8.7 Discruptions of Ecosystems
The long-term objective of restoration is to return an ecosystem as much as possible to its predisturbance state. Two key strategies are employed in restoration: bioremediation and biological augmentation.
To Think About:
In what way does naturally occurring diversity among and between components within biological systems affect interactions with the environment?
In what way does the environment interact with random or preexisting variation in populations? In what ways are competition and cooperation important aspects of biological systems? How does the environment interact with random or pre-existing variations in populations? How do invasive species affect ecosystem dynamics? What human activities lead to changes in ecosystem structure and/or dynamics? How do geological and meteorological activities lead to changes in ecosystem structure and/or dynamics?
Watch: AP Daily Video Disruptions to Ecosystems
Answer the Following Questions:
- Evolutions is _____________ in a population over time.
- What is an adaptation? What causes adaptations to arise?
- List three possible results of increases in the frequency of adaptions.
- What is an invasive species? Why do they often outcompete other native organisms?
- Human activity ________________ change on local and global levels.
- List at least four examples of human impacts on ecosystems.
- What are some geological or meteorological events that can change ecosystems?
- How do these events accelerate evolution?
- STOP the video at 12:15. What (if any) was the effect of the introduction of species C on the ecosystem?
Supplementary Resources:
On the way…
