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lukejharmon edited this page Sep 18, 2014 · 33 revisions

Traitathon wiki

How-to materials

Instructions for installing the aRbor package.

Test cases

We have a number of test cases where we built workflows both in R and Arbor to analyze trait evolution.

Anolis

Anolis lizards are famous as an example of convergent evolution. Ecomorphs, which are habitat specialists types found in anoles like "trunk-crown," "crown-giant", and "twig." These ecomorphs have evolved repeatedly on islands in the Greater Antilles.

Green anole

For Anolis, we envision the scenario where a researcher wants to reconstruct the historical patterns of ecomorph evolution in a phylogenetic context. The researcher might come to us with a list of anole species classified by ecomorph. They want to know if each of these ecomorphs have evolved more than once on the phylogenetic tree. We can address this question with two steps: (1) obtain a tree of anoles from open tree, and (2) use ancestral state reconstruction, which calculates relative likelihoods for each ecomorph on every node in the tree given some model of evolution.

Our work on anoles can be seen here.

Heliconia

Gopher-lice

Solanaceae

Tree of sex

Lifemapper

EOL