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Animal Behavior Chapter 33
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Behavior-the way an animal acts
-is genetic -is important to survival -should be flexible (change with the environment)
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2 Important Parts: -stimulus- causes a response in an organism
-response- reaction to a stimulus Ex. stimulus-mouse moves in the grass response-owl attacks mouse
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Innate Behavior -is an instinct, non-learned -inborn
-is built into an animal’s nervous system -does not change during an animal’s lifetime Ex. nursing at birth, web building, nest building, courting, crying, coughing
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Reflex A simple, automatic response to a stimulus that involves no conscious control (touching a hot object)
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Fight or Flight Response
Mobilizes the body for greater activity
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Communication Passing information from one animal to another
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Why communicate? Choosing mates/courtship
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Locate food
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Warn of danger
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How to communicate: Visually Colorful bodies Sound
Chemical signals (pheromones) Electrical signals
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Special Behaviors Circadian Rhythms:
-Biological processes that occur over a 24 hour period “Internal biological clock” ex. awake during the day, asleep at night -shift workers confuse their circadian rhythms, jet lag
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Reproduction Courting behaviors
(ex. singing in birds, croaking in frogs, spreading feathers in peacocks, neck flapping in lizards, chemicals (pheromones…..odors))
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Finding Food Ex. “Talking” / “Dancing” in bees, spiders building webs)
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Protection Ex. wolves living in packs, buffalo living in herds, adults surround young
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Migration Instinctive, seasonal movement of animals
-controlled by day length -climate changes, mating, food -navigate by sun and stars, geographic clues, Earth’s magnetic field
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Hibernation Period of inactivity during cold winter months
-body temperature drops -oxygen consumption decreases -breathing rates decline -it conserves energy -squirrels, chipmunks
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Estivation State of reduced metabolism that occurs in animals living in conditions of intense heat -desert animals
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Territory A physical space an animal defends against other members of its species Ex. -selecting an appropriate territory has survival value
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Aggressive Behavior Used to intimidate another animal of the same species, usually does not end in death Ex. bird calling, teeth baring, growling)
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Parental Behavior Adults care for young, providing food, protection, and warmth. Very important for the survival of small litters
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Learned Behavior -must be taught -must be practiced -can be changed
-accomplished through experiences Ex. writing, driving
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Habituation Decrease in a response to a stimulus
(ex. Birds with shadows overhead, horses)
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Classical Conditioning
Making a mental connection between a stimulus and a good or bad event Ex. Using can food opener to feed dogs, raising hand to hit someone….they flinch) Pavlov’s dogs
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Operant Conditioning Trial and error. Behave a certain way to receive a reward Ex. Bird eats a colored butterfly, and it gets sick….it won’t eat that kind of butterfly again
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Insight Learning Applying previous knowledge (reasoning) to a new situation Ex. Driver’s education…..driving many different cars, then driving a 4wheeler or jet ski, learning math in school) -primates do this!
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Imprinting An animal, at a critical time of its life, forms a social attachment to another object Ex. Duckling following its mother
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Only humans use language.
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