Ecosystem Stability and Human Impact

The video explores the relationship between ecosystem stability, diversity, succession, and human activity. Ecosystem stability refers to the ability of an ecosystem to maintain its functions and structure despite disturbances. High diversity contributes to greater stability, as ecosystems with more species can better withstand and recover from disruptions. Human activities, such as deforestation and pollution, can negatively impact ecosystem stability by reducing diversity. Succession is the process of change in species composition over time, leading to increased diversity and stability. However, human interference can hinder succession, affecting ecosystem development.

What is the main focus of the video?

• The link between ecosystem stability, succession, diversity, and human activity

• The history of ecological studies

• The impact of climate change on ecosystems

• The role of technology in ecosystem management

How does diversity affect ecosystem stability?

• It increases stability

• It has no effect on stability

• It decreases stability

• It only affects stability in aquatic ecosystems

What happens to a desert ecosystem with low diversity when a plant species is lost?

• The ecosystem becomes more diverse

• New species quickly replace the lost plant

• The ecosystem remains stable

• Species relying on the plant suffer due to limited food sources

How does human activity generally affect ecosystem diversity?

• It increases diversity

• It decreases diversity

• It only affects diversity in urban areas

• It has no impact on diversity

What is an example of human activity that impacts ecosystem stability?

• Recycling programs

• Planting trees

• Deforestation for road-building

• Creating wildlife reserves

What is succession in an ecosystem?

• The introduction of invasive species

• The process of species extinction

• The long-term change in species structure over time

• The immediate response to natural disasters

What are pioneer species?

• Species that are introduced by humans

• Species that first appear during succession

• Species that appear last in succession

• Species that are always present in an ecosystem

How can human activity alter the process of succession?

• By having no effect on succession

• By preventing ecosystems from gaining diversity and stability

• By accelerating the process

• By ensuring all species survive

What is the relationship between diversity and ecosystem stability?

• Diversity and stability are unrelated

• Stability decreases as diversity increases

• More diversity leads to less stability

• More diversity leads to more stability

What is the effect of increased human activity on succession rates?

• It reverses succession

• It speeds up succession

• It has no effect on succession

• It slows down succession