The Global Circulation of Seasonal Influenza a (H3N2) Viruses

The Global Circulation of Seasonal Influenza a (H3N2) Viruses

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DOI: 10.1126/science.1154137 , 340 (2008); 320 Science et al. Colin A. Russell, (H3N2) Viruses The Global Circulation of Seasonal Influenza A www.sciencemag.org (this information is current as of September 4, 2009 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/320/5874/340 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/320/5874/340/DC1 can be found at: Supporting Online Material found at: can be related to this article A list of selected additional articles on the Science Web sites http://www.sciencemag.org/cgi/content/full/320/5874/340#related-content http://www.sciencemag.org/cgi/content/full/320/5874/340#otherarticles , 10 of which can be accessed for free: cites 35 articles This article 34 article(s) on the ISI Web of Science. cited by This article has been http://www.sciencemag.org/cgi/content/full/320/5874/340#otherarticles 12 articles hosted by HighWire Press; see: cited by This article has been http://www.sciencemag.org/cgi/collection/epidemiology Epidemiology : subject collections This article appears in the following http://www.sciencemag.org/about/permissions.dtl in whole or in part can be found at: this article permission to reproduce of this article or about obtaining reprints Information about obtaining registered trademark of AAAS. is a Science 2008 by the American Association for the Advancement of Science; all rights reserved. The title Copyright American Association for the Advancement of Science, 1200 New York Avenue NW, Washington, DC 20005. (print ISSN 0036-8075; online ISSN 1095-9203) is published weekly, except the last week in December, by the Science on September 4, 2009 www.sciencemag.org Downloaded from
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in net calcification rate and gross community production but had no noticeable effect on the ratio of calcification to photosynthesis. Other spe- cies need to be investigated in light of the var- iability encountered in response to changing P CO 2 between coccolithophore species that are repre- sentative of low and mid-latitudes ( 25 ). Future research is needed to fully constrain productivity changes over the Anthropocene pe- riod, extend our understanding of calcification changes at different latitudes and in different ocean basins, and quantify how changing ballast will affect export production. The widely held assumption that all coccolithophores will decrease their calcification under elevated P CO 2 needs reappraisal in the light of our laboratory and field observations that demonstrate enhanced PIC pro- duction and cell size under high P CO 2 conditions and the resilience of calcifying phytoplankton in the geological record ( 34 ). Our analyses are high- ly relevant to ocean biogeochemical modeling studies and underline the physiological and ecological versatility of coccolithophores and their evolutionary adaptation through changes in ocean carbonate chemistry associated with past and projected P CO 2 levels.
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