Betts2005265

Référence

Betts, M.G., Diamond, A.W., Forbes, G.J., Frego, K., Loo, J.A., Matson, B., Roberts, M.R., Villard, M.-A., Wissink, R., Wuest, L. (2005) Plantations and biodiversity: A comment on the debate in New Brunswick. Forestry Chronicle, 81(2):265-269. (Scopus )

Résumé

The importance of biodiversity has become widely recognized but the best methods for conserving forest biodiversity are still being debated. Central to this debate is the influence of plantations and managed stands on local and landscape-scale biodiversity. A recent paper by Erdle and Pollard in The Forestry Chronicle (2002), which concluded that few plantations are strict monocultures in terms of the total number of tree species, could be interpreted as making the case that plantations have relatively minor consequences for biodiversity. We argue that: (1) it is not only the number of species, but also the identities and relative abundances of species that are of ecological importance, and (2) defining biodiversity in terms of tree species alone is of limited applicability. Existing research in New Brunswick on the impact of plantations on biodiversity at the stand scale reveals potentially significant biodiversity losses, at least in certain taxa. The proposal that incorporating more structural elements (e.g., snags, coarse woody debris, vertical structure) and retaining greater tree species diversity to ameliorate negative consequences of plantations remains a hypothesis to be tested in this region. Scientific information gathered in the following areas will allow better decision making: (1) to what degree are older plantations used by native species? (2) are productivity and survivorship of vertebrates in intensively managed stands similar to those in unmanaged forest? (3) are intensively managed stands suitable habitat for non-vertebrates? (4) are there thresholds in the response of some species to landscape-scale habitat loss caused by intensive forest management?

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@ARTICLE { Betts2005265,
    AUTHOR = { Betts, M.G. and Diamond, A.W. and Forbes, G.J. and Frego, K. and Loo, J.A. and Matson, B. and Roberts, M.R. and Villard, M.-A. and Wissink, R. and Wuest, L. },
    TITLE = { Plantations and biodiversity: A comment on the debate in New Brunswick },
    JOURNAL = { Forestry Chronicle },
    YEAR = { 2005 },
    VOLUME = { 81 },
    NUMBER = { 2 },
    PAGES = { 265-269 },
    NOTE = { cited By 17 },
    ABSTRACT = { The importance of biodiversity has become widely recognized but the best methods for conserving forest biodiversity are still being debated. Central to this debate is the influence of plantations and managed stands on local and landscape-scale biodiversity. A recent paper by Erdle and Pollard in The Forestry Chronicle (2002), which concluded that few plantations are strict monocultures in terms of the total number of tree species, could be interpreted as making the case that plantations have relatively minor consequences for biodiversity. We argue that: (1) it is not only the number of species, but also the identities and relative abundances of species that are of ecological importance, and (2) defining biodiversity in terms of tree species alone is of limited applicability. Existing research in New Brunswick on the impact of plantations on biodiversity at the stand scale reveals potentially significant biodiversity losses, at least in certain taxa. The proposal that incorporating more structural elements (e.g., snags, coarse woody debris, vertical structure) and retaining greater tree species diversity to ameliorate negative consequences of plantations remains a hypothesis to be tested in this region. Scientific information gathered in the following areas will allow better decision making: (1) to what degree are older plantations used by native species? (2) are productivity and survivorship of vertebrates in intensively managed stands similar to those in unmanaged forest? (3) are intensively managed stands suitable habitat for non-vertebrates? (4) are there thresholds in the response of some species to landscape-scale habitat loss caused by intensive forest management? },
    AFFILIATION = { Greater Fundy Ecosystem Research Group, Hugh John Flemming Forestry Centre, 1350 Regent St., Fredericton, NB E3C 2G6, Canada; Atlantic Cooperative Wildlife Ecology Research Network, University of New Brunswick, P.O. Box 45111, Fredericton, NB E3B 6E1, Canada; Faculty of Forestry and Environmental Management, University of New Brunswick, P.O. Box 45111, Fredericton, NB E3B 6C2, Canada; Department of Biology, University of New Brunswick Saint John, P.O. Box 5050, Saint John, NB E2L 4L5, Canada; Natural Resources Canada, Canadian Forest Service, Atlantic Forestry Centre, P.O. Box 4000, Fredericton, NB E3B 5P7, Canada; N.B. Department of Natural Resources, 1045 Main Street, Hampton, NB E5N 8H1, Canada; Chaire de Recherche du Canada en Conservation des Paysages, Département de Biologie, Université de Moncton, Moncton, NB E1A 3E9, Canada; Fundy National Park, P.O. Box 1001, Alma, NB E4H 1B4, Canada; P.O. Box 363, Stanley, NB E6B 2K5, Canada },
    AUTHOR_KEYWORDS = { Biodiversity; Landscape scale; Plantations; Species composition; Stand structures },
    DOCUMENT_TYPE = { Review },
    DOI = { 10.5558/tfc81265-2 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-21044432477&doi=10.5558%2ftfc81265-2&partnerID=40&md5=cd8b6e7cb8c5f14fc0da384a1cb77453 },
}

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