Abstract

Next article FreeAbout the CoverPDFPDF PLUSFull Text Add to favoritesDownload CitationTrack CitationsPermissionsReprints Share onFacebookTwitterLinked InRedditEmailQR Code SectionsMoreCoverThe cover image is of the brittle star Astrotoma agassizii, an ophiuroid with a reported distribution from the Magellanic waters of South America and a circumpolar distribution in the Southern Ocean. Astrotoma agassizii is a free-living, epibenthic suspension feeder that can range in size from a few centimeters to over a meter.On pages 198–211, M. P. Galaska, C. J. Sands, S. R. Santos, A. R. Mahon and K. M. Halanych investigate the phylogeography of A. agassizii using a whole genome, single nucleotide polymorphism (SNP)-based approach to reveal population structure throughout its range. Recovery of admixture across the Antarctic Polar Front, a strong oceanographic barrier to dispersal, suggests recent or current contact between the South American and Southern Ocean populations, which is the first instance of a benthic invertebrate able to possess this level of connectivity.Credits: Photo, Christoph Held, Alfred-Wegener-Institut, Helmholtz Zentrum für Polar- und Meeresforschung, Bremerhaven, Germany.Cover design: Jeannie Harrell, University of Chicago Press. Next article DetailsFiguresReferencesCited by The Biological Bulletin Volume 232, Number 3June 2017 Published in association with the Marine Biological Laboratory Article DOIhttps://doi.org/10.1086/694838 © 2017 by The University of Chicago. All rights reserved.PDF download Crossref reports no articles citing this article.

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