Week Two: Biol 116: Behavioral Ecology
Week Two: Biol 116: Behavioral Ecology BIOL 116 - 001
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This 3 page Class Notes was uploaded by Laura Notetaker on Friday September 11, 2015. The Class Notes belongs to BIOL 116 - 001 at State University of New York at Potsdam taught by William L Romey in Fall 2015. Since its upload, it has received 25 views. For similar materials see BEHAVIORAL ECOLOGY-LEC in Biology at State University of New York at Potsdam.
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Date Created: 09/11/15
972015 Behavioral Ecology Proximate Cause vs Ultimate Cause Proximate Ultimate HOW Why Sensory inside the body EvolutionaryAdaptive Classifv as Ultimate or Proximate 1 The reason some things taste sweet is because taste receptors at the tip of the tongue send action potential to sensory cortex of brain which causes you to feel pleasure Proximate 2 Things taste sweet because those that liked the taste in the past got fatter and left more children than those that didn t like that taste Ultimate 3 Fish join schools because it helps them to avoid predators Ultimate 4 Birds know a particular song because when they hear it at a particular age the LGN nucleus in their brain stores the signal and allows them to remember it and recreate it later Proximate Nature vs Nurture Most all behaviors are a result of the interaction of genes amp environment Nature Nurture Instinct Environment Genes Learning Development Genetics nature amp Behavior nurture Did your genes make you do it Ex Imprinting Conrad Lorenz and his Greylag Geese Methods to test if behaviors have a genetic component Common Garden Cladogram Crossfostering Twins studies Artificial Selection Genetic Manipulation Common Garden Example 1 Blackcap Warbler Migration How do the birds know which direction to migrate Brought into common area Raised the same Footprints on the plastic wrap keeping them in determine direction of travel 972015 Behavioral Ecology Example 2 Banana Slugs Garter Snake Test Preference Take inland snake eggs and coastal snake eggs and put them in a common area Raise them the same and see which snake eats the slugs Experimental Approach to Behavior Eggshell removal study gull Whelk dropping study crow Shell removal study by Tingergen Ecology of System Nesting Black Headed Gull lays eggs on sand Predator Carrion Crow QUESTION Why do black headed gulls remove egg shells from their nest son after hatching Alternative Hypotheses H1 Remove white shell so predators don t see it H2 Give nesting some room H3 To reduce the smell to predators Whelk dropping study Questions to consider Giving up time How long until bird thinks it S OK to give up Size of Whelk How far up to fly Class Demo on Whelk dropping study Calculate optimum size amp height Shell full or half full of water How many drops before it opens 91115 Environmental Impacts on Behavior Nurture Learning vs Innate 972015 Behavioral Ecology Learnind develonmental Adapt to new environment Poisoness food allergies lmmune System Down Side takes a lot of brain energy Innate instinct Knowing something super dangerous Breathing Immune System Down Side can t adapt to bad circumstances Develolomental Changes Environment influences development of life history What sex to become What kind of adult to become Sea Turtles warm eggs gt females TEMPERATURE IN WHICH THEY GROW DETERMINES SEX Bee Jobs Juvenile Hormones and royal jelly FERTILIZED bees become worker females 1 cleaning cells mushroom bodies feeding larvae feeding nestmates packing pollen foraging VVVV 2 3 4 5 Environment in the Womb Birth order determines masculinity Learning Changes Imprinting Conrad Lorenz Geese imprinting Classical conditioning PaVIOV S sawa be meat power Operant Conditioning Skinnerrats Associate Color gt Food Trial amp Error Operant Associative Learning can t learn to pair only two things Special Learning Observational Learning
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