Threats to Biodiversity

Types of Changes to Habitat

Habitat Loss

Habitat Loss – Climate Change

Loss of Habitat

Habitat Loss

Habitat Fragmentation

Habitat Fragmentation

Habitat Degradation

Air Pollution

Air Pollution

Air Pollution – Results of Acid Rain

Air Pollution – Results of Acid Rain

Air Pollution – Results of Acid Rain

Air Pollution – Results of Acid Rain

Land Pollution

Land Pollution - Mining

Land Pollution - Mining

Land Pollution

Water Pollution – Oil Spill

Water Pollution – Farm Run-off

Land Pollution – Farming Run-off

Water Pollution

Water Pollution

Results of Water Pollution

Results of Water Pollution

Water Pollution - Plastics

Invasive Species - Kudzu

Invasive Species - Milfoil

Invasive Species

Invasive Species

Invasive Species – Zebra Mussels

Conservation Biology The study of methods to protect biodiversity. 1973 – President Nixon signed the U.S. Endangered Species Act The Act made it illegal to harm endangered/threatened species and their habitats.

Conservation Biology Create nature preserves Sustainable use – humans can use the resources as long as it doesn’t harm the ecosystem. Example – Areas where trees are harvested are replanted with young trees. Create Habitat corridors.

Habitat Fragmentation & Habitat Corridors

Habitat Corridor

Reintroduction Programs Reintroduce organism into an area where they once lived. The factors causing the decline of the organism must be removed or fixed.

Reintroduction Programs – Black Footed Ferret

Reintroduction Programs

Endangered Species – California Condor

Captivity Humans raise animals to reintroduce them later. May be kept in captivity if they are the last of their species.

Raised in Captivity

Raised in Captivity

Raised in Captivity

Raised in Captivity