Sampling forest canopy arthropod biodiversity with three novel minimal‐cost trap designs
Sampling arthropods in the upper canopy of tall trees presents a range of challenges associated with portability, cost, placement, replication and collection. Detailed schematics and instructions are presented here for three trap designs: sticky CD cases, plastic bottle hanging flight‐intercept traps and drink bottleneck funnel crawl traps. By using simple and salvageable materials such as plastic drink bottles and compact disc cases, the financial cost of an arthropod sampling regime in the crowns of old‐growth Tasmanian stringybark trees Eucalyptus obliqua (L'Herit) was kept to a minimum. The traps collected comparatively diverse communities: the sticky traps catching high levels of Diptera, Hymenoptera and Coleoptera; the funnel traps catching Diptera, Hemiptera and Coleoptera; and the hanging traps catching Diptera, Coleoptera and Lepidoptera. The sticky traps were ranked best, and the funnels worst, when integrating relative merits of cost, transport, durability, construction, placement, retrieval, sorting and arthropod condition.
Document Type: Research Article
Affiliations: 1: School of Geography and Environmental Studies, Private Bag 78, University of Tasmania, Hobart, Tas. 7004, Australia. 2: Institute for Natural Resources, Oregon State University, Portland, OR 97207, USA. 3: Institute of Sensory Ecology, Heinrich-Heine-University, 1 D-40225 Dusseldorf, Germany. 4: School of Earth Sciences, University of Tasmania, Hobart, Tas. 7004, Australia. 5: Motupore Island Research Centre, University of Papua New Guinea, National Capital District, Papua New Guinea.
Publication date: February 1, 2012