Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16784
A new method for discovering behavior patterns among animal movements
Advanced satellite tracking technologies enable biologists to track animal movements at fine spatial and temporal scales. The resultant data present opportunities and challenges for understanding animal behavioral mechanisms. In this paper, we develop a new method to elucidate animal movement patterns from tracking data. Here, we propose the notion of continuous behavior patterns as a concise repr
Authors
Y. Wang, Ze Luo, John Y. Takekawa, Diann J. Prosser, Y. Xiong, S. Newman, X. Xiao, N. Batbayar, Kyle A. Spragens, S. Balachandran, B. Yan
Seasonal temperature and precipitation regulate brook trout young-of-the-year abundance and population dynamics
Abundance of the young‐of‐the‐year (YOY) fish can vary greatly among years and it may be driven by several key biological processes (i.e. adult spawning, egg survival and fry survival) that span several months. However, the relative influence of seasonal weather patterns on YOY abundance is poorly understood.We assessed the importance of seasonal air temperature (a surrogate for stream temperature
Authors
Yoichiro Kanno, Kasey C. Pregler, Nathaniel P. Hitt, Benjamin Letcher, Daniel Hocking, John E. B. Wofford
Flood-inundation maps for the Tippecanoe River at Winamac, Indiana
Digital flood-inundation maps for a 6.2 mile reach of the Tippecanoe River at Winamac, Indiana (Ind.), were created by the U.S. Geological Survey (USGS) in cooperation with the Indiana Office of Community and Rural Affairs. The flood-inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science Web site at http://water.usgs.gov/osw/flood_inundation/, depict estimates of
Authors
Chad D. Menke, Aubrey R. Bunch
Measurement of in situ sulfur isotopes by laser ablation multi-collector ICPMS: opening Pandora’s Box
Laser ablation multi-collector ICPMS is a modern tool for in situ measurement of S isotopes. Advantages of the technique are speed of analysis and relatively minor matrix effects combined with spatial resolution sufficient for many applications. The main disadvantage is a more destructive sampling mechanism relative to the ion microprobe technique. Recent advances in instrumentation allow precise
Authors
William I. Ridley, Michael Pribil, Alan E. Koenig, John F. Slack
Stream vulnerability to widespread and emergent stressors: a focus on unconventional oil and gas
Multiple stressors threaten stream physical and biological quality, including elevated nutrients and other contaminants, riparian and in-stream habitat degradation and altered natural flow regime. Unconventional oil and gas (UOG) development is one emerging stressor that spans the U.S. UOG development could alter stream sedimentation, riparian extent and composition, in-stream flow, and water qual
Authors
Sally Entrekin, Kelly O. Maloney, Katherine E. Kapo, Annika W. Walters, Michelle A. Evans-White, Kenneth M. Klemow
Lead scrap use and trade patterns in the United States, 1995-2012
Since 1995, domestic production of lead has increasingly shifted from primary mining and smelting to the recovery of lead-bearing scrap by the secondary lead industry, which accounted for 91 percent of U.S. lead production in 2012. Increasingly stringent environmental regulations for lead emissions in the United States have contributed to the closure of primary lead refineries and the consolidatio
Authors
David R. Wilburn
Individual heterogeneity in growth and age at sexual maturity: A gamma process analysis of capture–mark–recapture data
Knowledge of organisms’ growth rates and ages at sexual maturity is important for conservation efforts and a wide variety of studies in ecology and evolutionary biology. However, these life history parameters may be difficult to obtain from natural populations: individuals encountered may be of unknown age, information on age at sexual maturity may be uncertain and interval-censored, and growth da
Authors
William A. Link, Kyle Miller Hesed
Hydro-bio-geomechanical properties of hydrate-bearing sediments from Nankai Trough
Natural hydrate-bearing sediments from the Nankai Trough, offshore Japan, were studied using the Pressure Core Characterization Tools (PCCTs) to obtain geomechanical, hydrological, electrical, and biological properties under in situ pressure, temperature, and restored effective stress conditions. Measurement results, combined with index-property data and analytical physics-based models, provide un
Authors
J.C. Santamarina, Shifeng Dai, M. Terzariol, Jeonghwan Jang, William F. Waite, William J. Winters, J. Nagao, J. Yoneda, Y. Konno, T. Fujii, K. Suzuki
Metagenomic analysis of planktonic microbial consortia from a non-tidal urban-impacted segment of James River
Knowledge of the diversity and ecological function of the microbial consortia of James River in Virginia, USA, is essential to developing a more complete understanding of the ecology of this model river system. Metagenomic analysis of James River's planktonic microbial community was performed for the first time using an unamplified genomic library and a 16S rDNA amplicon library prepared and seque
Authors
Bonnie L. Brown, Rebecca V LePrell, Rima B Franklin, Maria C Rivera, Francine M Cabral, Hugh L Eaves, Vicki Gaqrdiakos, Kevin P Keegan, Tim L. King
Importance of the colmation layer in the transport and removal of cyanobacteria, viruses, and dissolved organic carbon during natural lake-bank filtration
This study focused on the importance of the colmation layer in the removal of cyanobacteria, viruses, and dissolved organic carbon (DOC) during natural bank filtration. Injection-and-recovery studies were performed at two shallow (0.5 m deep), sandy, near-shore sites at the southern end of Ashumet Pond, a waste-impacted, kettle pond on Cape Cod, MA, that is subject to periodic blooms of cyanobacte
Authors
Ronald W. Harvey, David W. Metge, Denis R. LeBlanc, Jennifer C. Underwood, George R. Aiken, Kenna D. Butler, Timothy D. McCobb, Jay Jasperse
Summary of the Ahankashan Area of Interest
This report summarizes and interprets results of the work in the Ahankashan Area of Interest in northwestern Afghanistan and four study areas—the Ahankashan Prospect Area, Syahsang-Kushkak, Taghab-Soni, and Zakak-e ‘Olya—delineated for their potential undiscovered mineral occurrences with specific emphasis on porphyry copper and related occurrence types. The Area of Interest is underlain by rocks
Authors
Lawrence J. Drew, David M. Sutphin, John C. Mars, Anya K. Bogdanow
Case 3693 Cryptodacus Hendel, 1914 (Insecta: Diptera: Tephritidae): Proposed suppression of Cryptodacus Gundlach, 1862 (Reptilia, Serpentes, Colubridae)
The purpose of this application, under Article 23.9.3, is to conserve current usage of the well-established genus-group name Cryptodacus Hendel, 1914 for a genus of Neotropical fruit flies by suppression of the earlier, unused name Cryptodacus Gundlach, 1862, currently a junior synonym of Arrhyton Günther, 1858, a genus of snakes, under the plenary power of the Commission, in the interest of nomen
Authors
Allen L. Norrbom, Roy W. McDiarmid, Xiao-Lin Chen, King J. David, Marc De Meyer, Amnon Freidberg, Ho-Yeon Han, David Hancock, Gary J. Steck, Frank R. Thompson, Ian M. White, Roberto A. Zucchi