Sustainability

• What can disrupt ecosystems according to the video?

  Removal of materials
• What is necessary to promote ecosystem stability?

  Sustainable harvesting of materials
• What does sustainable harvesting mean?

  Removing materials at a replenishable rate
• Why is cod mentioned in the context of sustainability?

  It has been overharvested historically
• What is one strategy to promote sustainable cod populations?

  Protecting breeding zones
• What is the impact of soil erosion on agriculture?

  It can reduce soil quality and crop yield
• What is nutrient leaching?

  Fertilizers washing into bodies of water
• What happens when algae blooms in water bodies?

  They block light and deplete oxygen
• How does biological oxygen demand relate to aquatic life?

  High demand leads to organism deaths
• What is bioaccumulation?

  Accumulation of toxins in an organism's life
• What is biomagnification?

  Toxins accumulating through trophic levels
• Why are top predators affected by biomagnification?

  They consume many contaminated prey
• What is a major issue with plastic pollution in oceans?

  It does not break down easily
• What are macroplastics?

  Large visible plastic wastes
• What is a consequence of microplastics in ecosystems?

  They can be found in animal tissues
• What is rewilding?

  Restoring ecosystems by removing human intervention
• What is a strategy used in rewilding?

  Reintroducing keystone species
• What is the goal of rewilding?

  To return ecosystems to their natural state
• What is the significance of the Hinai Reserve in New Zealand?

  It demonstrates successful rewilding efforts
• How do ecosystems change over time?

  They can be stable with fewer disruptions