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  • Climate
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  • 1
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    Sedimentary evidence of hurricane strikes in western Long Island, New York (2007)
    American Geophysical Union
    Details
    Publikationsdatum: 2022-05-25
    Beschreibung: Author Posting. © American Geophysical Union, 2007. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geochemistry Geophysics Geosystems 8 (2007): Q06011, doi:10.1029/2006GC001463.
    Beschreibung: Evidence of historical landfalling hurricanes and prehistoric storms has been recovered from backbarrier environments in the New York City area. Overwash deposits correlate with landfalls of the most intense documented hurricanes in the area, including the hurricanes of 1893, 1821, 1788, and 1693 A.D. There is little evidence of intense hurricane landfalls in the region for several hundred years prior to the late 17th century A.D. The apparent increase in intense hurricane landfalls around 300 years ago occurs during the latter half of the Little Ice Age, a time of lower tropical sea surface temperatures. Multiple washovers laid down between ~2200 and 900 cal yr B.P. suggest an interval of frequent intense hurricane landfalls in the region. Our results provide preliminary evidence that fluctuations in intense hurricane landfall in the northeastern United States were roughly synchronous with hurricane landfall fluctuations observed for the Caribbean and Gulf Coast, suggesting North Atlantic–wide changes in hurricane activity.
    Beschreibung: Grants from the National Science Foundation (EAR 0519118), Risk Prediction Initiative at the Bermuda Biological Station for Research, and the Coastal Ocean Institute of Woods Hole Oceanographic Institution supported this research.
    Schlagwort(e): Hurricane ; Climate ; Coastal geology ; Salt marsh ; Sedimentation ; New York
    Repository-Name: Woods Hole Open Access Server
    Materialart: Article
    Format: application/pdf
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  • 2
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    Report of the Regional Co-ordinator for the El Niño Region (2007)
    Details
    Publikationsdatum: 2021-05-19
    Beschreibung: Supported by IOC/IODE
    Beschreibung: Sixteenth Session
    Schlagwort(e): Oceanography ; Climate
    Repository-Name: AquaDocs
    Materialart: Non-Refereed , Paper
    Format: 39424 bytes
    Format: application/msword
    Format: 2
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  • 3
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    Updated Cariaco Basin C-14 calibration dataset from 0-60 cal kyr BP (2020)
    Cambridge University Press
    Details
    Publikationsdatum: 2022-10-26
    Beschreibung: © The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Hughen, K. A., & Heaton, T. J. Updated Cariaco Basin C-14 calibration dataset from 0-60 cal kyr BP. Radiocarbon, 62(4), (2020): 1001-1043, doi:10.1017/RDC.2020.53.
    Beschreibung: We present new updates to the calendar and radiocarbon (14C) chronologies for the Cariaco Basin, Venezuela. Calendar ages were generated by tuning abrupt climate shifts in Cariaco Basin sediments to those in speleothems from Hulu Cave. After the original Cariaco-Hulu calendar age model was published, Hulu Cave δ18O records have been augmented with increased temporal resolution and a greater number of U/Th dates. These updated Hulu Cave records provide increased accuracy as well as precision in the final Cariaco calendar age model. The depth scale for the Ocean Drilling Program Site 1002D sediment core, the primary source of samples for 14C dating, has been corrected to account for missing sediment from a core break, eliminating age-depth anomalies that afflicted the earlier calendar age models. Individual 14C dates for the Cariaco Basin remain unchanged from previous papers, although detailed comparisons of the Cariaco calibration dataset to those from Hulu Cave and Lake Suigetsu suggest that the Cariaco marine reservoir age may have shifted systematically during the past. We describe these recent changes to the Cariaco datasets and provide the data in a comprehensive format that will facilitate use by the community.
    Beschreibung: K.A. Hughen was supported by funds from U.S. NSF grant #OCE-1657191, and by the Investment in Science Fund at WHOI. T.J. Heaton is supported by a Leverhulme Trust Fellowship RF-2019-140\9, “Improving the Measurement of Time Using Radiocarbon”.
