How can ecosystems processes be disrupted?

Question 1

What is an ecosystem?

Answer 1

The arrangement of plant and animals in a particular location and their interaction with each other and their nonliving environment.

Question 2

How does energy flow within an ecosystem?

Answer 2

Sun -> Producers -> Primary consumers (herbivores) -> Secondary consumers (carnivores) -> Tertiary consumers

Question 3

Alien invasive species

Answer 3

Our globalised world increased the threat from alien invasive species
These are species which move out of their natural habitat and colonise new areas, as a result of human activity.
May be introduced deliberately or accidentally.

Question 4

What makes a successful invader?

Answer 4

Short lifespan- able to go through natural selection and become adapted to area quicker if change occurred.
Quick reproduction
Tolerant to lots of food sources

Question 5

Invasive Species and the Galapagos Islands

Answer 5

Rats are bad!
Harbor disease
Reproduce quickly
Eat a lot