-Biomes are large areas that have characteristic climax communities.  Aquatic biomes may be marine or freshwater.  Estuaries occur at the boudaries of marine and freshwater biomes.  Approx. 3/4 of the Earth's surface is covered by aquatic biomes, and the vast majoity of these are marine (ocean).

 

-Terrestrial biomes include tundra, taiga, desert, grassland, temperate deciduous forest, and tropical rain forest.  Two climatic factors, temperature and precipitation, are the major limiting factors for the formation of terrestrial biomes.

 

Section 3.2-

Define- aphotic zone-

          - biome-

          - desert-

          - estuary-

          - grassland-

          - intertidal zone-

          - permafrost-

          - photic zone-

          - plankton-

          - taiga-

          - temperate forest-

          - tropical rain forest-

          - tundra-

3.2 Outline-

Aquatic Biomes: Life in the Water

 -Marine Biomes- saltwater

  -photic zone- area of ocean where sunlight can penetrate

  -aphotic zone- area of ocean where sunlight can't penetrate

  -estuary- costal body of water where salt and fresh water mix.  Partially surrounded by land, and is a "nursery" for baby aquatic animals.

  -water also called "brackish"

 -The Effects of the tides-

  -intertidal zone- place where water is during high tide, and isn't during low tide

   -clams, crabs, starfish, snails, etc. live here-

   -plankton- small marine animals and plants.  bottom of the food chain in ocean-

   -ocean bottom less affected by waves and tides

  -in the dark- 

   -90 % of the ocean is more than 1 km. deep-

 -Freshwater Biomes

  -include lakes, rivers, streams, ponds, etc...-

 -biomes on land-

 -7 in all-

 -frozen year round-

 -small animals little vegetation-

 -permafrost- permanently frozen ground under top soil-

 -also called northern coniferous-

 -big and little animals/ herbivores and carnivores-

 -arid region with sparse to no vegetation or animals-

 -largest communities-

 -covered with grass and other small plants-

 -biggest biome/ mainly in africa-

-temperate forest-

 -dominated by broad leaf plants that lose their leaves annually-

 -70-150 cm of rain-

 -warm climate with loads and loads of rain-

 -lush vegetation-

 - most animal species than any other-

 -constantly being destroyed-