RoyImbeauMazerolle2010

Référence

Roy, C., Imbeau, L., Mazerolle, M.J. (2010) Transformation of abandoned farm fields into coniferous plantations: Is there enough vegetation structure left to maintain winter habitat of snowshoe hares? Canadian Journal of Zoology, 88(6):579-588. (Scopus )

Résumé

Natural forests will likely be unable to sustainably fulfill society needs for wood fibers and intensively managed plantations could be an alternative source of timber in the future. Abandoned farm fields are often targeted for conversion, as they are already disturbed sites; however, they also represent high-quality habitat for species such as snowshoe hares (Lepus americanus Erxleben 1777), a keystone mammal in the boreal forest. We evaluated the effect of converting abandoned farm fields (n = 22) to conifer plantations (n = 19) on habitat use by snowshoe hares, using pellet counts and snow-tracking surveys. Both survey techniques yielded similar results: winter habitat use by hares is mostly affected by vegetation cover rather than habitat type. In the short term, plantations do not offer less protective cover than the one found in abandoned farm fields. However, upon reaching a certain height (≥7 m), plantations are mechanically pruned and lose their protective quality. Promoting silvicultural techniques that maintain lateral cover beyond a critical threshold (70%) could preserve the quality of hare habitat for an extended proportion of rotation time of the plantation.

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@ARTICLE { RoyImbeauMazerolle2010,
    AUTHOR = { Roy, C. and Imbeau, L. and Mazerolle, M.J. },
    TITLE = { Transformation of abandoned farm fields into coniferous plantations: Is there enough vegetation structure left to maintain winter habitat of snowshoe hares? },
    JOURNAL = { Canadian Journal of Zoology },
    YEAR = { 2010 },
    VOLUME = { 88 },
    PAGES = { 579-588 },
    NUMBER = { 6 },
    ABSTRACT = { Natural forests will likely be unable to sustainably fulfill society needs for wood fibers and intensively managed plantations could be an alternative source of timber in the future. Abandoned farm fields are often targeted for conversion, as they are already disturbed sites; however, they also represent high-quality habitat for species such as snowshoe hares (Lepus americanus Erxleben 1777), a keystone mammal in the boreal forest. We evaluated the effect of converting abandoned farm fields (n = 22) to conifer plantations (n = 19) on habitat use by snowshoe hares, using pellet counts and snow-tracking surveys. Both survey techniques yielded similar results: winter habitat use by hares is mostly affected by vegetation cover rather than habitat type. In the short term, plantations do not offer less protective cover than the one found in abandoned farm fields. However, upon reaching a certain height (≥7 m), plantations are mechanically pruned and lose their protective quality. Promoting silvicultural techniques that maintain lateral cover beyond a critical threshold (70%) could preserve the quality of hare habitat for an extended proportion of rotation time of the plantation. },
    COMMENT = { Export Date: 23 June 2010 Source: Scopus CODEN: CJZOA doi: 10.1139/Z10-037 },
    ISSN = { 00084301 (ISSN) },
    OWNER = { Luc },
    TIMESTAMP = { 2010.06.23 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-77953500835&partnerID=40&md5=f3aaeca7a5060a107fabd1f9fa92bba1 },
}

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