Beetles from old forest (Quercus robur) at Larvik
CitationWetherbee R, Birkemoe T, Sverdrup-Thygeson A, Ligaard S, Tourani M (2020). Beetles from old forest (Quercus robur) at Larvik. Norwegian University of Life Sciences (NMBU). Occurrence dataset https://doi.org/10.15468/5bxyph accessed via GBIF.org on 2021-06-20.
DescriptionSampling was carried out on 40 oaks (Quercus robur) in the vicinity of Larvik municipality in southern Norway. Sampling was conducted with flight intercept traps: 20x40cm windows with a funnel below leading to a vial containing ethylene glycol, water (4:1 mixture) and a drop of detergent used as a surfactant. Each tree was sampled with one trap hanging in the canopy. Traps were activated in May and emptied once a month until the end of August in 2017 and 2018. All beetles were identified to the species level following the taxonomy of The Norwegian Biodiversity Information Centre (http://doi.org/10.15468/4dd3tf).
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