1
Q
What is succession?
A
a series of changes in a species composition (specific species) in a given place over time
2
Q
How does succession continue on bear rocks?
A
1) area is colonised by pioneer species
2) change the enviromental conditions to make it less
hostile e.g. increase in nutrients
3) this allows other species to out-compete the preceeding species
4) this will continue until climax community is reached e.g. woodland
3
Q
What is climax community?
A
final stage of succession where few species are dominant -
it is a stable equilibrium of species
4
Q
What things happen when succession takes place?
A
- soil depth / humus
- water and nutrient availability
- biodiversity
- plant height
- niches
- light intensity at ground
all of these things will increase but light intensity at ground will decrease
