Food webs Flashcards
1
Q
Links
A
- interaction between two species, generally consumer and consumed, direction of energy flow
2
Q
Source webs
A
focus is the primary producer, includes everything that consumes it and the predators of those consumers
3
Q
Sinks webs
A
focus is on consumer and includes everything that it consumes and the organisms that those consumers eat…
4
Q
Community webs
A
Includes all nodes with links
5
Q
mutualism examples (broad)
A
plants - pollinators
seeds - dispersers
hosts - parasites
6
Q
connectance
A
number of actual links divided by number of potential links
7
Q
linkage density
A
number of links per species
8
Q
dynamic constraints hypthesis
A
long food chains are more vulnerable to disturbance than short food chains
9
Q
Stability and complexity
Mathematical and theoretical models
A
- Elton - more complex more stable (simple mathematical models unstable)
- MacArthur - more complex more stable (more possible pathways)
- May - more complex less stable
