Gwent Wildlife Trust
 The impact of development on biodiversity

Can the impacts be mitigated?


Mitigation is preventing, reducing or offsetting significant impact.

Prevention

  • Consider all alternative activities / locations to prevent damage.
  • Retain key areas (important habitat, corridors, stepping stones within the development ‘footprint’.
  • Ensure continued provision of public access/enjoyment.
  • Implement schemes to protect features during construction/operation.

Reduction

  • Implement habitat repair and species restoration.
  • Translocation of species that will otherwise be seriously affected (very much a final option).
  • Install effective source management (e.g. for pollution emissions).
  • Create buffer areas around key features.

Offsetting

  • Restore and enhance of features as near to the site as possible (conditions, section 106 agreements).
  • Undertake habitat creation to replace lost features.
  • Install new artificial wildlife features (e.g. badger setts, nest boxes).
  • Impose compensation measures to provide new corridors, stepping stones.
  • Impose compensation measures to meet Biodiversity Action Plans (BAP) targets.

 

No Net Biodiversity Loss Principle

Where conflict between development and biodiversity is unavoidable (e.g. where a development is of over-riding public interest, there are no alternative sites and the effects cannot be mitigated).

Loss should be compensated for by:

  • Direct re-creation of similar quantity and quality of feature loss.
  • Where like for like is not possible, compensation should be achieved by recreating much larger areas of lower quality habitat.

 

Is there Scope for Biodiversity Gain?
  • Restore and enhance of features as near to or within the site as possible.
  • Use habitat creation and species recovery methods to provide additional features of interest.
  • Introduce new artificial wildlife features (e.g. badger sets, nest boxes).
  • Provide new public access/enjoyment.

Impact on Biodiversity: Menu