Presentation on theme: "WHAT CREATES AN ECOSYSTEM? Energy and nutrient flows create ecosystems. There are four main factors that determine the nature of biomes/ecosystems and."— Presentation transcript:
WHAT CREATES AN ECOSYSTEM? Energy and nutrient flows create ecosystems. There are four main factors that determine the nature of biomes/ecosystems and their location. Climate (temperature, precipitation, light intensity, wind) Landform (altitude, angle of slope, direction of slope) Soil Competition between species
WHAT IS THE DIFFERENCE BETWEEN AN ECOSYSTEM? A biome is a large (global) ecosystem. It contains many smaller ecosystems that are influenced by local conditions. There are a number of different classifications of biomes. Some say there are eight, others as many as 16. In each, there are many smaller ecosystems.
WHAT ARE THE DIFFERENT TYPES OF BIOMES? Tropical Rainforest Tundra Taiga Temperate forest Temperate grassland Savanna: tropical grassland Mediterranean Desert
TROPICAL RAINFOREST Almost all rain forests lie near the equator The temperature in a rain forest rarely gets higher than 34°C or drops below 20 °C More than half of all the world's plant and animal species live in tropical rain forests Tropical rainforests produce 40% of Earth's oxygen.
TAIGA Taiga: Russian for forest Cold winters, short summers. In Canada, called boreal forest In the southern Taiga regions, predominantly coniferous trees (softwoods, cone bearing) 29% of world’s forests