Index Catalog // ScholarsArchive@OSU

Chemical content and rumen degradability of desert steppe pasture of Mongolia

Creator:: Damiran, Daalkhaijav and Ts, Altanzul
Abstract:: Desert, desert-steppe (Gobi) zone is the largest province by area (165,000 square kilometres) of Mongolia. The Gobi contains some 560 plant species, in 80 different vegetation associations (Swift, 1991). There are number of results of nutritive value of desert-steppe’s pasture grass. Mongolia’s dry climate means that pasture grasses have less...
Resource Type:: Research Paper
Full Text:: . Bioproductivity and its dynamics of Desert-steppe’s pasture grass. Msc. Thesis. Mongolian National Agricultural

Magnetic map in nonanadromous Atlantic salmon

Creator:: Scanlan, Michelle M., Putman, Nathan F., Pollock, Amanda M., and Noakes, David L.
Abstract:: Long-distance migrants, including Pacific salmon (Oncorhynchus spp), can use geomagnetic information to navigate. We tested the hypothesis that a “magnetic map” (i.e., an ability to extract positional information from Earth’s magnetic field) also exists in a population of salmon that do not undertake oceanic migrations. This study examined juvenile Atlantic...
Resource Type:: Article

Warm spring reduced carbon cycle impact of the 2012 US summer drought

Creator:: Wolf, Sebastian, Keenan, Trevor F., Fisher, Joshua B., Baldocchi, Dennis D., Desai, Ankur R., Richardson, Andrew D., Scott, Russell L., Law, Beverly E., Litvak, Marcy E., Brunsell, Nathaniel A., Peters, Wouter, and van der Laan-Luijkx, Ingrid T.
Abstract:: The global terrestrial carbon sink offsets one-third of the world’s fossil fuel emissions, but the strength of this sink is highly sensitive to large-scale extreme events. In 2012, the contiguous United States experienced exceptionally warm temperatures and the most severe drought since the Dust Bowl era of the 1930s, resulting...
Resource Type:: Article

Chemical dispersants can suppress the activity of natural oil-degrading microorganisms

Creator:: Kleindienst, Sara, Seidel, Michael, Ziervogel, Kai, Grim, Sharon, Loftis, Kathy, Harrison, Sarah, Malkin, Sairah Y., Perkins, Matthew J., Field, Jennifer, Sogin, Mitchell L., Dittmar, Thorsten, Passow, Uta, Medeiros, Patricia M., and Joye, Samantha B.
Abstract:: During the Deepwater Horizon oil well blowout in the Gulf of Mexico, the application of 7 million liters of chemical dispersants aimed to stimulate microbial crude oil degradation by increasing the bioavailability of oil compounds. However, the effects of dispersants on oil biodegradation rates are debated. In laboratory experiments, we...
Resource Type:: Article

Invasive mammal eradication on islands results in substantial conservation gains

Creator:: Jones, Holly P., Holmes, Nick D., Butchart, Stuart H. M., Tershy, Bernie R., Kappes, Peter J., Corkery, Ilse, Aguirre-Muñoz, Alfonso, Armstrong, Doug P., Bonnaud, Elsa, Burbidge, Andrew A., Campbell, Karl, Courchamp, Franck, Cowan, Philip E., Cuthbert, Richard J., Ebbert, Steve, Genovesi, Piero, Howald, Gregg R., Keitt, Bradford S., Kress, Stephen W., Miskelly, Colin M., Oppel, Steffen, Poncet, Sally, Rauzon, Mark J., Rocamora, Gérard, Russell, James C., Samaniego-Herrera, Araceli, Seddon, Philip J., Spatz, Dena R., Towns, David R., and Croll, Donald A.
Abstract:: More than US$21 billion is spent annually on biodiversity conservation. Despite their importance for preventing or slowing extinctions and preserving biodiversity, conservation interventions are rarely assessed systematically for their global impact. Islands house a disproportionately higher amount of biodiversity compared with mainlands, much of which is highly threatened with extinction....
Resource Type:: Article

