Populations and Sustainability

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What are the effects of human activity on animals and plants in the Galapagos islands
Overexploitation of resources. Habitat disturbance. External species eating plants, trampling,diseases, hunting of animals by humans and introduced species
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What is conservation?
Dynamic process involving management and reclamation
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What is the difference between conservation and preservation?
Preservation is protecting areas of land untouched by humans. Conservation is maintaining biodiversity
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What are the ethical, social and economic reasons for conservation
Each species has own rights, valuable food resources, disease resistance. Methods: Vaccines,control predation, preserve habitats, increase food supply
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How can the management of an ecosystem can provide resources sustainably?
Prevent deforestation. Balance between input and output. Continuous planting
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What is Coppicing?
Cutting a tree trunk close to the ground to encourage new growth
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What is interspecific cometition?
Competition between individuals of different species
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What is intraspecific competition?
Competition between individuals of the same species
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What is the carrying capacity of a population?
The levelling out of of a population. The habitat can't support a larger population
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Describe predator-prey relations
Predator pop. increases, prey decreases. Prey pop. decreases, less food sources, less predators. Prey pop.increases, more food for predators,pop.size increases.
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Explain the significance of limiting factors in determining the final size of a population
Population size= death rate and reproduction rate difference. Max. capacity can be reached. May lack food, Space, shelter, oxygen, CO2 etc
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Card 2

Front

What is conservation?

Back

Dynamic process involving management and reclamation

Card 3

Front

What is the difference between conservation and preservation?

Back

Preview of the front of card 3

Card 4

Front

What are the ethical, social and economic reasons for conservation

Back

Preview of the front of card 4

Card 5

Front

How can the management of an ecosystem can provide resources sustainably?

Back

Preview of the front of card 5
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