ecology

Question 1

Studies the relationships of organisms to each other and to their physical environment

Answer 1

Ecology

Question 2

Population

Answer 2

group of individuals of the same species in the same area

Question 3

Community

Answer 3

All or some of the organisms in a common environment (may study competition, succession, conservation)

Question 4

Ecosystem

Answer 4

Consists of all the organisms in an area and the physical environment with which they interact
(includes plants, animals, soil, water and nutrient cycles)

Question 5

Succession

Answer 5

Changes in the composition of a community from the initial development of vegetation to the
establishment of a climax community

Question 6

two types of succession

Answer 6

primary succession(no soil present)
Secondary succession(soil present)

Question 7

Climax community

Answer 7

Relatively stable communities at the end of ecological succession

Question 8

Primary succession

Answer 8

Happens on bare rocks and lava
Pioneer species like lichens and mosses (don’t need soil to grow)
* No competition
* Eventually soil starts to form, allowing other plants to grow

Question 9

what changes the environmental conditions of the cite in succession?

Answer 9

the plant community changes conditions like light, soil, and moisture

Question 10

what pushed towards the next

Answer 10

changes caused by plant community

Question 11

secondary succession

Answer 11

-Species become established from existing seeds; some may resprout from roots or stems * Disturbances such as fire, logging, abandoned farmland…
-Fire is a common disturbance; 2 major strategies: – Resprouting from underground plant parts like roots, rhizomes, meristems (many chaparral species, aspen, grasses)
– Seeds buried in soil (e.g., lodgepole pine)