Ecosystem Dynamics and Biodiversity Threats

The video explores ecosystem dynamics, focusing on human impact and management of future ecosystems. It discusses threats to biodiversity, including habitat destruction, invasive species, pollution, overexploitation, and climate change. The video highlights the importance of monitoring ecosystems and using models to predict future changes, emphasizing the role of bioindicators and climate models in understanding and managing ecosystems.

What is the primary focus of the video on ecosystem dynamics?

• The role of technology in ecosystems

• The impact of human activities and climate change

• The history of ecosystems

• The role of animals in ecosystems

Which of the following is NOT listed as a major threat to biodiversity?

• Habitat destruction

• Pollution

• Invasive species

• Natural disasters

What defines a biodiversity hotspot?

• A region with a large number of invasive species

• A region with a high human population

• A region with a large amount of biodiversity and significant habitat destruction

• A region with high levels of pollution

What is habitat fragmentation?

• The merging of different habitats

• The creation of new habitats

• The division of a habitat into smaller, isolated patches

• The complete destruction of a habitat

How do invasive species typically establish in new areas?

• Through natural migration

• Through genetic modification

• By adapting to local species

• By human introduction, either accidentally or deliberately

What characteristic makes an ecosystem vulnerable to invasive species?

• Moderate climate and unoccupied niches

• High biodiversity

• Low resource availability

• Strong species interactions

What is the primary consequence of overexploitation?

• Sustainable population levels

• Improved ecosystem health

• Increased biodiversity

• Decline in population numbers and potential extinction

What is the purpose of using bioindicators in ecosystem monitoring?

• To increase biodiversity

• To eliminate invasive species

• To promote habitat destruction

• To provide a cost-effective and reliable method for detecting ecosystem changes

How do climate models help in understanding future ecosystem changes?

• By increasing greenhouse gas emissions

• By eliminating climate change

• By simulating climate processes and projecting future scenarios

• By predicting exact weather conditions

What is the role of the climax model in ecosystem studies?

• To increase the population of invasive species

• To predict the extinction of species

• To reduce habitat fragmentation

• To examine the potential spread of species under different climate scenarios