marchais, Lesley T. Lancaster, Cheol Min Lee, Jonathan S. Lefcheck, Esther Lévesque, David A. Lightfoot, Francisco Lloret, John D. Lloyd, Adrià López-Baucells, Maite Louzao, Joshua S. Madin, Borgbor Magnusson, Shahar Malamud, Iain Matthews, Kent P. McFarland, Brian J. McGill, Diane M. McKnight, William O. McLarney, Jason Meador, Peter L. Meserve, Daniel J. Metcalfe, Christoph F. J. Meyer, Anders Michelsen, Nataliya Milchakova, Tom Moens, Even Moland, Jon A. Moore, Carolina Mathias Moreira, Jorg Muller, Grace Murphy, Isla H. Myers-Smith, Randall W. Myster, Andrew Naumov, Francis Neat, James A. Nelson, Michael Paul Nelson, Stephen F. Newton, Natalia Norden, Jeffrey C. Oliver, Esben M. Olsen, Vladimir G. Onipchenko, Krzysztof Pabis, Robert J. Pabst, Alain Paquette, Sinta Pardede, David M. Paterson, Raphael Pelissier, Josep Penuelas, Alejandro Perez-Matus, Oscar Pizarro, Pomati. Francesco, Eric Post, Herbert H.T. Prins, John C. Priscu, Pieter Provoost, Kathleen L. Prudic, Erkki Pulliainen, B. R. Ramesh, Olivia Mendivil Ramos, Andrew Rassweiler, Jose Eduardo Rebelo, Daniel C. Reed, Peter B. Reich, Suzanne M. Remillard, Anthony J. Richardson, J. Paul Richardson, Itai van Rijn, Ricardo Rocha, Victor H. Rivera-Monroy, Christian Rixen, Kevin P. Robinson, Ricardo Ribeiro Rodrigues, Denise de Cerqueira Rossa-Feres, Lars G. Rudstam, Henry Ruhl, Catalina S. Ruz, Erica M. Sampaio, Nancy B. Rybicki, Andrew L. Rypel, Sofia Sal, Beatriz Salgado, Flavio A. M. Santos, Ana Paula Savassi-Coutinho, Sara E. Scanga, Jochen Schmidt, Robert L. Schooley, Fakhrizal Setiawan, Kwang-Tsao Shao, Gaius R. Shaver, Sally Sherman, Thomas W. Sherry, Jacek Sicinski, Caya Sievers, Ana Carolina da Silva, Fernando Rodrigues da Silva, Fabio L. Silveira, Jasper Slingsby, Tracey Smart, Sara J. Snell, Nadejda A. Soudzilovskaia, Gabriel B. G. Souza, Flaviana Maluf Souza, Vinicius Castro Souza, Christopher D. Stallings, Rowan Stanforth, Emily H. Stanley, Jose Mauro Sterza, Maarten Stevens, Rick D. Stuart-Smith, Yzel Rondon Suarez, Sarah Supp, Jorge Yoshio Tamashiro, Sukmaraharja Tarigan, Gary P. Thiede, Simon Thorn, Anne Tolvanen, Maria Theresa Zugliani Toniato, Orjan Totland, Robert R. Twilley, Gediminas Vaitkus, Nelson Valdivia, Martha Isabel Vallejo, Thomas J. Valone, Carl Van Colen, Jan Vanaverbeke, Fabio Venturoli, Hans M. Verheye, Marcelo Vianna, Rui P. Vieira, Tomas Vrska, Con Quang Vu, Lien Van Vu, Robert B. Waide, Conor Waldock, Dave Watts, Sara Webb, Tomasz Wesolowski, Ethan P. White, Claire E. Widdicombe, Dustin Wilgers, Richard S. Williams, Stefan B. Williams, Mark Williamson, Michael R. Willig, Trevor J. Willis, Sonja Wipf, Kerry D. Woods, Eric J. Woehler, Kyle Zawada, Michael L. Zettler
2018, Global Ecology and Biogeography (27) 760-786
MotivationThe BioTIME database contains raw data on species identities and abundances in ecological assemblages through time. These data enable users to calculate temporal trends in biodiversity within and amongst assemblages using a broad range of metrics. BioTIME is being developed as a community-led open-source database of biodiversity...
