Mon. Tues. Wed. Thurs. Fri.

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Mon. Tues. Wed. Thurs.
Fri.
Week of Sept. 22
Indoor lab bring calculator
Week of Sept. 29
Oct. 3 Exam 1
Wet outdoor lab wear closed-toed shoes
Week of Oct. 6
Indoor lab bring calculator
Week of Oct. 13
No labs Fall Break
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Outline for organisms
Introduction What do organisms need to survive
and reproduce? How do organisms cope with
variability?
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Niche ecological role of a species in the
community - determines the range of
conditions an organism can tolerate, how it
feeds, how it escapes enemies, etc. - no two
species have the same niche
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Habitat the physical setting in which an
organism lives
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Outline for organisms
Introduction What do organisms need to survive
and reproduce? How do organisms cope with
variability?
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Fig. 9.4
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How do organisms cope with variability?
behavioral adaptations physiological
adaptations developmental adaptations
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behavioral - organisms can alter their behavior
to stay within range of environmental conditions
required to survive and reproduce
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preferred temp.
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physiological - the physiology of an organism can
change such that the range of environmental
conditions it can tolerate changes -
reversible - acclimation
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Figure 9.9
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Figure 9.10
blue grown at 20 C orange grown at 40 C
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How do organisms cope with variability?
behavioral adaptations physiological
adaptations developmental adaptations
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developmental - particular traits of an organism
may be affected by the environmental conditions
under which it develops - irreversible
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Surviving extreme conditions For example, long,
cold winters or long, very dry seasons
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Outline for organisms

• Introduction and review of adaptation
• What do organisms need to survive
• and reproduce?
• How do organisms cope with variability?
• example of variability
• in food resources

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optimal foraging theory organisms will forage
in a way that maximizes energy intake per time
while minimizing risk In lab had to forage in
way that maximized bean capture and minimized
getting tagged by predator
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Figure 9.16
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Figure 9.18
Do starlings forage optimally?
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Figure 9.19
Should an organism risk predation to forage in an
area with a lot of food?