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Providing evidence to improve practice

Individual study: Reforested and managed woodlands experience net increases in species richness through time

Published source details

Brooks E.W. & Bonter D.N. (2010) Long-term changes in avian community structure in a successional, forested, and managed plot in a reforesting landscape. The Wilson Journal of Ornithology, 122, 288-295

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

Restore or create forests Bird Conservation

A controlled study in the summers of 1969-2007 in New York State, USA (Brooks & Bonter 2010), found that species richness increased on a 9.3 ha forest site restored from an agricultural field (17 species increased and nine declined) and on a 10.7 ha site maintained at an early successional stage (an actively managed Christmas tree farm), but stayed constant at a 16.6 ha forest site. Total territory density declined on the restored site (from 96 territories in 1969-1973 to 57 in 1999-2003), although Neotropical migrant territories increased from zero to 30 and woodland species also increased. Territory density increased significantly in the managed plot (breeding pair density increased for 11 species and declined for three). The forest plot exhibited no significant difference in territory density or species richness over time.