THE GREAT AMERICAN BIOTIC INTERCHANGE: PATTERNS AND PROCESSES1

@inproceedings{DavidWebb2006THEGA,
  title={THE GREAT AMERICAN BIOTIC INTERCHANGE: PATTERNS AND PROCESSES1},
  author={S. David Webb},
  year={2006}
}
When the Panamanian land bridge was emplaced about 2.7 Ma, it triggered the Great American Biotic Interchange (GABI), a major mingling of land mammal faunas between North and South America. Four families of northern immigrants (Procyonidae, Felidae, Tayassuidae, and Camelidae) diversified at moderate rates, while four others, Canidae, Mustelidae, Cervidae, and especially Muridae, evolved explosively. As a consequence, half of living South American genera are descendants of northern immigrants… 

The Great American Biotic (Faunal) Interchange

  • T. Defler
  • Geography, Environmental Science
    Topics in Geobiology
  • 2018
This is the story of the revolutionary changes to South American mammals that occurred when it became possible for mammals from North America to pass to South America. This probably began as early as

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

  • M. Woodburne
  • Environmental Science, Geography
    Journal of Mammalian Evolution
  • 2010
The biotic and geologic dynamics of the Great American Biotic Interchange are reviewed and revised and trans-isthmian land mammal exchanges during the Pleistocene glacial intervals appear to have been promoted by the development of diverse non-tropical ecologies.

Historical biogeography of the Isthmus of Panama

As a sea barrier, the isthmus induced divergent environmental change off its two coasts—creating contrasting ecosystems through differential extinction and diversification.

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This study investigates biogeographic patterns in South America, just before or when the first immigrants are recorded and reviews the temporal and geographical distribution of fossil mammals during the GABI, and performs a dissimilarity analysis which grouped the faunal assemblages according to their age and their geographic distribution.

A Taxonomic and Biogeographic Review of the Fossil Tapirs from Bolivia

The geographical distribution of Pleistocene records of Tapirus in South America indicates that T. tarijensis was the only known species inhabiting the Tarija Valley during this time, and a taxonomic re-evaluation of Tap viruses is provided.

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A temporal and spatial framework is provided to address key aspects of the historical biogeography and diversification of this diverse mammal group by using mitochondrial and nuclear DNA datasets coupled with methods of divergence time estimation, ancestral area reconstruction and comparative phylogenetics.

Evolution of South American Mammalian Predators During the Cenozoic: Paleobiogeographic and Paleoenvironmental Contingencies

During most of the Cenozoic, South America was an “island continent,” sporadically connected with other landmasses. This feature resulted in the development of a peculiar biota in which endemic South

Increased xenarthran diversity of the Great American Biotic Interchange: a new genus and species of ground sloth (Mammalia, Xenarthra, Megalonychidae) from the Hemphillian (late Miocene) of Jalisco, Mexico

Comparison and analysis of the type specimen, a mandible, shows a closer relationship to South American taxa than those from North America or the Caribbean, which suggests that during the early stages of the Great American Biotic Interchange there were two separate dispersal events of megalonychid sloths.

Upper Pleistocene deposits from the Cauca Valley Depósitos del Pleistoceno Superior en el Valle del Río Cauca

The rise of the Isthmus of Panama is one of the major biogeographical events of the Cenozoic. It is a massive natural experiment in biological migrations, as lands formerly separated—South America
...

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