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Thermally anomalous assemblages revisited: Patterns in the extraprovincial latitudinal range shifts of Pleistocene marine mollusks

1995; Geological Society of America; Volume: 23; Issue: 12 Linguagem: Inglês

10.1130/0091-7613(1995)023 2.3.co;2

1943-2682

Kaustuv Roy, David Jablonsk, James W. Valentine,

Marine animal studies overview

Research Article| December 01, 1995 Thermally anomalous assemblages revisited: Patterns in the extraprovincial latitudinal range shifts of Pleistocene marine mollusks Kaustuv Roy; Kaustuv Roy 1Department of Biology, University of California, San Diego, La Jolla, California 92093 Search for other works by this author on: GSW Google Scholar David Jablonsk; David Jablonsk 2Department of Geophysical Sciences, University of Chicago, 5734 South Ellis Avenue, Chicago, Illinois 60637 Search for other works by this author on: GSW Google Scholar James W. Valentine James W. Valentine 3Museum of Paleontology and Department of Integrative Biology, University of California, Berkeley, California 94720 Search for other works by this author on: GSW Google Scholar Author and Article Information Kaustuv Roy 1Department of Biology, University of California, San Diego, La Jolla, California 92093 David Jablonsk 2Department of Geophysical Sciences, University of Chicago, 5734 South Ellis Avenue, Chicago, Illinois 60637 James W. Valentine 3Museum of Paleontology and Department of Integrative Biology, University of California, Berkeley, California 94720 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1995) 23 (12): 1071–1074. https://doi.org/10.1130/0091-7613(1995)023 2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Kaustuv Roy, David Jablonsk, James W. Valentine; Thermally anomalous assemblages revisited: Patterns in the extraprovincial latitudinal range shifts of Pleistocene marine mollusks. Geology 1995;; 23 (12): 1071–1074. doi: https://doi.org/10.1130/0091-7613(1995)023 2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Pleistocene faunas of the eastern Pacific shelf are characterized by thermally anomalous species assemblages—i.e., coexisting species that inhabit different climatic regimes today. We used data on the latitudinal ranges of 2887 extant molluscan species to determine the biological basis of the Pleistocene faunal migrations. Overall, the species exhibiting the most extensive range shifts (termed extraprovincial species) were not drawn randomly from the available species pool, and the pattern is climatically asymmetrical. The latitudinal ranges of southern extraprovincial species are significantly wider on average than those of the species pool from which they were drawn, but the ranges of northern extraprovincials resemble those of their parent pool. This contrast is primarily a consequence of the biogeographic structure of the eastern Pacific fauna; water-mass boundaries are more effective barriers for southern species migrating north in response to changing climatic conditions than for northern species moving south. Our analysis of Pleistocene marine mollusks provides a biological and environmental context for species response to environmental change and permits predictions about the movement of eastern Pacific species relative to major environmental barriers in the face of future global change. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.