Understanding Biodiversity and Extinction

What is the UN's target for reducing the extinction rate by 2050?

• 90%

• 100%

• 70%

• 50%

Why is it difficult to measure biodiversity accurately?

• Too many species to count

• No standard measurement method

• Lack of interest

• Biodiversity is not important

Which metric measures the number of species in a specific area?

• Species evenness

• Species richness

• Species density

• Species diversity

Why is it important to use multiple metrics to measure biodiversity?

• To capture different aspects of biodiversity

• To save time

• To avoid errors

• To make it easier

What surprising trend is observed in local biodiversity measures?

• Uniform loss everywhere

• No change at all

• Complete extinction

• A balance of losses and gains

What does 'species shuffling' refer to?

• Species moving to new areas

• Species going extinct

• Species changing their diet

• Species increasing in number

How does climate change affect fish assemblages in the North Atlantic?

• They decrease in number

• They remain unchanged

• They become more similar

• They become more diverse

What is a potential consequence of introducing generalist species to new environments?

• Decreased competition

• Increased biodiversity

• Increased competition for resources

• No impact

What is the focus of the Biotime project?

• Studying climate change

• Tracking species over time

• Measuring pollution levels

• Counting human populations

How can regular citizens contribute to biodiversity research?

• By watching documentaries

• By ignoring local habitats

• By participating in citizen science projects

• By donating money