Deciphering ocean carbon in a changing world

Creator:: Moran, Mary Ann, Kujawinski, Elizabeth B., Stubbins, Aron, Fatland, Rob, Aluwihare, Lihini I., Buchan, Alison, Crump, Byron C., Dorrestein, Pieter C., Dyhrman, Sonya T., Hess, Nancy J., Howe, Bill, Longnecker, Krista, Medeiros, Patricia M., Niggemann, Jutta, Obernosterer, Ingrid, Repeta, Daniel J., and Waldbauer, Jacob R.
Abstract:: Dissolved organic matter (DOM) in the oceans is one of the largest pools of reduced carbon on Earth, comparable in size to the atmospheric CO₂ reservoir. A vast number of compounds are present in DOM, and they play important roles in all major element cycles, contribute to the storage of...
Resource Type:: Article
Full Text:: 92037; kDepartment of Earth and Environmental Science, Columbia University, Palisades, NY 10964; lLamont

Micromechanics of cellularized biopolymer networks

Creator:: Jones, Christopher A. R., Cibula, Matthew, Feng, Jingchen, Krnacik, Emma A., McIntyre, David H., Levine, Herbert, and Sun, Bo
Abstract:: Collagen gels are widely used in experiments on cell mechanics because they mimic the extracellular matrix in physiological conditions. Collagen gels are often characterized by their bulk rheology; however, variations in the collagen fiber microstructure and cell adhesion forces cause the mechanical properties to be inhomogeneous at the cellular scale....
Resource Type:: Article
Full Text:: Proceedings of the National Academy of Sciences of the United States of America Collagen gels are widely used

The genome of Aiptasia, a sea anemone model for coral symbiosis

Creator:: Baumgarten, Sebastian, Simakov, Oleg, Esherick, Lisl Y., Liew, Yi Jin, Lehnert, Erik M., Michell, Craig T., Li, Yong, Hambleton, Elizabeth A., Guse, Annika, Oates, Matt E., Gough, Julian, Weis, Virginia M., Aranda, Manuel, Pringle, John R., and Voolstra, Christian R.
Abstract:: The most diverse marine ecosystems, coral reefs, depend upon a functional symbiosis between a cnidarian animal host (the coral) and intracellular photosynthetic dinoflagellate algae. The molecular and cellular mechanisms underlying this endosymbiosis are not well understood, in part because of the difficulties of experimental work with corals. The small sea...
Resource Type:: Article

Backbones of evolutionary history test biodiversity theory for microbes

Creator:: O'Dwyer, James P., Kembel, Steven W., and Sharpton, Thomas J.
Abstract:: Identifying the ecological and evolutionary mechanisms that determine biological diversity is a central question in ecology. In microbial ecology, phylogenetic diversity is an increasingly common and relevant means of quantifying community diversity, particularly given the challenges in defining unambiguous species units from environmental sequence data. We explore patterns of phylogenetic...
Resource Type:: Article

Long-term litter decomposition controlled by manganese redox cycling

Creator:: Keiluweit, Marco, Nico, Peter, Harmon, Mark E., Mao, Jingdong, Pett-Ridge, Jennifer, and Kleber, Markus
Abstract:: Litter decomposition is a keystone ecosystem process impacting nutrient cycling and productivity, soil properties, and the terrestrial carbon (C) balance, but the factors regulating decomposition rate are still poorly understood. Traditional models assume that the rate is controlled by litter quality, relying on parameters such as lignin content as predictors....
Resource Type:: Article

Nature as capital: Advancing and incorporating ecosystem services in United States federal policies and programs

Creator:: Schaefer, Mark, Goldman, Erica, Bartuska, Ann M., Sutton-Grier, Ariana, and Lubchenco, Jane
Abstract:: The concept of nature as capital is gaining visibility in policies and practices in both the public and private sectors. This change is due to an improved ability to assess and value ecosystem services, as well as to a growing recognition of the potential of an ecosystem services approach to...
Resource Type:: Article
Full Text:: ecosystem services in United States federal policies and programs. Proceedings of the National Academy of

Three- or Four-Section Displays for Permissive Left Turns? Some Evidence from a Simulator-Based Analysis of Driver Performance

Creator:: Hurwitz, David S., Monsere, Christopher M., Marnell, Patrick, and Paulsen, Kirk
Abstract:: This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by the National Academy of Sciences and can be found at: https://doi.org/10.3141/2463-01
Resource Type:: Article and Preprint
Full Text:: /2463-01 National Academy of Sciences Accepted Manuscript http://cdss.library.oregonstate.edu/sa

Analysis of clock-regulated genes in Neurospora reveals widespread posttranscriptional control of metabolic potential

Creator:: Hurley, Jennifer M., Dasgupta, Arko, Emerson, Jillian M., Smith, Kristina M., Freitag, Michael, Zhou, Xiaoying, Ringelberg, Carol S., Knabe, Nicole, Lipzen, Anna, Linduist, Erika A., Daum, Christopher G., Barry, Kerrie W., Grigoriev, Igor V., Galagan, James E., Bell-Pederson, Deborah, Cheng, Chao, Loros, Jennifer J., and Dunlap, Jay C.
Abstract:: Neurospora crassa has been for decades a principal model for filamentous fungal genetics and physiology as well as for understanding the mechanism of circadian clocks. Eukaryotic fungal and animal clocks comprise transcription-translation-based feedback loops that control rhythmic transcription of a substantial fraction of these transcriptomes, yielding the changes in protein...
Resource Type:: Article

Vegetation dynamics and rainfall sensitivity of the Amazon

Creator:: Hilker, Thomas, Lyapustin, Alexei I., Tucker, Compton J., Hall, Forrest G., Myneni, Ranga B., Wang, Yujie, Bi, Jian, Mendes de Moura, Yhasmin, and Sellers, Piers J.
Abstract:: We show that the vegetation canopy of the Amazon rainforest is highly sensitive to changes in precipitation patterns and that reduction in rainfall since 2000 has diminished vegetation greenness across large parts of Amazonia. Large-scale directional declines in vegetation greenness may indicate decreases in carbon uptake and substantial changes in...
Resource Type:: Article
Full Text:: sensitivity of the Amazon. Proceedings of the National Academy of Sciences, 111(45), 16041-16046. doi

The trousers problem revisited

Creator:: Manogue, Corinne A., Copeland, Ed, and Dray, Tevian
Abstract:: Anderson and DeWitt considered the quantization of a massless scalar field in a spacetime whose spacelike hypersurfaces change topology and concluded that the topology change gives rise to infinite particle and energy production. We show here that their calculations are insufficient and that their propagation rule is unphysical. However, our...
Resource Type:: Article

The Irish potato famine pathogen Phytophthora infestans originated in central Mexico rather than the Andes

Creator:: Goss, Erica M., Tabima, Javier F., Cooke, David E. L., Restrepo, Silvia, Fry, William E., Forbes, Gregory A., Fieland, Valerie J., Cardenas, Martha, and Grünwald, Niklaus J.
Abstract:: Phytophthora infestans is a destructive plant pathogen best known for causing the disease that triggered the Irish potato famine and remains the most costly potato pathogen to manage worldwide. Identification of P. infestan’s elusive center of origin is critical to understanding the mechanisms of repeated global emergence of this pathogen....
Resource Type:: Article
Full Text:: Academy of Sciences, 111(24). doi:10.1073/pnas.1401884111 10.1073/pnas.1401884111 National Academy of

Radiometric ⁸¹Kr dating identifies 120,000-year-old ice at Taylor Glacier, Antarctica

Creator:: Buizert, Christo, Baggenstos, Daniel, Jiang, Wei, Purtschert, Roland, Petrenko, Vasilii V., Lu, Zheng-Tian, Mueller, Peter, Lee, James, Severinghaus, Jeffrey P., and Brook, Edward J.
Abstract:: We present the first successful ⁸¹Kr-Kr radiometric dating of ancient polar ice. Krypton was extracted from the air bubbles in four ~350 kg polar ice samples from Taylor Glacier in the McMurdo Dry Valleys, Antarctica, and dated using Atom Trap Trace Analysis (ATTA). The ⁸¹Kr radiometric ages agree with independent...
Resource Type:: Article
Full Text:: . Proceedings of the National Academy of Sciences, 111 (19), 6876-6881. doi:10.1073/pnas.1320329111 10.1073

Developing a broader scientific foundation for river restoration: Columbia River food webs

Creator:: Naiman, Robert J., Alldredge, J. Richard, Beauchamp, David A., Bisson, Peter A., Congleton, James, Henny, Charles J., Huntly, Nancy, Lamberson, Roland, Levings, Colin, Merrill, Erik N., Pearcy, William G., Rieman, Bruce E., Ruggerone, Gregory T., Scarnecchia, Dennis, Smouse, Peter E., and Wood, Chris C.
Abstract:: Well-functioning food webs are fundamental for sustaining rivers as ecosystems and maintaining associated aquatic and terrestrial communities. The current emphasis on restoring habitat structure-without explicitly considering food webs-has been less successful than hoped in terms of enhancing the status of targeted species and often overlooks important constraints on ecologically effective...
Resource Type:: Article
Full Text:: ) Restoration of ecosystem services for environmental markets. Science 325(5940): 575–576. 4. Palmer MA (2010

