DoyonYamasakiDuchesneau2008

Référence

Doyon, F., Yamasaki, S., Duchesneau, R. (2008) The use of the natural range of variability for identifying biodiversity values at risk when implementing a forest management strategy. Forestry Chronicle, 84(3):316-329. (Scopus )

Résumé

The Natural Range of Variability is a concept used under the ecosystem management paradigm that means understanding the disturbance-driven spatial and temporal variability of the ecological systems and mimicking them in management strategies. With this project, we developed a framework that permitted addressing biodiversity issues under the lens of the Natural Range of Variability (NRV) for a managed public forest in central-west Alberta. To do so, we brought together a spatial harvest scheduler, a fire and succession landscape simulator, and a toolbox of biodiversity indicator models. Indicator models, that encompass landscape configuration, ecosystem diversity, stand internal habitat features and speciesspecific habitat supply models, were applied on the outputs of the landscape dynamics simulator to define the NRV. The risk of losing biodiversity values in applying the forest management strategy was addressed by comparing indicators outputs over the simulation horizon with their respective NRV. Results demonstrate that no forest-age-related indicator evaluated on the harvest scheduler output shows an important deviation from the NRV. However, in regards to forest cover types there is obviously a loss in ecosystem diversity, as a direct effect of the stand composition control of the silvicultural strategies. We found that patch size distribution is generally compliant with the NRV, although we observed more large patches and better connectivity for old growth patches under fire-driven landscapes. We also found that downed woody debris volume and many understory vegetation (ground lichen, herb and shrub) covers were at risk. Over the seventeen wildlife species, we detected nine species that could be jeopardized by important loss of habitats. Back-tracking bottleneck forest conditions that put these biodiversity values at risk has allowed development of recommendations with regards to landscape design and adapted practices.

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@ARTICLE { DoyonYamasakiDuchesneau2008,
    AUTHOR = { Doyon, F. and Yamasaki, S. and Duchesneau, R. },
    TITLE = { The use of the natural range of variability for identifying biodiversity values at risk when implementing a forest management strategy },
    JOURNAL = { Forestry Chronicle },
    YEAR = { 2008 },
    VOLUME = { 84 },
    PAGES = { 316-329 },
    NUMBER = { 3 },
    ABSTRACT = { The Natural Range of Variability is a concept used under the ecosystem management paradigm that means understanding the disturbance-driven spatial and temporal variability of the ecological systems and mimicking them in management strategies. With this project, we developed a framework that permitted addressing biodiversity issues under the lens of the Natural Range of Variability (NRV) for a managed public forest in central-west Alberta. To do so, we brought together a spatial harvest scheduler, a fire and succession landscape simulator, and a toolbox of biodiversity indicator models. Indicator models, that encompass landscape configuration, ecosystem diversity, stand internal habitat features and speciesspecific habitat supply models, were applied on the outputs of the landscape dynamics simulator to define the NRV. The risk of losing biodiversity values in applying the forest management strategy was addressed by comparing indicators outputs over the simulation horizon with their respective NRV. Results demonstrate that no forest-age-related indicator evaluated on the harvest scheduler output shows an important deviation from the NRV. However, in regards to forest cover types there is obviously a loss in ecosystem diversity, as a direct effect of the stand composition control of the silvicultural strategies. We found that patch size distribution is generally compliant with the NRV, although we observed more large patches and better connectivity for old growth patches under fire-driven landscapes. We also found that downed woody debris volume and many understory vegetation (ground lichen, herb and shrub) covers were at risk. Over the seventeen wildlife species, we detected nine species that could be jeopardized by important loss of habitats. Back-tracking bottleneck forest conditions that put these biodiversity values at risk has allowed development of recommendations with regards to landscape design and adapted practices. },
    COMMENT = { Cited By (since 1996): 3 Export Date: 10 February 2010 Source: Scopus CODEN: FRCRA },
    ISSN = { 00157546 (ISSN) },
    KEYWORDS = { BAP toolbox, Ecosystem diversity, Fire-driven landscape, Landscape configuration, Natural disturbance regime, Risk analysis, Wildlife habitat models, BAP toolbox, Ecosystem diversity, Landscape configuration, Natural disturbance regime, Wildlife habitat models, Debris, Decision making, Ecosystems, Fires, Forestry, Harvesting, Ocean habitats, Reservation systems, Risk analysis, Risk assessment, Safety factor, Scheduling, Simulators, Biodiversity, adaptive management, biodiversity, ecosystem management, environmental disturbance, forest cover, forest management, patch size, risk assessment, silviculture, size distribution, spatiotemporal analysis, timber harvesting, tracking, understory, wildlife management, Biodiversity, Decision Making, Ecosystems, Forest Management, Forestry, Harvesting, Plants, Risk Assessment, Species Identification, Wood, Alberta, Canada, North America, Neckar river virus },
    OWNER = { Luc },
    TIMESTAMP = { 2010.02.10 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-60749107997&partnerID=40&md5=4ef2dd74cd527cf4d5cd20cdd658065b },
}

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