Population dynamics of brown trout (Salmo trutta) in Spruce Creek Pennsylvania: A quarter-century perspective
Gary D. Grossman, Robert F. Carline, Tyler Wagner
2017, Freshwater Biology (62) 1143-1154
We examined the relationship between density-independent and density-dependent factors on the demography of a dense, relatively unexploited population of brown trout in Spruce Creek Pennsylvania between 1985 and 2011.Individual PCAs of flow and temperature data elucidated groups of years with multiple high flow versus multiple low flow...
Unique genome organization of non-mammalian papillomaviruses provides insights into the evolution of viral early proteins
Koenraad Van Doorslaer, Valeria Ruoppolo, Annie Schmidt, Amelie Lescroel, Dennis Jongsomjit, Megan Elrod, Simona Kraberger, Daisy Stainton, Katie M. Dugger, Grant Ballard, David G. Ainley, Arvind Varsani
2017, Virus Evolution (3)
The family Papillomaviridae contains more than 320 papillomavirus types, with most having been identified as infecting skin and mucosal epithelium in mammalian hosts. To date, only nine non-mammalian papillomaviruses have been described from birds (n = 5), a fish (n = 1), a snake (n = 1), and turtles (n = 2). The identification of papillomaviruses in sauropsids and a...
Monitoring land surface albedo and vegetation dynamics using high spatial and temporal resolution synthetic time series from Landsat and the MODIS BRDF/NBAR/albedo product
Zhuosen Wang, Crystal B. Schaaf, Qingson Sun, JiHyun Kim, Angela M. Erb, Feng Gao, Miguel O. Roman, Yun Yang, Shelley Petroy, Jeffrey Taylor, Jeffrey G. Masek, Jeffrey T. Morisette, Xiaoyang Zhang, Shirley A. Papuga
2017, International Journal of Applied Earth Observation and Geoinformation (59) 104-117
Seasonal vegetation phenology can significantly alter surface albedo which in turn affects the global energy balance and the albedo warming/cooling feedbacks that impact climate change. To monitor and quantify the surface dynamics of heterogeneous landscapes, high temporal and spatial resolution synthetic time series of albedo and the enhanced vegetation index...
Geomagnetically induced currents: Science, engineering, and applications readiness
Antti Pulkkinen, E. Bernabeu, A. Thomson, A. Viljanen, R. Pirjola, D. Boteler, J. Eichner, P.J. Cilliers, D. Welling, N.P. Savani, R.S. Weigel, Jeffrey J. Love, Christopher Balch, C.M. Ngwira, G. Crowley, Adam Schultz, R. Kataoka, B. Anderson, D. Fugate, J.J. Simpson, M. MacAlester
2017, Space Weather (15) 828-856
This paper is the primary deliverable of the very first NASA Living With a Star Institute Working Group, Geomagnetically Induced Currents (GIC) Working Group. The paper provides a broad overview of the current status and future challenges pertaining to the science, engineering, and applications of the GIC problem. Science is...
Real-time geomagnetic monitoring for space weather-related applications: Opportunities and challenges
Jeffrey J. Love, Carol Finn
2017, Space Weather (15) 820-827
An examination is made of opportunities and challenges for enhancing global, real-time geomagnetic monitoring that would be beneficial for a variety of operational projects. This enhancement in geomagnetic monitoring can be attained by expanding the geographic distribution of magnetometer stations, improving the quality of magnetometer data, increasing acquisition sampling rates,...
Evaluation of genetic population structure of smallmouth bass in the Susquehanna River basin, Pennsylvania
Megan K. Schall, Meredith L. Bartron, Timothy Wertz, Jonathan M. Niles, Cassidy H. Shaw, Tyler Wagner
2017, North American Journal of Fisheries Management (37) 850-861
The Smallmouth Bass Micropterus dolomieu was introduced into the Susquehanna River basin, Pennsylvania, nearly 150 years ago. Since introduction, it has become an economically and ecologically important species that supports popular recreational fisheries. It is also one of the most abundant top predators in the system. Currently, there is no...
