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Page 1395, results 34851 - 34875

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Self-recognition in corals facilitates deep-sea habitat engineering
Sebastian J Hennige, Cheryl L. Morrison, Armin U. Form, Janina Buscher, Nicholas A. Kamenos, J. Murray Roberts
2014, Scientific Reports (4) 1-7
The ability of coral reefs to engineer complex three-dimensional habitats is central to their success and the rich biodiversity they support. In tropical reefs, encrusting coralline algae bind together substrates and dead coral framework to make continuous reef structures, but beyond the photic zone, the cold-water coral Lophelia pertusa also...
Changes in vegetation and biological soil crust communities on sand dunes stabilizing after a century of grazing on San Miguel Island, Channel Island National Park, California
Kristine L. Zellman
2014, Monographs of the Western North American Naturalist (7) 225-245
San Miguel Island is the westernmost of the California Channel Islands and one of the windiest areas on the west coast of North America. The majority of the island is covered by coastal sand dunes, which were stripped of vegetation and subsequently mobilized due to droughts and sheep ranching during...
The temperature-productivity squeeze: Constraints on brook trout growth along an Appalachian river continuum
J. Todd Petty, David Thorne, Brock M. Huntsman, Patricia M. Mazik
2014, Hydrobiologia (727) 151-166
We tested the hypothesis that brook trout growth rates are controlled by a complex interaction of food availability, water temperature, and competitor density. We quantified trout diet, growth, and consumption in small headwater tributaries characterized as cold with low food and high trout density, larger tributaries characterized as cold with...
Normative standards for land use in Vermont: Implications for biodiversity
Charles A. Bettigole, Therese M. Donovan, Robert Manning, John Austin
2014, Biological Conservation (169) 392-400
The conversion of natural lands to developed uses poses a great threat to global terrestrial biodiversity. Natural resource managers, tasked with managing wildlife as a public trust, require techniques for predicting how much and where wildlife habitat is likely to be converted in the future. Here, we develop a methodology to estimate the “social carrying...
Predicting impacts of future human population growth and development on occupancy rates of forest-dependent birds
Michelle L. Brown, Therese Donovan, W. Scott Schwenk, David M. Theobald
2014, Biological Conservation (170) 311-320
Forest loss and fragmentation are among the largest threats to forest-dwelling wildlife species today, and projected increases in human population growth are expected to increase these threats in the next century. We combined spatially-explicit growth models with wildlife distribution models to predict the effects of human development on 5 forest-dependent...
Influence of variable rainbow smelt and gizzard shad abundance on walleye diets and growth
Mark J. Fincel, Daniel J. Dembkowski, Steven R. Chipps
2014, Lake and Reservoir Management (30) 258-267
Prey availability influences growth and condition of walleye (Sander vitreus) in large systems. In Lake Oahe, South Dakota, rainbow smelt (Osmerus mordax) and gizzard shad (Dorosoma cepedianum) are primary prey of walleye, but their abundance varies substantially year to year. To evaluate the influence of gizzard...
Retirement investment theory explains patterns in songbird nest-site choice
Henry M. Streby, Jeanine M. Refsnider, Sean M. Peterson, David E. Andersen
2014, Proceedings of the Royal Society B: Biological Sciences (281)
When opposing evolutionary selection pressures act on a behavioural trait, the result is often stabilizing selection for an intermediate optimal phenotype, with deviations from the predicted optimum attributed to tracking a moving target, development of behavioural syndromes or shifts in riskiness over an individual's lifetime. We investigated nest-site choice by...
A new map of global ecological land units — An ecophysiographic stratification approach
Roger Sayre, Jack Dangermond, Charlie Frye, Randy Vaughan, Peter Aniello, Sean P. Breyer, Douglas Cribbs, Dabney Hopkins, Richard Nauman, William Derrenbacher, Dawn J. Wright, Clint Brown, Charles Convis, Jonathan H. Smith, Laurence Benson, D. Paco VanSistine, Harumi Warner, Jill Janene Cress, Jeffrey J. Danielson, Sharon L. Hamann, Thomas Cecere, Ashwan D. Reddy, Devon Burton, Andrea Grosse, Diane TRUE, Marc Metzger, Jens Hartmann, Nils Moosdorf, Hans Durr, Marc Paganini, Pierre Defourny, Olivier Arino, Simone Maynard, Mark Anderson, Patrick Comer
2014, Book
In response to the need and an intergovernmental commission for a high resolution and data-derived global ecosystem map, land surface elements of global ecological pattern were characterized in an ecophysiographic stratification of the planet. The stratification produced 3,923 terrestrial ecological land units (ELUs) at a base resolution of 250 meters....
