POPULATION STUDIES BY SAMPLING METHOD

POPULATION STUDIES BY SAMPLING MOTHOD:

Definition of population:

Population is collection of similar organizes living in a community  or given habitat .

DOMINANCE:

They are those species of organism that appear more frequently .They exert a major controlling effect on the other member of the community

Population density:

It is the member of a particular organism in a relationship to a unit quadrate area, ie

Total population

Area of habit:

Population frequently:

it is how many times an organism occur within a given area.

Population Cover:

it is how much space organism occupies in a given area expected in percentage.

Population growth rate:

this is the net result of natality and mortality in the habitat

Factors affecting population:

  1. Natality b. Natural disasters c. Availability of food

Method of collection species

  1. Quadrant
  2. Transect
  3. Capture and re- capture method

Instrument for collecting mobile spaceman

  1. poorter insect net c. plankton d. wicker

Instrument for collecting

soil organism

  1. Tull green
  2. baemann funnel
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