LaroucheRuel2015

Référence

Larouche, C. and Ruel, J.-C. (2015) Development of northern white-cedar regeneration following partial cutting, with and without deer browsing. Forests, 6(2):344-359. (Scopus )

Résumé

Northern white-cedar (Thuja occidentalis L.) is an important commercial species with a high wildlife value, both as a food source and habitat for many bird and mammal species. Concerns have been expressed about its decreasing abundance across its range, and especially in mixedwood stands, where it has to compete with several other species and can suffer from heavy browsing. In this study, we quantified the development of natural northern white-cedar seedlings and saplings under various partial cutting regimes, with and without white-tailed deer (Odocoileus virgianus Zimmerman) browsing, in three selected sites in Quebec (Canada) and in Maine (USA). Our data show that northern white-cedar regeneration was present in all studied stands, but that only a few stems were taller than 30 cm on the two sites with high densities of deer. In the absence of heavy browsing, stems reached a height of 30 cm in 11 years, and 130 cm in 28 years. Height growth of northern white-cedar regeneration increased with canopy light transmittance, while ground-level diameter increment increased after partial cutting. This suggests that partial cutting can be used in mixedwood stands to release natural northern white-cedar regeneration, but also that the recruitment of northern white-cedar seedlings to larger size classes constitutes a major challenge in stands subject to heavy deer browsing.

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@ARTICLE { LaroucheRuel2015,
    AUTHOR = { Larouche, C. and Ruel, J.-C. },
    TITLE = { Development of northern white-cedar regeneration following partial cutting, with and without deer browsing },
    JOURNAL = { Forests },
    YEAR = { 2015 },
    VOLUME = { 6 },
    PAGES = { 344-359 },
    NUMBER = { 2 },
    NOTE = { cited By 0 },
    ABSTRACT = { Northern white-cedar (Thuja occidentalis L.) is an important commercial species with a high wildlife value, both as a food source and habitat for many bird and mammal species. Concerns have been expressed about its decreasing abundance across its range, and especially in mixedwood stands, where it has to compete with several other species and can suffer from heavy browsing. In this study, we quantified the development of natural northern white-cedar seedlings and saplings under various partial cutting regimes, with and without white-tailed deer (Odocoileus virgianus Zimmerman) browsing, in three selected sites in Quebec (Canada) and in Maine (USA). Our data show that northern white-cedar regeneration was present in all studied stands, but that only a few stems were taller than 30 cm on the two sites with high densities of deer. In the absence of heavy browsing, stems reached a height of 30 cm in 11 years, and 130 cm in 28 years. Height growth of northern white-cedar regeneration increased with canopy light transmittance, while ground-level diameter increment increased after partial cutting. This suggests that partial cutting can be used in mixedwood stands to release natural northern white-cedar regeneration, but also that the recruitment of northern white-cedar seedlings to larger size classes constitutes a major challenge in stands subject to heavy deer browsing. },
    AUTHOR_KEYWORDS = { Eastern white cedar; Odocoileus virginianus; Partial cutting; Seedling and sapling growth; Thuja occidentalis; White-tailed deer },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.3390/f6020344 },
    KEYWORDS = { Eastern white cedar; Odocoileus virginianus; Partial cutting; Thuja occidentalis; White-tailed deer, Forestry, abundance; deer; growth rate; regeneration; seedling emergence; tree, Canada; Maine; Quebec [Canada]; United States, Aves; Cervidae; Mammalia; Odocoileus; Odocoileus virginianus; Thuja occidentalis },
    SOURCE = { Scopus },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84923535945&partnerID=40&md5=b18c8903e4d51c781f2f9fca4ee27e80 },
}

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