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quadrat Definition

quad·rat (kwädrət)

noun

  1. quad
  2. Ecol. a sampling plot, usually one square meter, used to study and analyze plant or animal life

Etymology: ME, var. of quadrate ()

quadrat Usage Examples

Converse of object

  • sample: Of course, sampling only one quadrat would not give you a reliable estimate of the diversity of the ground flora in the wood.
  • place: Example Daisies occurred in 15 of the 25 quadrats placed in the study area.
  • use: Practical work will involve students recording plant % cover of plant species using quadrats along a transect.
  • throw: Cones were counted in a 0.5 x 0.5 meter quadrat thrown under the canopy of pine trees.
  • make: To make a larger quadrat, purchase stock wire from an ironmonger or farm supplier.

Adjective modifier

  • random: An equivalent number of random quadrats were sampled in the top of each section.
  • permanent: Field survey consisted of establishment of 82 permanent quadrats to provide a baseline for monitoring change subsequent to the spill.
  • square: Each square on the grid represents a 2m square quadrat in the sampling square.
  • 1m: The red bars represent the % cover of the plant species in each 1m quadrat along the line.
  • fixed: They also counted nuts that fell into fixed quadrats staked into the ground.

Modifies a noun

  • size: Units: - enter here the units in which the quadrat size is expressed.
  • sampling: Vegetation recording Vegetation analysis employing quadrat sampling and line transects were conducted in the prime observed foraging locations.
  • method: Quadrat method ) should be employed, tho the steep and sometimes inaccessible nature of the terrain may impose some compromises.
  • datum: The random quadrat data is based on twice the number of samples in each section compared to the belt transect.
  • area: Once the position of the quadrat had been established, the sward composition within the quadrat area was assessed visually.
  • corner: All - the template and quadrat corners are cleared when the video is played or stepped.

Noun used with modifier

  • sample: The Puffin census was carried out by means of mapping the colony and taking sample quadrats.
  • cm: It is common to use a 50 x 50 cm quadrat, divided into 25 smaller squares.
  • point: A new optical point quadrat frame for the estimation of cover in close mown turf.
  • m2: At each survey data, a randomly chosen 1 m2 quadrat within each of the small herbivore exclosures was also surveyed.