Ecology Week 1 Class notes
Ecology Week 1 Class notes BIOL 3060
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This 2 page Class Notes was uploaded by Naomi Hampton on Thursday August 25, 2016. The Class Notes belongs to BIOL 3060 at Auburn University taught by Dr. John Feminella in Fall 2016. Since its upload, it has received 9 views. For similar materials see Principles of Ecology in Ecology at Auburn University.
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Date Created: 08/25/16
BIOL 3060-Ecology 8/16/16 Ecology: interactions between organisms and their environment “science”: investigating rational, natural concepts in the universe using the scientific method Elements of Ecology: o Characterize patterns in nature (quantify) o Studying complex interactions in nature o Understanding causal mechanisms producing the patterns you observe Scientific Method o Observe pattern o Formulate hypothesis Alternative hypothesis (H a Null hypothesis (H O o Generate prediction-if true, supports alternative hypothesis o Test H w/Oadditional data (testing prediction) If prediction true, rejectOH If prediction false, do not reject H O Generate new prediction w/acquired info Ex: H astream velocity is important in explaining snail density H Ono effect of velocity or relationship on snails Trying to find truth If not using scientific method, just describing 8/18/16 Ecological Approaches- o Descriptive-describing, observing, reporting, characterizing Questions that relate to “what”/”how many”, patterns o Functional-“why” does this pattern occur, processes (Contemporary) o Evolutionary-role of historical factors Hypothesis: process that could have produced a pattern Prediction: (in terms of a ) specific condition, that if true, suppoats H o Ex: H a Habitat diversity influences fish diversity Fish H o Habitat diversity doesn’t influence fish diversity Diversity Prediction: Positive relationship b/t fish & habitat diversity Habitat Diversity Logic: o Deductive reasoning-general information and applying it to a specific case o Inductive Reasoning-information from specific case and applying it broadly o Deductive reasoning can give rise to true & false predictions (ex. Geocentrism) Experiment: manipulation of some variable (factor) while holding all other variables constant o Ingredients: Treatment (2-low water, high water) Control-unmanipulated treatment Response variable Replication + Statistical Analysis Growth (response) 0 L H WateringSchedule (treatment) Ecology conducted in 3 levels: o Theoretical: usually mathematical modeling o Empirical observations (data) Lab observations Field observations Types of Ecological Research: o Basic-heuristic value (curiosity value) o Applied-benefit to society
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