ENVS 1

Bethan Gale
Mind Map by Bethan Gale, updated more than 1 year ago
Bethan Gale
Created by Bethan Gale almost 5 years ago
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1

Description

AS AQA Environmental Studies - ENVS1 Mindmap of topic

Resource summary

ENVS 1
1 Conditions for life on Earth
1.1 Early Conditions
1.1.1 Lots of water
1.1.1.1 Physiological solvent
1.1.1.2 Transports O2, CO2, Sugars, AA etc
1.1.1.2.1 Blood
1.1.1.2.2 Sap
1.1.1.3 Temperature control
1.1.1.3.1 Homeostasis
1.1.1.4 Anomalous expansion
1.1.1.4.1 Ice floats
1.1.1.5 High Specific heat capacity
1.1.1.5.1 Reduces temp fluctuations
1.1.1.6 Aquatic habitats
1.1.2 Temp Range
1.1.2.1 Allows liquid water
1.1.2.2 Allows Enzymes to not denature

Annotations:

  • Living organism are found within 0-40  Thermophillic bacteria can withstand higher temperatures (sometimes over 80 degrees c) 
1.1.3 Gases
1.1.3.1 CO2
1.1.3.1.1 Photosynthesis
1.1.3.1.2 Climate control
1.1.3.2 Nitrogen
1.1.3.2.1 Protein synthesis
1.1.4 Sun Light/Radiation
1.1.4.1 Sunlight = energy
1.1.4.1.1 Photosynthesis
1.1.4.2 When absorbed = heat
1.1.4.2.1 Water cycle
1.1.4.2.2 Warming of the Earth
1.1.4.3 Little UV + Ionising radiation
1.2 How presence of life has equalled change

Annotations:

  • First Ecological succession. Life became more abundant and changed conditions on earth making them more suitable for varied life forms to develop and colonise a wider range of habitats.
1.2.1 Atmospheric Oxygen
1.2.1.1 Reactive so atmospheric concentration declined
1.2.1.1.1 Oxidation
1.2.1.2 Small amount released by photolysis of water
1.2.1.2.1 Photosynthetic bacteria then released larger amounts of O2
1.2.1.2.1.1 This absobed UV, they split, producing OZONE
1.2.1.2.1.1.1 Ozone layer allowed protection from UV allowing colonisation of land
1.2.2 Atmospheric CO2
1.2.3 Water Cycle
2 Conservation in the UK
2.1 Aims
2.1.1 - Protection of wildlife
2.1.2 - Protection of landscape/ countryside
2.2 Organisations
2.2.1 Governmental
2.2.2 NGO's
2.3 Meathods
2.3.1 Semi-natural habitats
2.3.2 Woodland management
3 Conservation Abroad
3.1 Antarctica
3.1.1 Threats
3.1.2 Importance
3.1.3 Features
3.1.4 Conservation
3.1.5 Life
3.2 Coral Reefs
3.2.1 Ecological features
3.2.2 importance
3.2.3 Threats
3.2.4 Conservation
3.3 Tropical rainforests
3.3.1 Ecological Features
3.3.2 Importance
3.3.3 Threats
3.3.4 Conservation
4 Life processes in the biosphere
4.1 Adaptation
4.1.1 Biotic Factors
4.1.2 Abiotic factors
4.2 Grouping
4.2.1 Taxonomy
4.2.2 Grouping environments
4.3 Changes in Ecosystem
4.3.1 Ecological succession
4.4 Diversity and ecological stability
4.4.1 Diversity index
4.4.2 Population dynamics
4.4.3 Homeostatic regulation of population size
5 Wildlife conservation
5.1 Rational for conservation
5.1.1 Knowledge/ Understanding
5.1.2 Moral/ Ethical
5.1.3 Aesthetics /Recreation
5.1.4 Economic
5.1.5 Resources
5.1.6 Life-support systems
5.2 Conservation Meathods
5.2.1 CB+R
5.2.2 Habitat conservation/ creation
5.2.3 Legal Protection
5.2.4 Management of exploitation
5.3 Human Threats
5.3.1 Unsustainable exploitation
5.3.2 Eradication of competitors
5.3.3 Unable to survive habitat alteration
6 Land resources
6.1 Land Use conflicts
6.1.1 Causes
6.1.2 Methods of resolving
6.2 Landscape conservation
6.2.1 Protection
6.2.2 Enhancement
6.2.3 Visitor management
6.2.4 Organisations
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