quadrat

(noun)

a square area, marked with boundaries for studying the population size and density of plants and sessile animals

Related Terms

  • population density
  • mark and recapture

Examples of quadrat in the following topics:

  • Population Size and Density

    • Scientists usually estimate the populations of sessile or slow-moving organisms with the quadrat method .
    • A quadrat is a square that encloses an area within a habitat.
    • After they place the quadrats, researchers count the number of individuals that lie within the quadrat boundaries.
    • For sampling daffodils, a 1 m2 quadrat could be appropriate.
    • Scientist uses a quadrat to measure plant population size and density
  • Characteristics of Mammals

    • In mammals, the dentary bone joins the skull at the squamosal bone, while in other vertebrates, the quadrate bone of the jaw joins with the articular bone of the skull.
    • The malleus originated from the articular bone, whereas the incus originated from the quadrate bone.
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