    Schlagwort(e): Calibration ; Climate ; Radiocarbon
    Repository-Name: Woods Hole Open Access Server
    Materialart: Article
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  • 4
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    A preindustrial sea-level rise hotspot along the Atlantic Coast of North America (2020)
    American Geophysical Union
    Details
    Publikationsdatum: 2022-10-26
    Beschreibung: © The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Gehrels, W. R., Dangendorf, S., Barlow, N. L. M., Saher, M. H., Long, A. J., Woodworth, P. L., Piecuch, C. G., & Berk, K. A preindustrial sea-level rise hotspot along the Atlantic Coast of North America. Geophysical Research Letters, 47(4), (2020): e2019GL085814, doi:10.1029/2019GL085814.
    Beschreibung: The Atlantic coast of North America north of Cape Hatteras has been proposed as a “hotspot” of late 20th century sea‐level rise. Here we test, using salt‐marsh proxy sea‐level records, if this coast experienced enhanced sea‐level rise over earlier multidecadal‐centennial periods. While we find in agreement with previous studies that 20th century rates of sea‐level change were higher compared to rates during preceding centuries, rates of 18th century sea‐level rise were only slightly lower, suggesting that the “hotspot” is a reoccurring feature for at least three centuries. Proxy sea‐level records from North America (Iceland) are negatively (positively) correlated with centennial changes in the North Atlantic Oscillation. They are consistent with sea‐level “fingerprints” of Arctic ice melt, and we therefore hypothesize that sea‐level fluctuations are related to changes in Arctic land‐ice mass. Predictions of future sea‐level rise should take into account these long‐term fluctuating rates of natural sea‐level change.
    Beschreibung: This work is funded by the Natural Environment Research Council (grant NE/G003440/1). All radiocarbon dating was supported by the Natural Environment Research Council Radiocarbon Facility (allocations 1490.0810, 1566.0511, 1604.0112). Mark Wood assisted with fieldwork. Rob Scaife analyzed pollen data for core SN‐3.3. Sönke Dangendorf and Kevin Berk acknowledge the University of Siegen for their support within the PEPSEA project. Christopher Piecuch was supported by National Science Foundation awards OCE‐1558966 and OCE‐1834739. We thank project members Miguel Ángel Morales Maqueda, Chris Hughes, Vassil Roussenov and Ric Williams for valuable discussions. We are grateful to the International Space Science Institute (ISSI; Bern, Switzerland) for support of the International Team “Towards a unified Sea Level Record”. Data used in this paper are freely available online (https://www.doi.org/10/dgvq).
    Schlagwort(e): Sea level ; Late Holocene ; Common Era ; Climate ; Ocean
    Repository-Name: Woods Hole Open Access Server
    Materialart: Article
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  • 5
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    Trends in physical properties at the southern New England shelf break (2020)
    American Geophysical Union
    Details
    Publikationsdatum: 2022-10-26
    Beschreibung: Author Posting. © American Geophysical Union, 2020. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Oceans 125(2), (2020): e2019JC015784, doi:10.1029/2019JC015784.
    Beschreibung: We analyze 11 years (2003–2013) of repeat temperature and salinity sections from across the New England shelf break south of Cape Cod during early summer (June–July). The mean sections resolved the shelf break front which supports the Shelf Break Jet, a vital component of the regional circulation. Individual sections showed a great deal of variability associated with meanders in the shelf break front consistent with previous studies in the region. Over the 11 year record, the shelf region (inshore of the 100 m isobath) warmed by 0.26 °C yr -1, with the majority of this warming occurring shallower than 20 m (0.58 °C yr -1). The full‐depth trend agrees well with previous studies of shelf warming to the north and the south of our study region. The temperature and salinity of the offshore edge of the Cold Pool Water on the shelf did not change significantly during this period. The surface warming on the shelf resulted in a decrease in near‐surface density of 0.12 kg m -3 yr -1 and an increase in stratification between 10 and 15 m of 6.7 X 10(-5) S -2 yr -1 . Offshore of the shelf break, the Slope Water also warmed and became more saline by 0.21 °C yr -1 and 0.04 yr -1 respectively, resulting in a maximal reduction in density of 0.01 kg m -3 yr -1. In the Shelf Break Front, there is some evidence of freshening and a reduction in density, which may have resulted from an offshore shift in the Cold Pool but the statistical significance is small.