Plant diversity increases with the strength of negative density dependence at the global scale
Joseph A. LaManna, Scott A. Mangan, Alfonso Alonso, Norman Bourg, Warren Y. Brockelman, Sarayudh Bunyavejchewin, Li-Wan Chang, Jyh-Min Chiang, George B. Chuyong, Keith Clay, Richard Condit, Susan Cordell, Stuart J. Davies, Tucker J. Furniss, Christian P. Giardina, I.A.U. Nimal Gunatilleke, C.V. Savitri Gunatilleke, Fangliang He, Robert W. Howe, Stephen P. Hubbell, Chang-Fu Hsieh, Faith M. Inman-Narahari, David Janik, Daniel J. Johnson, David Kenfack, Lisa Korte, Kamil Kral, Andrew J. Larson, James A. Lutz, Sean M. McMahon, William J. McShea, Herve R. Memiaghe, Anuttara Nathalang, Vojtech Novotny, Perry S. Ong, David A. Orwig, Rebecca Ostertag, Geoffrey G. Parker, Richard P. Phillips, Lawren Sack, I-Fang Sun, J. Sebastian Tello, Duncan W. Thomas, Benjamin L. Turner, Dilys M. Vela Diaz, Tomas Vrska, George D. Weiblen, Amy Wolf, Sandra Yap, Jonathan A. Myers
2017, Science (356) 1389-1392
Theory predicts that higher biodiversity in the tropics is maintained by specialized interactions among plants and their natural enemies that result in conspecific negative density dependence (CNDD). By using more than 3000 species and nearly 2.4 million trees across 24 forest plots worldwide, we show that global patterns in tree...
Diet composition of age-0 fishes in created habitats of the Lower Missouri River
Trevor A. Starks, James M. Long
2017, The American Midland Naturalist (178) 112-122
Channelization of the Missouri River has greatly reduced the availability of shallow water habitats used by many larval and juvenile fishes and contributed to imperilment of floodplain-dependent biota. Creation of small side channels, or chutes, is being used to restore shallow water habitat and reverse negative environmental effects associated with...
Gradients in Catostomid assemblages along a reservoir cascade
Leandro E. Miranda, Kevin R. Keretz, Chelsea R. Gilliland
2017, River Research and Applications (33) 983-990
Serial impoundment of major rivers leads to alterations of natural flow dynamics and disrupts longitudinal connectivity. Catostomid fishes (suckers, family Catostomidae) are typically found in riverine or backwater habitats yet are able to persist in impounded river systems. To the detriment of conservation, there is limited information about distribution of...
Novel, continuous monitoring of fine‐scale movement using fixed‐position radiotelemetry arrays and random forest location fingerprinting
Andrew B. Harbicht, Theodore R. Castro-Santos, William R. Ardren, Dimitry Gorsky, Dylan Fraser
2017, Methods in Ecology and Evolution (8) 850-859
Radio‐tag signals from fixed‐position antennas are most often used to indicate presence or absence of individuals, or to estimate individual activity levels from signal strength variation within an antenna's detection zone. The potential of such systems to provide more precise information on tag location and movement has not been...
Seven recommendations to make your invasive alien species data more useful
Quentin J. Groom, Tim Adriaens, Peter Desmet, Annie Simpson, Aaike De Wever, Ioannis Bazos, Ana Cristina Cardoso, Lucinda Charles, Anastasia Christopoulou, Anna Gazda, Harry Helmisaari, Donald Hobern, Melanie Josefsson, Frances Lucy, Dragana Marisavljevic, Tomasz Oszako, Jan Pergl, Olivera Petrovic-Obradovic, Celine Prevot, Hans Peter Ravn, Gareth Richards, Alain Roques, Helen Roy, Marie-Anne A. Rozenberg, Riccardo Scalera, Elena Tricarico, Teodora Trichkova, Diemer Vercayie, Argyro Zenetos, Sonia Vanderhoeven
2017, Frontiers in Applied Mathematics and Statistics (3) 1-8
Science-based strategies to tackle biological invasions depend on recent, accurate, well-documented, standardized and openly accessible information on alien species. Currently and historically, biodiversity data are scattered in numerous disconnected data silos that lack interoperability. The situation is no different for alien species data, and this obstructs efficient retrieval, combination, and...
