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Abstract Detail


Biogeography

Mavrodiev, Evgeny [1], Laktionov, A. P. [2], Cellinese, Nico [1].

How floristic data can inform historical biogeography: an example from the Caucasian monocot, gymnosperm, and pteridophyte flora.

The Caucasus is a distinct floristic area that includes 42 well-defined sub-regions characterized by the presence of over 950 monocot and pteridophyte native taxa. We constructed a presence-absence taxon matrix that we investigated using a Parsimony Analysis of Endemicity (PAE) approach modified by analyzing the dataset in a Maximum Likelihood framework using a simple Mk model and Gamma distribution rates of heterogeneity. We present results based on both parsimony and maximum likelihood. We used the resulting taxon-area cladogram as the basis for stochastic key species reconstruction to suggest that taxon distribution may actually convey a substantial amount of historical information.

Broader Impacts:


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1 - University of Florida, Florida Museum of Natural History, Gainesville, FL, 32611, USA
2 - Astrakhan State University, Department of Biology, Astrakhan, 414056, Russia

Keywords:
Caucasus flora
Biogeography
maximum likelihood
Parsimony Analysis of Endemicity.

Presentation Type: Oral Paper:Papers for Topics
Session: 05
Location: Lindell A/Chase Park Plaza
Date: Monday, July 11th, 2011
Time: 8:45 AM
Number: 05002
Abstract ID:410


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