Pages in this set

Page 1

Preview of page 1
Succession ­ Revision
Succession is the process by which an ecosystem changes over time. The biotic conditions change as
the abiotic conditions change. There are two types, primary and secondary succession.


Primary Succession.
This happens on land that's been newly formed or exposed, e.g. where a volcano erupted to form…

Page 2

Preview of page 2
It happens in the same way to primary succession, but because the soil is already formed, and
contains seed, roots and soil organisms, the numbers of species present right from the beginning are
much higher. The pioneer species are larger plants, like shrubs.


Deflected Succession, / Plagioclimax.
Human activities can…

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »