Course review
Review each learning objective in this topic, then open its concept explanation or question set.
Learning objective
• Direct: overharvesting, poaching, illegal pet trade • Indirect: habitat loss, climate change, pollution, invasive alien species
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
• Most ecosystems subject to multiple impacts • Effects amplified when combined
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Learning objective
• Reduce biodiversity through competition, predation, diseases/parasites
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Learning objective
• Global conservation status assessment • Based on: population numbers, rate changes, breeding potential, geographic range, threats • Status ranks: least concern (LC) to extinct (EX)
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Learning objective
• Publicizes species vulnerability • Allows selection of conservation priorities and management strategies
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Learning objective
• Extinct species due to human activity • Critically endangered species • Species improved by intervention
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Learning objective
• Overexploitation of shared natural resources • Tension between individual self-interest and sustainable development • Examples: fish stocks, ocean plastic pollution
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Learning objective
• Under threat from habitat destruction • Significant loss risk, especially in tropical biomes
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Learning objective
• Sites contributing to global biodiversity persistence • Hold species at extinction risk or ecosystems at collapse risk
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Learning objective
• Exploitation vs. sustainable development vs. conservation • Example: palm oil plantations in Malaysia/Indonesia
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Learning objective
• Can be more sustainable • Challenges: population growth, economic development, climate change, lack of support
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Learning objective
• Must be considered when addressing biodiversity loss • Impacts on indigenous and marginalized communities
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Learning objective
• Species extinctions have crossed critical threshold • Could lead to Earth system tipping point
Start with the concept explanation, then practise to create mastery evidence.