Flashcards in Ecosystems Deck (27):
What is an ecosystem?
A natural system made up of plants, animals and the environment.
Give a example of a small scale ecosystem
Pond, hedge, woodland
Give an example of a large scale ecosystem
What is another word for large scale ecosystem?
What is a producer?
Producers convert energy from the sun into energy (e.g. plants)
What is a consumer?
A consumer eats a producer, this is where it gets its energy from. Usually eats plants (e.g. snail)
What is a decomposer?
Break down dead plants and animals and put nutrients into the soil (e.g. bacteria)
What is a food chain?
Shows the direct links between producers and consumers
What is a food web?
Shows all of the connections between producers and consumers
What causes ecosystems to change?
Global changes (e.g. climate change) and local change (cutting down a hedge)
Name one natural way habitats can change
Extreme weather like droughts (e.g. pond could dry up)
Name one human cause of habitat change
Cutting down hedges, using fertiliser, cutting down trees
Where are tropical rainforests found?
Close to the equator
Where are deserts found?
30 degrees north and south of the equator
Where are polar ecosystems found?
The Arctic and Antarctica
Where are deciduous forests found?
50-60 degrees north and south of the equator
Where are grasslands found?
30-40 degrees north and south of the equator
Where is savannah found?
15-30 degrees north and south of the equator
Where is tundra found?
60-70 degrees north and south of the equator
Describe the characteristics of tropical rainforests
Hot and wet all year round
Many plants and animal species
Describe the characteristics of deserts
Hot and dry all year round
Plants and animals need to be well adapted
Describe the characteristics of deciduous forests
Deciduous trees drop leaves in winter
Coniferous keep pines (Christmas trees)
UK is deciduous
Describe the characteristics of grasslands
Warm dry summers
Describe the characteristics of Mediterranean ecosystems
Hot, sunny and dry summers
Olive trees, lemon trees
Where are Mediterranean ecosystems found?
40-45 degrees north and south of the equator
Describe the characteristics of savanna
Wet and dry seasons
Dry season very hot- wildfires
Thunderstorms in wet season
Lions and leopards