Biogeog lecture 5 Flashcards
An event or a force that causes marked changes to an area is called?
disturbance
Disturbance often comes as …… to the land so
short term or temporary changes
What are the two agents of disturbance?
Natural and anthropogenic
Is disturbance important to virtually all ecosystems or communities?
yes
A disturbed ecosystem has a chance to recover once …..
the disturbing factor is removed
Changes in a community or an ecosystem after a disturbance is called ?
Ecological succession
A predictable and orderly change in a community of life involving gradual but progressive replacement of individual species by others until no further change is possible is called?
Succession
The final stage in an ecological succession is called?
Climax stage
The final mature, stable, self-maintaining and self-reproducing stage of community development under a particular climate is called
Climax stage
What are the two major types of succession ?
Primary and secondary
The entire succession is called?
Sere
The individual stages of succession is called?
seral stage or seral community
The process of establishing a community in an area where no life existed previously is
primary succession
Examples of places for primary succession is
isolated islands and land areas formed after volcanic activities
Re-stabilization after a disturbance of an area where life was previously existing is called ?
Secondary succession