Incorporating detection probability into northern Great Plains pronghorn population estimates
Christopher N. Jacques, Jonathan A. Jenks, Troy W. Grovenburg, Robert W. Klaver, Christopher S. DePerno
2014, Journal of Wildlife Management (78) 164-174
Pronghorn (Antilocapra americana) abundances commonly are estimated using fixed-wing surveys, but these estimates are likely to be negatively biased because of violations of key assumptions underpinning line-transect methodology. Reducing bias and improving precision of abundance estimates through use of detection probability and mark-resight models may allow for more responsive pronghorn...
13.3 – Stable Isotope Geochemistry of Mineral Deposits
W.C. Pat Shanks III
2014, Book chapter, Reference module in earth systems and environmental sciences: Treatise on geochemistry (Second Edition)
In this chapter, the intent is to summarize the results of traditional stable isotope studies (mainly H, B, O, C, and S) that have greatly contributed to the understanding of ore-forming processes over the last 60 years and to provide an up-to-date assessment of the application of new nontraditional isotope...
Development of a generic auto-calibration package for regional ecological modeling and application in the Central Plains of the United States
Yiping Wu, Shuguang Liu, Zhengpeng Li, Devendra Dahal, Claudia J. Young, Gail L. Schmidt, Jinxun Liu, Brian Davis, Terry L. Sohl, Jeremy M. Werner, Jennifer Oeding
2014, Ecological Informatics (19) 35-46
Process-oriented ecological models are frequently used for predicting potential impacts of global changes such as climate and land-cover changes, which can be useful for policy making. It is critical but challenging to automatically derive optimal parameter values at different scales, especially at regional scale, and validate the model performance. In...
Advantages of active love wave techniques in geophysical characterizations of seismographic station - Case studies in California and the central and eastern United States
Antony Martin, Alan K. Yong, Larry A. Salomone
2014, Conference Paper, Tenth U.S. National Conference on Earthquake Engineering: Frontiers of Earthquake Engineering
Active-source Love waves, recorded by the multi-channel analysis of surface wave (MASLW) technique, were recently analyzed in two site characterization projects. Between 2010 and 2012, the 2009 American Recovery and Reinvestment Act (ARRA) funded GEOVision to conduct geophysical investigations at 191 seismographic stations in California and the Central Eastern U.S....
Waterfowl ecology and management
Joshua T. Ackerman, Mark P. Herzog, Gregory S. Yarris, Michael L. Casazza, E. Burns, John M. Eadie
2014, Book chapter, Suisun Marsh: Ecological history and possible futures
No abstract available....
Spectroscopy from Space
Roger N. Clark, Gregg A. Swayze, Robert R. Carlson, Will Grundy, Keith Noll
2014, Reviews in Mineralogy and Geochemistry (78) 399-446
This chapter reviews detection of materials on solid and liquid (lakes and ocean) surfaces in the solar system using ultraviolet to infrared spectroscopy from space, or near space (high altitude aircraft on the Earth), or in the case of remote objects, earth-based and earth-orbiting telescopes. Point spectrometers and imaging spectrometers...
Preliminary testing of flow-ecology hypotheses developed for the GCP LCC region
Shannon K. Brewer, Mary Davis
2014, Cooperator Science Series FWS/CSS-108-2014
The Ecological Limits of Hydrological Alteration (ELOHA) framework calls for the development of flow-ecology hypotheses to support protection of the flow regime from ecologically harmful alteration due to human activities. As part of a larger instream flow project for the Gulf Coast Prairie Landscape Conservation Cooperative (GCP LCC), regional flow-ecology...
Effects of iron on optical properties of dissolved organic matter
Brett Poulin, Joseph N. Ryan, George R. Aiken
2014, Environmental Science & Technology (48) 10098-10106
Iron is a source of interference in the spectroscopic analysis of dissolved organic matter (DOM); however, its effects on commonly employed ultraviolet and visible (UV–vis) light adsorption and fluorescence measurements are poorly defined. Here, we describe the effects of iron(II) and iron(III) on the UV–vis absorption and fluorescence of solutions...
