Landscape Ecology and GIS RESM 493q Wed Dec 9. Overview. Landscapes and landscape ecology Regional assessments and GIS use Indicators Examples (Bird Community Index) and Landform analysis or ecological land units. What is a landscape?.
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Keystone species: One that is crucial to supporting an entire food web and whose extinction would lead to the extinction of other species. A keystone species' impact on an ecosystem is disproportionately larger than its abundance suggests.
Umbrella species: Typically a large species requiring a lot of habitat. Protecting an umbrella species' habitat protects other species as well.
(National Wildlife Federation, 2005)
And now a local or large map scale example….
Relationship to keystone or umbrella species