Lecture 16 Flashcards
1
Q
Ecological Community
A
An assemblage of different populations of different species living close enough together for potential interactions
2
Q
Gall
A
- Swelling of plant tissue in response to an alien substance
- Provides nutrients and shelter for developing larvae
3
Q
Exploitation
A
+/- interaction
- predation
- parasitism
- herbivory
4
Q
Competition
A
-/- interaction
5
Q
Mutualism
A
+/+ interaction
6
Q
Commensalism
A
+/0 interaction
7
Q
Indirect Effect
A
Impact of one species on another that is mediated by a third species
ex) Trophic cascade
Predator—>(-) Herbivore—->(-)——>(-)Plants
Predator—>(+) Plants
8
Q
How might you determine the effect that one species has on another?
A
Peturbation experiment
-change abundance of one species and measure consequences in another
Comparative Study
-Look for natural variation in numbers
