Download Chapter 3.1

Section 3.1
1. Succession – a process by which a biological community
changes over time.
2. Natural Event – An earthquake will cause damage to an
ecosystem/s in its path of destruction.
Human Event – Logging can cause destruction of habitats
where the logs are cut and can also destroy ecosystems.
3.
4. Lichen is termed a pioneer species because it needs few
nutrients to grow. It needs only a little water and sunlight.
5. Two examples of a climax community are: 1) Boreal Forest
(Canada) and 2) Tundra (Canada).
6.
7. The evidence that would indicate that a shallow pond once
existed in a forest ecosystem is the existence of a bog.
8. During a drive through some farmland you notice an old
farm field overgrown with weeds and shrubs. After
several more years, if the field continues to be left
undisturbed, it will turn into a forest ecosystem.
9. A community of plants and animals can alter the
environment to create new conditions that allow other
species to live in an area by:
1) A beaver making a dam to create a pond for fish.
2) Decaying trees can provide a new habitat for termites to
feed.