Ecological Sampling
Quadrat Method for Estimating Population Density
Use the quadrat method to estimate population density of different plant species in a field. Click on quadrats to sample them and calculate the estimated population for each species.
Samples: 0
Species A (Red)
0
0/m²
Species B (Blue)
0
0/m²
Species C (Green)
0
0/m²
Total Density
0/m²
Observation:
Click on quadrats to sample the field. The results will show estimated population densities based on your samples.
Quadrat Sampling Method
1. Random Sampling:
Ecologists use randomly placed quadrats to avoid bias when estimating population sizes in large areas.
2. Population Density:
Calculated as: (Total counted / Number of quadrats) × (Total area / Quadrat area). This estimates organisms per unit area.
3. Species Distribution:
Different distribution patterns (random, uniform, clustered) affect sampling accuracy and required sample size.