Global climate evolution during the last deglaciation

Creator:: Clark, Peter U., Shakun, Jeremy D., Baker, Paul A., Bartlein, Patrick J., Brewer, Simon, Brook, Edward J., Carlson, Anders E., Cheng, Hai, Kaufman, Darrell S., Liu, Zhengyu, Marchitto, Thomas M., Mix, Alan C., Morrill, Carrie, Otto-Bliesner, Bette L., Pahnke, Katharina, Russell, James M., Whitlock, Cathy, Adkins, Jess F., Blois, Jessica L., Clark, Jorie, Colman, Steven M., Curry, William B., Flower, Ben P., He, Feng, Johnson, Thomas C., Lynch-Stieglitz, Jean, Markgraf, Vera, McManus, Jerry, Mitrovica, Jerry X., Moreno, Patricio I., and Williams, John W.
Abstract:: Deciphering the evolution of global climate from the end of the Last Glacial Maximum approximately 19 ka to the early Holocene 11 ka presents an outstanding opportunity for understanding the transient response of Earth's climate system to external and internal forcings. During this interval of global warming, the decay of...
Resource Type:: Article
Full Text:: ; vCollege of Marine Science, University of South Florida, St. Petersburg, FL 33701; wSchool of Earth and

Complementation of tobacco etch potyvirus mutants by active RNA polymerase expressed in transgenic cells

Creator:: Li, Xiao Hua and Carrington, James C.
Abstract:: A genetic complementation system was developed in which tobacco etch virus (TEV) polymerase (NIb)- expressing transgenic plants or protoplasts were inoculated with NIb-defective TEV mutants. A β-glucuronidase (GUS) reporter gene integrated into the genomes of parental and four mutant viruses was used to assay RNA amplification. Two mutants (termed VNN...
Resource Type:: Article
Full Text:: the National Institutes of Health (AI27832) and the National Science Foundation (IBN-9158559). 1

Small RNAs serve as a genetic buffer against genomic shock in Arabidopsis interspecific hybrids and allopolyploids

Creator:: Ha, Misook, Lu, Jie, Ramachandran, Vanitharani, Kasschau, Krisitin D., Chapman, Elisabeth J., Carrington, James C., Chen, Xuemei, Wang, Xue-Jei, and Chen, Z. Jeffrey
Abstract:: Small RNAs, including microRNAs (miRNAs), small interfering RNAs (siRNAs), and trans-acting siRNAs (tasiRNAs), control gene expression and epigenetic regulation. Although the roles of miRNAs and siRNAs have been extensively studied, their expression diversity and evolution in closely related species and interspecific hybrids are poorly understood. Here, we show comprehensive analyses...
Resource Type:: Article
Full Text:: Genetics and Developmental Biology, Chinese Academy of Sciences, 5 Datun Road, Chaoyang District, Beijing

Identification of MIR390a precursor processing defective mutants in Arabidopsis by direct genome sequencing

Creator:: Cuperus, Josh T., Montgomery, Taiowa A., Fahlgren, Noah, Burke, Russell T., Townsend, Tiffany, Sullivan, Christopher M., and Carrington, James C.
Abstract:: Transacting siRNA (tasiRNA) biogenesis in Arabidopsis is initiated by microRNA (miRNA) –guided cleavage of primary transcripts. In the case of TAS3 tasiRNA formation, ARGONAUTE7 (AGO7)– miR390 complexes interact with primary transcripts at two sites, resulting in recruitment of RNA-DEPENDENT RNA POLYMERASE6 for dsRNA biosynthesis. An extensive screen for Arabidopsis mutants...
Resource Type:: Article
Full Text:: by grants from the National Science Foundation (MCB-0618433), National Institutes of Health (AI43288

Maximum height in a conifer is associated with conflicting requirements for xylem design

