Conservation

What the syllabus asks of you

• Describe a sustainable resource as one which is produced as rapidly as it is removed from the environment so that it does not run out
• State that some resources can be conserved 5 Explain how forests can be conserved using: and managed sustainably, limited to forests and education, protected areas, quotas and fish stocks replanting 6 Explain how fish stocks can be conserved using: education, closed seasons, protected areas, controlled net types and mesh size, quotas and monitoring
• Explain why organisms become endangered or extinct, including: climate change, habitat destruction, hunting, overharvesting, pollution and introduced species
• Describe how endangered species can be 7 Describe the reasons for conservation conserved, limited to: programmes, limited to: (a) monitoring and protecting species and (a) maintaining or increasing biodiversity habitats (b) reducing extinction (b) education (c) protecting vulnerable ecosystems (c) captive breeding programmes (d) maintaining ecosystem functions, limited (d) seed banks to nutrient cycling and resource provision, including food, drugs, fuel and genes 8 Describe the use of artificial insemination (AI) and in vitro fertilisation (IVF) in captive breeding programmes 9 Explain the risks to a species if its population size decreases, reducing genetic variation (knowledge of genetic drift is not required)