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The sun's energy drives atmospheric movements, sustains photosynthesis, and propels the seasons. The energy source of those circulatory systems are the sun. The atmosphere and its circulation systems determines where moisture-carrying air masses do and do not go. As the sun rotates around the sun, the position of the land masses will change resulting in various concentrations of solar radiation over the land masses. Insolation is measured by the amount of solar energy received per square centimeter per minute. Climate, terrain (or geography) and ocean and wind currents also play important roles. image from The distribution of biomes results from insolation, precipitation and temperature. Biomes usually cross national boundaries (biomes do not stop at a border for example, the Sahara, tundra, tropical rainforests). Water, insolation and temperature are the climate controls important when understanding how biomes are structured, how they function and where they are found round the world. Marine: deep ocean, coral reefs, estuaries and mangrove swamps.įorest – tropical rainforest, temperate forests and boreal or taiga.Ī biome has distinctive abiotic factors and species which distinguish it from other biomes.Freshwater: ponds and lakes, streams and rivers and wetlands such as bogs and swamps.A biome is a large-scale category containing many communities of a similar nature, whose distribution is largely controlled by climateĪquatic - which are further subdivided into: These two basic types of community contain smaller units known as biomes. There are two basic categories of communities: terrestrial (land) and aquatic (water). Ecosystem stability, succession and biodiversity are intrinsically linked.
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This leads to a pattern of alternative stable states for a given
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