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