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What Works in Conservation 2020

William J. Sutherland
Lynn V. Dicks
Silviu O. Petrovan
et al.

5. Forest conservation

5.9 Habitat protection

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Unknown effectiveness (limited evidence)

Adopt community-based management to protect forests

1Two studies, including one replicated, before-and-after, site comparison, in Ethiopia and Nepal found that forest cover increased more in community-managed forests than in forests not managed by local communities. However, one replicated, site comparison study in Colombia found that deforestation rates in community-managed forests did not differ from deforestation rates in unmanaged forests. Assessment: unknown effectiveness — limited evidence (effectiveness 60 %; certainty 35 %; harms 0 %).


Legal protection of forests

3Two site comparison studies in Nigeria and Iran found that legal protection of forest increased tree species richness and diversity or the density of young trees. One replicated, paired site study in Mexico found no effect of forest protection on seed density and diversity of trees and shrubs. Assessment: unknown effectiveness — limited evidence (effectiveness 50 %; certainty 20 %; harms 0 %).


No evidence found (no assessment)

5We have captured no evidence for the following interventions:

  • Adopt Protected Species legislation (impact on forest management).

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