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  • *Ecosystem  (170)
  • 2010-2014  (170)
  • 1980-1984
  • 2010  (170)
  • 11
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    Oceans. Cryptic links in the ocean (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-12-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Teske, Andreas -- New York, N.Y. -- Science. 2010 Dec 3;330(6009):1326-7. doi: 10.1126/science.1198400.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Marine Sciences, University of North Carolina, Chapel Hill, NC 27599, USA. teske@email.unc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21127234" target="_blank"〉PubMed〈/a〉
    Keywords: Anaerobiosis ; Bacteria/classification/*metabolism ; Bacteria, Anaerobic/metabolism ; Biomass ; Chile ; *Ecosystem ; Gammaproteobacteria/classification/metabolism ; Geologic Sediments/*microbiology ; Microbial Interactions ; Nitrogen Cycle ; Oxidation-Reduction ; Oxygen/*analysis ; Pacific Ocean ; Seawater/chemistry/*microbiology ; Sulfur/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 12
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    Assisted colonization: move ahead with models (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-12-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stanley Price, Mark R -- New York, N.Y. -- Science. 2010 Dec 3;330(6009):1317. doi: 10.1126/science.330.6009.1317-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21127231" target="_blank"〉PubMed〈/a〉
    Keywords: Advisory Committees ; Animals ; *Climate Change ; *Ecosystem ; *Endangered Species ; Guidelines as Topic ; International Cooperation ; *Introduced Species ; Risk Assessment
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 13
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    Assisted colonization: protect managed forests (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-12-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fernandez-Manjarres, Juan F -- Tschanz, Louise -- New York, N.Y. -- Science. 2010 Dec 3;330(6009):1319. doi: 10.1126/science.330.6009.1319-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21127232" target="_blank"〉PubMed〈/a〉
    Keywords: *Climate Change ; *Conservation of Natural Resources ; *Ecosystem ; *Endangered Species ; *Introduced Species ; *Trees
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 14
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    A sustainable planet needs scientists to think ahead (2010)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2010-12-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seitzinger, Sybil -- England -- Nature. 2010 Dec 2;468(7324):601. doi: 10.1038/468601a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉International Geosphere-Biosphere Programme, Stockholm. Sybil.seitzinger@igbp.kva.se〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21124410" target="_blank"〉PubMed〈/a〉
    Keywords: Conservation of Natural Resources/economics/*trends ; Ecology/economics/manpower/trends ; *Ecosystem ; Environmental Policy/economics/*trends ; *Leadership ; *Research Personnel ; Socioeconomic Factors ; Time Factors ; United Nations/organization & administration
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 15
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    Permafrost and wetland carbon stocks (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-11-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davidson, Eric A -- New York, N.Y. -- Science. 2010 Nov 26;330(6008):1176-7; author reply 1177. doi: 10.1126/science.330.6008.1176-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21109650" target="_blank"〉PubMed〈/a〉
    Keywords: *Carbon Cycle ; *Climate Change ; *Ecosystem ; Freezing ; *Wetlands
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 16
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    The trophic fingerprint of marine fisheries (2010)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2010-11-19
    Description: Biodiversity indicators provide a vital window on the state of the planet, guiding policy development and management. The most widely adopted marine indicator is mean trophic level (MTL) from catches, intended to detect shifts from high-trophic-level predators to low-trophic-level invertebrates and plankton-feeders. This indicator underpins reported trends in human impacts, declining when predators collapse ("fishing down marine food webs") and when low-trophic-level fisheries expand ("fishing through marine food webs"). The assumption is that catch MTL measures changes in ecosystem MTL and biodiversity. Here we combine model predictions with global assessments of MTL from catches, trawl surveys and fisheries stock assessments and find that catch MTL does not reliably predict changes in marine ecosystems. Instead, catch MTL trends often diverge from ecosystem MTL trends obtained from surveys and assessments. In contrast to previous findings of rapid declines in catch MTL, we observe recent increases in catch, survey and assessment MTL. However, catches from most trophic levels are rising, which can intensify fishery collapses even when MTL trends are stable or increasing. To detect fishing impacts on marine biodiversity, we recommend greater efforts to measure true abundance trends for marine species, especially those most vulnerable to fishing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Branch, Trevor A -- Watson, Reg -- Fulton, Elizabeth A -- Jennings, Simon -- McGilliard, Carey R -- Pablico, Grace T -- Ricard, Daniel -- Tracey, Sean R -- England -- Nature. 2010 Nov 18;468(7322):431-5. doi: 10.1038/nature09528.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Aquatic and Fishery Sciences, Box 355020, University of Washington, Seattle, Washington 98195-5020, USA. tbranch@uw.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21085178" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aquatic Organisms/*isolation & purification/*metabolism ; Biodiversity ; Biomass ; Databases, Factual ; *Ecosystem ; Environmental Policy ; *Fisheries ; *Fishes/metabolism ; Food Chain ; Human Activities ; Invertebrates/metabolism ; Models, Biological ; Plankton/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 17
