Apes Ch.7

Question 1

Edge effect

Answer 1

a change in species composition, physical conditions, or other ecological factors at the boundary between two ecosyste

Question 2

Inter specific competition

Answer 2

competition for resources among members of different species in a community

Question 3

Pioneer

Answer 3

in primary successin on a terrestrial site, the plants, lichens, and microbes that first colonize the site

Question 4

Primary succession

Answer 4

an ecological succession that begins in a an area where no biotic community previously existed

Question 5

Secondary succession

Answer 5

ccession on a site where an existing community

Question 6

Island biogeography

Answer 6

species richness on islands is determined by interaction of…

• rate of immigration
• rate of local extinction

Question 7

Ecological succession

Answer 7

Succession is a process of ecological change in which a series of natural communities are established and then replaced over time.

Question 8

Climax community

Answer 8

a relatively stable long-lasting community reached in a successional series; usually determined by climax and soil type

Question 9

Inertia

Answer 9

ability of a system to resist change. grassland has a low resilience to fire

Question 10

Constancy

Answer 10

ability of a system to keep its number over time throughout change. ex) deserts and arctic tundra are high

Question 11

Resilience

Answer 11

ability to recover after a disturbance. ex) grassland has a high one because of its roots. Harsh environments have low ones (deserts and arctic tundra)