POPULATION ECOLOGY

Factors affecting population distribution of plants are

• Temperature

• Water

• Mineral salt content

• Breeding site

Factors affecting population distribution of animal are

• Temperature

• Water

• food supply

• pH

(a)   condition is caused

by uneven distribution

of resources in an area.

(a)   Organisms are distributed in a free pattern in an area.

Random distribution caused by

• uneven distribution

  of resources in an area.

• individual

  competes for limited

  resources in an area

• have little interaction among individuals.

(a)   Organisms are

distributed all over an

inhabited area.

Uniform organisms are caused by

• uneven distribution

  of resources in an area.

• species that have little interaction among individuals.

• individual

  competes for limited

  resources in an area.

Clumped organisms are caused by

• uneven distribution

  of resources in an area.

• species that have little interaction among individuals.

• individual

  competes for limited

  resources in an area.

The number of organisms present in a population is called as

• population area

• population quadrat

• population size

• population density

The number of individuals of a species per unit area of a habitat. is called as

• population area

• population quadrat

• population size

• population density