    Beschreibung: We wish to thank the Sea Education Association and the Woods Hole Oceanographic Institution for maintaining this collaboration. We also extend our warmest thanks to the numerous chief scientists, crew members, and student participants who collected the data and made this work possible. This work was supported by NSF Grants OCE‐1657853 and OCE‐1851261. G. G. was also supported by a Senior Scientist Chair from the Woods Hole Oceanographic Institution. The Jake Peirson Summer Cruises were supported using funds provided by a WHOI‐MIT Joint Program alumnus and by the WHOI Academic Programs Office. M. I. was supported by The Woods Hole Partnership Education Program, the Sea Education Association, and the Woods Hole Oceanographic Institution for her summer research work. We thank Jacob Forsyth for discussions on the seasonal variability of warming over the New Jersey shelf and warming rates for different time frames. Data used in this paper are available from the WHOI‐MBL Library (https://darchive.mblwhoilibrary.org/handle/1912/25158, doi:10.26025/dz4w‐kk13).
    Schlagwort(e): Temperature and salinity trends ; Stratification ; New England ; Shelf Break Jet ; Climate
    Repository-Name: Woods Hole Open Access Server
    Materialart: Article
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  • 6
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    Plant science. Seeking agriculture's ancient roots (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-06-30
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Balter, Michael -- New York, N.Y. -- Science. 2007 Jun 29;316(5833):1830-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17600193" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Agriculture/*history ; *Archaeology ; Climate ; Crops, Agricultural/genetics/*history ; History, Ancient ; Humans ; Plants/genetics ; Selection, Genetic ; Time
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 7
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    Global-scale similarities in nitrogen release patterns during long-term decomposition (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-01-20
    Beschreibung: Litter decomposition provides the primary source of mineral nitrogen (N) for biological activity in most terrestrial ecosystems. A 10-year decomposition experiment in 21 sites from seven biomes found that net N release from leaf litter is dominantly driven by the initial tissue N concentration and mass remaining regardless of climate, edaphic conditions, or biota. Arid grasslands exposed to high ultraviolet radiation were an exception, where net N release was insensitive to initial N. Roots released N linearly with decomposition and exhibited little net N immobilization. We suggest that fundamental constraints on decomposer physiologies lead to predictable global-scale patterns in net N release during decomposition.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parton, William -- Silver, Whendee L -- Burke, Ingrid C -- Grassens, Leo -- Harmon, Mark E -- Currie, William S -- King, Jennifer Y -- Adair, E Carol -- Brandt, Leslie A -- Hart, Stephen C -- Fasth, Becky -- New York, N.Y. -- Science. 2007 Jan 19;315(5810):361-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Natural Resource Ecology Laboratory, Colorado State University, 200 West Lake, Campus Mail 1499, Fort Collins, CO 80523-1499, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17234944" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Biodegradation, Environmental ; Carbon/metabolism ; Climate ; *Ecosystem ; Humidity ; Mathematics ; Nitrogen/*metabolism ; Plant Leaves/metabolism ; Plant Roots/metabolism ; Plants/*metabolism ; Poaceae ; Regression Analysis ; Seasons ; Soil Microbiology ; Temperature ; Time Factors ; Trees
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 8
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    Ancient biomolecules from deep ice cores reveal a forested southern Greenland (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-07-07
    Beschreibung: It is difficult to obtain fossil data from the 10% of Earth's terrestrial surface that is covered by thick glaciers and ice sheets, and hence, knowledge of the paleoenvironments of these regions has remained limited. We show that DNA and amino acids from buried organisms can be recovered from the basal sections of deep ice cores, enabling reconstructions of past flora and fauna. We show that high-altitude southern Greenland, currently lying below more than 2 kilometers of ice, was inhabited by a diverse array of conifer trees and insects within the past million years. The results provide direct evidence in support of a forested southern Greenland and suggest that many deep ice cores may contain genetic records of paleoenvironments in their basal sections.