DOI: 10.1126/science.1166981 , 776 (2009); 323 Science et al. Andrew A. Forbes, Levels Sequential Sympatric Speciation Across Trophic www.sciencemag.org (this information is current as of February 8, 2009 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/323/5915/776 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/323/5915/776/DC1 can be found at: Supporting Online Material http://www.sciencemag.org/cgi/content/full/323/5915/776#otherarticles , 4 of which can be accessed for free: cites 16 articles This article http://www.sciencemag.org/cgi/collection/evolution Evolution : 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 2009 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 February 8, 2009 www.sciencemag.org Downloaded from