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Publications

These publications showcase the significant science conducted in our Science Centers.

Filter Total Items: 16783

Finite-frequency wave propagation through outer rise fault zones and seismic measurements of upper mantle hydration

Effects of serpentine-filled fault zones on seismic wave propagation in the upper mantle at the outer rise of subduction zones are evaluated using acoustic wave propagation models. Modeled wave speeds depend on azimuth, with slowest speeds in the fault-normal direction. Propagation is fastest along faults, but, for fault widths on the order of the seismic wavelength, apparent wave speeds in this d
Authors
Nathaniel C. Miller, Daniel Lizarralde

Consistent response of bird populations to climate change on two continents

Global climate change is a major threat to biodiversity. Large-scale analyses have generally focused on the impacts of climate change on the geographic ranges of species and on phenology, the timing of ecological phenomena. We used long-term monitoring of the abundance of breeding birds across Europe and the United States to produce, for both regions, composite population indices for two groups of
Authors
Philip A. Stephens, Lucy R. Mason, Rhys E. Green, Richard D. Gregory, John R. Sauer, Jamie Alison, Ainars Aunins, Lluís Brotons, Stuart H.M. Butchart, Tommaso Campedelli, Tomasz Chodkiewicz, Przemyslaw Chylarecki, Olivia Crowe, Jaanus Elts, Virginia Escandell, Ruud P.B. Foppen, Henning Heldbjerg, Sergi Herrando, Magne Husby, Frédéric Jiguet, Aleksi Lehikoinen, Åke Lindström, David G. Noble, Jean-Yves Paquet, Jiri Reif, Thomas Sattler, Tibor Szép, Norbert Teufelbauer, Sven Trautmann, Arco Van Strien, Chris A.M. van Turnhout, Petr Vorisek, Stephen G. Willis

Organic-matter retention and macroinvertebrate utilization of seasonally inundated bryophytes in a mid-order Piedmont River

There is increased understanding of the role of bryophytes in supporting invertebrate biomass and for their influence on nutrient cycling and carbon balance in aquatic systems, but the structural and functional role of bryophytes growing in seasonally inundated habitats is substantially less studied. We conducted a study on the Middle Oconee River, near Athens, GA, to assess invertebrate abundance
Authors
James Wood, Meryom Pattillo, Mary Freeman

Detecting failure of climate predictions

The practical consequences of climate change challenge society to formulate responses that are more suited to achieving long-term objectives, even if those responses have to be made in the face of uncertainty1, 2. Such a decision-analytic focus uses the products of climate science as probabilistic predictions about the effects of management policies3. Here we present methods to detect when climate
Authors
Michael C. Runge, Julienne C. Stroeve, Andrew P. Barrett, Eve McDonald-Madden

Estimating indices of range shifts in birds using dynamic models when detection is imperfect

There is intense interest in basic and applied ecology about the effect of global change on current and future species distributions. Projections based on widely used static modeling methods implicitly assume that species are in equilibrium with the environment and that detection during surveys is perfect. We used multiseason correlated detection occupancy models, which avoid these assumptions, to
Authors
Matthew J. Clement, James E. Hines, James D. Nichols, Keith L. Pardieck, David J. Ziolkowski

Experience drives innovation of new migration patterns of whooping cranes in response to global change

Anthropogenic changes in climate and land use are driving changes in migration patterns of birds worldwide. Spatial changes in migration have been related to long-term temperature trends, but the intrinsic mechanisms by which migratory species adapt to environmental change remain largely unexplored. We show that, for a long-lived social species, older birds with more experience are critical for in
Authors
Claire S. Teitelbaum, Sarah J. Converse, William F. Fagan, Katrin Böhning-Gaese, Robert B. O'Hara, Anne E Lacy, Thomas Mueller

Technical Note: Harmonizing met-ocean model data via standard web services within small research groups

Work over the last decade has resulted in standardised web services and tools that can significantly improve the efficiency and effectiveness of working with meteorological and ocean model data. While many operational modelling centres have enabled query and access to data via common web services, most small research groups have not. The penetration of this approach into the research community, wh
Authors
Richard P. Signell, E. Camossi

Submarine landslides in Arctic sedimentation: Canada Basin

Canada Basin of the Arctic Ocean is the least studied ocean basin in the World. Marine seismic field programs were conducted over the past 6 years using Canadian and American icebreakers. These expeditions acquired more than 14,000 line-km of multibeam bathymetric and multi-channel seismic reflection data over abyssal plain, continental rise and slope regions of Canada Basin; areas where little
Authors
David C. Mosher, John Shimeld, Deborah R. Hutchinson, N Lebedova-Ivanova, C. Chapman

Metformin and other pharmaceuticals widespread in wadeable streams of the southeastern United States

Pharmaceutical contaminants are growing aquatic-health concerns and largely attributed to wastewater treatment facility (WWTF) discharges. Five biweekly water samples from 59 small Piedmont (United States) streams were analyzed for 108 pharmaceuticals and degradates using high-performance liquid chromatography and tandem mass spectrometry. The antidiabetic metformin was detected in 89% of samples
Authors
Paul M. Bradley, Celeste A. Journey, Daniel T. Button, Daren Carlisle, Jimmy M. Clark, Barbara Mahler, Naomi Nakagaki, Sharon L. Qi, Ian R. Waite, Peter C. Van Metre

Shallow geology, sea-floor texture, and physiographic zones of Vineyard and western Nantucket Sounds, Massachusetts

Geologic, sediment texture, and physiographic zone maps characterize the sea floor of Vineyard and western Nantucket Sounds, Massachusetts. These maps were derived from interpretations of seismic-reflection profiles, high-resolution bathymetry, acoustic-backscatter intensity, bottom photographs/video, and surficial sediment samples collected within the 494-square-kilometer study area. Interpretati
Authors
Wayne E. Baldwin, David S. Foster, Elizabeth A. Pendleton, Walter A. Barnhardt, William C. Schwab, Brian D. Andrews, Seth D. Ackerman

Flood-inundation maps for the Green River in Colrain, Leyden, and Greenfield, Massachusetts, from U.S. Geological Survey streamgage 01170100 Green River near Colrain to the confluence with the Deerfield River

The U.S. Geological Survey developed flood elevations in cooperation with the Federal Emergency Management Agency for a 14.3-mile reach of the Green River in Colrain, Leyden, and Greenfield, Massachusetts, to assist landowners and emergency management workers to prepare for and recover from floods. The river reach extends from the U.S. Geological Survey Green River near Colrain, MA (01170100) stre
Authors
Robert H. Flynn, Gardner C. Bent, Pamela J. Lombard

Tropical storm Irene flood of August 2011 in northwestern Massachusetts

A Presidential disaster was declared in northwestern Massachusetts, following flooding from tropical storm Irene on August 28, 2011. During the storm, 3 to 10 inches of rain fell on soils that were susceptible to flash flooding because of wet antecedent conditions. The gage height at one U.S. Geological Survey streamgage rose nearly 20 feet in less than 4 hours because of the combination of satura
Authors
Gardner C. Bent, Scott A. Olson, Andrew J. Massey