Biogeography of Pantropical and Global Groups

Michael Heads

in Molecular Panbiogeography of the Tropics

Published by University of California Press

Published in print January 2012 | ISBN: 9780520271968
Published online September 2012 | e-ISBN: 9780520951808 | DOI:
Biogeography of Pantropical and Global Groups

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This chapter concludes the geographic treatment with a brief discussion of biogeography in Mexico, especially the “Mexican-Y” pattern that involves differentiation between east and west. Outliers of the Old World suboscine birds in Panama, Colombia, and Ecuador illustrate geographic boundaries that are also seen in the primates of the region. The pantropical plant groups Rutaceae, Canellales, Cunoniaceae, and Monimiaceae are discussed in more detail, and show standard phylogenetic and geographic breaks at the Lebombo monocline, Madagascar, the Atlantic, the Tasman-Coral Sea region, and eastern Brazil. Monimiaceae include two trans-Pacific affinities, one at tropical latitudes, between Australasia and tropical America, and one further south, between New South Wales and southern Chile.

Keywords: Mexico; Mexican-Y; Panama; Colombia; Ecuador; Rutaceae; Canellales; Cunoniaceae; Monimiaceae

Chapter.  9122 words.  Illustrated.

Subjects: Evolutionary Biology

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