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2694912/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2694912/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Willerslev, Eske -- Cappellini, Enrico -- Boomsma, Wouter -- Nielsen, Rasmus -- Hebsgaard, Martin B -- Brand, Tina B -- Hofreiter, Michael -- Bunce, Michael -- Poinar, Hendrik N -- Dahl-Jensen, Dorthe -- Johnsen, Sigfus -- Steffensen, Jorgen Peder -- Bennike, Ole -- Schwenninger, Jean-Luc -- Nathan, Roger -- Armitage, Simon -- de Hoog, Cees-Jan -- Alfimov, Vasily -- Christl, Marcus -- Beer, Juerg -- Muscheler, Raimund -- Barker, Joel -- Sharp, Martin -- Penkman, Kirsty E H -- Haile, James -- Taberlet, Pierre -- Gilbert, M Thomas P -- Casoli, Antonella -- Campani, Elisa -- Collins, Matthew J -- 076905/Wellcome Trust/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2007 Jul 6;317(5834):111-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Ancient Genetics, University of Copenhagen, Denmark. ewillerslev@bi.ku.dk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17615355" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acids/*analysis/history/isolation & purification ; Animals ; Bayes Theorem ; Climate ; DNA/*analysis/history/isolation & purification ; *Ecosystem ; Fossils ; Geography ; Greenland ; History, Ancient ; Ice Cover/*chemistry ; *Invertebrates/classification/genetics ; *Plants/classification/genetics ; Polymerase Chain Reaction ; Time ; *Trees
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 9
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    A sustainable future, if we pay up front (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-02-10
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clery, Daniel -- New York, N.Y. -- Science. 2007 Feb 9;315(5813):782-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17289970" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Climate ; *Conservation of Energy Resources ; *Energy-Generating Resources ; Europe ; Fossil Fuels ; *Research ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 10
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    Evolution and development of inflorescence architectures (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-05-26
    Beschreibung: To understand the constraints on biological diversity, we analyzed how selection and development interact to control the evolution of inflorescences, the branching structures that bear flowers. We show that a single developmental model accounts for the restricted range of inflorescence types observed in nature and that this model is supported by molecular genetic studies. The model predicts associations between inflorescence architecture, climate, and life history, which we validated empirically. Paths, or evolutionary wormholes, link different architectures in a multidimensional fitness space, but the rate of evolution along these paths is constrained by genetic and environmental factors, which explains why some evolutionary transitions are rare between closely related plant taxa.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Prusinkiewicz, Przemyslaw -- Erasmus, Yvette -- Lane, Brendan -- Harder, Lawrence D -- Coen, Enrico -- New York, N.Y. -- Science. 2007 Jun 8;316(5830):1452-6. Epub 2007 May 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Computer Science, University of Calgary, 2500 University Drive N.W. Calgary, Alberta T2N 1N4, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17525303" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Arabidopsis/*anatomy & histology/genetics/*growth & development ; Arabidopsis Proteins/genetics/physiology ; *Biological Evolution ; Climate ; Computer Simulation ; Flowers/*anatomy & histology/genetics/*growth & development ; Gene Expression ; Genes, Plant ; Mathematics ; Meristem/growth & development ; *Models, Biological ; Selection, Genetic ; Transcription Factors/genetics/physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 11
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    Entomology. The case of the empty hives (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-05-19
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stokstad, Erik -- New York, N.Y. -- Science. 2007 May 18;316(5827):970-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17510336" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Agriculture ; Animal Nutritional Physiological Phenomena ; Animals ; Bacteria/isolation & purification ; *Bees/microbiology/parasitology/physiology ; Climate ; Diet ; Fungi/isolation & purification ; Mites ; Pesticides ; Population Dynamics ; United States ; United States Department of Agriculture ; Viruses/isolation & purification
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 12
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    Climate change. Global warming is changing the world (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-04-14
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerr, Richard A -- New York, N.Y. -- Science. 2007 Apr 13;316(5822):188-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17431148" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Climate ; Disasters ; *Greenhouse Effect ; Humans ; United Nations
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 13
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    Comment on "Carbon-negative biofuels from low-input high-diversity grassland biomass" (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-06-16
