How to Fix a Broken Ecosystem

The video discusses the resilience of nature and how ecosystems can recover with minimal intervention. It introduces metrics for ecosystem health: biomass, necromass, and biodiversity. The video explains methods to stimulate ecosystem recovery, such as soil stabilization and planting pioneer species. It covers ecological succession, climax communities, and the impact of agriculture on ecosystems. Novel ecosystems, formed by human impact, are also discussed. Finally, the video presents the seed ball method for large-scale restoration, highlighting its potential for ecosystem recovery.

What are the three metrics used to measure the health of an ecosystem?

• Temperature, humidity, and rainfall

• Soil pH, sunlight, and water availability

• Animal population, plant height, and soil color

• Biomass, necromass, and biodiversity

What is the first step in restoring a damaged ecosystem?

• Increasing sunlight exposure

• Reducing water levels

• Soil stabilization

• Introducing new animal species

Which type of species is crucial for starting the process of ecological succession?

• Pioneer species

• Climax species

• Endangered species

• Invasive species

What is ecological succession?

• The extinction of species in an ecosystem

• The introduction of non-native species

• The development of an ecosystem from bare ground to a stable state

• The process of soil erosion

What is a climax community?

• A community dominated by invasive species

• An ecosystem with no biodiversity

• A stable ecosystem that has reached a state of equilibrium

• A community of only pioneer species

What are novel ecosystems?

• Ecosystems that have never been impacted by humans

• Communities of species assembled by humans on impacted lands

• Ecosystems with only native species

• Ecosystems that are completely artificial

What percentage of the Earth's landmass is covered by novel ecosystems?

• 50%

• 33%

• 25%

• 10%

What is the purpose of using seed balls in ecosystem restoration?

• To attract wildlife to the area

• To increase water retention in soil

• To introduce a variety of seeds to degraded lands

• To prevent soil erosion

Who proposed the idea of using seed balls for large-scale revegetation?

• David Attenborough

• Masanobu Fukuoka

• Rachel Carson

• John D Lu

How can modern technology assist in the implementation of seed ball strategies?

• By using drones to distribute seed balls

• By developing new types of seeds

• By creating artificial rain

• By monitoring plant growth with satellites