freshwater biome climate

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					                 Freshwater Biome
 A) CLIMATE
  1) Tropical to low temperate climate zones.
  2) Summer-22C, 71.6F
     Winter-4C, 39.2F
  3) the water is cool and so is the surrounding area. So the
  temperature in that area has to be warm to hot to make the
  water that way.
  4) Average Water Rainfall; 10- 80 inches per year. 25.4 –
  203 centimeters per year.
  5) Freshwater Biomes caontain very little salt.


  B) ABIOTIC FACTORS
    1.) Rainfall is a major factor in the increase of the population.
If there is not enough rain, the aquatic animals’ habitat would
dry up. The more rain in an area, the more moisture there will
be. With more moisture, there is more bacteria and its easier for
plants to grow
    2.) Temperature is another big thing that needs to be just
right. In the freshwater biome, if the temperature is too cold,
the animals will not be able to survive, there for, the whole
group of animals that feed on those animals would die too.
    3.) Land features are also critical. They directly influence the
rainfall and tempature.


 C) ORGANISMS
   1.) Producers: Organisms that produce food for others. Algae,
       kelp, cattails are producers because animals eat them and
       it gives them energy.
   2.) Consumer: organism that feeds off other animals.
   Krill, mollusks, fish.
   3.) Decomposer: attain their energy by breaking down dead
organic material. Worms, bacteria, mold.
Common Plants and Animals found in Freshwater Wetlands:
Flies, water bugs, crayfish, snails, leeches, frogs, Bass,
minnows, snakes, turtles, cattail, yellow lotus,

D) FOOD WEB




E) BIOTIC FACTORS
      1.) Predators. They hunt the smaller animals. If there is
      less prey than animals, it could cause big problems.
      2.) Competition, if too many species eat the same thing
      there will be less food for each. Starvation is a big thing
      that determines the population.
F) COMPETITION
      1.) When two species of fish need the same sorts of food,
      there is not always enough to go around, this could cause
      competition.
      2.) When the same two fish species want the same place
      to lay eggs, they may also fight over that as well.
G.) ENVIRONMENTAL THREATS
         1.) Humans are always cutting down habitats and
         putting harmful gasses into the air. This is killing the
         animals.
         2.) Pollution; which is the harmful gasses. Pollution
         gets into the water and kills the fish which starts a chain
         reaction of death.


H) PICTURES




                 A lake at Acadia National Park, Maine.
     http://www.ucmp.berkeley.edu/exhibits/biomes/freshwater.php
                      A stream in Idaho.
http://www.forestryimages.org/browse/detail.cfm?imgnum=1450
                             115

				
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posted:4/8/2009
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