Global volcanic hazards and risk
S. K. Brown, S. C. Loughlin, R. S. J. Sparks, C. Vye-Brown, J. Barclay, E. Calder, E. Cottrell, G. Jolly, J.C. Komorowski, Charlie Mandeville, C. Newhall, J. Palma, S. Potter, G. Valentine
S. C. Loughlin, R. S. J. Sparks, S. K. Brown, S. F. Jenkins, C. Vye-Brown, editor(s)
2015, Book chapter, Global Volcanic Hazards and Risk
An estimated 800 million people live within 100 km of an active volcano in 86 countries and additional overseas territories worldwide [see Chapter 4 and Appendix B]1. Volcanoes are compelling evidence that the Earth is a dynamic planet characterised by endless change and renewal. Humans have always found volcanic activity...
Exposure and food web transfer of pharmaceuticals in ospreys (Pandion haliaetus): Predictive model and empirical data
Rebecca S. Lazarus, Barnett A. Rattner, Bowen Du, Peter C. McGowan, Vicki S. Blazer, Mary Ann Ottinger
2015, Integrated Environmental Assessment and Management (11) 118-129
The osprey (Pandion haliaetus) is a well-known sentinel of environmental contamination, yet no studies have traced pharmaceuticals through the water–fish–osprey food web. A screening-level exposure assessment was used to evaluate the bioaccumulation potential of 113 pharmaceuticals and metabolites, and an artificial sweetener in this food web. Hypothetical concentrations in water...
Paleodischarge of the Mojave River, southwestern U.S.A, investigated with single-pebble measurements of 10Be
Andrew J. Cyr, David M. Miller, Shannon A. Mahan
2015, Geosphere (11) 1158-1171
The paleohydrology of ephemeral stream systems is an important constraint on paleoclimatic conditions in arid environments, but remains difficult to constrain quantitatively. For example, sedimentary records of the size and extent of pluvial lakes in the Mojave Desert have been used as a proxy for Quaternary climate variability. Although the...
Topographic, latitudinal and climatic distribution of Pinus coulteri: geographic range limits are not at the edge of the climate envelope
Nathalie I. Chardon, William K. Cornwell, Lorraine E. Flint, Alan L. Flint, David D. Ackerly
2015, Ecography (38) 590-601
With changing climate, many species are projected to move poleward or to higher elevations to track suitable climates. The prediction that species will move poleward assumes that geographically marginal populations are at the edge of the species' climatic range. We studied Pinus coulteri from the center to the northern (poleward)...
Use of structured decision making to identify monitoring variables and management priorities for salt marsh ecosystems
Hilary A. Neckles, James E. Lyons, Glenn R. Guntenspergen, W. Gregory Shriver, Susan C. Adamowicz
2015, Estuaries and Coasts (38) 1215-1232
Most salt marshes in the USA have been degraded by human activities, and coastal managers are faced with complex choices among possible actions to restore or enhance ecosystem integrity. We applied structured decision making (SDM) to guide selection of monitoring variables and management priorities for salt marshes within the National...
Linking state-and-transition simulation and timber supply models for forest biomass production scenarios
Jennifer Costanza, Robert C. Abt, Alexa McKerrow, Jaime Collazo
2015, AIMS Environmental Science (2) 180-202
We linked state-and-transition simulation models (STSMs) with an economics-based timber supply model to examine landscape dynamics in North Carolina through 2050 for three scenarios of forest biomass production. Forest biomass could be an important source of renewable energy in the future, but there is currently much uncertainty about how biomass...
Spatial and temporal variability in growth of southern flounder (Paralichthys lethostigma)
Stephen R. Midway, Tyler Wagner, Stephen A. Arnott, Patrick Biondo, Fernando Martinez-Andrade, Thomas F. Wadsworth
2015, Fisheries Research (167) 323-332
Delineation of stock structure is important for understanding the ecology and management of many fish populations, particularly those with wide-ranging distributions and high levels of harvest. Southern flounder (Paralichthys lethostigma) is a popular commercial and recreational species along the southeast Atlantic coast and Gulf of Mexico, USA. Recent studies have...