Creator:: Domec, Jean-Christophe, Lachenbruch, Barbara, Meinzer, Frederick C., Woodruff, David R., Warren, Jeffrey M., and McCulloh, Katherine A.
Abstract:: Despite renewed interest in the nature of limitations on maximum tree height, the mechanisms governing ultimate and species-specific height limits are not yet understood, but likely involve water transport dynamics. Tall trees experience increased risk of xylem embolism from air-seeding because tension in their water column increases with height due...
Resource Type:: Article
Full Text:: University, Raleigh , NC 27795, USA. ‡Department of Wood Science and Engineering, Oregon State University

High Pressure Effects on the Activities of Cathepsins B and D of Mackerel and Horse Mackerel Muscle

Creator:: Fidalgo, Liliana, Saraiva, Jorge A., Aubourg, Santiago P., Vázquez, Manuel, and Torres, Antonio
Abstract:: This work sought to determine high pressure processing (HPP) effects on the activity of cathepsins B and D in the muscle of mackerel (Scomber scombrus) and horse mackerel (Trachurus trachurus). In mackerel, the cathepsin B activity decrease reached 40% at 450 MPa while in horse mackerel, low and intermediate pressures...
Resource Type:: Article
Full Text:: horse mackerel muscle. Czech Journal of Food Sciences, 32(2), 188-193. Czech Academy of Agricultural

Benthic-Pelagic Links and Rocky Intertidal Communities: Bottom-Up Effects on Top-Down Control?

Creator:: Menge, Bruce A., Daley, Bryon A., Wheeler, Patricia A., Dahlhoff, Elizabeth, Sanford, Eric, and Strub, P. Ted
Abstract:: Insight into the dependence of benthic communities on biological and physical processes in nearshore pelagic environments, long considered a ``black box,'' has eluded ecologists. In rocky intertidal communities at Oregon coastal sites 80 km apart, differences in abundance of sessile invertebrates, herbivores, carnivores, and macrophytes in the low zone were...
Resource Type:: Article
Full Text:: this fact. © 1997 by The National Academy of Sciences 0027-8424y97y9414530-6$2.00y0 PNAS is available

Gases in ice cores

Creator:: Bender, Michael, Sowers, Todd, and Brook, Edward J.
Abstract:: Air trapped in glacial ice offers a means of reconstructing variations in the concentrations of atmospheric gases over time scales ranging from anthropogenic (last 200 yr) to glacial/interglacial (hundreds of thousands of years). In this paper, we review the glaciological processes by which air is trapped in the ice and...
Resource Type:: Article
Full Text:: ,’’ organized by Charles D. Keeling, held November 13–15, 1995, at the National Academy of Sciences, Irvine, CA

Delayed upwelling alters nearshore coastal ocean ecosystems in the northern California current

Creator:: Barth, John A., Menge, Bruce A., Lubchenco, Jane, Chan, Francis, Bane, John M., Kirincich, Anthony R., McManus, Margaret A., Nielsen, Karina J., Pierce, Stephen D., and Washburn, Libe
Abstract:: Wind-driven coastal ocean upwelling supplies nutrients to the euphotic zone near the coast. Nutrients fuel the growth of phytoplankton, the base of a very productive coastal marine ecosystem [Pauly D, Christensen V (1995) Nature 374:255–257]. Because nutrient supply and phytoplankton biomass in shelf waters are highly sensitive to variation in...
Resource Type:: Article
Full Text:: Geophys Union 83(Suppl):OS12K-03 (abstr.). © 2007 by The National Academy of Sciences of the USA

Neoliberal Policy, Rural Livelihoods and Urban Food Security in West Africa: A Comparative Study of The Gambia, Côte d’Ivoire and Mali

Creator:: Moseley, William G., Carney, Judith, and Becker, Laurence
Abstract:: This study examines the impact of two decades of neoliberal policy reform on food production and household livelihood security in three West African countries. The rice sectors in The Gambia, Côte d’Ivoire, and Mali are scrutinized as well as cotton and its relationship to sorghum production in Mali. Although market...
Resource Type:: Article
Full Text:: 1 SOCIAL SCIENCES: Sustainability Science

The Role of Outreach in Building ScholarsArchive@OSU

Creator:: Sapon-White, Richard
Abstract:: Keywords: outreach to faculty, institutional repositories, Scholars Archive@OSU, Oregon State University
Resource Type:: Working Paper
Full Text:: The Role of Outreach in Building ScholarsArchive

