Impact of Wildlife on Ecosystems and Economies

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Which of the following is NOT a benefit of biodiversity mentioned in the text?

Contributing to air and water pollution (correct)

Offering cultural and aesthetic benefits

Providing new food sources

Affecting climate stabilization

What is one of the benefits of biodiversity related to wild plants?

Enhancing droughts and floods

Leading to increased pollution levels

Providing genetic diversity for disease protection (correct)

Decreasing the resilience of ecosystems

How does biodiversity contribute to ecosystem resilience?

By adding instability to ecosystems

By reducing the ability to recover from stress

By increasing adaptation to change (correct)

By decreasing the consequences of losing a keystone species

What happened in Yellowstone National Park as a result of losing wolves?

Shift in trophic levels and environmental changes Signup and view all the answers

Why are keystone species important in ecosystems?

Their loss can lead to cascading impacts across trophic levels Signup and view all the answers

How can biodiversity help in controlling pests and diseases?

By providing natural predators for pests Signup and view all the answers

Which type of pollution is caused by excessive use of plastic?

Water pollution Signup and view all the answers

What is the main characteristic of an exotic species?

Brought to new habitats by humans Signup and view all the answers

Why are invasive species harmful to ecosystems?

They out-compete native species for resources Signup and view all the answers

How do native species differ from exotic species?

Exotic species may be harmful, neutral, or beneficial Signup and view all the answers

Which human activity is associated with overconsumption of resources like deforestation and mining?

Poaching and mining Signup and view all the answers

Which type of diversity refers to the number of different ecosystems in a region?

Ecological diversity Signup and view all the answers

Why are populations with little genetic diversity vulnerable to environmental change?

They lack the variation needed to help adapt to new conditions Signup and view all the answers

Which group of organisms is mentioned as the most diverse with over 1 million species?

Insects Signup and view all the answers

Among different biomes, which biome has the highest biodiversity?

Tropical rainforest biome Signup and view all the answers

What is the primary reason why many species have not yet been discovered?

Many unknown species are small and overlooked Signup and view all the answers

What is the term used to describe the variety of life across all levels of biological organization?

Species diversity Signup and view all the answers

What has caused scrubby vegetation to overgrow in some of Africa's savannas?

The removal of elephants Signup and view all the answers

Which species has been extirpated from most of its historic range but is not yet extinct?

Black rhinos Signup and view all the answers

How do humans contribute to biodiversity loss according to the text?

By changing ecosystems Signup and view all the answers

What benefits do biodiversity provide to economies based on the text?

Supporting local businesses and employment Signup and view all the answers

What is the definition of extirpation according to the text?

Loss of a species from one area only Signup and view all the answers

Why is the recovery of the beaver population mentioned in the text?

To show how human actions can restore natural habitats Signup and view all the answers