Download Animal Behavior

Animal Behavior
• Chapter 51 provides text to support BIG IDEA 2:
Biological systems utilize free energy and molecular
building blocks to grow, to reproduce, and to maintain
dynamic homeostasis.
BIG IDEAS
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2.C.2
2.D.2
2.D.3
2.E.2
2.E.3
3.D.2
3.E.1
4.B.2
Essential Knowledges
Learning Objective 3.40
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How do organisms use free energy to maintain organization,
growth, and reproduction?
How do changes in free energy available to organisms result in
changes in population size and disruptions to an ecosystem?
How are biological systems from cells to organisms to populations,
communities, and ecosystems affected by complex biotic and
abiotic interactions involving exchange of matter and free energy?
In what ways do communities interact within their environments
that result in the movement of matter and energy?
In what ways do interactions between and within populations
influence patterns of species distribution and amount of local and
global ecosystem changes over time?
How does the diversity of a species within an ecosystem influence
the stability of the ecosystem?
And the end of the ecology unit, you
should be able to answer these
questions.
• Not deterministic
• Behaviors play central roles in their interactions with each
other and their environments
• Adjustments of behavior are often the most visible
responses to environmental change
Behavior is controlled by
the nervous system
• When an animal engages in behaviors
• It s the animals nervous system that activates and
coordinates these behaviors
Behavior is controlled by
the nervous system
• Particular types of behavior depend on the function of
particular brain regions.
• Negative Ex.
• damage to Broca’s region in human brains
• When a person speaks, specific brain regions show
evidence of increased metabolism
• Gives reason to believe that there is a neural basis for complex
behaviors involved in human communication
Many types of behavior point
to a neural basis of behavior
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Highly stereotyped animal behaviors
Expressed by animals without prior learning
Often resistant to modification by learning
Point to control by the nervous system
• Sometimes elaborate
• Depend on solely on presence of a healthy nervous system
• Ex.
• Gull chicks
• Spiders
• Fish
Fixed Action Patterns