chp50-53+review.powerpoint_wk9 - Bio 94 Discussion Mia...

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1 Bio 94 Discussion Mia Maltz [email protected] Office Hours Wed 11am-11:50am BioSci3 3013 NEXT WEEK OFFICE HOURS CHANGE: Wed 10am-10:50am BioSci3 3013
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2 ECOLOGY Questions?
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3 Chapter 50, 51, 52 ECOLOGY - Introduction to Ecology - Behavioral Ecology - Population Ecology
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4 Chapter 51 KEY CONCEPTS 1. Biologists analyze behavior at the ___________ and ____________ levels; the genetic and physiological mechanisms and how they affect fitness
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5 Chapter 51 Ch. 51 KEY CONCEPTS 1. Biologists analyze behavior at the proximate and ultimate levels--the genetic and physiological mechanisms and how they affect fitness
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6 Chapter 51 Ch. 51 KEY CONCEPTS proximate how specific gene products, neuron activity, and hormones signals cause behavior ultimate adaptive significance of behaviour, how it enables individuals to survive and reproduce
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7 For each of the following scenarios, come up with a proximal and ultimate cause for each of the behaviors given below: a) Your dog prefers to sleep in your bed at night. Proximal : Ultimate : 7
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8 For each of the following scenarios, come up with a proximal and ultimate cause for each of the behaviors given below: a) Your dog prefers to sleep in your bed at night. Proximal : Dogs are social and want to be close to the pack/family. They find space on your bed to ensure their proximity Ultimate : Dogs that live with packs are more likely to survive than on their own. 8
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9 For each of the following scenarios, come up with a proximal and ultimate cause for each of the behaviors given below: When a new male lion takes over a pride, he will kill the cubs of the previous dominant male. Proximal : Ultimate : 9
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1 0 For each of the following scenarios, come up with a proximal and ultimate cause for each of the behaviors given below: When a new male lion takes over a pride, he will kill the cubs of the previous dominant male. Proximal : Senses – smells or sees – unrelated cubs and kills them . Ultimate : Wants to increase his own genetic representation in the pride and reduce that of competitors. 10
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11 Chapter 51 Ch. 51 KEY CONCEPTS 2. Individuals can behave in a wide range of ways; which behavior depends on current conditions
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12 Chapter 51 Ch. 51 KEY CONCEPTS 2. Individuals can behave in a wide range of ways; which behavior depends on current conditions Generally, animals behave in a way that maximizes their fitness under current conditions
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13 Chapter 51 Ch. 51 KEY CONCEPTS 3. Foraging patterns may vary with genotype; foraging decisions maximize energy ______ and minimize __________
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14 Chapter 51 Ch. 51 KEY CONCEPTS 3. Foraging patterns may vary with genotype; foraging decisions maximize energy gain and minimize costs
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15 Chapter 51 Ch. 51 KEY CONCEPTS 4. Sexual behavior is affected by levels of sex hormones; females choose mates that provide good alleles and needed resources
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16 Chapter 51 Ch. 51 KEY CONCEPTS 5. Animals navigate using an array of cues; the cost of migration can be offset by benefits in food availability
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17 Chapter 51 Ch. 51 KEY CONCEPTS 6. Animals communicate with movements, odors, or other stimuli; communication can be honest or deceitful
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18 Ch. 51 KEY CONCEPTS 7. Individuals that behave _______________ are usually helping relatives or individuals that help them in return
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