Trees Plus ...
Forests are more than just trees. But the type of trees have a
big influence on what else lives there. For instance, trees that
lose their leaves every year, such as maples,
affect the life cycles of other plants that live
under them. And trees that don't lose their leaves, such as the
trees of the northern forest discourage
most plants from trying to grow in their shade.
The type of forest that will grow in a particular area depends on:
- amount of precipitation
- temperature of the region
- soil quality and depth
- drainage
A different type of forest, the so-called Acadian forest,
has developed on the northeast coast of North America. It differs from that
found in similar areas away from the Atlantic coast due to different temperature
and moisture patterns.
For similar reasons, temperate rain forests have developed on the northwest coast of North America.
The Carolinian region of Canada is the northern
extent of a vegetation zone that extends south to the Carolinas.
Besides creating new opportunities for plants, forests also provide shelter
and food for animals. Trees and other plants have also needed to develop ways
to protect themselves against predators: other living organisms that consume
their leaves, bark and seeds to take advantage of the solar energy captured by
the plant. Other plants and animals recycle the energy stored in dead organic
material such as fallen leaves or trees which are no longer living.
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