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Chapter 6: Restoration Ecology Big Question: Can We Restore Damaged Ecosystems? [Unless otherwise identified, photos and charts are from the text for ESRM100.]

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Lesson 6 / ESRM 100 / University of Washington Recovery Recovery from disturbance is the "Rule" not the exception. Image from http://vulcan.wr.usgs.gov/Imgs/

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Lesson 6 / ESRM 100 / University of Washington Primary Succession Primary succession is the initial establishment and development of an ecosystem where one did not exist.

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Lesson 6 / ESRM 100 / University of Washington Secondary Succession Secondary succession is the reestablishment of an ecosystem following disturbances.

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Lesson 6 / ESRM 100 / University of Washington Succession in Dunes

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Lesson 6 / ESRM 100 / University of Washington Bog Succession Cranberry Glades Bog, West Virginia Marsh Island UW Arboretum Organic Soil

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Lesson 6 / ESRM 100 / University of Washington The Harvard Forest Diorama East USA forest succession Pre-Settlement Forest - 1700 A.D. Early Settler Clears a Homestead 1740 A.D Height of Forest Clearing & Ag 1830 Farm Abandonment 1850 A.D Taken from Harvard Forest Web site at http://harvardforest.fas.harvard.edu/

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Lesson 6 / ESRM 100 / University of Washington Forest Succession: Harvard forest "Old-Field" white pine forest on abandoned farmland, 1910 Vigorously growing hardwoods, 1930 "Old-Field" white pine is Succeeded by hardwoods 1915 A.D. The Modern Forest Landscape

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Lesson 6 / ESRM 100 / University of Washington Success, a Process Facilitation - dune grass and floating sedge help the establishment of later successional species. Interference - bluestem prairie grass forms a dense surface mat that inhibits germination of seeds of other plants.

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Lesson 6 / ESRM 100 / University of Washington Ecosystem Changes during Succession

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Lesson 6 / ESRM 100 / University of Washington Steps in Planning Restoration Understand why restoration is needed. Describe ecologically the area to be restored. List the goals of the restoration. Develop performance standards and plans for monitoring the project. Develop strategies to ensure long-term maintenance and protection of the restored ecosystem.

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Lesson 6 / ESRM 100 / University of Washington Examples of Restoration of the Florida Everglades See Everglades Diary" at http://evergladesdiary.com/

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Lesson 6 / ESRM 100 / University of Washington Restoration of Californias Channel Islands

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Lesson 6 / ESRM 100 / University of Washington Restoring Land Damaged by Lead Mines in England Approximately 55,000 hectares have been contaminated by centuries of lead mining. First attempts using heavy fertilizer applications and fast-growing commercial grasses failed due to leaching of soil. Success was subsequently achieved using succession principles and slow-growing native grasses adapted to poor soils.

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Lesson 6 / ESRM 100 / University of Washington ESRM100 Students in Restoration Project

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Chapter 6: Restoration Ecology Questions? E-mail your TA. eschelp@u.washington.edu