Biodiversity

Biodiversity

What reduces biodiversity

• Extinctions and habitat loss reduce bio-diversities.
• Ex. The passenger pigeon has been extinct for almost 100 years.

What reduces biodiversity-habitat loss

Threatened Species

• If a species is likely to become endangered in the near future, it's is classified as threatened species.
• The Australian koala is threatened.

Endangered species

• If a species is likely to become extinct in the near future it is classified as endangered.
• The African black rhinoceros is endangered.

Habitat loss

Divided habitats

Introduced species

• Species that moves into an ecosystem as a result of human actions.
• The Ruffe was introduced into the Great Lakes by ships from other parts of the world.

Pollution

• Soil that is contaminated with oil, chemicals, or other pollutants can harm plants or limit plant growth.

Pollution

• Water pollution- water dwelling organisms are easily harmed by pesticides, chemicals, oil, and other pollutants.

Pollution

• Air pollution- air pollution form factories, power plants, and automobiles can harm sensitive tissues of many organisms.

Global warming

• Global warming is the term used to describe a gradual increase in the average temperature of the Earth's atmosphere and its oceans, a change that is believed to be permanently changing the Earth's climate.