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020 _a9789400760554
_9978-94-007-6055-4
024 7 _a10.1007/978-94-007-6055-4
_2doi
050 4 _aQE701-760
072 7 _aRBX
_2bicssc
072 7 _aSCI054000
_2bisacsh
082 0 4 _a560
_223
100 1 _aMartínez, Sergio.
_eauthor.
245 1 0 _aBiogeography of the Quaternary Molluscs of the Southwestern Atlantic Ocean
_h[electronic resource] /
_cby Sergio Martínez, Claudia J. del Río, Alejandra Rojas.
264 1 _aDordrecht :
_bSpringer Netherlands :
_bImprint: Springer,
_c2013.
300 _aIX, 36 p. 16 illus., 3 illus. in color.
_bonline resource.
336 _atext
_btxt
_2rdacontent
337 _acomputer
_bc
_2rdamedia
338 _aonline resource
_bcr
_2rdacarrier
347 _atext file
_bPDF
_2rda
490 1 _aSpringerBriefs in Earth System Sciences,
_x2191-589X
505 0 _aIntroduction -- Present oceanographic conditions -- Present biogeographical units -- Neogene roots -- Quaternary mollusks -- -Outline and Methods -- -Previous studies -- -Species distribution -- Faunal boundaries during the Quaternary -- Final remarks.
520 _aThe Quaternary comprises a brief time in the Earth’s history, and apart from a few exceptions, molluscan assemblages recovered from exposures along the coast of Southwestern South America (Southern Brazil, Uruguay, Argentina) are essentially the same than those that inhabit the region today, leading to the assumption that no important change in the distribution of the faunas since Pleistocene times has occurred. However, the good taxonomic and temporal resolution reached in the last years, allowed us to detect some biogeographic changes, although traditional biogeographic units remain the same (i.e. Magellanic and Argentinean Provinces). These modifications involve mainly variations in the taxonomic composition of the assemblages and in the southern boundaries of some species distributions (extralimital species), today retracted northwards. These changes are related to southward shifts of the warm waters of the Brazilian Current, correlated with global warm peaks. This phenomenon was more intense in the Late Pleistocene (MIS 5e) and in the Holocene between ca. 6500-3500 14C yr.
650 0 _aEarth sciences.
650 0 _aPaleontology.
650 0 _aEcosystems.
650 0 _aAnimal anatomy.
650 1 4 _aEarth Sciences.
650 2 4 _aPaleontology.
650 2 4 _aAnimal Systematics/Taxonomy/Biogeography.
650 2 4 _aAnimal Anatomy / Morphology / Histology.
650 2 4 _aEcosystems.
700 1 _adel Río, Claudia J.
_eauthor.
700 1 _aRojas, Alejandra.
_eauthor.
710 2 _aSpringerLink (Online service)
773 0 _tSpringer eBooks
776 0 8 _iPrinted edition:
_z9789400760547
830 0 _aSpringerBriefs in Earth System Sciences,
_x2191-589X
856 4 0 _uhttp://dx.doi.org/10.1007/978-94-007-6055-4
912 _aZDB-2-EES
942 _2Dewey Decimal Classification
_ceBooks
999 _c48760
_d48760