Evolution_-_Domestication

Evolution_-_Domestication - Animal Behavior Tinbergens Four...

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9/30/2010 1 Animal Behavior Tinbergen’s Four Questions (Domestication) Why does an animal do that? Photo courtesy of Gail Patricel i Why does an animal do that? Niko Tinbergen (1963) – 4 Questions approaches to unraveling animal behavior unique due to almost universal applicability
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9/30/2010 2 The Four Questions Evolution changes in behavior in response to natural selection over Causation mechanisms (internal & external) that bring out the behavior evolutionary time Adaptive significance impact of the behavior on survival &/or reproductive success Ontogeny how the behavior is formed during development Animal Welfare and Evolution Emphasis on Domestication
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9/30/2010 3 Animal welfare and evolution • premise: behavior is adaptive and shaped by evolutionary pressures • what happens to behavior during domestication? www.nwf.org/ yel owstone/images/wolf.jpg www.arches.uga.edu/ ~vandelg/crested.jpg What is domestication? • process of adaptation to humans and captive environments – result of interplay btwn genetic changes across generations AND environmental across generations AND environmental stimulation and experiences during development of the animal What is domestication? Domestication
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9/30/2010 4 What is domestication? • open-ended process ex. change existing dog breeds and create new ones Horand von Grafath Beowulf Zamp vom Thermodos •Aussie bulldog •Catahoula bulldog •ca de bou •victorian bulldog •valley bulldog What is domestication? open ended process
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Evolution_-_Domestication - Animal Behavior Tinbergens Four...

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