Transcript Behavior Timing and Coordination.ppt

Behavioral Ecology
Big Idea 2E: Many biological processes involved in
growth, reproduction, and homeostasis include
temporal regulation and coordination
Essential Knowledge
• 2E3: Timing and coordination of behavior
are regulated by various mechanisms and
are important in natural selection.
Ethology
• Science of studying animal
behavior
Orgs. can act on info and
communicate it to others
Can do this
through…
• Innate Behaviors: behaviors that are
inherited.
Or through…
• Learned Behaviors: Behaviors that are
learned through interactions w/ the env.
and other orgs.
Survival!
• Is dependent upon an orgs ability to
respond to info and communicate 
natural selection
Ex: Evolution of Phototropism
• This response allows plants to move w/ sun
to gain maximum exposure to light for PS.
Ex: Evolution of Photoperiodism
• Changes in length of night regulates
flowering and preparation of winter.
Behaviors are Triggered
by Environmental Cues
• Necessary for reproduction, natural
selection, and survival.
What is the environmental cue
here to start this behavior?
Estivation
What do I
want to get
away
from?
• A hibernation behavior in which an org is
trying to escape an event in their env.
Migration
• A temporary movement; move back and forth
from a place
• Why do whales migrate? What is the cue?
Cooperative Behavior is Needed!
• Contributes to the survival of a population.
Ex: Altruism
• An animal’s behavior
decreases its fitness,
but increases fitness
for others.
• Ex: ground squirrel
gives off alarm when
sees a coyote 
warns others, but
increases its chances
of dying.
Ex: Mutualistic Relationships
• Lichens: A fungus and a photosynthetic
partner.
• Increases survival of both pops.
Lab Stuff: Kinesis
• Simple random change in activity in
response to a stimulus.
• Ex: Sow bugs: Like moist areas. When
in a moist area  slowly move so that
they don’t leave it.
Lab Stuff: Taxis
• Automatic movement to or away from a
stimulus.
• To the stimulus  positive taxis
• Away from stimulus  negative taxis
• Ex: Trout: swim upstream (food and egg
laying)