6 - Foodwebs (1) Flashcards
1
Q
Modularize
A
study small, important
modules from the broader web
2
Q
Bottom-up forcing
A
Competition between primary producers for limiting nutrients determines the state of higher trophic levels.
3
Q
Top-down forcing
A
The populations of the organisms lower trophic levels (bottom of the pyramid) are controlled by the organisms at the top. This approach is also called the predator-controlled food web of an ecosystem.
4
Q
Sea otters and kelps guy
A
James Estes (2011)
5
Q
A
Connectivity of webs results in
indirect effects ramifying through
communities (and even across
communities)
6
Q
Phase shifts
A
Alternative stable ecosystem
states
