Title: Explain factors that lead to the decline and extinction of species.
Course: Fisheries and Wildlife Management (18501) > Section: Conserving and Managing Wildlife Resources

Explanation may include

- HIPPO
  - habitat loss
  - invasive species
  - pollution
  - human population
  - overharvesting
- inability to adapt to changes in the environment
- loss of food supply
- predation
- poaching
- use of chemicals
- climate change
- non-use or restricted use
- changes in human behaviors
- habitat enhancement.

Explanation may also include the factors that caused the following species to become threatened or endangered:

- West Indian manatee
- California condor
- Peregrine falcon
- Red wolf
- Black-footed ferret
- Whooping crane

Process/Skill Questions:

- What are some success stories in restoring a declining animal population?
- What does low biotic potential mean?
- How have humans contributed to the decline of species by poaching?
- How has overharvesting led to the decline of commercial marine species?
- How can we balance the commercial harvest of marine species with the interests of recreational fishermen?
- How does control of predator populations impact wildlife populations?
- How can poaching affect the pet trade?
- What is Aldo Leopold’s cultural harvest idea? How can it lead to poaching?
- How can habitat be enhanced to protect endangered species?
- How do wildlife managers account for human activities near habitat for threatened and endangered species?
- Why is an animal’s adaptability an important factor in its ability to survive?
- What are some nonindigenous species?
- How do invasive pest species cost U.S. consumers?
- How do nonindigenous species harm native wildlife?

Teacher Resource:

- Ecosystem Jenga, University of Nebraska, Lincoln (https://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1026&context=hprccpubs)