Population Density
4
YOU NEED A CALCULATOR!!!!! Start-Up: What is the biological level smaller than a community? How is it defined?
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Transcript of Population Density
YOU NEED A CALCULATOR!!!!!Start-Up: What is the biological level smaller than a community? How is it defined?
Characteristics of Populations
Population – group of individuals of a single species that live in the
same general area – rely on the same resources & face similar
challenges
Population size = total number of individuals
Population density= number per unit area
Sampling Techniques to Estimate Population Density & Size
1. Quadrats
2. Indirect Counting
3. Mark-recapture method
Total population = (# in first capture)(# in second capture) # of marked animals recaptured