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Ground Predators (carabid beetles)

The ECN ground predators protocol (IG)
code

IG

Protocol file

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Site types that use this protocol

Terrestrial

The ground beetles (Carabidae) are a group of predatory invertebrates. They are monitored by ECN because they might amplify changes in their prey or respond differently to environmental change from butterflies and moths. Pitfall trapping has been used extensively and successfully for this group, and a well-developed protocol already exists. Even though it is known that problems exist in interpreting data from such traps, active programmes of standardisation are in progress. Analyses of existing data have shown that carabids can be sensitive indicators of changes in management. Many beetle species are known to be sensitive to temperature changes.

Two-weekly sampling using pitfall traps is conducted.

Our field activities

MARCH

In March activities at our terrestrial sites pick up after the winter. We start monitoring frog pools, moths and spiders, and prepare for ground beetle recording in April. At freshwater sites the winter measurements continue.

See all this month's field measurements...

A moth light trap © CEH
[Photo © CEH]