Download 2.8 Effects on Ecosystems

2.8 Biotic and Abiotic Influences on Ecosystems
A factor that restricts the size of a population or where it can live is called a LIMITING FACTOR
ABIOTIC limiting Factors determine where a specie is able to live
Some examples include:
Temperature
Precipitation
Light
BIOTIC limiting Factors determine how easily a specie can survive in an ecosystem
Some examples include:
Competition – two organisms compete for a common prey
Preditation – one organism feeds on another
Mutualisms – two organisms benefit each other
Parasitism – one organism lives on or in a host and feeds off it (ex. tapeworms)
CARRYING CAPACITY:
Carrying Capacity is the maximum population size of a species that a
given ecosystem can handle (food, water, space …).