Impact of Exotic Species

Exotic species, also known as alien or invasive species, are organisms introduced to new environments where they can thrive at the expense of native species. These introductions can occur accidentally or intentionally, often through human activities like shipping or agriculture. Exotic species pose significant threats to ecosystems, biodiversity, and human economies by outcompeting native species and altering habitats. Examples include pythons in Florida and rabbits in Australia. Efforts to control their spread involve public reporting, restrictions on imports, and specific regulations in parks.

What is an exotic species?

• A species that is native to a specific region

• A species that is domesticated

• A species introduced to a new environment where it did not historically exist

• A species that is endangered

Why are exotic species considered a threat?

• They are more colorful than native species

• They can outcompete native species for resources

• They are always carnivorous

• They are always larger than native species

Which of the following is a method by which exotic species are unintentionally introduced?

• Through ornamental gardens

• Through intentional release for sport

• Through controlled breeding programs

• Through natural migration

How can shipping contribute to the spread of exotic species?

• By preventing the spread of diseases

• By maintaining strict quarantine measures

• By carrying seeds and spores in cargo

• By transporting only native species

What is one of the main problems caused by exotic species?

• They always become endangered

• They improve biodiversity

• They create new habitats

• They can devastate natural resources

How do exotic species affect human activities?

• They provide new recreational opportunities

• They have no impact on human activities

• They can disrupt farming and fishing

• They enhance agricultural productivity

What happened when rabbits were introduced to Australia?

• They improved the soil quality

• They became extinct

• They were controlled by natural predators

• They multiplied and disrupted the ecosystem

Why are pythons in Florida considered a problem?

• They are native to the region

• They help control the rodent population

• They prey on native species and pets

• They are a protected species

What is one measure taken to prevent the spread of exotic species?

• Promoting the planting of exotic plants

• Prohibiting the use of certain firewood

• Allowing free movement of all species

• Encouraging the import of exotic pets

How can residents help control exotic species?

• By ignoring them

• By relocating them to new areas

• By reporting sightings to state agencies

• By feeding them