Invasive and Keystone Species

Front

What is an invasive species?

Back

An invasive species is a non-native organism that spreads widely in a new environment, often causing harm to native species and ecosystems.

Front

Give an example of an invasive species.

Back

Zebra Mussel is an example of an invasive species that came from Europe and harms native fish.

Front

What is a keystone species?

Back

A keystone species is a species that has a disproportionately large effect on its environment relative to its abundance, helping to maintain the structure of an ecosystem.

Front

Why are keystone species important?

Back

Keystone species are important because they help control prey populations and maintain biodiversity in an ecosystem.

Front

What does biodiversity mean?

Back

Biodiversity refers to the variety of different species of plants and animals in an ecosystem.

Front

What is species diversity?

Back

Species diversity is the variety of different living things (plants and animals) in an area.

Front

What impact do invasive species have on biodiversity?

Back

Invasive species can reduce biodiversity by outcompeting native species for resources, leading to declines or extinctions.

Front

What is an example of a keystone species?

Back

Sea otters are an example of a keystone species because they help control sea urchin populations, which in turn helps maintain kelp forest ecosystems.

Front

What are apex predators?

Back

Apex predators are species at the top of the food chain that have no natural predators, helping to regulate the populations of other species.

Front

How do invasive species spread?

Back

Invasive species can spread through various means, including human activities, such as shipping, trade, and the release of pets into the wild.