Individual study: Slow responses of understory plants of maple-dominated forests to white-tailed deer experimental exclusion
Collard A., Lapointe L., Ouellet J., Crête M., Lussier A., Daigle C. & Côté S.D. (2010) Slow responses of understory plants of maple-dominated forests to white-tailed deer experimental exclusion. Forest Ecology and Management, 260, 649-662
This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.
Use wire fencing to exclude large native herbivores
A replicated, paired-sites, before-and-after trial study in 1998-2006 in temperate broadleaf forest in Quebec, Canada (Collard et al. 2010) found that excluding deer increased the above ground biomass of spring-flowering herbaceous species, small seedlings and large shrubs and trees, but not of summer-flowering herbaceous species, grasses, ferns and small deciduous shrubs. Eight years after treatments, the above ground biomass of small and large spring-flowering herbaceous species had increased by 119% and -19% in grazed plots and 570% and 89% in ungrazed plots respectively. The biomass of small deciduous seedlings had decreased by 63% in grazed and 18% in ungrazed plots. The biomass of large deciduous shrubs and trees had increased by 99% in grazed and 418% in ungrazed plots. Excluding deer did not affect above ground biomass of summer-flowering herbaceous species, grasses, ferns and small deciduous shrubs. Six sites of two 625 m2 treatment plots: grazed (control) and ungrazed (deer exclosure) were established in 1998. Above ground biomass (g/m2) was estimated in 1998 and 2006 in twenty 2 × 0.1 m subplots in each plot.