Populations and Sustainability

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  • Populations and Sustainability
    • Factors determining final size of a population
      • Abiotic
      • Biotic
    • Predator-Prey relationships and how possible effects on size of each population
      • The larger the prey population, the larger the predator population will be come as a result
        • Due to the larger predator population size, the prey population size decreases
          • The smaller the prey population, the smaller the predator population will become
            • Due to the decreased predator population size, the prey population size increases
              • The larger the prey population, the larger the predator population will be come as a result
                • Due to the larger predator population size, the prey population size decreases
                  • The smaller the prey population, the smaller the predator population will become
                    • Due to the decreased predator population size, the prey population size increases
      • Methods of sustainable timber production
        • Selective felling
        • Coppicing
          • Elm trees. Shoots develop when parent tree is felled. After a few years, these shoots are felled.
        • ***** Felling
          • Small patches of area are cleared at one time. Soil erosion and loss of species is avoided.
      • Management and reclamation of an ecosystem
      • Reasons for conservation of biological resources
      • Effects of humans on the Galapagos Islands
        • Cats/ Dogs/ Goats
          • Lonesome George
          • New diseases
      • Definitions
        • Conservation
          • Maintenance of biodiversity but area can still be sustainably exploited

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