Succession and Nutrient Cycling

Question 1

jackson and Jackson (2008)

Answer 1

The change over time of a community until it has reached its stable climax community

Question 2

Thomas (2008)

Answer 2

Secondary succession takes place after a disturbance - can be natural or human

Question 3

Clements (1916)

Answer 3

Climax community can be reached

Question 4

Tansley (1920)

Answer 4

Mosaic of polyclimax communities, reflecting local environmental factors

Question 5

Gleason (1917)

Answer 5

No final stable, characteristic assemblage ever reached

Question 6

Whittaker (1953)

Answer 6

Gradual changes in response to the environment meaning stable can be reached for those conditions

Question 7

Wigley (2000)

Answer 7

Interest in carbon cycle has increased since observed rises of atmospheric CO2 from 1957 to 1993

Question 8

WIGLEY (2000) GRAPH

Answer 8

Wigggggley line goes up

1958-1994years

310-360ppm

Question 9

Schimel (2000)

Answer 9

Carbon cycle is crucial to maintaining life

fixed cycle so carbon must be stored

Question 10

Holden (2012)

Answer 10

all cycles are important to ensuring existence of ecosystems and their communities