Some Thoughts on Authority Control in an International Digital Library

Creator:: Sapon-White, Richard
Resource Type:: Conference Proceeding
Full Text:: Library for Education, Science, and Culture: authority control. In the realm of library catalogs

Summary of Fifth Plenary Session, International Workshop on Implementing a Maghreb Digital Library for Education, Science & Culture

Creator:: Sapon-White, Richard
Abstract:: Trip report and summary of conference content of Fifth Plenary Session, International Workshop on Implementing a Maghreb Digital Library for Education, Science & Culture held Jan. 25-28, 2007.
Resource Type:: Other
Full Text:: Scientific, reported on the development and success of citation databases such as its Web of Science

Effects of insect and virus host plants on transmission of viruses by insects

Creator:: Swenson, K. G. (Knud George), 1923- and Oregon State University. Agricultural Experiment Station
Abstract:: Published November 1963. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: BY INSECTS K. G. Swenson Reprinted from ANNALS OF THE NEW YORK ACADEMY OF SCIENCES Volume 105

The Emergence of Spatial Cyberinfrastructure

Creator:: Wright, Dawn J. and Wang, Shaowen
Abstract:: Cyberinfrastructure integrates advanced computer, information, and communication technologies to empower computation-based and data-driven scientific practice and improve the synthesis and analysis of scientific data in a collaborative and shared fashion. As such, it now represents a paradigm shift in scientific research that has facilitated easy access to computational utilities and...
Resource Type:: Article
Full Text:: of the National Academy of Science Special Feature on Spatial Cyberinfrastructure Manuscript

Excited state structural dynamics of a dual-emission calmodulingreen fluorescent protein sensor for calcium ion imaging

Creator:: Oscar, Breland G., Liu, Weimin, Zhao, Yongxin, Tang, Longteng, Wang, Yanli, Campbell, Robert E., and Fang, Chong
Abstract:: Fluorescent proteins (FPs) have played a pivotal role in bioimaging and advancing biomedicine. The versatile fluorescence from engineered, genetically encodable FP variants greatly enhances cellular imaging capabilities, which are dictated by excited state structural dynamics of the embedded chromophore inside the protein pocket. Visualization of the molecular choreography of the...
Resource Type:: Article
Full Text:: + Indicators. Science 333(6051):1888-1891. 5. Yamada Y & Mikoshiba K (2012) Quantitative comparison of

EARLY BUD-BREAK 1 (EBB1) is a regulator of release from seasonal dormancy in poplar trees

Creator:: Yordanov, Yordan S., Ma, Cathleen, Strauss, Steven H., and Busov, Victor B.
Abstract:: Trees from temperate latitudes transition between growth and dormancy to survive dehydration and freezing stress during winter months. We employed activation tagging to isolate a dominant mutation affecting release from dormancy, and identified the corresponding gene EARLY BUD-BREAK 1 (EBB1). We demonstrate through positioning of the tag, expression analysis, and...
Resource Type:: Article

Projected land-use change impacts on ecosystem services in the U.S.

Creator:: Lawler, Joshua J., Lewis, David J., Nelson, Erik, Plantinga, Andrew J., Polasky, Stephen, Withey, John C., Helmers, David P., Martinuzzi, Sebastián, Pennington, Derric, and Radeloff, Volker C.
Abstract:: Providing food, timber, energy, housing, and other goods and services, while maintaining ecosystem functions and biodiversity that underpin their sustainable supply, is one of the great challenges of our time. Understanding the drivers of land-use change and how policies can alter land-use change will be critical to meeting this challenge....
Resource Type:: Article
Full Text:: Academy of Sciences, 111(20), 7492-7497. doi:10.1073/pnas.1405557111 10.1073/pnas.1405557111 National

Implementing the Optimal Provision of Ecosystem Services

Creator:: Polasky, Stephen, Lewis, David J., Plantinga, Andrew J., and Nelson, Erik
Abstract:: Many ecosystem services are public goods whose provision depends on the spatial pattern of land use. The pattern of land use is often determined by the decisions of multiple private landowners. Increasing the provision of ecosystem services, while beneficial for society as a whole, may be costly to private landowners....
Resource Type:: Article
Full Text:: Academy of Sciences of the United States of America, 111(17), 6248-6253. doi:10.1073/pnas.1404484111

Changing concentrations of CO, CH₄, C₅H₈, CH₃Br, CH₃I, and dimethyl sulfide during the Southern Ocean Iron Enrichment Experiments

