Study

The effects of silvicultural disturbances on the diversity of seed-producing plants in the boreal mixedwood forest

  • Published source details Bell F.W. & Newmaster S.G. (2002) The effects of silvicultural disturbances on the diversity of seed-producing plants in the boreal mixedwood forest. Canadian Journal of Forest Research, 32, 1180-1191.

Actions

This study is summarised as evidence for the following.

Action Category

Use selective thinning after restoration planting

Action Link
Forest Conservation
  1. Use selective thinning after restoration planting

    A replicated, paired sites study in 1993-1998 in boreal forest in Ontario, Canada (Bell & Newmaster 2002) found that cutting of non-coniferous species following planting conifer tree species increased the cover, but not herbaceous species richness; increased species richness but not cover of grasses; decreased the abundance but not species richness of trees. Percentage cover of herbaceous species was higher in cut than in control plots while their species richness was similar (55 vs 44%, 70 vs 69 species). Species richness of grasses was higher in cut than in control plots while their percentage cover was similar (12 vs 8 species, 15 vs 11%). Species richness and percentage cover of trees 2-10 m were lower in cut than in control plots (15 vs 24 species and 19 vs 29% respectively). For trees 0.5-2 m percentage cover was lower in cut than in control plots while species richness was similar between treatments (50 vs 66%, 39 vs 42 species). Species richness and percentage cover of trees <0.5 m were similar in cut and control plots (44 vs 48 species and 44 vs 43%). Two cutting treatment (chain saw cutting and mechanical brush cutting) and one control plots (4-12 ha) were replicated in four blocks, which had previously been clearcut and planted with white spruce Picea glauca and black spruce Picea mariana 3-4 years before herbicide treatments. Monitoring was five years after treatment.

     

Output references
What Works 2021 cover

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 18

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.


Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust