Final Flashcards
apomorphic
evolutionary traits that are derived, not original
panibiogeography
large scale similiarties between continents, this is seen as similar to disjunction.
pleisomorphic
original or ancestral traits
phylogenies
the analysis of patterns of distribution of organims using groups whose interrelationships are analyzed using cladistics.
cladogenesis
evolutionary splitting in which each smaller branch forms a clade with individuals having inherited characteristics
endemism
a speciesa that is unique to a defined bigeographical region
provincialism
the degree to which species are restricted to a particular region
disjunction
different communities of the same species
vicariance
when a barrier seperates a species (ex. mountains oceans etc)
dispersal
When species travel to new areas through movement.
will hennig
Progression rule- as Clade’s diversify,pleisomorphic traits dominate the centers of origin. The most displaced member will have the most apomorphic traits.
lars brundin
Placed phylogenies on geography but explained it with dispersal rather than large vicarianc even events
len croizat
Creator of panbiogeography, which explains how vicariance is the explanation for all modern day species. Didn’t Use phylogenies.
comparitive approach
That different species under similar circumstances/ in the same area will have similar evolutionary traits
Ex Australia maursipals, reptiles
geo dispersal
Consistent dispersal among continents via wind currents