1. Describe how environmental change can impact ecosystem stability
TEKS B.12F
Describe how environmental change can impact ecosystem stability

2. IN: What sorts of events might threaten biodiversity?
Pollution
Deforestation
Climate Change
Urbanization
Introduced Species
Disease
Poaching
The list goes on and on…
IN: What sorts of events might threaten biodiversity?

3. What is ecosystem stability?
Ecosystem stability: the ability of an ecosystem to maintain its structure and function despite disturbances.
Ecosystem structure includes physical and geological structures of the landscape, biodiversity, population sizes and interactions
Ecosystem function refers to processes such as water and nutrient cycling and biomass productivity
What is ecosystem stability?

4. Ecosystem Stability Components
Resistance
Resilience
An ecosystem’s ability to keep its structure & continue normal functions, even after a change
An ecosystem’s ability to regain normal structure and function after a change
Higher biodiversity=
higher resistance and resilience!
Ecosystem Stability Components

5. Environmental change at different levels
Organisms
Populations
Communities
Species respond to environmental change in ways that enable them to maintain homeostasis.
Populations respond in ways that reflect the success or failure of members of the population to survive and reproduce.
Communities respond to environmental change in ways that reflect the responses of the species and populations in the community.
Environmental change at different levels

6. https://youtu.be/xRfdDE6scWA
Keystone Species
Indicator Species

7. Nonnative species that outcompete native species for resources due to lack of predators/competitors.
Invasive Species

8. Describe how changes in the environment affect the stability of ecosystems.
Out: