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What Works in Conservation 2020

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

4. Farmland conservation

4.3 Perennial (non-timber) crops

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Unknown effectiveness (limited evidence)

Maintain traditional orchards

1A replicated, controlled site comparison from Germany found more plant species in mown orchards than grazed or abandoned ones, but found no effects on wasps or bees. Two replicated site comparisons from Germany and Switzerland found traditional orchards managed under agri-environment schemes either did not have more plant species than controls or offered no clear benefits to birds. Assessment: unknown effectiveness — limited evidence (effectiveness 10 %; certainty 15 %).


No evidence found (no assessment)

3We have captured no evidence for the following interventions:

  • Manage short-rotation coppice to benefit wildlife (includes 8 m rides)
  • Restore or create traditional orchards

Table des illustrations

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