Biomes / Aquatic Ecosystems

" Nothing like the smell of DYNAMITE in the morning "

Biomes: - Large terrestrial regions on earth with similar climate, soil, and life forms.

*Tundra -

          Permafrost - Permanently frozen ground year round

*Taiga - Covers 11 % of earths land - 1/3 of all the trees (not species of trees) on earth.

*Grassland -

*Temperate Deciduous Forest -

          Deciduous - Trees with broad leaves that loose their leaves in the winter.

*Tropical Rain Forest - Most productive biome on earth.

*Desert - Least productive biome on earth.

          Allelopathy - Release of toxins by plants (leaves and roots) to inhibit growth of other plants nearby.

          Rain Shadow Deserts - Formed by climate patterns and mountains. Mojave and Sonoran Deserts are examples.

Aquatic Ecosystems: - Aquatic ecosystems occupy about 3/4 of the earths surface. The two main types are freshwater and saltwater habitats.

Water Column - Most aquatic life lives in the water column (good swimmers).

Plankton - Small floating organisms like algae (poor swimmers).

Benthos - Organisms that live on the bottom of the body of water

*Wetlands - A transition between the land and water

          Marsh and Swamp - Shallow bodies of water

*Creeks and Rivers - The least productive aquatic ecosystem. They are flowing water

*Ponds and Lakes - They are standing water

*Estuaries - Occur where fresh (Rivers) and saltwater (Oceans) meet. They are the most productive ecosystem.

          Salt Marsh - Salt water with predominantly grasses.

*Oceans - Deep saltwater that are influenced by tides and currents.

          El Nino - unusually warm equatorial waters near Christmas time.

          La Nina - unusually cold equatorial waters near Christmas time.



































Return to Greg Sievert's GB 100 Syllabus
Last updated on 4 January 2018