Ecosystems with case studies Flashcards
Define an ecosystem
a community of plants and animals that interact with each other and there physical environment
Define a biome
an ecosystem on a global scale
Lots of biomes are…
a biosphere
Three things about a Tropical rainforest
1) Hot and wet (27-30 degrees)
2) Broad leave plants
3) Found at the equator
Three things about a Desert
1) Very hot, low rainfall (above 30 degrees)
2)Plants have water storing adaptation (succulence)
3) Found in the northern hemisphere, Low pressure at the equator
Three things about a Tundra
1) Temperatures are below 0 degrees
2) Lichen and mosses
3) Found at either pole
Three things about a Temperate Deciduous forest
1) Warm summers, cool winters
2) Precipitation all year
3) Trees drop there leaves
Define a climatic factor
linked to the earths climate, driven by the suns energy
(latitude)
Define a local factor
in a close area/local area
(altitude)
Define a good
a tangible object you can take from an ecosystem
(wood)
Define a service
something a biome does which automatically benefits us
(co2 into o2)
What is the nutrient cycle for a tropical rainforest?
small leaf litter
small soil
large biomass-biotic
What are the UK’s ecosystems?
heathland
wetland
moorland
marine
woodland
Benefits of marine ecosystem
tourism
fishing
energy
Threats to marine ecosystem
overfishing
eutrophication
wind farms
economic development of coast
Define endemic
to be adapted
Adaptations of animals that live in the tropical rainforest
camouflage
waterproof leaves
butress roots
pitcher plants
A fact about Tavy
80% of deforestation is tavy
slash and burn
land is then infertile
A fact about population growth
4 million people in 1950 to 20.7 million in 2010
Next ten years will increase to 30 million
A fact about illegal logging
Second main cause if Madagascars deforestation
Corruption is common
Madagascan people are poor and illegal logging pays well
Two impacts on the tropical rainforest from climate change
Decomposition of litter on the forest floor slows down in the dry season, soil becomes a bigger store of nutrients
Precipitation could be lost to areas down stream, causes drought
Sustainable rainforest management
Government policies
Ecotourism
Rainforest services
Sustainable agriculture
Social benefits
Problems
Government policies
Association mitsinjo
Ecotourism
Patrols 10,000 hectares of reserve to look out for illegal logging
Rainforest services
Planted more than one million new trees
Of 150 local species
Sustainable agriculture
System of rice intensification
Problems
14,000 inhabitants most of whom live in poverty
Associations relies on international funds
