Quadrat method for population density
Ecology field techniques · Biology
Study notes
School field trip: throwing a 1m × 1m quadrat on the school lawn, counting grass tufts inside — your first population census. Forest officers estimate tiger-prey density with quadrats and transects — management decisions from squares. Weed scientists count weeds per quadrat to decide herbicide dose — the farm application. Marine biologists count barnacles in rock-pool quadrats — same tool, different shore.