BIOA02H3 : Lec02 - Animal Behavior.docx

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BIOA02H3 Full Course Notes
43
BIOA02H3 Full Course Notes
Verified Note
43 documents

Document Summary

What are the major types of behavior. When animals interact, they exchange information i. e. animals communicate communication = the reception of and response to signals signal = causes a change in another animal"s behavior. Animals communicate using signals: acoustical (auditory, visual, chemical (olfactory, electrical tactile. Have species-species songs used in territorial displays and courtship. Must hear song when they are nestlings, even though they do not sing it until mature. Behavioral decisions: made in variable environments, based on a cost-benefit approach. Assume animal has a limited amount of energy for its activities, it cannot perform behaviors if energetic cost is greater than benefits. Benefits lead to improved survival / reproductive success. Costs have three components: energetic cost. Difference in energy expended if resting vs energy expended in performing behavior: risk cost. Increased chance of being injured or killed as a result of the behavior: opportunity cost. Animals must make many decisions about: where to live.