Population Ecology

Biology

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Population ecology

A branch of ecology that studies the interactions of a population with its surrounding.

Factors affecting population distribution of plants:

Temperature, water, light, pH soil & mineral salt content.

Factors affecting population distribution of animals:

Temperature, water, breeding site & food supply.

Clumped: Clumped organisms form separated groups & cause uneven resource distribution.

Random: Organisms are distributed in a free pattern in an area.

Uniform: Organisms are distributed all over an inhabited area.

Population size

The number of organisms present in a population

Population density

The number of individuals of a species per unit area of a habitat

Frequency

Probability to get an individual of any plant species in every quadrat.

Coverage percentage

The percentage of the soil surface covered by the plants

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