 |
| mt. st. helens. Lupine is a nitrogen fixer. |
Succession is a predictable changes in an ecosystem that happen when an area has no life (post lava flow, glacier retreats, for example) OR when there has been a severe disturbance (forest fire). Each stage in a succession makes conditions better for the following stages.
Khan Academy Video: Ecological Succesion
Ecological Succession: Encyclopedia Brittanica
Oregon post-fire 2003 B&B fire
Mt. St. Helens with Earth Observatory photos