Effects of tillage and application rate on atrazine transport to subsurface drainage: Evaluation of RZWQM using a six-year field study
Robert W. Malone, Bernard T. Nolan, Liwang Ma, Rameshwar S. Kanwar, Carl H. Pederson, Philip Heilman
2014, Agricultural Water Management (132) 10-22
Well tested agricultural system models can improve our understanding of the water quality effects of management practices under different conditions. The Root Zone Water Quality Model (RZWQM) has been tested under a variety of conditions. However, the current model's ability to simulate pesticide transport to subsurface drain flow over a...
Finding that academic position
David W. Willis, Daniel A. Isermann
William W. Taylor, Abigail J. Lynch, Nancy J. Leonard, editor(s)
2014, Book chapter, Future of fisheries: Perspectives for emerging professionals
No abstract available....
Pb-Sr-Nd-O isotopic characterization of Mesozoic rocks throughout the northern end of the Peninsular Ranges batholith: Isotopic evidence for the magmatic evolution of oceanic arc–continental margin accretion during the Late Cretaceous of southern California
Ronald W. Kistler, Joseph L. Wooden, Wayne R. Premo, Douglas M. Morton
2014, Book chapter, Peninsular ranges Batholith, Baja California and southern California: Geological Society of America Memoir 211
Within the duration of the U.S. Geological Survey (USGS)–based Southern California Areal Mapping Project (SCAMP), many samples from the northern Peninsular Ranges batholith were studied for their whole-rock radioisotopic systematics (rubidium-strontium [Rb-Sr], uranium-thorium-lead [U-Th-Pb], and samarium-neodymium [Sm-Nd]), as well as oxygen (O), a stable isotope. The results of three main...
Mapping saltwater intrusion in the Biscayne Aquifer, Miami-Dade County, Florida using transient electromagnetic sounding
David V. Fitterman
2014, Journal of Environmental & Engineering Geophysics (19) 33-43
Saltwater intrusion in southern Florida poses a potential threat to the public drinking-water supply that is typically monitored using water samples and electromagnetic induction logs collected from a network of wells. Transient electromagnetic (TEM) soundings are a complementary addition to the monitoring program because of their ease of use, low...
A design for a sustained assessment of climate forcings and feedbacks on land use land cover change
Thomas Loveland, Rezaul Mahmood
2014, Bulletin of the American Meteorological Society (95) 1563-1572
Land use and land cover change (LULCC) significantly influences the climate system. Hence, to prepare the nation for future climate change and variability, a sustained assessment of LULCC and its climatic impacts needs to be undertaken. To address this objective, not only do we need to determine contemporary trends in...
Thermochronology of Cretaceous batholithic rocks in the northern Peninsular Ranges batholith, southern California: Implications for the Late Cretaceous tectonic evolution of southern California
Daniel P. Miggins, Wayne R. Premo, Lawrence W. Snee, Ross Yeoman, Nancy D. Naeaer, Charles W. Naeser, Douglas M. Morton
2014, Book chapter, Peninsular ranges Batholith, Baja California and southern California: Geological Society of America Memoir 211
The thermochronology for several suites of Mesozoic metamorphic and plutonic rocks collected throughout the northern Peninsular Ranges batholith (PRB) was studied as part of a collaborative isotopic study to further our understanding of the magmatic and tectonic history of southern California. These sample suites include: a traverse through the plutonic...
Latest Quaternary paleoseismology and evidence of distributed dextral shear along the Mohawk Valley fault zone, northern Walker Lane, California
Ryan D. Gold, Richard W. Briggs, Stephen Personius, Anthony J. Crone, Shannon A. Mahan, Stephen Angster
2014, Journal of Geophysical Research B: Solid Earth (119) 5014-5032
The dextral-slip Mohawk Valley fault zone (MVFZ) strikes northwestward along the eastern margin of the Sierra Nevada in the northern Walker Lane. Geodetic block modeling indicates that the MVFZ may accommodate ~3 mm/yr of regional dextral strain, implying that it is the highest slip-rate strike-slip fault in the region; however,...
Carbonate rocks of the Seward Peninsula, Alaska: Their correlation and paleogeographic significance
Julie A. Dumoulin, Alta Harris, John E. Repetski
2014, GSA Special Papers (506) 59-110
Paleozoic carbonate strata deposited in shallow platform to off-platform settings occur across the Seward Peninsula and range from unmetamorphosed Ordovician–Devonian(?) rocks of the York succession in the west to highly deformed and metamorphosed Cambrian–Devonian units of the Nome Complex in the east. Faunal and lithologic correlations indicate that early Paleozoic...