All living things (plants/animals/humans) living on Earth.
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What is an ecosystem?
Small scale community of living things (ponds/streams)
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What is a biome?
Large scale ecosystem
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What are 3 examples of biomes?
Deserts, rainforests and tundra.
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What biomes are found commonly near the equator?
Rainforests
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What biomes are found commonly on the top/bottom of our planet?
Tundra
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What are 2 global factors that affect biome distribution?
Temperature and Precipitation
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What are 2 local factors that affect biome distribution?
Altitude and Quality of Soil
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How does the biosphere regulate the atmosphere?
It regulates the gases that make up the atmosphere - plants absorb carbon dioxide and produce oxygen for us to breathe.
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How does the biosphere regulate the hydrosphere?
This water is recycled again and again through the process of evaporation, condensation and water transfers such as surface run-off
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How does the biosphere regulate the nutrient cycle?
The hot, damp conditions on the forest floor allow for the rapid decomposition of dead plant material. This provides plentiful nutrients that are easily absorbed by plant roots
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What are the impacts of soil removal on the nutrient cycle?
If vegetation is removed, the soils quickly become infertile and vulnerable to erosion.
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What are 3 examples of goods?
Food, clothing and furniture
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What are 3 examples of services?
Pollination of crops, recycled soil nutrients and acts as a carbon sink
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What are the threats to the biosphere?
Deforestation, over hunting and climate change
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What is the threat to the Amazon Rainforest?
Deforestation
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How does deforestation destroy the Amazon Rainforest?
Habitats are destroyed, rivers become dirty and polluted and there is less biodiversity (species of plants/animals)
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What is the main cause of deforestation in Borneo?
Palm Oil
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Why is Palm Oil being planted in Borneo?
Cheap oil used by TNC's and sold in supermarkets in MEDCS (Doritos)
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What is one impact of deforestation in Borneo?
80% of orangutan population has been altered/lost.
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How is climate change impacting on biomes?
Extreme weather more common, Krill species die out and habitats broken up
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What is the local scale case study to conserve the biosphere?
Camley Street Natural Park
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What is the national scale case study to conserve the biosphere?
National Parks (Lake District UK)
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What is the global scale case study to conserve the biosphere
CITES (Convention on International Trade in Endangered Species)
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What does CITES do?
Aim is to stop the trade in products from endangered species of animal such as elephant ivory, crocodile skins and shark fin soup.
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What is sustainable forestry?
(Cameroon) A sustainable forest is a forest that is carefully managed so that as trees are felled they are replaced with seedlings that eventually grow into mature trees.
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What is 1 example of sustainable forestry?
Afforestation - the opposite of deforestation. If trees are cut down, they are replaced to maintain the canopy.
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Other cards in this set
Card 2
Front
What is an ecosystem?
Back
Small scale community of living things (ponds/streams)
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