Succession Flashcards
Wha is a community?
Many different species living in the same place t the same time
What is Succession?
The sequence of invasion and replacement of species in an ecosystem over time
It’s driven by abiotic factors (climate) and biotic factors
After a disturbance, the community begins o rebuild itself
A continuous process
The community makes up changes throughout the process
What is Primary Succession?
It occurs in an area where no life exited before
Bare from from which soil must be made
Eg. Volcanic eruption glacier retreat
What is Secondary Succession?
It occurs in an area were there was life before - so it’s faster
Soil is present
Eg. forest fire, flood
What are the two significant communities in Succession?
Pioneer Species - the first species to move in after a disturbance
Climax Community - long-live, stable species that dominates an area for several yeas until the next disturbance occurs