Ecological Succession
Across
- 1. The causes of primary succession are _____ and glaciers retreating.
- 3. The pioneer species of primary succession are ____ and mosses.
- 8. This type of succession takes place on bare rock, after volcanic eruptions or glaciers retreating.
- 10. The first organisms to colonize a new site and modify an area.
Down
- 2. A stable, mature community that undergoes little or no succession
- 4. This type of succession takes place on existing soil, after natural disasters and human impacts.
- 5. Ecological _______ - a series of changes in a community in which new populations of organisms gradually replace existing populations.
- 6. The causes of secondary succession are human actions and ______.
- 7. The pioneer species of secondary succession are weeds, wildflowers and ______.
- 9. This is already present in secondary succession.