Changing Biomes Flashcards
What is the base of all food chains?
Producers
What is Biomass?
Dry weight of all organic mater within ecosystem
Define Gross Primary Production (GPP)
Total amount of energy produced by Vegetation
Define Net Primary Production (NPP)
Energy available to consumers (left over energy after the vegetation uses most of it up)
Humans alter biomes to produce:
F ood
I ndustrial Materials
F ibres
Environmental effects due to human alteration:
I slandisation P ollution O verharvesting D estruction of habitats S pecies introduction
List some advantages of Biome alteration
Transportation networks
Creates jobs for locals
Supplies land for agriculture and housing/ roads
List some disadvantages of biome alteration
Reduces Biodiversity
Loss of natural habitats
Islandisation
Takes years for forests to grow back
List the major impacts due to FIF
Water pollution - kills plants and animals
Salinity - ground water rises and corrodes soil
Human alterations to the physical characteristics of Biomes:
C utting of vegetation (removal of vegetation) A griculture T erracing (Land terracing) I rrigation M ining
How many previous extinctions has their been?
6
What is the main causes of loss of biodiversity?
- Destruction of Natural habitat
- Species introduction
- Pollution and Global Warming
What is sustainability?
Make something last.
Being able to meet the needs of the present generation without compromising the needs of the future generation
What are the management approaches?
Preservation
Conservation
Utilisation
Exploitation
What are the 4 biggest concepts in sustainability?
B iological diversity
I ntra generational - present
P recaustionary equality
I nter generational - future