Succession

Question 1

what is succession?

Answer 1

• succession is the progressive change of communities over time
• change in a natural feature of dynamic ecosystems and occurs on different scales

Question 2

what are the two different scales of succession

Answer 2

• small scale disturbances include a tree falling in the forest or wombat digging a burrow
• large disturbances include catastrophic events such as a volcanic eruption, cyclones, earthquakes and tsunamis.

Question 3

what is nudation?

Answer 3

no organism inhabit environment because of catastrophic event

Question 4

what is primary succession?

Answer 4

Primary succession is a development and change in plant communities over time, leading eventually bare ground to a climax community

Question 5

what do you call the community stages in primary succession?

Answer 5

sere

Question 6

what are pioneer species

Answer 6

Pioneer species are resilient species that are the first to colonize barren environments, or to repopulate previously biodiverse steady-state ecosystems that have been disrupted by natural disaster

Question 7

what are the four steps to form the phases of Primary Succession

Answer 7

1. Nudation
2. Invasion
3. Competition and Reaction
4. Stabilisation

Question 8

what is secondary succession?

Answer 8

is the successive communities in an area where a previous community has been removed