Ecological Restoration - Theses, Dissertations, and other Required Graduate Degree Essays

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Eco-Cultural Restoration of Wetlands at Tl’chés (Chatham Islands), British Columbia, Canada

Peer reviewed: 
No, item is not peer reviewed.
Date created: 
2017-04
Abstract: 

This research project examined the restoration possibilities for two culturally important wetland ecosystems at Tl'chés (Chatham Islands, British Columbia, Canada). The first wetland is a sacred bathing pool and holds cultural significance, the second is a remnant silverweed and springbank clover (Potentilla anserine ssp. pacifica and Trifollium wormskjoldii) root garden. These wetlands are necessary ecosystems for the wildlife on Tl'chés as wetlands are rare, but also an integral part of Songhees' cultural practices. My work was done at the invitation from elder Súlhlima (Joan Morris) who was one of the last resident of the islands and retains hereditary rights there, and Songhees Chief Ron Sam and band council. The goal of my project was to develop a restoration plan to restore the wetlands to pre-abandonment conditions, so cultural practices can continue, and to benefit the islands native plant and animal species. The project highlights the value of combining traditional ecological knowledge (TEK) and traditional resource and environmental management (TREM) practices with ecological restoration.

Document type: 
Graduating extended essay / Research project
File(s): 
Supervisor(s): 
Darcy Mathews
Department: 
Environment: Ecological Restoration Program
Thesis type: 
(Project) M.Sc.

Restoration of Old Forest Characteristics in a 1957 Spacing Trial in the Malcolm Knapp Research Forest, British Columbia

Peer reviewed: 
No, item is not peer reviewed.
Date created: 
2017-04
Abstract: 

Forest managers are interested in determining how stands that have been logged might be managed to restore features characteristic of forests in later-stages of development. Incorporating forest restoration into forest management enables the use of forest-management skills, such as silviculture and regeneration techniques, to manage individual stands for multiple objectives. Therefore, I performed a comparative analysis of large trees, very-large trees, large snags, very-large snags, and large CWD among three stand types (i.e., 60-yr-managed, 140-yr-natural, and 500-yr-natural stands). The 140-yr-natural and 500-yr-natural stands were used as reference conditions to guide the restoration of a 59-yr-managed spacing trial. All attributes differed among stand-types; however, large snags were the most similar attribute between 140-yr-natural and 500-yr-natural stands. Large trees were the fastest attribute to recover in 60-yr-managed stands, however mean values among stand-types still differed. This study highlights the potential of restoring old-natural attributes in younger-managed stands to increase ecological resiliency.

Document type: 
Graduating extended essay / Research project
File(s): 
Supervisor(s): 
Dr. Doug Ransome
Department: 
Environment: Ecological Restoration Program
Thesis type: 
(Project) M.Sc.