    Beschreibung: Tilman et al. (Reports, 8 December 2006, p. 1598) argued that low-input high-diversity grasslands can provide a substantial proportion of global energy needs. We contend that their conclusions are not substantiated by their experimental protocol. The authors understated the management inputs required to establish prairies, extrapolated globally from site-specific results, and presented potentially misleading energy accounting.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Russelle, Michael P -- Morey, R Vance -- Baker, John M -- Porter, Paul M -- Jung, Hans-Joachim G -- New York, N.Y. -- Science. 2007 Jun 15;316(5831):1567; author reply 1567.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉U.S. Department of Agriculture, Agricultural Research Service, St. Paul, MN 55108, USA. michael.russelle@ars.usda.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17569846" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Agriculture ; *Biomass ; *Carbon/analysis ; Climate ; Ecosystem ; *Energy-Generating Resources ; Fabaceae/growth & development/metabolism ; Plant Development ; *Plants/metabolism ; *Poaceae/growth & development/metabolism ; Soil
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 14
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    A molecular basis for natural selection at the timeless locus in Drosophila melanogaster (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-06-30
    Beschreibung: Diapause is a protective response to unfavorable environments that results in a suspension of insect development and is most often associated with the onset of winter. The ls-tim mutation in the Drosophila melanogaster clock gene timeless has spread in Europe over the past 10,000 years, possibly because it enhances diapause. We show that the mutant allele attenuates the photosensitivity of the circadian clock and causes decreased dimerization of the mutant TIMELESS protein isoform to CRYPTOCHROME, the circadian photoreceptor. This interaction results in a more stable TIMELESS product. These findings reveal a molecular link between diapause and circadian photoreception.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sandrelli, Federica -- Tauber, Eran -- Pegoraro, Mirko -- Mazzotta, Gabriella -- Cisotto, Paola -- Landskron, Johannes -- Stanewsky, Ralf -- Piccin, Alberto -- Rosato, Ezio -- Zordan, Mauro -- Costa, Rodolfo -- Kyriacou, Charalambos P -- New York, N.Y. -- Science. 2007 Jun 29;316(5833):1898-900.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Padova, 35131 Padova, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17600216" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alleles ; Animals ; *Circadian Rhythm/genetics ; Climate ; Cryptochromes ; Dimerization ; Drosophila Proteins/chemistry/*genetics/*metabolism ; Drosophila melanogaster/*genetics/metabolism/*physiology ; Europe ; Female ; Flavoproteins/*metabolism ; Light ; Motor Activity ; Mutation ; *Photoperiod ; Protein Isoforms/chemistry/genetics/metabolism ; Seasons ; *Selection, Genetic ; Temperature ; Transgenes ; Two-Hybrid System Techniques
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 15
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    The role of wheat awns in the seed dispersal unit (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-05-15
    Beschreibung: The dispersal unit of wild wheat bears two pronounced awns that balance the unit as it falls. We discovered that the awns are also able to propel the seeds on and into the ground. The arrangement of cellulose fibrils causes bending of the awns with changes in humidity. Silicified hairs that cover the awns allow propulsion of the unit only in the direction of the seeds. This suggests that the dead tissue is analogous to a motor. Fueled by the daily humidity cycle, the awns induce the motility required for seed dispersal.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Elbaum, Rivka -- Zaltzman, Liron -- Burgert, Ingo -- Fratzl, Peter -- New York, N.Y. -- Science. 2007 May 11;316(5826):884-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biomaterials Department, Max Planck Institute of Colloids and Interfaces, Golm, Germany. elbaum@mpikg.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17495170" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Cellulose/analysis ; Climate ; Humidity ; Lignin/analysis/chemistry/*ultrastructure ; Microscopy, Acoustic ; Microscopy, Electron, Scanning ; Plant Epidermis/physiology/ultrastructure ; Seeds/chemistry/*physiology/*ultrastructure ; Silicon Dioxide/analysis ; Soil ; Stress, Mechanical ; Triticum/*physiology/ultrastructure
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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    Comment on "Why are there so many species of herbivorous insects in tropical rainforests?" (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-03-24
