BachandPellerinTremblayEtAl2015

Référence

Bachand, M., Pellerin, S., Tremblay, J.-P., Cote, S.D. and Poulin, M. (2015) Compositional and functional trajectories of herbaceous communities after deer density control in clear-cut Boreal forests. Canadian Journal of Forest Research, 45(6):758-763. (Scopus )

Résumé

Overabundant populations of large herbivores have strong persistent effects on forest composition, structure, and function. However, the mechanism through which plant communities recover their original composition and function after herbivore management remains poorly understood. We assessed the temporal trajectories of the herbaceous communities in Abies balsamea (L.) Mill. and Picea glauca (Moench) Voss stands on Anticosti Island (Quebec, Canada) over 8 years following clear-cutting and deer management. The impact of deer exclusion or reduction to 7.5 and 15 deer·km–2 was compared with benchmark in situ deer densities (27 and 56 deer·km–2). Effects of deer management treatments on plant species and functional trait assemblages over time were assessed using principal response curves. Although complete deer exclusion seemed necessary to modify species composition from that occurring under intense browsing, a reduced density of 7.5 deer·km–2 was sufficient to induce significant changes in functional trait assemblages of regenerating stands. For instance, reduced deer densities favored plants with brightly colored flowers and compound inflorescences pollinated by animals and producing large seeds and fleshy fruits dispersed by animals. We conclude that the boreal forest's herbaceous communities are resilient to chronic browsing when deer population reduction and forest clearcutting are applied in synergy. © 2015, National Research Council of Canada. All Rights Reserved.

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@ARTICLE { BachandPellerinTremblayEtAl2015,
    AUTHOR = { Bachand, M. and Pellerin, S. and Tremblay, J.-P. and Cote, S.D. and Poulin, M. },
    TITLE = { Compositional and functional trajectories of herbaceous communities after deer density control in clear-cut Boreal forests },
    JOURNAL = { Canadian Journal of Forest Research },
    YEAR = { 2015 },
    VOLUME = { 45 },
    PAGES = { 758-763 },
    NUMBER = { 6 },
    NOTE = { cited By 0 },
    ABSTRACT = { Overabundant populations of large herbivores have strong persistent effects on forest composition, structure, and function. However, the mechanism through which plant communities recover their original composition and function after herbivore management remains poorly understood. We assessed the temporal trajectories of the herbaceous communities in Abies balsamea (L.) Mill. and Picea glauca (Moench) Voss stands on Anticosti Island (Quebec, Canada) over 8 years following clear-cutting and deer management. The impact of deer exclusion or reduction to 7.5 and 15 deer·km–2 was compared with benchmark in situ deer densities (27 and 56 deer·km–2). Effects of deer management treatments on plant species and functional trait assemblages over time were assessed using principal response curves. Although complete deer exclusion seemed necessary to modify species composition from that occurring under intense browsing, a reduced density of 7.5 deer·km–2 was sufficient to induce significant changes in functional trait assemblages of regenerating stands. For instance, reduced deer densities favored plants with brightly colored flowers and compound inflorescences pollinated by animals and producing large seeds and fleshy fruits dispersed by animals. We conclude that the boreal forest's herbaceous communities are resilient to chronic browsing when deer population reduction and forest clearcutting are applied in synergy. © 2015, National Research Council of Canada. All Rights Reserved. },
    AUTHOR_KEYWORDS = { Deer; Functional Traits; Plant–Herbivore Interactions; Resilience; Species Composition },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1139/cjfr-2014-0533 },
    KEYWORDS = { Animals; Plants (botany); Reforestation; Seed; Vegetation, Deer; Deer population; Forest compositions; Functional traits; Plant communities; Resilience; Species composition; Temporal trajectories, Forestry, Abies balsamea; Animalia; Cervidae; Picea glauca },
    SOURCE = { Scopus },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84930319763&partnerID=40&md5=7e92c9d14d470884dc6e0acae0ce4362 },
}

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