Survey sites used to confirm the absence/presence of bark beetle species to support GB protected Zone status.
Survey undertaken includes visual inspection and destructive sampling and included baited (pheromone lure) log traps. Plots are located on a 15km grid, in spruce or pine forest locations throughout Great Britain. Plots set up in early summer visual surveys and sample collection repeated at 8 week intervals.
Count - Number of survey sites in grid square Attribution statement: Contains OS data © Crown copyright [and database right] [year].