    Beschreibung: Novotny et al. (Reports, 25 August 2006, p. 1115) argued that higher herbivore diversity in tropical forests results from greater phylogenetic diversity of host plants, not from higher host specificity. However, if host specificity is related to host abundance, differences in relative host abundance between tropical and temperate regions may limit any general conclusion that herbivore diversity scales directly with host-plant diversity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norton, David A -- Didham, Raphael K -- New York, N.Y. -- Science. 2007 Mar 23;315(5819):1666; author reply 1666.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Forestry, University of Canterbury, Private Bag 4800, Christchurch, New Zealand.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17379792" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Biodiversity ; Climate ; *Insects ; Phylogeny ; Population Density ; *Trees ; *Tropical Climate
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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    Nuclear war. Consequences of regional-scale nuclear conflicts (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-03-03
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Toon, Owen B -- Robock, Alan -- Turco, Richard P -- Bardeen, Charles -- Oman, Luke -- Stenchikov, Georgiy L -- New York, N.Y. -- Science. 2007 Mar 2;315(5816):1224-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Atmospheric and Oceanic Sciences, Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO 80309, USA. toon@lasp.colorado.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17332396" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Agriculture ; Atmosphere ; Climate ; Humans ; International Cooperation ; Mortality ; *Nuclear Warfare/prevention & control/statistics & numerical data ; Smoke
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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    Zoology. African penguin populations reported in a puzzling decline (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-03-03
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koenig, Robert -- New York, N.Y. -- Science. 2007 Mar 2;315(5816):1205.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17332382" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Climate ; Conservation of Natural Resources ; Ecosystem ; Feeding Behavior ; Fishes ; Population Density ; Population Dynamics ; South Africa ; *Spheniscidae
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 19
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    Archaeology. The vanishing Fremont (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-12-08
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kloor, Keith -- New York, N.Y. -- Science. 2007 Dec 7;318(5856):1540-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18063765" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Agriculture ; *Archaeology ; Climate ; Colorado ; Culture ; Disasters ; History, Ancient ; Humans ; Indians, North American/*history ; Social Conditions ; Utah
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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    The risks and advantages of framing science (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-09-05
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gerst, Robert -- New York, N.Y. -- Science. 2007 Aug 31;317(5842):1168-70; author reply 1168-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17768792" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Biological Evolution ; Climate ; *Communication ; Greenhouse Effect ; Humans ; Politics ; *Public Opinion ; *Science
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 21
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    Breakthrough of the year (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-12-22
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kennedy, Donald -- New York, N.Y. -- Science. 2007 Dec 21;318(5858):1833.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18096769" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Cellular Reprogramming ; Climate ; *Genetic Variation ; *Genome, Human ; Genomics ; Humans ; Pluripotent Stem Cells ; Public Health
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 22
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    Mixed grill (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-09-01
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kennedy, Donald -- New York, N.Y. -- Science. 2007 Aug 31;317(5842):1145.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17761852" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animal Rights ; Climate ; Crops, Agricultural ; Energy-Generating Resources ; Public Policy ; *Science ; Scientific Misconduct ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 23
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    Mesoscale iron enrichment experiments 1993-2005: synthesis and future directions (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-02-03