A cosmopolitan late Ediacaran biotic assemblage: new fossils from Nevada and Namibia support a global biostratigraphic link
E. F. Smith, L. L. Nelson, S. M. Tweedt, H. Zeng, Jeremiah B. Workman
2017, Proceedings of the Royal Society B (284) 1-10
Owing to the lack of temporally well-constrained Ediacaran fossil localities containing overlapping biotic assemblages, it has remained uncertain if the latest Ediacaran (ca 550–541 Ma) assemblages reflect systematic biological turnover or environmental, taphonomic or biogeographic biases. Here, we report new latest Ediacaran fossil discoveries from the lower member of the Wood...
Estimating ages of Utah chubs by use of pectoral fin rays, otoliths, and scales
Kayla M Griffin, Zachary S. Beard, John M. Flinders, Michael C. Quist
2017, Western North American Naturalist (77) 189-194
Utah chub Gila atraria is native to the Upper Snake River system in Wyoming and Idaho and to the Lake Bonneville Basin in Utah and southeastern Idaho. However, the Utah chub has been introduced into many other waterbodies in the western United States, where it competes with ecologically and economically important species....
Nitrogenase activity by biological soil crusts in cold sagebrush steppe ecosystems
Stacy G. Schwabedissen, Kathleen A. Lohse, Sasha C. Reed, Ken A. Aho, Timothy S. Magnuson
2017, Biogeochemistry (134) 57-76
In drylands worldwide, biological soil crusts (BSC) form a thin photosynthetic cover across landscapes, and provide vital benefits in terms of stabilizing soil and fixing nitrogen (N) and carbon (C). Numerous studies have examined the effects of climate and disturbance on BSC functions; however, few have characterized these responses in...
Life history migrations of adult Yellowstone Cutthroat Trout in the upper Yellowstone River
Brian D. Ertel, Thomas E. McMahon, Todd M. Koel, Robert E. Gresswell, Jason Burckhardt
2017, North American Journal of Fisheries Management (37) 743-755
Knowledge of salmonid life history types at the watershed scale is increasingly recognized as a cornerstone for effective management. In this study, we used radiotelemetry to characterize the life history movements of Yellowstone Cutthroat Trout Oncorhynchus clarkii bouvieri in the upper Yellowstone River, an extensive tributary that composes nearly half of the...
Mapping informal small-scale mining features in a data-sparse tropical environment with a small UAS
Peter G. Chirico, Jessica D. Dewitt
2017, Journal of Unmanned Vehicle Systems (5) 69-91
This study evaluates the use of a small unmanned aerial system (UAS) to collect imagery over artisanal mining sites in West Africa. The purpose of this study is to consider how very high-resolution imagery and digital surface models (DSMs) derived from structure-from-motion (SfM) photogrammetric techniques from a small UAS can...
Short-term ecological consequences of collaborative restoration treatments in ponderosa pine forests of Colorado
Jenny S. Briggs, Paula J. Fornwalt, Jonas A. Feinstein
2017, Forest Ecology and Management (395) 69-80
Ecological restoration treatments are being implemented at an increasing rate in ponderosa pine and other dry conifer forests across the western United States, via the USDA Forest Service’s Collaborative Forest Landscape Restoration (CFLR) program. In this program, collaborative stakeholder groups work with National Forests (NFs) to adaptively implement and monitor...
Tributary use by imperiled Flannelmouth and Bluehead Suckers in the upper Colorado River Basin
Gregory S. Fraser, Dana L. Winkelman, Kevin R. Bestgen, Kevin G. Thompson
2017, Transactions of the American Fisheries Society (146) 858-871
Habitat alterations and establishment of nonnative fishes have reduced the distributions of Flannelmouth Sucker Catostomus latipinnis and Bluehead Sucker C. discobolus to less than 50% of their historical ranges in the Colorado River basin. Tributaries are sometimes less altered than main-stem habitat in the basin and may be important to support various life history...
