BIOL 2060 Lecture : Ecology 2060 Lecture 2.docx
Document Summary
What is ecology and how do we study it: make an observation= species occurs in one place but not in another e. g. red kangaroos are most abundant in one location and absent in another, propose a hypothesis e. g. kangaroos are absent in one location because the climate is too cool + wet, make a prediction= specific implication of a hypothesis for science to advance, predictions must be testable e. g. kangaroos will be less abundant at cool + wet sites, collect data; sampling. We sample because we cannot find count, and or measure all of the individuals: random sampling; samples at random locations (not biased but logistically difficult, systematic sampling; sampled at regular intervals (simple but likely to be representative, haphazard or convenience sampling: from arbitrary or convenient locations (simple, biased) example of clicker question:
