Vegetation Succession

Question 0

Organic matter builds up as a result of

Answer 0

Plant growth and decay to develop a soil.

Question 1

Microbial community: newly formed soils tend to be

Answer 1

Dominated by bacteria; over time, fungal species become increasingly important.

Question 2

Organic matter: pioneer vegetation alters

Answer 2

Soil composition to allow establishment of other faster, taller growing species.

Question 3

As organic matter accumulates, the organic carbon

Answer 3

Content of the soil increases and new organic matter accumulates faster; this is positive feedback.

Question 4

Succession is the

Answer 4

Process of gradual change in a structure of a community.

Question 5

Primary sucession:

Answer 5

Occurs on bare, uncolonised areas.

Question 6

Secondary succession:

Answer 6

Occurs in an area where vegetation has been previously and some organic matter still remains in the soil.

Question 7

In a deflected climax, the vegetation won’t

Answer 7

Reach the end point of succession.

Question 8

Deflected climax: Ongoing management is required to

Answer 8

Conserve deflected climax communities.

Question 9

Deflected climax: climatic climax of vegetation is

Answer 9

Prevented by external forces; usually humans.

Question 10

Deflect climax: Teign catchment -

Answer 10

Grassland is prevented from becoming deciduous forest by cattle grazing.