Community Dynamics

Question 1

Succession

Answer 1

Change in community structure over time

Question 2

Primary succession

Answer 2

Establishment of life. Newly exposed/created substrate

Question 3

Nurse plants

Answer 3

Facilitate in the establishment of other species

Question 4

Secondary Succession

Answer 4

From a point where life still exists, happens after a disturbance

Question 5

Monoclimax Hypothesis model of succession

Answer 5

Endpoint where the community is moving, stable climax community, by Clements

Question 6

Gleason model of succession

Answer 6

Much greater role of chance, dependant on who gets there 1st, not orderly, depends on the initial floristic/faunistic composition

Question 7

Facilitation model of succession

Answer 7

Early species who gets in facilitates the arrival of later species by modifying their environment to make it less suitable for themselves and more suitable for others. Done by altering nutrient availability, introducing disease, changes in soil texture. Is predictable

Question 8

Inhibition model of succession

Answer 8

Succession is heterogenous because developing a site depends on who gets there 1st, no species is better than the other, not necessarily orderly, unpredictable, makes a site less suitable for both early/late succession species

Question 9

Random Colonization model of succession

Answer 9

Everything is random, null hypothesis

Question 10

Alpha Diversity

Answer 10

Within a habitat

Question 11

Gamma Diversity

Answer 11

Of a large, general area

Question 12

Beta Diversity

Answer 12

Comparing the diversity of different habitats, diversity of diversity

Question 13

Intermediate Disturbance Hypothesis

Answer 13

A little bit of disturbance retards competitive exclusion