Ecological Succession

Question 1

Process where organisms occupy a site and change its environmental conditions, gradually making their way for another type of community

Answer 1

succession

Question 2

succession series in soil

Answer 2

1. Organic matter accumulation
2. Inc soil depth
3. improved soil structure
4. dec soil erosion
5. inc mineral recycling

Question 3

land w/o soil is colonized by living organisms where non have existed before

Answer 3

primary succession

Question 4

examples of primary succession

Answer 4

sandbars, rock surfaces, volcanic flow

Question 5

a new community develops from biological legacy of the previous
occurs after a disturbance

Answer 5

secondary succession

Question 6

examples of secondary succession

Answer 6

forest fires, abandoned agriculture

Question 7

made up of resilient pioneer species
create pockets/crevices in rocks

Answer 7

pioneer community

Question 8

able to immigrate quickly
can survive in harsh environments w few resources

Answer 8

pioneer species

Question 9

how do pioneer communities create pockets/crevices in rocks

Answer 9

patches of organic matter accumulate
water is retained
soil is formed
ex: microbes, mosses, lichens