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Providing evidence to improve practice

Individual study: Forest birds use 'corridors' between boreal forest patches in Alberta, Canada

Published source details

Machtans C.S., Villard M.A. & Hannon S.J. (1996) Use of riparian buffer strips as movement corridors by forest birds. Conservation Biology, 10, 1366-1379

This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.

Ensure connectivity between habitat patches Bird Conservation

A replicated, controlled study in boreal forests in 1993-5 in Alberta, Canada (Machtans et al. 1996), found that significantly higher abundances of the ten most common understorey birds were found in three riparian corridors between forest patches than in three clearcuts between patches. Only two of the ten were found nesting or foraging in clearcuts. In addition, significantly more juveniles used corridors following logging, than before, but only in one site. No more birds used the buffer strips near logged forest than similar strips near un-logged forest, when controlling for local abundances. Corridors consisted of 1-5-m of riparian vegetation and 90-110 m of forest. Visual surveys were used in clearcuts and mist nets in corridors.