quiz 6 ch 20 Flashcards Preview

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Flashcards in quiz 6 ch 20 Deck (16)
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1
Q

succession

A

gradual change in plant and animal communities in area after disturbance

2
Q

primary succession

A

newly exposed geological substrate

3
Q

secondary succesion

A

after disturbance that doest destroy the soil

4
Q

climax community

A

late successional community that remains stable unless disrupted

5
Q

oosting

A

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

6
Q

Johnston and odum experiment

A

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

7
Q

biomass accumulation model

A

reorganization
aggradation
transition
steady state

8
Q

reorganization

A

10-20 yrs

forest loses biomass and nutrients

9
Q

aggradation

A

100 + yrs

biomass increase steadily to peak

10
Q

transition

A

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

11
Q

steady state

A

biomass fluctuates around mean

12
Q

stability

A

absence oof change

13
Q

resistance

A

able to maintain structure and function in face of potential disturbance

14
Q

resilience

A

ability of recover from disturbance

15
Q

does community stability not allow any changes?

A

no, populations of individual species can still change

16
Q

stability depends on

A

resolution of study like spp level v. functional group level