Essay on A Study On Pre Lab Questions

1906 Words Oct 20th, 2015 null Page
Pre-Lab Questions
1. A population is a group of the same species that live in the same area and sometimes compete or can mutually benefit one another. A group of organisms will only be considered a population if they live in the same area in space and time. N is the true population size for a given group of organisms. This number is unlikely to be completely known. Whereas N hat is an estimate of population size.
2. There are two methods of sampling, direct and indirect. Direct sampling is an actual count of a population in a given area and is generally not easily feasible. Whereas indirect sampling is an estimate with subsamples of a population in a given area. This requires some extrapolation in order to estimate the total population, generally this method is chosen because it is more cost and time effective.
3. Estimating a deer population (N) is considerably different than estimating a deer mouse population (N). Considering the fact that the home range for a deer population is much larger, the deer are physically larger, and would be very difficult to avoid double counting. The more space needed to be covered in the study the likelihood of double counting would be very high. Utilizing methods where a large area of land can be covered in a short period of time would be beneficial for estimating the population number such as using a helicopter and counting all of the deer observable. Whereas a deer mouse is significantly smaller, has a smaller home range, and lives…

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