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Ecological Succession and Watershed Review

Across
Plants that live more than two years, die back every autumn and winter, then return in spring and summer from their roots.
Where a river empties into a larger body of water. (Lake or Ocean)
Occurs in all types of ecosystems: The series of changes in an environment when one community is replaced by an other community as a result of changes in biotic and abiotic factors.
The process of creating and developing an ecosystem nan area that was previously inhabited. Example: lava fields
Plants that grow from seed, with a life cycle that lasts only one year.
The branch of biology that studies relationships among organisms and their environments.
Down
The process of repairing a damaged ecosystem after a destructive event.
An organism that is classified as a symbiotic relationship between an algae and fungus.
A Community that is able to maintain its self for long periods of time with few changes in the species that populate it. (equilibrium)
An area of land that drains a river from its highest point (dividing ridge) to its lowest point (river mouth.)
The highest point of a watershed. (Pine Mountain)
Organisms that have the ability to colonize new and uninhabited areas rapidly and grow. Example: lichen
Where two different streams join the main river.
A creek, stream or river that flows into a larger river.