Unit 2: The Deciduous Forest

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Unit 2 The Deciduous Forest
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A. There are 3 Biomes in Minn

• Prairie
• Deciduous Forest
• 3. Coniferous Forest

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B. Deciduous Forestmain characteristics

• 1. Cold to moderate winters, warm summers,
  fertile soils.

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B. Deciduous Forest main characteristics

• Cold to moderate
• Dominant plants are
• broadleaf deciduous

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• Photosynthesis
• review equation
• b. Occurs in the chloroplast of the cells

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C. Seasons in the forest

• Fall. As the weather gets colder, photosynthesis
  shuts down.
• a. Photosynthesis review

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• b. Occurs in the chloroplast of the cells
• c. The chloroplasts contain chlorophyll
• (a pigment) which absorbs light.

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• The nuclear reactions
• (fusion) that occur deep within the sun,
• 92 million miles away,
• are responsible for all life on earth through
  the generation and emission of the broad spectrum
  of wavelengths in sunlight.

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• About 2 percent of the radiation we receive from
  the sun supports the process of photosynthesis

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• c. The autumn months mark the transition period
  of the northern hemispheres tilt away from the
  sun

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• c.
• 1.the changing angle of sunlight results in
  shorter days and cooler nights. This triggers
  changes in living systems.

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• c.
• 1.
• 2. cells die at the base of each leaf stalk, a
  layer of cork forms a barrier that keeps water
  and nutrients from travelling to the leaf

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• 3. Chlorophyll in the leaves start to break
  down, exposing other pigments, xanthophylls and
  cartonoids, yellow and orange

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• 4. Eventually the leaf detaches. Without its
  leaves the tree is less likely to suffer damages
  from freezing temps and strong winds, but
  photosynthesis comes to a halt.

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Buckthorn Removal

• 10 pt. participation assignment.
• Go to Oak Forest Area.
• Work with a partner
• (groups of 2-3)
• MUST be someone in your group.

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• Every group gets a garbage bag.
• Your assignment Fill it with buckthorn
• (begin with small stuffpull out by roots)

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• Checking attendence outside,
• Checking you off at the dumpster.

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Maybe with the Buckthorn gone some of these
flowers will comeback!
Indian Pipe
Spring Beauty
Trillium
Starflower
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D. Animals

• Mammals
• White-tailed Deer.
• A species of great concern.
• There is probably more concern for deer than any
  other
• wild Minnesota mammal

Totem meaning increased perception (externally
and internally), gentleness, Child connection,
protection
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• An object of aesthetic beauty, a potential
  danger on some highways, a pest to some farmers
  and orchardists, an economic asset to tourist and
  sporting good businesses, a problem herbivore to
  some restoration projects, and our major big game
  species

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• White-tailed deer.
• a. today present in every county
• b. usually most abundant in pioneer and early
  stages of forest succession

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• a.
• b. usually most abundant in pioneer and early
  stages of forest succession
• c. up to 1860 deer were very rare in the
  coniferous forest

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• d. herbivores they eat leaves, trees, buds ,
  shrubs
• e. Yearly cycle
• 1. Winter. 18 inches of snow, they move to a
  yarding area
• 2. Spring. Deer become more active.

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• Yearly cycle
• 2. Spring.
• a. new antler
• growth begins.
• Antlers may
• elongate at the
• astounding rate
• of more than half an
• inch per day.