Creator:: Wingenter, Oliver W., Haase, Karl B., Strutton, Peter, Friederich, Gernot, Meinardi, Simone, Blake, Donald R., and Rowland, F. Sherwood
Abstract:: Oceanic iron (Fe) fertilization experiments have advanced the understanding of how Fe regulates biological productivity and air–sea carbon dioxide (CO₂) exchange. However, little is known about the production and consumption of halocarbons and other gases as a result of Fe addition. Besides metabolizing inorganic carbon, marine microorganisms produce and consume...
Resource Type:: Article

Jet stream intraseasonal oscillations drive dominant ecosystem variations in Oregon’s summertime coastal upwelling system

Creator:: Bane, John M., Spitz, Yvette H., Letelier, Ricardo M., and Peterson, William T.
Abstract:: Summertime wind stress along the coast of the northwestern United States typically exhibits intraseasonal oscillations (ISOs) with periods from ≈15 to 40 days, as well as fluctuations on the 2- to 6-day “weather-band” and 1-day diurnal time scales. Coastal upwelling of cool, nutrient-rich water is driven by extended periods of...
Resource Type:: Article

Absolute humidity modulates influenza survival, transmission, and seasonality

Creator:: Shaman, Jeffrey and Kohn, Melvin
Abstract:: Influenza A incidence peaks during winter in temperate regions. The basis for this pronounced seasonality is not understood, nor is it well documented how influenza A transmission principally occurs. Previous studies indicate that relative humidity (RH) affects both influenza virus transmission (IVT) and influenza virus survival (IVS). Here, we reanalyze...
Resource Type:: Article
Full Text:: –5699. 27. IPCC (2007) Climate change 2007: The Physical Science Basis. Contribution of Working Group I

An approach to designing a national climate service

Creator:: Miles, E. L., Snover, A. K., Whitely Binder, L. C., Sarachik, E. S., Mote, P. W., and Mantua, N.
Abstract:: Climate variability and change are considerably important for a wide range of human activities and natural ecosystems. Climate science has made major advances during the last two decades, yet climate information is neither routinely useful for nor used in planning. What is needed is a mechanism, a national climate service...
Resource Type:: Article
Full Text:: Group, Center for Science in the Earth System, Joint Institute for the Study of the Atmosphere and Ocean

The effect of climate variation on agro-pastoral production in Africa

Creator:: Stige, Leif Christian, Stave, Jørn, Chan, Kung-Sik, Ciannelli, Lorenzo, Pettorelli, Nathalie, Glantz, Michael, Herren, Hans R., and Stenseth, Nils Chr.
Abstract:: Using national crop and livestock production records from 1961–2003 and satellite-derived data on pasture greenness from 1982–2003 we show that the productivity of crops, livestock, and pastures in Africa is predictably associated with the El Niño Southern Oscillation and the North Atlantic Oscillation. The causal relations of these results are...
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Full Text:: ; †Department of Statistics and Actuarial Science, University of Iowa, 263 Schaeffer Hall, Iowa City, IA 52242

Collagen Network and the Mechanical Microenvironment of Cancer Cells

Creator:: Sun, Bo
Abstract:: 中文摘要：本文以第一类胶原纤维网络为例，着重分析了癌细胞三维微环境的多尺度结构及力学特征。对应于细胞与细胞外介质结合的蛋白集团，单个细胞，以及细胞群体，分别由单个纤维（或亚纤维），纤维集束，以及纤维网络整体来决定相应的力学环境。我们同时也讨论了胶原纤维（及其类似材料）的局限性。
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Full Text:: invasion. Proceedings of the National Academy of Science, 110(5), pp. 1686-1691. Li, Y. & Yu, S., 2013

Developmental rate: A unifying mechanism for sympatric divergence in postglacial fishes?

