Rare Invertebrates Colonizing Green Roofs in London

Glossary

Brown/biodiverse roofs

These are substrate-based (rather than sedum-based) extensive roofs created specifically for biodiversity. The substrate in many cases is recycled aggregate, and it is generally left to colonize naturally or is seeded with an annual wildflower mix or local seed source.

Pan trapping

A sampling technique similar to pitfall trapping that uses a yellow pan trap (dimensions: 250 × 350 × 40mm).

Succession

The sequential change in vegetation and the animals associated with it, either in response to an environmental change or induced by the intrinsic properties of the organisms themselves.