Rather than favoring only one approach, Juan J. Morrone proposes
a comprehensive treatment of the developments and theories of
evolutionary biogeography. Evolutionary biogeography uses
distributional, phylogenetic, molecular, and fossil data to assess
the historical changes that have produced current biotic patterns.
Panbiogeography, parsimony analysis of endemicity, cladistic
biogeography, and phylogeography are the four recent and most
common approaches. Many conceive of these methods as representing
different "schools," but Morrone shows how each addresses different
questions in the various steps of an evolutionary biogeographical
analysis.
Panbiogeography and parsimony analysis of endemicity are useful
for identifying biotic components or areas of endemism. Cladistic
biogeography uses phylogenetic data to determine the relationships
between these biotic components. Further information on fossils,
phylogeographic patterns, and molecular clocks can be incorporated
to identify different cenocrons. Finally, available geological
knowledge can help construct a geobiotic scenario that may explain
how analyzed areas were put into contact and how the biotic
components and cenocrons inhabiting them evolved. Morrone compares
these methods and employs case studies to make it clear which is
best for the question at hand. Set problems, discussion sections,
and glossaries further enhance classroom use.
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