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    Fisheries: Measuring biodiversity in marine ecosystems (2010)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2010-11-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Powers, Joseph E -- England -- Nature. 2010 Nov 18;468(7322):385-6. doi: 10.1038/468385a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21085170" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aquatic Organisms/*isolation & purification ; *Biodiversity ; Databases, Factual ; *Ecosystem ; *Fisheries ; *Fishes ; Food Chain ; Models, Biological
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 18
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    Air pollution. Taking the sting out of acid rain (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-11-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malakoff, David -- New York, N.Y. -- Science. 2010 Nov 12;330(6006):910-1. doi: 10.1126/science.330.6006.910.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21071645" target="_blank"〉PubMed〈/a〉
    Keywords: Acid Rain/*legislation & jurisprudence ; Air Pollution/*legislation & jurisprudence ; Animals ; Biodiversity ; *Ecosystem ; Fishes ; *Fresh Water/chemistry/microbiology ; Hydrogen-Ion Concentration ; Sulfur ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 19
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    A cryptic sulfur cycle in oxygen-minimum-zone waters off the Chilean coast (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-11-13
    Description: Nitrogen cycling is normally thought to dominate the biogeochemistry and microbial ecology of oxygen-minimum zones in marine environments. Through a combination of molecular techniques and process rate measurements, we showed that both sulfate reduction and sulfide oxidation contribute to energy flux and elemental cycling in oxygen-free waters off the coast of northern Chile. These processes may have been overlooked because in nature, the sulfide produced by sulfate reduction immediately oxidizes back to sulfate. This cryptic sulfur cycle is linked to anammox and other nitrogen cycling processes, suggesting that it may influence biogeochemical cycling in the global ocean.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Canfield, Don E -- Stewart, Frank J -- Thamdrup, Bo -- De Brabandere, Loreto -- Dalsgaard, Tage -- Delong, Edward F -- Revsbech, Niels Peter -- Ulloa, Osvaldo -- New York, N.Y. -- Science. 2010 Dec 3;330(6009):1375-8. doi: 10.1126/science.1196889. Epub 2010 Nov 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Biology and Nordic Center for Earth Evolution, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark. dec@biology.sdu.dk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21071631" target="_blank"〉PubMed〈/a〉
    Keywords: Anaerobiosis ; Bacteria/classification/genetics/*metabolism ; Chile ; Deltaproteobacteria/classification/genetics/metabolism ; Denitrification ; *Ecosystem ; Gammaproteobacteria/classification/genetics/metabolism ; Genes, Bacterial ; Metagenome ; Nitrates/metabolism ; Nitrites/metabolism ; Nitrogen Cycle ; Oxidation-Reduction ; Oxygen/*analysis ; Pacific Ocean ; Quaternary Ammonium Compounds/metabolism ; Seawater/chemistry/*microbiology ; Sequence Analysis, DNA ; Sulfates/metabolism ; Sulfides/metabolism ; Sulfur/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 20
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    Effects of rapid global warming at the Paleocene-Eocene boundary on neotropical vegetation (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-11-13
    Description: Temperatures in tropical regions are estimated to have increased by 3 degrees to 5 degrees C, compared with Late Paleocene values, during the Paleocene-Eocene Thermal Maximum (PETM, 56.3 million years ago) event. We investigated the tropical forest response to this rapid warming by evaluating the palynological record of three stratigraphic sections in eastern Colombia and western Venezuela. We observed a rapid and distinct increase in plant diversity and origination rates, with a set of new taxa, mostly angiosperms, added to the existing stock of low-diversity Paleocene flora. There is no evidence for enhanced aridity in the northern Neotropics. The tropical rainforest was able to persist under elevated temperatures and high levels of atmospheric carbon dioxide, in contrast to speculations that tropical ecosystems were severely compromised by heat stress.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jaramillo, Carlos -- Ochoa, Diana -- Contreras, Lineth -- Pagani, Mark -- Carvajal-Ortiz, Humberto -- Pratt, Lisa M -- Krishnan, Srinath -- Cardona, Agustin -- Romero, Millerlandy -- Quiroz, Luis -- Rodriguez, Guillermo -- Rueda, Milton J -- de la Parra, Felipe -- Moron, Sara -- Green, Walton -- Bayona, German -- Montes, Camilo -- Quintero, Oscar -- Ramirez, Rafael -- Mora, German -- Schouten, Stefan -- Bermudez, Hermann -- Navarrete, Rosa -- Parra, Francisco -- Alvaran, Mauricio -- Osorno, Jose -- Crowley, James L -- Valencia, Victor -- Vervoort, Jeff -- New York, N.Y. -- Science. 2010 Nov 12;330(6006):957-61. doi: 10.1126/science.1193833.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Smithsonian Tropical Research Institute, Box 0843-03092, Balboa, Ancon, Republic of Panama. jaramilloc@si.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21071667" target="_blank"〉PubMed〈/a〉
    Keywords: Angiosperms ; Atmosphere ; Biodiversity ; Carbon Dioxide ; Colombia ; *Ecosystem ; Extinction, Biological ; *Global Warming ; *Plants ; Pollen ; Spores ; Temperature ; Time ; *Trees ; *Tropical Climate ; Venezuela
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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