Evolution Of Biodiversity Flashcards
Ecological opertunity
Open ecological niches
Key adaptions
Features that enable a lineage to interact with the environment in a new way to use new resources
Identifying a key adaption
Sister group comparison
Species selection
Consistent correlation between trait and an increase/decrease of species richness
Lineage though time plot
Changes in rates of splitting in a phylogenetic tree can be followed through time
Erroneous as it does not represent the extinction events
Competitive displacement
Later clade causes extinction of earlier clade
Incumbent displacement
An ecologically similar taxon prevents similar taxon from diversifying, as it already occupied resources
Incumbent replacement
Extinction of incumbent taxon permits second taxon to diversify