Habitat associations of juvenile Burbot in a tributary of the Kootenai River
Zachary S. Beard, Michael C. Quist, Ryan S. Hardy, Tyler J. Ross
2017, Transactions of the American Fisheries Society (146) 1008-1015
Burbot Lota lota in the lower Kootenai River, Idaho, have been the focus of extensive conservation efforts, particularly conservation aquaculture. One of the primary management strategies has been the release of Burbot into small tributaries in the Kootenai River basin, such as Deep Creek. Since 2012, approximately 12,000 juvenile Burbot have been...
Population characteristics and the influence of discharge on Bluehead Sucker and Flannelmouth Sucker
Zachary B. Klein, Matthew J. Breen, Michael C. Quist
2017, Copeia (105) 375-388
Rivers are among some of the most complex and important ecosystems in the world. Unfortunately, many fishes endemic to rivers have suffered declines in abundance and distribution suggesting that alterations to lotic environments have negatively influenced native fish populations. Of the 35 fishes native to the Colorado River basin (CRB),...
Reproductive ecology, spawning behavior, and juvenile distribution of Mountain Whitefish in the Madison River, Montana
Jan K. Boyer, Christopher S. Guy, Molly A. H. Webb, Travis B. Horton, Thomas E. McMahon
2017, Transactions of the American Fisheries Society (146) 939-954
Mountain Whitefish Prosopium williamsoni were historically common throughout much of the U.S. Intermountain West. However, within the last decade Mountain Whitefish have exhibited population-level declines in some rivers. In the Madison River, Montana, anecdotal evidence indicates Mountain Whitefish abundance has declined and the population is skewed toward larger individuals, which is typically...
A proposal for amending administrative law to facilitate adaptive management
Robin K. Craig, J.B. Ruhl, Ellie Brown, Byron K. Williams
2017, Environmental Research Letters (12) 1-17
In this article we examine how federal agencies use adaptive management. In order for federal agencies to implement adaptive management more successfully, administrative law must adapt to adaptive management, and we propose changes in administrative law that will help to steer the current process out of a dead end. Adaptive...
Estimating the number of recreational anglers for a given waterbody
Kevin L. Pope, Larkin A. Powell, Brian S. Harmon, Mark A. Pegg, Christopher J. Chizinski
2017, Fisheries Research (191) 69-75
Knowing how many anglers use a given body of water is paramount for understanding components of a fishery related to angling pressure and harvest, yet no study has attempted to provide an estimate of the population size of anglers for a given waterbody. Here, we use information from creel surveys...
Subsurface geometry of the San Andreas fault in southern California: Results from the Salton Seismic Imaging Project (SSIP) and strong ground motion expectations
Gary S. Fuis, Klaus Bauer, Mark R. Goldman, Trond Ryberg, Victoria E. Langenheim, Daniel S. Scheirer, Michael J. Rymer, Joann M. Stock, John A. Hole, Rufus D. Catchings, Robert Graves, Brad T. Aagaard
2017, Bulletin of the Seismological Society of America (107) 1642-1662
The San Andreas fault (SAF) is one of the most studied strike‐slip faults in the world; yet its subsurface geometry is still uncertain in most locations. The Salton Seismic Imaging Project (SSIP) was undertaken to image the structure surrounding the SAF and also its subsurface geometry. We present SSIP studies...
Morphological and molecular characterization of Sarcocystis arctica-like sarcocysts from the Arctic fox (Vulpes lagopus) from Alaska, USA
Camila K. Cerqueira-Cezar, Peter C. Thompson, Shiv K. Verma, Joseph Mowery, Rafael Calero-Bernal, Fernando H. Antunes Murata, David R. Sinnett, Caroline R. Van Hemert, Benjamin M. Rosenthal, Jitender P. Dubey
2017, Parasitology Research (116) 1871-1878
The muscles of herbivores commonly harbor sarcocysts of parasites belonging to species in the genus Sarcocystis, but such muscle parasites are rare in carnivores. Here, we report Sarcocystis arctica-like sarcocysts in muscles of Arctic foxes (Vulpes lagopus) from Alaska, USA, for the first time. The tongues of...