Temporal and spatial monitoring of cyanobacterial blooms at Willow Creek Reservoir, North-Central Oregon
Cassandra D. Smith
2018, Scientific Investigations Report 2018-5083
The U.S. Geological Survey (USGS) and U.S. Army Corps of Engineers (USACE) investigated the spatial and temporal dynamics of cyanobacterial (blue-green algal) blooms in Willow Creek Reservoir in north-central Oregon in 2015–16. A combination of cameras and water-quality monitoring equipment was used to assess the frequency and duration of blooms...
Implicit decision framing as an unrecognized source of confusion in endangered species classification
Jonathan Cummings, Sarah J. Converse, David R. Smith, Steve Morey, Michael C. Runge
2018, Conservation Biology (32) 1246-1254
Legal classification of species requires scientific and values‐based components, and how those components interact depends on how people frame the decision. Is classification a negotiation of trade‐offs, a decision on how to allocate conservation efforts, or simply a comparison of the biological status of a species to a legal standard?...
River response to large‐dam removal in a Mediterranean hydroclimatic setting: Carmel River, California, USA
Lee R. Harrison, Amy E. East, Douglas P. Smith, Joshua B. Logan, Rosealea Bond, Colin L. Nicol, Thomas H. Williams, David A. Boughton, Kaitlyn Chow, Lauren Luna
2018, Earth Surface Processes and Landforms (43) 3009-3021
Dam removal provides a valuable opportunity to measure the fluvial response to changes in both sediment supply and the processes that shape channel morphology. We present the first study of river response to the removal of a large (32‐m‐high) dam in a Mediterranean hydroclimatic setting, on the Carmel River, coastal...
The thermophysical properties of the Bagnold Dunes, Mars: Ground truthing orbital data
Christopher S. Edwards, Sylvain Piqueux, Victoria E. Hamilton, Robin L. Fergason, Kenneth E. Herkenhoff, Ashwin R. Vasavada, Kristen A. Bennett, Leah Sacks, Kevin Lewis, Michael D. Smith
2018, Journal of Geophysical Research: Planets (123) 1307-1326
We compare the thermophysical properties and particle sizes derived from the Mars Science Laboratory rover's Ground Temperature Sensor of the Bagnold dunes, specifically Namib dune, to those derived orbitally from Thermal Emission Imaging System, ultimately linking these measurements to ground truth particle sizes determined from Mars Hand Lens Imager images....
Klamath River Basin water-quality data
Cassandra D. Smith, Stewart A. Rounds, Leonard L. Orzol
2018, Fact Sheet 2018-3031
The Klamath River Basin stretches from the mountains and inland basins of south-central Oregon and northern California to the Pacific Ocean, spanning multiple climatic regions and encompassing a variety of ecosystems. Water quantity and water quality are important topics in the basin, because water is a critical resource for farming...
Using interviews and biological sign surveys to infer seasonal use of forested and agricultural portions of a human-dominated landscape by Asian elephants in Nepal
Babu Ram Lamichhane, Naresh Subedi, Chiranjibi Prasad Pokheral, Maheshwar Dhakal, Krishna Prasad Acharya, Narendra Man Babu Pradhan, James L. David Smith, Sabita Malla, Bishnu Singh Thakuri, Charles B. Yackulic
2018, Ethology Ecology and Evolution (30) 331-347
Understanding how wide-ranging animals use landscapes in which human use is highly heterogeneous is important for determining patterns of human–wildlife conflict and designing mitigation strategies. Here, we show how biological sign surveys in forested components of a human-dominated landscape can be combined with human interviews in agricultural portions of a...
Development of a species status assessment process for decisions under the U.S. Endangered Species Act
David R. Smith, Nathan L. Allan, Conor P. McGowan, Jennifer A. Szymankski, Susan R. Oetker, Heather M. Bell
2018, Journal of Fish and Wildlife Management (9) 302-320
Decisions under the U.S. Endangered Species Act (ESA) require scientific input on the risk that the species will become extinct. A series of critiques on the role of science in ESA decisions have called for improved consistency and transparency in species risk assessments and clear distinctions between science input and...
Effects of feral horse herds on plant communities across a precipitation gradient
Lauren E. Baur, Kathryn A. Schoenecker, Melinda D. Smith
2018, Western North American Naturalist (77) 526-539
Feral horses are widespread in the western United States, with the majority of feral horse herds found in the Great Basin. There is a federal mandate to manage these herds in order to maintain “ecological balance”; however, understanding of the specific effects of feral horse grazing on rangeland plant communities...