Building a multi-scaled geospatial temporal ecology database from disparate data sources: Fostering open science through data reuse
Patricia A. Soranno, E.G. Bissell, Kendra S. Cheruvelil, Samuel T. Christel, Sarah M. Collins, C. Emi Fergus, Christopher T. Filstrup, Jean-Francois Lapierre, Noah R. Lotting, Samantha K. Oliver, Caren E. Scott, Nicole J. Smith, Scott Stopyak, Shuai Yuan, Mary Tate Bremigan, John A. Downing, Corinna Gries, Emily N. Henry, Nick K. Skaff, Emily H. Stanley, Craig A. Stow, Pang-Ning Tan, Tyler Wagner, Katherine E. Webster
2015, GigaScience (4)
Although there are considerable site-based data for individual or groups of ecosystems, these datasets are widely scattered, have different data formats and conventions, and often have limited accessibility. At the broader scale, national datasets exist for a large number of geospatial features of land, water, and air that are needed...
Soil surface organic layers in Arctic Alaska: spatial distribution, rates of formation, and microclimatic effects
Carson Baughman, Daniel H. Mann, David L. Verbyla, Michael L. Kunz
2015, Journal of Geophysical Research: Biogeosciences (120) 1150-1164
Organic layers of living and dead vegetation cover the ground surface in many permafrost landscapes and play important roles in ecosystem processes. These soil surface organic layers (SSOLs) store large amounts of carbon and buffer the underlying permafrost and its contained carbon from changes in aboveground climate. Understanding the dynamics of SSOLs...
Flood Map for the Winooski River in Waterbury, Vermont, 2014
Scott A. Olson
2015, Scientific Investigations Report 2015-5077
From August 28 to 29, 2011, Tropical Storm Irene delivered rainfall ranging from approximately 4 to more than 7 inches in the Winooski River Basin in Vermont. The rainfall resulted in severe flooding throughout the basin and significant damage along the Winooski River. In response to the flooding, the U.S....
Integrating multiple distribution models to guide conservation efforts of an endangered toad
Michael L. Treglia, Robert N. Fisher, Lee A. Fitzgerald
2015, PLoS ONE (10) 1-18
Species distribution models are used for numerous purposes such as predicting changes in species’ ranges and identifying biodiversity hotspots. Although implications of distribution models for conservation are often implicit, few studies use these tools explicitly to inform conservation efforts. Herein, we illustrate how multiple distribution models developed using distinct sets...
Holocene diatom-derived climate history of Medicine Lake, northern California, USA
Scott W. Starratt
2015, CIRMOUNT Mountain Views (9) 12-20
The Medicine Lake record is unusual because it responds not only to local and regional climate signals, but changes in conditions on Medicine Lake volcano during the Holocene. Ice retreated within the Medicine Lake volcano occurred around 11,400 years ago, followed by filling of two sub-basins. The absence of Cyclotella...
Sediment conditions in the San Antonio River Basin downstream from San Antonio, Texas, 2000-13
Darwin J. Ockerman, J. Ryan Banta, Cassi L. Crow, Stephen P. Opsahl
2015, Fact Sheet 2015-3043
Sediment plays an important role in the ecological health of rivers and estuaries and consequently is an important issue for water-resource managers. To better understand sediment characteristics in the San Antonio River Basin, the U.S. Geological Survey, in cooperation with the San Antonio River Authority, completed a two-part study in...
California State Waters Map Series — Offshore of Point Reyes, California
Janet Watt, Peter Dartnell, Nadine E. Golden, H. Gary Greene, Mercedes D. Erdey, Guy R. Cochrane, Samuel Y. Johnson, Stephen R. Hartwell, Rikk G. Kvitek, Michael W. Manson, Charles A. Endris, Bryan E. Dieter, Ray W. Sliter, Lisa M. Krigsman, Erik Lowe, John L. Chinn
Janet Watt, Susan A. Cochran, editor(s)
2015, Open-File Report 2015-1114
This publication about the Offshore of Point Reyes map area includes ten map sheets that contain explanatory text, in addition to this descriptive pamphlet and a data catalog of geographic information system (GIS) files. Sheets 1, 2, and 3 combine data from four different sonar surveys to generate comprehensive high-resolution...
Ocean circulation and biogeochemistry moderate interannual and decadal surface water pH changes in the Sargasso Sea
Nathalie F. Goodkin, Bo-Shian Wang, Chen-Feng You, Konrad Hughen, Nancy G. Prouty, Nicholas Bates, Scott Doney
2015, Geophysical Research Letters (42) 4931-4939
The oceans absorb anthropogenic CO2 from the atmosphere, lowering surface ocean pH, a concern for calcifying marine organisms. The impact of ocean acidification is challenging to predict as each species appears to respond differently and because our knowledge of natural changes to ocean pH is limited in both time and...
Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Inmachuk, Kugruk, Kiwalik, and Koyuk River drainages, Granite Mountain, and the northern Darby Mountains, Bendeleben, Candle, Kotzebue, and Solomon quadrangles, Alaska
Melanie B. Werdon, Matthew Granitto, Jaime S. Azain
2015, Report
The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and...
Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Kougarok area, Bendeleben and Teller quadrangles, Seward Peninsula, Alaska
Melanie B. Werdon, Matthew Granitto, Jaime S. Azain
2015, Report, Alaska Division of Geological & Geophysical Surveys
The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and...
An empirical evaluation of landscape energetic models: Mallard and American black duck space use during the non-breeding period
William S. Beatty, Elisabeth B. Webb, Dylan C. Kesler, Luke W. Naylor, Andrew H. Raedeke, Dale D. Humburg, John M. Coluccy, G. Soulliere
2015, Journal of Wildlife Management (79) 1141-1151
Bird conservation Joint Ventures are collaborative partnerships between public agencies and private organizations that facilitate habitat management to support waterfowl and other bird populations. A subset of Joint Ventures has developed energetic carrying capacity models (ECCs) to translate regional waterfowl population goals into habitat objectives during the non-breeding period. Energetic...
Incorporating phosphorus cycling into global modeling efforts: a worthwhile, tractable endeavor
Sasha C. Reed, Xiaojuan Yang, Peter E. Thornton
2015, New Phytologist (208) 324-329
Myriad field, laboratory, and modeling studies show that nutrient availability plays a fundamental role in regulating CO2 exchange between the Earth's biosphere and atmosphere, and in determining how carbon pools and fluxes respond to climatic change. Accordingly, global models that incorporate coupled climate–carbon cycle feedbacks made a significant advance with...
Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Haines area, Juneau and Skagway quadrangles, southeast Alaska
Melanie B. Werdon, Matthew Granitto, Jaime S. Azain
2015, Report
The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and...
Context-dependent survival, fecundity and predicted population-level consequences of brucellosis in African buffalo
Erin E. Gorsich, Vanessa O. Ezenwa, Paul C. Cross, Roy G. Bengis, Anna E. Jolles
2015, Journal of Animal Ecology (84) 999-1009
Chronic infections may have negative impacts on wildlife populations, yet their effects are difficult to detect in the absence of long-term population monitoring. Brucella abortus, the bacteria responsible for bovine brucellosis, causes chronic infections and abortions in wild and domestic ungulates, but its impact on population dynamics is not...
Remote sensing change detection methods to track deforestation and growth in threatened rainforests in Madre de Dios, Peru
Jacob S. Shermeyer, Barry N. Haack
2015, Journal of Applied Remote Sensing (9)
Two forestry-change detection methods are described, compared, and contrasted for estimating deforestation and growth in threatened forests in southern Peru from 2000 to 2010. The methods used in this study rely on freely available data, including atmospherically corrected Landsat 5 Thematic Mapper and Moderate Resolution Imaging Spectroradiometer (MODIS) vegetation continuous...
Improving estimates of tree mortality probability using potential growth rate
Adrian J. Das, Nathan L. Stephenson
2015, Canadian Journal of Forest Research (45) 920-928
Tree growth rate is frequently used to estimate mortality probability. Yet, growth metrics can vary in form, and the justification for using one over another is rarely clear. We tested whether a growth index (GI) that scales the realized diameter growth rate against the potential diameter growth rate (PDGR) would...
Linking dynamic habitat selection with wading bird foraging distributions across resource gradients
James M. Beerens, Erik G. Noonberg, Dale E. Gawlik
2015, PLoS ONE (10) 1-25
Species distribution models (SDM) link species occurrence with a suite of environmental predictors and provide an estimate of habitat quality when the variable set captures the biological requirements of the species. SDMs are inherently more complex when they include components of a species' ecology such as conspecific attraction and behavioral...
Geochemical reanalysis of historical U.S. Geological Survey sediment samples from the Tonsina area, Valdez Quadrangle, Alaska
Melanie B. Werdon, Matthew Granitto, Jaime S. Azain
2015, Report
The State of Alaska’s Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska’s statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and...
