Transcript rudy ibarra

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Average rainfall: 29.5 inches
Average Temperatures in Summer: 82.4° F
Average Temperatures in Winter: 42.8°F
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Deciduous forests can be found in the eastern half of North America, and the middle of
Europe. There are many deciduous forests in Asia. Some of the major areas that they are in
are southwest Russia, Japan, and eastern China. South America has two big areas of
deciduous forests in southern Chile and Middle East coast of Paraguay. There are deciduous
forests located in New Zealand, and southeastern Australia
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The temperate deciduous has 4 changing seasons The longer days and warmer weather of
spring signal to the trees to grow new leaves and begin photosynthesis again. To prepare for
winter, deciduous trees and plants become dormant. They lose their leaves and seal the
places where leaves were attached with a protective covering called a leaf scar. Actually,
these colors were present in the leaves all year long, but had been hidden by the green
pigment of the leaves causing them to change into the beautiful red, yellow
and orange leaf colors of FALL
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In summer, THEIR BROAD GREEN LEAVES HELP CAPTURE SUNLIGHT NEEDED TO MAKE FOOD THROUGH
PHOTOSYNTHESIS.
As temperatures drop, the tree cuts off the supply of water to the leaves and seals off the area between
the leaf stem and the tree trunk. With LIMITED SUNLIGHT AND WATER, THE LEAVES ARE UNABLE TO
CONTINUE PRODUCING CHLOROPHYLL (GREEN PIGMENT IN LEAVES) CAUSING THEM TO CHANGE INTO
THE BEAUTIFUL RED, YELLOW AND ORANGE LEAF COLORS OF fall.
In winter, it is too cold for the trees to protect their leaves from freezing, so they simply loose them and
seal up the places where the leaves attach to the branch. Losing THEIR LEAVES HELPS TREES TO
CONSERVE WATER LOSS THROUGH TRANSPIRATION. (Dried LEAVES CONTINUE TO HANG ON THE
BRANCHES OF SOME DECIDUOUS TREES UNTIL THE NEW LEAVES COME OUT.)
Before THE LEAVES DIE, SOME OF THE FOOD MATERIAL THEY CONTAIN IS DRAWN BACK INTO THE TWIGS
AND BRANCHES WHERE IT IS STORED AND USED THE FOLLOWING SPRING.
The warmer temperatures of spring signal to the trees that they can grow new leaves again, and restart
the cycle
A GREAT VARIETY OF BIRDS MIGRATE TO WARMER PLACES WHERE THEY CAN FIND FOOD MORE EASILY
THESE BIRDS ALSO HAVE ADAPTED TO THESE FLIGHT CONDITIONS BY FLYING IN WAYS ONLY THE LEADER
BIRD FATIGUES IN A V shape.
Some MAMMALS (Bears) hibernate during the cold winter months.
Squirrels, chipmunks store food (such as nuts and seeds) in the ground, under fallen leaves, or in tree
hollows for use during the cold winters when food is scarce. These SMALL MAMMALS HAVE FUR TO HELP
GET THROUGH THE COLD MONTHS WHILE HIBERNATING
http://www.cotf.edu/ete/modules/msese/earthsysflr/climo5.html, (June '00)
www.answers.com/
http://www.mbgnet.net/sets/temp/seasons.html
rrms-biomes.tripod.com/id5.html