, Volume 17, Issue 4, pp 245-264,
Open Access This content is freely available online to anyone, anywhere at any time.
Date: 14 Jul 2010

The Great American Biotic Interchange: Dispersals, Tectonics, Climate, Sea Level and Holding Pens

Abstract

The biotic and geologic dynamics of the Great American Biotic Interchange are reviewed and revised. Information on the Marine Isotope Stage chronology, sea level changes as well as Pliocene and Pleistocene vegetation changes in Central and northern South America add to a discussion of the role of climate in facilitating trans-isthmian exchanges. Trans-isthmian land mammal exchanges during the Pleistocene glacial intervals appear to have been promoted by the development of diverse non-tropical ecologies.