Endangered Species

Question 0

What 4 ways can you evaluate the success of a conservation programme

Answer 0

1. Genetic variation - needs to survive disease and environmental change
2. Viability of populations - ability to reproduce without inbreeding
3. Available habitats - need plenty
4. Interaction between species - as in natural environments - predators allowed to hunt

Question 1

What 3 areas cause species to become extinct?

Answer 1

Number of habitats - for food / shelter
Number of individuals - hard to find mates
Genetic variation - (number of different alleles) if low species less likely to adapt, change and survive

Question 2

How do conservation programmes help wildlife and humans?

Answer 2

1. Protecting human food supply - eg. fish
2. Ensuring minimal damage to food chains - if one species becomes extinct will effect whole food chain
3. Providing future medicines - from plants
4. Cultural aspects - eg. bald eagles national symbol in USA