Creator:: Mcphee, Megan V., Noakes, David L. G., and Allendorf, Fred W.
Abstract:: Morphologically divergent ecotypes arise in fish populations on postglacial time scales, and resource polymorphisms are often invoked to explain their origin. However, genetic recombination can constrain the ability of divergent selection to produce reproductive isolation in sympatry. Recombination breaks up favorable combinations of traits (”adaptive suites”) if individual traits are...
Resource Type:: Article
Full Text:: phosphoglucomutase gene in rainbow trout. Proceedings of the National Academy of Sciences 80: 1397–1400. Álvarez D

Familiarity with a female does not affect a male's courtship intensity in garter snakes Thamnophis sirtalis parietalis

Creator:: Shine, Richard, Webb, Jonathan K., Lane, Amanda, and Mason, Robert T.
Abstract:: In many animal species, males direct more intense courtship towards females they have not previously encountered, than towards females with which they have previously mated. To test the factors responsible for this "Coolidge Effect", we need studies on a wide range of taxa – including those with mating systems in...
Resource Type:: Article
Full Text:: Vol. 58 No. 6 provided by the Australian Research Council and the Austra- lian Academy of Science

Patterns of color phase indicate spawn timing at a Nassau grouper Epinephelus striatus spawning aggregation

Creator:: Archer, Stephanie K., Heppell, Scott A., Semmens, Brice X., Pattengill-Semmens, Christy V., Bush, Phillippe G., Mccoy, Croy M., and Johnson, Bradley C.
Abstract:: Nassau grouper Epinephelus striatus are a large bodied, top level predator that is ecologically important throughout the Caribbean. Although typically solitary, Nassau grouper form large annual spawning aggregations at predictable times in specific locations. In 2003, The Cayman Islands Marine Conservation Board established protection for a newly rediscovered Nassau grouper...
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Full Text:: reef fish spawning aggre- gations: Defined and reviewed. Bulletin of Marine Science 60: 698−726

Predicting global atmospheric ice nuclei distributions and their impacts on climate

Creator:: DeMott, P. J., Prenni, A. J., Liu, X., Kreidenweis, S. M., Petters, M. D., Twohy, Cynthia, Richardson, M. S., Eidhammer, T., and Rogers, D. C.
Abstract:: Knowledge of cloud and precipitation formation processes remains incomplete, yet global precipitation is predominantly produced by clouds containing the ice phase. Ice first forms in clouds warmer than −36 °C on particles termed ice nuclei. We combine observations from field studies over a 14-year period, from a variety of locations...
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Full Text:: down to −35 °C. An addi- tional advantage to this approach is that the state of the science for

Vailulu’u Seamount, Samoa: Life and death on an active submarine volcano

Creator:: Staudigel, Hubert, Hart, Stanley R., Pile, Adele, Bailey, Bradley E., Baker, Edward T., Brooke, Sandra, Connelly, Douglas P., Haucke, Lisa, German, Christopher R., Hudson, Ian, Daniel Jones, Koppers, Anthony A. P., Konter, Jasper, Lee, Ray, Pietsch, Theodore W., Tebo, Bradley M., Templeton, Alexis S., Zierenberg, Robert, and Young, Craig M.
Abstract:: Submersible exploration of the Samoan hotspot revealed a new, 300-m-tall, volcanic cone, named Nafanua, in the summit crater of Vailulu’u seamount. Nafanua grew from the 1,000-m-deep crater floor in <4 years and could reach the sea surface within decades. Vents fill Vailulu’u crater with a thick suspension of particulates and...
Resource Type:: Article
Full Text:: Washington, Box 355100, Seattle, WA 98195; jDepartment of Environmental and Biomolecular Science, OGI School

New insights into bacterial acquisition of phosphorus in the surface ocean

Creator:: White, Angelicque E.
Abstract:: Since 1958 when Alfred C. Redfield (1) recognized the similarity between the ratios of elements in living biomass and those dissolved in the surrounding seawater, we have understood that microorganisms largely control the concentrations, distribution, and molecular makeup of nutritional resources in the ocean. The primary elemental ingredients for life,...
Resource Type:: Article
Full Text:: New insights into bacterial acquisition of phosphorus in the

Geochemical proxies of North American freshwater routing during the Younger Dryas cold event

Creator:: Carlson, Anders E., Clark, Peter U., Haley, Brian A., Klinkhammer, Gary P., Simmons, Kathleen, Brook, Edward J., and Meissner, Katrin J.
Abstract:: The Younger Dryas cold interval represents a time when much of the Northern Hemisphere cooled from ≈12.9 to 11.5 kiloyears B.P. The cause of this event, which has long been viewed as the canonical example of abrupt climate change, was initially attributed to the routing of freshwater to the St....
Resource Type:: Article
Full Text:: / 0611313104/DC1. © 2007 by The National Academy of Sciences of the USA 6556–6561 � PNAS � April 17, 2007

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