NSCI 1413 Lecture Notes - Lecture 2: Carbon Fixation, Nitrogen Cycle, Eutrophication
6 May 2017
School
Department
Course
Professor
Document Summary
Population: a group of individuals of one species living in one area who have the ability of interbreeding and interacting w/ Community: consists of all the organisms living in one area. Ecosystem: includes all the organisms in a given area as well as the abiotic factors w/ which they interact. Abiotic factors: nonliving things that include temperature, water, sunlight, wind, rocks, and soil. Size: the total number of individuals in a population; represented by n. Density: the number of individuals per unit area or volume. Mark and recapture: a sampling technique where organisms are captured, tagged, and then released; later, the same process is repeated and the following formula is used for the collected data. N = (# of marked in first catch)(total # in second catch) 50 zebra mussels are captured, tagged, and released; one week later, 100 zebra mussels are captured and. 10 have markings already; using the formula, the total population would be ~500 zebra mussels.
