TWO NOVEL FLIGHT-INTERCEPTION TRAP DESIGNS FOR LOW-COST FOREST INSECT SURVEYS

摘要

This paper introduces two passive trap designs which can be constructed on very low budgets at less than ￡1 per trap for the survey of flying Coleoptera and other insects. A trunk window trap and an aerial flight-interception trap are presented, based on commonly used designs, but using much cheaper materials. Construction diagrams are given, along with a description of trap installation and operation. Beetle species found using these methods during a survey of Ayr Gorge Woodland, a Scottish Wildlife Trust site in South-West Scotland are included. The traps were found to be relatively robust and easy to operate. It is hoped that these trap designs will be of use to others such as charitable organisations, students and amateurs who may previously have been unable to consider monitoring flying insects at large scales due to the prohibitive cost of equipment.