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rft.atitle Area, Continental Drift and Mammalian Diversity
rft.epage 194
rft.genre article
rft.issn 0094-8373
1938-5331
rft.issue 2
rft.jtitle Paleobiology
rft.tpages 5
rft.pages 189-194
rft.pub Paleontological Society
rft.date 1975-04-01
x.date 1975-04-01T00:00:00Z
rft.spage 189
rft.volume 1
abstract <p>Mammalian generic, familial, and ordinal diversities correlate significantly with continental area. The area effect is similar in form to that shown for true islands: S = kA<sup>z</sup>, where S is the diversity, A is the area, and k and z are fitted constants. For mammalian genera and continental area, z equals 0.33, for families, z equals 0.23, and for orders, z equals 0.13. The area effect permits quantitative modeling of extinction due to biotic competition between previously isolated faunas. The Late Cenozoic extinction of North and South American mammalian faunas following the rise of the Panamanian land bridge is overestimated by seven families. The overestimate may result from assumptions of complete biotic interchange and universal competition. The role of plate tectonics in regulating diversity may be extensively modified by regional environmental conditions.</p>
authors Array ( [rft.aulast] => Flessa [rft.aufirst] => Karl W. )
languages eng
url https://www.jstor.org/stable/2400272
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author Flessa, Karl W.
author_facet Flessa, Karl W., Flessa, Karl W.
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description <p>Mammalian generic, familial, and ordinal diversities correlate significantly with continental area. The area effect is similar in form to that shown for true islands: S = kA<sup>z</sup>, where S is the diversity, A is the area, and k and z are fitted constants. For mammalian genera and continental area, z equals 0.33, for families, z equals 0.23, and for orders, z equals 0.13. The area effect permits quantitative modeling of extinction due to biotic competition between previously isolated faunas. The Late Cenozoic extinction of North and South American mammalian faunas following the rise of the Panamanian land bridge is overestimated by seven families. The overestimate may result from assumptions of complete biotic interchange and universal competition. The role of plate tectonics in regulating diversity may be extensively modified by regional environmental conditions.</p>
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imprint Paleontological Society, 1975
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spelling Flessa, Karl W. 0094-8373 1938-5331 Paleontological Society https://www.jstor.org/stable/2400272 <p>Mammalian generic, familial, and ordinal diversities correlate significantly with continental area. The area effect is similar in form to that shown for true islands: S = kA<sup>z</sup>, where S is the diversity, A is the area, and k and z are fitted constants. For mammalian genera and continental area, z equals 0.33, for families, z equals 0.23, and for orders, z equals 0.13. The area effect permits quantitative modeling of extinction due to biotic competition between previously isolated faunas. The Late Cenozoic extinction of North and South American mammalian faunas following the rise of the Panamanian land bridge is overestimated by seven families. The overestimate may result from assumptions of complete biotic interchange and universal competition. The role of plate tectonics in regulating diversity may be extensively modified by regional environmental conditions.</p> Area, Continental Drift and Mammalian Diversity Paleobiology
spellingShingle Flessa, Karl W., Paleobiology, Area, Continental Drift and Mammalian Diversity
title Area, Continental Drift and Mammalian Diversity
title_full Area, Continental Drift and Mammalian Diversity
title_fullStr Area, Continental Drift and Mammalian Diversity
title_full_unstemmed Area, Continental Drift and Mammalian Diversity
title_short Area, Continental Drift and Mammalian Diversity
title_sort area, continental drift and mammalian diversity
title_unstemmed Area, Continental Drift and Mammalian Diversity
url https://www.jstor.org/stable/2400272