Impacts of Invasive Species

The video explores the impact of non-native species in the U.S., highlighting both positive and negative effects. Non-native species can benefit the economy and agriculture but also pose environmental threats when they become invasive. The video presents case studies and discusses the need for managing these species to protect native ecosystems.

What is a non-native species?

• A species that is endangered

• A species that is native to a specific region

• A species that is extinct

• A species that has been introduced to a new area

Which of the following is a benefit of non-native species?

• They always harm the environment

• They reduce biodiversity

• They contribute to the economy

• They are always invasive

How do non-native species help in pest control?

• By introducing natural enemies of pests

• By increasing pesticide use

• By spreading diseases

• By reducing crop yields

What is a major problem caused by invasive species?

• They improve local biodiversity

• They always provide economic benefits

• They reduce the population of native species

• They are easy to control

Which invasive species is mentioned as a threat to the Great Lakes ecosystem?

• Asian carp

• Vidalia beetle

• Labrador retriever

• Siamese cat

What was the unintended consequence of introducing melaleuca trees to Florida?

• They crowded out native plants

• They stabilized swampy areas

• They increased biodiversity

• They improved air quality

Which non-native species was introduced to stop soil erosion?

• Horse

• Mediterranean fruit fly

• Kudzu

• Olives

What is a negative impact of the Mediterranean fruit fly?

• It destroys citrus and vegetable crops

• It stabilizes swampy areas

• It is a major food source

• It improves soil quality

Why is it important to manage non-native species?

• To promote the spread of diseases

• To increase the number of invasive species

• To prevent environmental and economic damage

• To reduce biodiversity

What is the main conclusion about invasive species?

• They are beneficial to all ecosystems

• They must be removed and controlled

• They have no impact on native species

• They should be encouraged to spread