    Beschreibung: Since the mid-1980s, our understanding of nutrient limitation of oceanic primary production has radically changed. Mesoscale iron addition experiments (FeAXs) have unequivocally shown that iron supply limits production in one-third of the world ocean, where surface macronutrient concentrations are perennially high. The findings of these 12 FeAXs also reveal that iron supply exerts controls on the dynamics of plankton blooms, which in turn affect the biogeochemical cycles of carbon, nitrogen, silicon, and sulfur and ultimately influence the Earth climate system. However, extrapolation of the key results of FeAXs to regional and seasonal scales in some cases is limited because of differing modes of iron supply in FeAXs and in the modern and paleo-oceans. New research directions include quantification of the coupling of oceanic iron and carbon biogeochemistry.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boyd, P W -- Jickells, T -- Law, C S -- Blain, S -- Boyle, E A -- Buesseler, K O -- Coale, K H -- Cullen, J J -- de Baar, H J W -- Follows, M -- Harvey, M -- Lancelot, C -- Levasseur, M -- Owens, N P J -- Pollard, R -- Rivkin, R B -- Sarmiento, J -- Schoemann, V -- Smetacek, V -- Takeda, S -- Tsuda, A -- Turner, S -- Watson, A J -- New York, N.Y. -- Science. 2007 Feb 2;315(5812):612-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Institute for Water and Atmospheric Research (NIWA) Centre for Chemical and Physical Oceanography, Department of Chemistry, University of Otago, Dunedin, New Zealand. pboyd@alkali.otago.ac.nz〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17272712" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Atmosphere ; Carbon/analysis/metabolism ; Carbon Dioxide ; Chlorophyll/analysis ; Climate ; Diatoms/growth & development ; *Ecosystem ; *Iron/analysis ; Oceans and Seas ; Phytoplankton/*growth & development/metabolism ; *Seawater ; Zooplankton/*growth & development
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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    Profile: Eske Willerslev. Ancient DNA's intrepid explorer (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-07-07
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Curry, Andrew -- New York, N.Y. -- Science. 2007 Jul 6;317(5834):36-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17615317" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Climate ; DNA/*analysis/history/isolation & purification ; Denmark ; Genetics/history ; Greenland ; History, 20th Century ; History, 21st Century ; History, Ancient ; Ice Cover/*chemistry ; Plants/genetics
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 25
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    The macroecological contribution to global change solutions (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-06-16
    Beschreibung: Anthropogenic global changes threaten species and the ecosystem services upon which society depends. Effective solutions to this multifaceted crisis need scientific responses spanning disciplines and spatial scales. Macroecology develops broad-scale predictions of species' distributions and abundances, complementing the frequently local focus of global change biology. Macroecological discoveries rely particularly on correlative methods but have still proven effective in predicting global change impacts on species. However, global changes create pseudo-experimental opportunities to build stronger, mechanistic theories in macroecology that successfully predict multiple phenomena across spatial scales. Such macroecological perspectives will help address the biotic consequences of global change.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerr, Jeremy T -- Kharouba, Heather M -- Currie, David J -- New York, N.Y. -- Science. 2007 Jun 15;316(5831):1581-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Canadian Facility for Ecoinformatics Research (CFER), University of Ottawa, Ottawa, ON K1N 6N5 Canada. jkerr@uottawa.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17569854" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Biodiversity ; Climate ; Ecology/*methods ; *Ecosystem ; Forecasting ; Geography ; Human Activities ; Humans ; Models, Biological ; Plants ; Population Dynamics ; Statistics as Topic
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 26
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    Sustainability. USGS goals for the coming decade (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-10-13
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Myers, M D -- Ayers, M A -- Baron, J S -- Beauchemin, P R -- Gallagher, K T -- Goldhaber, M B -- Hutchinson, D R -- Labaugh, J W -- Sayre, R G -- Schwarzbach, S E -- Schweig, E S -- Thormodsgard, J -- van Riper, C 3rd -- Wilde, W -- New York, N.Y. -- Science. 2007 Oct 12;318(5848):200-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉U.S. Geological Survey, USGS National Center, Reston, VA, 20192, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17932272" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Animals, Wild ; Climate ; *Conservation of Natural Resources/trends ; Disasters ; *Ecosystem ; Energy-Generating Resources ; *Environment ; Forecasting ; Geological Phenomena ; Geology ; *Health ; Humans ; Interdisciplinary Communication ; Public Policy ; United States ; *United States Government Agencies ; Water
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 27
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    Evolution. Tantalizing timeless (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-06-30
