Vicariance Biogeography in Mesoamerica
نویسندگان
چکیده
منابع مشابه
Use of dispersal–vicariance analysis in biogeography – a critique
One of the central aims of modern historical biogeography is to reconstruct the history of a particular taxon or a group of taxa based on phylogenetic hypotheses (Cox & Moore, 2005; Lomolino et al., 2006). The advent of molecular datasets and improved analytical methods in phylogenetics has led to a proliferation of phylogenetic studies in the last two decades. Historical biogeography has been ...
متن کاملThe shifting roles of dispersal and vicariance in biogeography.
Dispersal and vicariance are often contrasted as competing processes primarily responsible for spatial and temporal patterns of biotic diversity. Recent methods of biogeographical reconstruction recognize the potential of both processes, and the emerging question is about discovering their relative frequencies. Relatively few empirical studies, especially those employing molecular phylogenies t...
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Studies of clinal variation have helped greatly in the elucidation of the mechanisms of both adaptation and speciation (Endler 1977; Barton and Hewitt 1989). Clines have been explained by selection acting within a continuous population ( primary intergradation ) or, more frequently, as the result of contact between populations differentiated in allopatry (secondary intergradation) (Endler 1977;...
متن کاملTwo Requirements for Obtaining Valid Common Patterns under Different Assumptions in Vicariance Biogeography
In vicariance biogeography, widespread or sympatric taxa can be dealt with under assumptions 0, 1 and 2. Data from cladogenetic relationships among taxa of a monophyletic group and their distribution over areas are assumed, in the order 0 → 1 → 2, to represent decreasing information about vicariance events. A less strict assumption carries a larger solution set, i.e. the number of possible area...
متن کاملA posteriori and a priori methodologies for testing hypotheses of causal processes in vicariance biogeography
Methods used in vicariance biogeography fall into the categories of a posteriori methods (e.g., Component Compatibility Analysis and Brooks Parsimony Analysis) and a priori methods (e.g., Component Analysis, Reconciled Tree Analysis, and Three Area Statement Analysis). Each category corresponds to a particular methodology that arrives at general area cladograms by testing null hypotheses in a p...
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ژورنال
عنوان ژورنال: Annals of the Missouri Botanical Garden
سال: 1982
ISSN: 0026-6493
DOI: 10.2307/2399081