quiz 6 ch 20

Question 1

succession

Answer 1

gradual change in plant and animal communities in area after disturbance

Question 2

primary succession

Answer 2

newly exposed geological substrate

Question 3

secondary succesion

Answer 3

after disturbance that doest destroy the soil

Question 4

climax community

Answer 4

late successional community that remains stable unless disrupted

Question 5

oosting

Answer 5

studied sites at every stage of succession on North Carolina and saw number of woody plant species increased at Piedmont plateau

Question 6

Johnston and odum experiment

Answer 6

saw an increase in bird diversity after a secondary succession in a temperate forest.
soon enough started to plateau when the vegetation started to become less desirable to most birds

Question 7

biomass accumulation model

Answer 7

reorganization
aggradation
transition
steady state

Question 8

reorganization

Answer 8

10-20 yrs

forest loses biomass and nutrients

Question 9

aggradation

Answer 9

100 + yrs

biomass increase steadily to peak

Question 10

transition

Answer 10

biomass declines as later stage successional species exclude weaker early stage competitiors

Question 11

steady state

Answer 11

biomass fluctuates around mean

Question 12

stability

Answer 12

absence oof change

Question 13

resistance

Answer 13

able to maintain structure and function in face of potential disturbance

Question 14

resilience

Answer 14

ability of recover from disturbance

Question 15

does community stability not allow any changes?

Answer 15

no, populations of individual species can still change

Question 16

stability depends on

Answer 16

resolution of study like spp level v. functional group level