Populations, Communities, and Ecosystems

The number and variety of different species in an area

• Biodiversity

• Keystone species

• Extinction

• Invasive species

A species that influences the survival of many other species in an ecosystem

• Biodiversity

• Keystone species

• Extinction

• Invasive species

The disappearance of all members of a species from Earth

• Biodiversity

• Keystone species

• Extinction

• Invasive species

Non-native species

• Biodiversity

• Keystone species

• Extinction

• Invasive species

The benefits humans receive from ecosystems.

• Ecosystem Services

• Natural Resource

• Conservation

• Sustainability

Anything naturally occurring in the environment that humans use

• Ecosystem Services

• Natural Resource

• Conservation

• Sustainability

The practice of using less of a resource so that it can last longer.

• Ecosystem Services

• Natural Resource

• Conservation

• Sustainability

The ability of an ecosystem to maintain biodiversity and production indefinitely

• Ecosystem Services

• Natural Resource

• Conservation

• Sustainability

Is the practice of helping a degraded or destroyed ecosystem recover from damage.

• Ecosystem Services

• Natural Resource

• Ecological Restoration

• Sustainability

The first species to populate an area during succession

• Pioneer species

• Keystone species

• Extinction

• Invasive species