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Animal Behavior Week 1

by: Rebecca J Elting

Animal Behavior Week 1 EEOB 3420

Rebecca J Elting
GPA 3.4
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About this Document

these notes cover week one of in class notes
Animal behavior
Dr. Jackie
Class Notes
behavior, animal, EEOB




Popular in Animal behavior

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This 2 page Class Notes was uploaded by Rebecca J Elting on Saturday February 13, 2016. The Class Notes belongs to EEOB 3420 at Ohio State University taught by Dr. Jackie in Winter 2016. Since its upload, it has received 31 views. For similar materials see Animal behavior in Biological Sciences at Ohio State University.

Similar to EEOB 3420 at OSU

Popular in Biological Sciences


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Date Created: 02/13/16
Animal Behavior notes week 1 Adaptation: a hereditary trait that has spread or is spreading by natural selection and has replaced or is replacing any alternative frats in the species Example: the Ginkgo and testosterone experiment  ­traits are not perfectly adaptive because of constraints…. 1. Failure of appropriate mutations to occur  2. Pleiotropy: occurs when a gene has more than one developmental effect, some of  which may  be positive some may be negative. 3. Coevolution Adaptations Hypotheses  1. Comparative approach  Parsimony­ most simplest is the correct path, it’s a general trend Example: mobbing behavior (colony attacks the attacker) 2. Game theory – the optimal behavior changes depending on what others are doing Example­ penguins 3. Cost/Benefit theory Does the cost to make the trait out weight the benefits  a. Optimality theory­ same as cost benefit, but multiple traits are considered.    All these methods can be applied to any behavior!!!!!  Optimal foraging theory­ making foraging decisions based on caloric intake. ­The time spent foraging vs. calories gained from the meal ­abiotic factors can influence this behavior such as the weather, terrain and disease and  even how much food is available. ­biotic factors can influence it too such as predators or if there is a dominance hierarchy. Ideal Free distribution­ predicts what animals should do when crossing between alternative  habitats of different quality in the face of competition for space and food.  1. Uniform: includes many shore birds; organisms are equal distant from each other in every direction 2. Random: occurs when there is no social interaction and there is little competition for  resources; distribution is scattered without a pattern. 3. Clumped: includes many mating bird groups and mating amphibians; occurs when  individuals are together in small groups scattered throughout. Assumptions about all groups: individuals move to evaluate quality and settle where  reproductive success can be maximized. ­animals must be capable of moving from one location to another, so coral reefs do not  count, sea anemones do not count.


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