Succession Flashcards
1
Q
Define primary succession.
A
Occurs in land where there has been no previous history of vegetation i.e. No soil.
2
Q
Define secondary succession.
A
Occurs where an existing community has been destroyed i.e. On well-developed soil after fire.
3
Q
Define chronosequence.
A
Sites which vary as far as possible, only in the length of time that succession has been going on.
4
Q
Define facilitation.
A
The entry of new species to a community because of the alteration of conditions or resources by previous species.
5
Q
Give characteristics of early succession.
A
- Rapid growth
- Small body size
- Early reproduction
- Many offspring
- Short life span
- Good colonisers
- ‘r’ selected.
6
Q
Give characteristics of late succession.
A
- Slower growth
- Large body size
- Later reproduction
- Fewer offspring
- Longer life span
- Good competitors
- ‘K’ selected.
7
Q
Define succession.
A
Non-seasonal, directional and continuous pattern of colonisation and extinction on a side by species populations.
