Ecology 11 B Notes
Vocabulary
biotic factors- living or once-living organisms
abiotic factors- never living chemical and physical factors in an environment
competition- a contest between individuals
What is an ecosystem?
Biotic factors- living or once living organisms
Compete for resources
Predator - Prey relationships
Abiotic factors- non living parts that affect its survival growth.
Temperature influences the most.
Niche
function of an organism in an ecosystem
role of an organism in the community
how it satisfies its need for food and protection
Competition
The number of niches in an ecosystem is limited. In a certain area, two populations may try to occupy the same niche
When they compete with one another
The one that is better adapted for the niche will win and will crowd out the other population.
In a stable community, two organisms cannot occupy the same niche
Population Declines
Population reduction means fewer food resources for all the lions and cheetahs, which leads to a decline in the predator populations.
If the two can share the resources, the ecosystem can remain stable and the two can co-exist.
biotic factors- living or once-living organisms
abiotic factors- never living chemical and physical factors in an environment
competition- a contest between individuals
What is an ecosystem?
Biotic factors- living or once living organisms
Compete for resources
Predator - Prey relationships
Abiotic factors- non living parts that affect its survival growth.
Temperature influences the most.
Niche
function of an organism in an ecosystem
role of an organism in the community
how it satisfies its need for food and protection
Competition
The number of niches in an ecosystem is limited. In a certain area, two populations may try to occupy the same niche
When they compete with one another
The one that is better adapted for the niche will win and will crowd out the other population.
In a stable community, two organisms cannot occupy the same niche
Population Declines
Population reduction means fewer food resources for all the lions and cheetahs, which leads to a decline in the predator populations.
If the two can share the resources, the ecosystem can remain stable and the two can co-exist.