Living world Flashcards
Desert
High pressure
Not many clouds
30% of earth
generally high temp during day and low during night
30 degrees North/ South
Polar
Cold air
dry
-50 degrees Celsius
North/ South pole
Deciduous Forest/ Coniferous forest
Deciduous forest lose their leaves in the winter
coniferous forests appear further north than deciduous.
50-60 degrees from equator
Temperate grasslands
American (prairies) and European (steeps)
Warm dry summers and cold winters
30-40 degrees from equator
Mediterranean
Hot dry summer mild winter
Olive and citrus are common
30- 40 degrees North/South of equator
Tropical Grassland
Wet season- violent storms
Dry season- Wild fire
15-30 degrees from equator
Tundra
Low growing plants
Cold dry & windy
60-70 degrees from the equator
Rainforest
Close to equator
high temp
High rainfall
6% of earth
low pressure
Biotic
Living
Eco system
A complex symbiotic relationship between abiotic and biotic aspects of the environment
Producer
Convert energy from the sunlight into sugar and absorb nutrients from the soil
Consumer
Get energy from eating sugars produced by producers
Decomposers
break down dead plants and animals and return nutrients to soil
Food chain
Simple links between producers and consumers in a line
Food web
More complex connections between species
how long does it take to form an ecosystem
100s -1000s of years
Adding beavers to ecosystems (Short term)
creates wetlands
stops flooding downstream
Kingfisher returns
kayaking might be more difficult
Adding beavers to ecosystems (Long term)
Helps with climate change
Reduces flood risk
Animal species return
Tourism
Epping Forest (deciduous forest north of London)
Home to many native trees(e.g. Oak,Elm Ash), insect, birds, amphibians, 177 species of moss and over 700 species of fungi
when leaves fall leave a nutrient rich layer
Interdependence
Everything is linked
Rainforest percents
20% of oxygen comes from rainforests.
25% of cancer curing drugs come from rainforests
50% of earths plants and animals come from rainforests
Emergent
Around 50m high and are the habitat for the forests pollinators
Canopy
Around 35m high and the most bio diverse layer of the rainforest. Most rainfall and 80% of sunlight is absorbed here it is quite windy.
Under Canopy
Quite dense no wind and quite dim and dark