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Free Content Shore Barnacles (Cirripedia, Thoracica) and a Revision of their Provincialism and Transition Zones in the Tropical Eastern Pacific

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The emergence of the Isthmus of Panama separated the Caribbean from the Tropical Eastern Pacific (TEP) and played a major role in the biogeographical development of the tropical and latitudinal marine provincialism seen today. Latitudinal provincialism in the Tropical Eastern Pacific has been assessed in terms of the distribution of a variety of taxa. A detailed study of the barnacles provides a basis for a refined model for the provincial associations observed. Closer attention needs to be paid to transition zones, and as it turns out, the Guif of California is not a province as strictly defined, but an extension of a transition zone. Provincial associations are defined in terms of the barnacles of the Tropical Eastern Pacific, and are compared with those known for other taxa.
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Document Type: Research Article

Publication date: 1990-03-01

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