LIFESCI 2D03 Chapter Notes - Chapter 3: Behaviorism, Mecha, Greylag Goose
8 Feb 2016
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3. 1 scientists study both the proximate mechanisms that generate behavior and the ultimate reasons why the behavior evolved. Initiated by season changes in day length, trigger hormonal responses that lead to increase feeding and fat deposition and onset of long distance movement. Some species require learning while others don"t, meaning genetically determined. Allows them to track resources and avoid places where resource availability is greatly limited in some seasons, promotes survival. Researchers examine migration patterns differences among different population of species or between closely related species. Answers for 1 and 2 are called proximate explanations, focus on understanding. Explanation incorporate studies of genetics, sensory systems, neurons, hormones, and learning analysis. Answers to 3 and 4 are ultimate explanations, require evolutionary reason and. 3. 2 researches use observation, experiment and comparative methods to study behaviour. Usually use more than one method in research. Observational method- observe and record behavior of an organism without manipulation environment of animal.
