Battle For the Biosphere Flashcards
Name five biomes
Tropical rainforest desert temperate deciduous forest taiga (coniferous forest ) Tundra
Explain three ways that we can conserve the biosphere
People can visit national parks he’s allowed the scenery of the biomes to be admired while reducing deforestation which destroys habitats- which destroys habitats (3)
International agreements such as CITES, this agreement protect endangered species is and makes it prohibited to hunt them which allows them to increase and not become extinct
What is an ecosystem?
A community of plants and animals that interact with each other and their physical environment
What is a biome?
A large ecosystem , a grouping of plants and animals over a large area
Explain the roles of temperature in explaining biome location
Temperature is the most important factor in by Biome location temperature : affects the length of the growing season ,the average temperature needs to be above 6°C for plants to grow
Certain animals can only survive in certain temperatures
Explain how precipitation affects the location of biomes
Different species need different amounts of rain to survive
Amount of rainfall determines whether a biome will be :temperate rainforest; grassland or desert
Name the local factors affecting biome distribution
Altitude
Soils
Explain how local factors affect the location of biomes
Altitude affects the distribution of biomes because every 1 hundred metres upwards the temperature drops by half a degree Celsius. Explains why mountainous regions on the equator have coniferous forests and tundra.
Different plants grow at different temperatures and may not survive if they are not in the right conditions this is why tough grasses are usually found on higher parts of mountains and trees are found near the bottom of mountains
Soil and geology has an influence as certain rocks can affect the fertility of soil in a biome ę.g Limestone creates dry soil conditions ,trees are less likely to be found in these areas
Soil is also important because less fertile soils will not support diverse plant life
Frozen soils are often impermeable ,which prevents root penetration and hinders growth of vegetation
Where are coniferous forests normally found?
These are at higher latitudes in Russia the coniferous forest is the most common found biome
Where is the Tundra Biome found?
In the Arctic Circle
What is a good?
Something that the biosphere gives us that is tangible
What is a service ?
Things the biosphere provides for us that are not tangible
State the services the biosphere provides for us
Gas regulation
Maintains soil health
Hydrological cycle
What does the biosphere do to maintain soil health and why is this important ? (Service)
-Dead leaves and plants add nutrients to the soil
- Insects and animals burrow into the soil, helping it to breathe,
This is important as if the soil is healthy, plants will grow well.
What does the biosphere do to regulate the composition of the atmosphere and why is this important ? (Service)
Plants absorb carbon dioxide which helps lower green house gas levels
Plants release oxygen which helps us to breathe
