long term ecology Flashcards
(5 cards)
1
Q
biotic interchange
A
large scale exchange of species from two extinct/ isolated biota
2
Q
the great biotic interchange
A
triggered by formation of land bridges between N & S America
3
Q
equilibrium theory of island biogeography
A
Mccarther & Wilson
species R increases with area and decreases with isolation
R is from immigration and extinction
dispersal is random
4
Q
overkill hypothesis
A
Paul Martin
Pleistocene megafauna extinction driven by arrival of homosapiens
controversial as believed it was humans and environmental interaction
5
Q
ecological ghosts
A
decline below abundance for them to preform ecological roles
eg javan rhinocerous
