Relations of native and exotic species 5 years after clearcutting with and without herbicide and logging debris treatments

  • Published source details Peter D.H. & Harrington T.B.P.D. (2012) Relations of native and exotic species 5 years after clearcutting with and without herbicide and logging debris treatments.


This study is summarised as evidence for the following.

Action Category

Remove woody debris after timber harvest

Action Link
Forest Conservation
  1. Remove woody debris after timber harvest

    A replicated, randomized, controlled study in 1999-2006 in temperate coniferous forest in Washington State and Oregon, USA (Peter & Harrington 2012) found no effect of different woody debris removal treatments after clearcutting on cover of Douglas-fir Pseudotsuga menziesii and understory vegetation. At all three sites (respectively), cover was similar between treatments for Douglas-fir (control: 13%, 13% and 62%; piled/removed: 11%, 15% and 70%) and understory vegetation (control: 92%, 118% and 73%; piled/removed: 81%, 117% and 5%). Four blocks of 8-16 plots where woody debris had been piled or removed after clearcutting and 8-16 control treatment plots (0.26 ha) were established in each of three sites, all clearcut and planted with Douglas-fir in 1999-2003. Data were collected five years after clearcutting.


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 19

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