Ecology 3

Question 1

Bio geochemical cycles

Answer 1

Various nutrient circuits which involve both abiotic and biotic components of an ecosystem
Water, carbon, nitrogen, phosphorus

Question 2

Nitrogen cycle

Answer 2

Enters atmosphere in gaseous form n2

Question 3

Nitrogen fixing bacteria

Answer 3

N2 to NH4 through nitrogen fixation

Question 4

Ammonification

Answer 4

NH4 produced from decomposers when breaking down organic matter

Question 5

Nitrification

Answer 5

NH4 to nitrite No2 then No3 nitrate

Question 6

Assimilation

Answer 6

Using of nitrogen in a plant

Question 7

Denitrifying bacteria

Answer 7

Nitrates back into n2 for release into the atmosphere

Question 8

Primary succession

Answer 8

Nothing no soil to pioneering community to climax community

Question 9

Why nothing?

Answer 9

Melting glaciers
Volcanic eruption
Landslides

Question 10

Secondary succession

Answer 10

Re-establish ecosystem after a disturbance

Question 11

Disturbance

Answer 11

Flood or fire

Question 12

Population dispersion

Answer 12

How a population is spread in a area density

Question 13

Types of population dispersion

Answer 13

Clumped, uniform, random

Question 14

Random sampling

Answer 14

Take an area divide into quadrants

Question 15

Capture mark release and recapture (Lincoln Peterson index)

Answer 15

Capture some organisms mark and release them and over a amount of time recapture and keep track of how many have been captured.

Question 16

Nitrogen cycle

Answer 16

Enters atmosphere in gaseous form n2

Question 17

Nitrogen fixing bacteria

Answer 17

N2 to NH4 through nitrogen fixation

Question 18

Ammonification

Answer 18

NH4 produced from decomposers when breaking down organic matter

Question 19

Nitrification

Answer 19

NH4 to nitrite No2 then No3 nitrate

Question 20

Assimilation

Answer 20

Using of nitrogen in a plant

Question 21

Denitrifying bacteria

Answer 21

Nitrates back into n2 for release into the atmosphere

Question 22

Primary succession

Answer 22

Nothing no soil to pioneering community to climax community

Question 23

Why nothing?

Answer 23

Melting glaciers
Volcanic eruption
Landslides

Question 24

Secondary succession

Answer 24

Re-establish ecosystem after a disturbance

Question 25

Disturbance

Answer 25

Flood or fire

Question 26

Population dispersion

Answer 26

How a population is spread in a area density

Question 27

Types of population dispersion

Answer 27

Clumped, uniform, random

Question 28

Random sampling

Answer 28

Take an area divide into quadrants

Question 29

Capture mark release and recapture (Lincoln Peterson index)

Answer 29

Capture some organisms mark and release them and over a amount of time recapture and keep track of how many have been captured.

Question 30

Percolation

Answer 30

Water moves down into the soil

Question 31

Water cycle

Answer 31

Evaporation — condensation– precipitation– percolation– evaporation/ transpiration