Area Cladogram Example
Area Cladogram Example |
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| The area cladogram uses phylogenetic relationships to trace geographical changes - either dispersal events or barriers to dispersal. The vicariance hypothesis is that the first barrier resulted in the trait that differentiated B & C from A, and the second barrier resulted in the trait that differentiated B from C. The dispersal hypothesis is that traits arose after each dispersal. However, the sequence of dispersals is not shown by the cladogram. |