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A new vicariance model for Amazonian endemics
Author(s) -
COLINVAUX PAUL
Publication year - 1998
Publication title -
global ecology and biogeography letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.164
H-Index - 152
eISSN - 1466-8238
pISSN - 0960-7447
DOI - 10.1111/j.1466-8238.1998.00286.x
Subject(s) - vicariance , amazon rainforest , amazonian , glacial period , biota , endemism , pleistocene , ecology , rainforest , geography , geology , biology , phylogeography , paleontology , archaeology , biochemistry , gene , phylogenetic tree
It is unlikely that ice age climates of the Amazon were sufficiently arid to fragment the forest as required by the Haffer refugial hypothesis. However, glacial Amazon climates were colder and had reduced CO 2 concentrations that would have had their strongest effects on the biota in the elevated areas stipulated to have been refugia. If local endemicity of butterflies or birds records Pleistocene speciation, this is because glacial climates provided cool, CO 2 starved islands in a sea of continuous forest.