Booklet One Case Studies Flashcards
What is an ecosystem
In interacting communitiy of biotic and abiotic factors
Small scale uk ecosystem
Epping forest Essex
What is the eco system like in Epping forest
Several native species eg oak elm ash beech
Lower shrub area
Grasses brambles and braken
Many insect mammals amphibians
700 species of fungi
Inter relationships in Epping Forrest
Spring
Summer
Autumn
Winter
Spring
Flowering bulbs eg blue bells
Use sunlight penetrating through branches
Stored nutrients used by growing plants
Producers produce fruit eg berries
Summer
B-road tree leaves grow quickly
Maxine’s surface area for photosynthesis
Autumn
Conserve energy and water
She’d leaves
Winter
Bacteria and fungi decompose leaf litter
People in Epping forest
Many trees have been coppiced or polleraded to encourage new straight growth
Visitors pick up berries dispersing seeds
Nutrient cycling
Main sources rainwater
Weathering of rocks
Three main stores , litter biomass soil
Changes in ecosystems
Natural change eg weather events fire spread of invasive species
Human change eg land use alteration to water and soil hunting
Global ecosystems
Grassland
Hot dessert
Temperarate deciduous forest
Tropical rainforest
Tundra
Polar
Grassland
15-30 N and s
Gasses few plant species
Rainfall soil heat wet and dry season
Temperate deciduous forests
50 n and s
Diverse
Seasonal
Tropical rainforest
Close to equator
South America
Lots of bio diversity
Humid same temp all year