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bradshaw, William -- Holzapfel, Christina -- New York, N.Y. -- Science. 2007 Jun 29;316(5833):1851-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, OR 97403, USA. mosquito@uoregon.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17600202" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alleles ; Animals ; Biological Evolution ; *Circadian Rhythm/genetics ; Climate ; Cryptochromes ; Drosophila Proteins/*genetics/physiology ; Drosophila melanogaster/genetics/*physiology ; Evolution, Molecular ; Flavoproteins/metabolism ; Gene Expression ; Geography ; Nuclear Proteins/*genetics/physiology ; Period Circadian Proteins ; *Photoperiod ; *Seasons ; Selection, Genetic
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 28
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    Breakthrough of the year. How'd we do? (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-12-22
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 2007 Dec 21;318(5858):1844-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18096773" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Climate ; Forecasting ; Genetic Predisposition to Disease ; Hominidae ; Humans ; Physical Phenomena ; Physics ; Primates/genetics ; *Science ; Spacecraft
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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    A sulfur dioxide climate feedback on early Mars (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-12-22
    Beschreibung: Ancient Mars had liquid water on its surface and a CO2-rich atmosphere. Despite the implication that massive carbonate deposits should have formed, these have not been detected. On the basis of fundamental chemical and physical principles, we propose that climatic conditions enabling the existence of liquid water were maintained by appreciable atmospheric concentrations of volcanically degassed SO2 and H2S. The geochemistry resulting from equilibration of this atmosphere with the hydrological cycle is shown to inhibit the formation of carbonates. We propose an early martian climate feedback involving SO2, much like that maintained by CO2 on Earth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Halevy, Itay -- Zuber, Maria T -- Schrag, Daniel P -- New York, N.Y. -- Science. 2007 Dec 21;318(5858):1903-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138, USA. ihalevy@fas.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18096802" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Atmosphere ; Carbon Dioxide/chemistry ; Carbonates/chemistry ; Chemical Precipitation ; Climate ; Extraterrestrial Environment ; Hydrogen Sulfide/chemistry ; *Mars ; Oxidation-Reduction ; Photolysis ; Sulfites/chemistry ; Sulfur Dioxide/*chemistry ; Temperature ; Water
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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    Paleontology. Mammoth-killer impact gets mixed reception from Earth scientists (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-06-02
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerr, Richard A -- New York, N.Y. -- Science. 2007 Jun 1;316(5829):1264-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17540865" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Climate ; Culture ; *Earth (Planet) ; Elephants ; Extinction, Biological ; Geologic Sediments/chemistry ; Humans ; Iridium/analysis ; Metals/analysis ; *Meteoroids ; *Paleontology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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    Strong relationship between DMS and the solar radiation dose over the global surface ocean (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2007-01-27
    Beschreibung: Marine biogenic dimethylsulfide (DMS) is the main natural source of tropospheric sulfur, which may play a key role in cloud formation and albedo over the remote ocean. Through a global data analysis, we found that DMS concentrations are highly positively correlated with the solar radiation dose in the upper mixed layer of the open ocean, irrespective of latitude, plankton biomass, or temperature. This is a necessary condition for the feasibility of a negative feedback in which light-attenuating DMS emissions are in turn driven by the light dose received by the pelagic ecosystem.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vallina, Sergio M -- Simo, Rafel -- New York, N.Y. -- Science. 2007 Jan 26;315(5811):506-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut de Ciencies del Mar (CSIC), Passeig Maritim de la Barceloneta 37-49, 08003 Barcelona, Catalonia, Spain. sergio.vallina@icm.csic.es〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17255509" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Atlantic Ocean ; Bermuda ; Biomass ; Climate ; *Ecosystem ; Geography ; Mediterranean Sea ; *Phytoplankton/metabolism ; Seasons ; *Seawater ; Sulfides/*analysis/metabolism ; *Sunlight ; Temperature ; Ultraviolet Rays
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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