Invasive and Keystone Species

Front

What are invasive species?

Back

Invasive species are non-native organisms that spread widely in a new environment, often causing harm to native species and ecosystems.

Front

How do invasive species affect native species?

Back

Invasive species can crowd out native species, compete for resources, and disrupt local ecosystems.

Front

What is species diversity?

Back

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

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, often maintaining biodiversity by controlling prey populations.

Front

What is the primary cause of invasive species introduction?

Back

The primary cause of invasive species introduction is human actions, such as trade, travel, and habitat alteration.

Front

Which term does NOT describe an invasive species?

Back

Natural.

Front

What is the difference between native and non-native species?

Back

Native species are those that naturally occur in a specific area, while non-native species are introduced from other regions.

Front

Why are keystone species important for ecosystems?

Back

Keystone species are important because they help maintain the structure of an ecosystem, influencing the types and numbers of other species.

Front

Can invasive species ever be beneficial?

Back

In some cases, invasive species can provide benefits, such as new food sources or habitat, but they often disrupt existing ecosystems.

Front

What role do apex predators play in an ecosystem?

Back

Apex predators help control the populations of other species, maintaining balance in the ecosystem.