Unit 6 Organisms and the environment : Observe and describe how different environments, including microhabitats in schoolyards and biomes, support different varieties of organisms

The 6 Main Biomes

The Fresh water Fresh water biome: example lakes, rivers, and streams The freshwater biome covers only 0.8% of  the total water on this Earth General climate: On average temperatures range from 65 °F to 75 °F in the summer and  35 °F to 45 °F in the winter. Water which makes up this biome are distributed unevenly throughout the globe (W2). As a result the climate of these Biomes is greatly diverse depending on the region . Abiotic Factors:The geographical location of the water source on the planet. » The climatic conditions prevailing in the region. » The temperature of the region where this water body is located. ».» The angle at which sunlight hits the surface of the water body. » The precipitation pattern of the region in which the water source is located. »Biotic factors: There are over seven hundred species of fish , beavers, frogs, turtles, cattails and several species of insects are found in this biome, like mosquitoes and dragonflies.

Marine Biome: Example Ocean The climate: The general climate of the marine biome is mostly varied. Since it is the largest biome in the world, the climate varies from -40 degrees fahreheit to over 100 degrees. The average temperature is 39 degrees Fahrenheit The abiotic factors: More than half of the world's rain fall over the ocean. Salt and rocks are also found in the ocean. The temperature varies. The biotic factors: Sharks, whales, sponges, plankton, dolphins, krill, lobster, oysters, jellyfish, starfish, kelp and shrimp

Share Time How might the abiotic factors influence the biotic factors in a biome? Ex. Light and temperature affect the plants and animals

Rainforest : Tropical rainforest biome is the most complex and species-rich biome on the Earth. 80% of all world's biodiversity is found here Climate: The climate is warm and wet. Located near the equator. Abiotic factors: it has more direct sunlight hitting land and sea than most other areas. This makes it very good for the growth. It rains more than ninety days a year in the rainforest, and between these rain storms, the warm sun usually heats up the earth. Biotic factors: rainforest contains 400 species of birds and 150 species of butterflies. Some animals of the rainforest have not yet been identified.

Grassland Climate: The grassland has no trees to block the wind, so it is always windier.  Grasslands are normally very dry.  The annual precipitation is 20cm-100cm.   Abiotic factors: The average temperature is about 20-30 degrees Celsius (summer).  The winter temperature is about 20-25 degrees Celsius and the summer is 25-30 degrees Celsius.  The summer is wet while the winter is dry.  Another type of grassland is called a temperate grassland.  There are also only two seasons, with summers from warm to hot, and winters from cold to freezing.  The soil is full of nutrients. Biotic factors: Different grasses, grazing and herding animals.

Share Time Which ecosystem would be more likely to survive if a disease killed one animal?

Desert Biome Climate of the desert: Temperatures exhibit daily extremes because the atmosphere contains little humidity to block the Sun's rays. Desert surfaces receive a little more than twice the solar radiation received by humid regions and lose almost twice as much heat at night. Many mean annual temperatures range from 20-25° C. The extreme maximum ranges from 43.5-49° C. Minimum temperatures sometimes drop to -18° C. Abiotic factors: Rainfall is usually very low and/or concentrated in short bursts between long rainless periods. The soil can range from sandy and fine-textured to loose rock fragments, gravel or sand. Biotic factors: Plants are mainly ground-hugging shrubs and short woody trees.

Tundra Climate: Tundra is the coldest of all the biomes. The arctic is known for its cold, desert-like conditions. The growing season ranges from 50 to 60 days. The average winter temperature is -34° C (- 30° F), but the average summer temperature is 3-12° C (37-54° F) which enables this biome to sustain life. Rainfall may vary in different regions Abiotic factors: Yearly precipitation, including melting snow, is 15 to 25 cm (6 to 10 inches). Soil is formed slowly. A layer of permanently frozen subsoil called permafrost exists, consisting mostly of gravel and finer material. Biotic :low shrubs, sedges, reindeer mosses, liverworts, and grasses 400 varieties of flowers crustose and foliose lichen

Share Time: What factors make a biome more habitable?