Biogeographical Evidence of Evolution Flashcards
Knowing when and where species existed is important in determining evolutionary and ecological relationships, this is the focus of what?
Biogeography
Vicariance
Isolation of population due to geographic barrier
may refer to both how plants spread seeds around and to how organisms occupy different geographic locations through movement.
Dispersal
proposed this theory of continental drift.
Alfred Wegner
This theory suggests that most of today’s continents were once connected.
Continental Drift Theory
the changes in the ____________ affected the amount of land available for organisms to thrive in. These patterns may have affected how species were dispersed and how they interacted with each other.
sea level
a stretch of land that connected areas in times when sea levels were low, became exposed from underwater.
land bridges
refers to the movement of a population away from an area.
Emigration
refers to the movement of a population into an area.
Immigration
are landforms like mountains and valleys, or bodies of water like rivers and oceans.
Geographical Barriers
It refers to a geographic location where multiple species have been proven to have acquired distinct characteristics which may have led to speciation.
center of origin