Keywords: Animal welfare, Araneae, by-catch, Carabidae, capture efficiency, pitfall trapping, sampling design Knowledge of the variation in the catching efficiency of differently coloured pitfall traps is important for designing invertebrate surveys, both from a scientific and ethical point of view. The effect of colour on the catches did not differ significantly between sites. Differences among numbers caught were significant for Apidae, Araneae, Carabidae and Diptera. Isopoda were most abundant in the catches of green and brown traps. White and yellow pitfall traps caught by far the highest numbers of individuals of Apidae, Araneae, Carabidae, Diptera and Formicidae. ![]() In this study the abundances of seven invertebrate groups (Apidae, Araneae, Carabidae, Diptera, Formicidae, Isopoda, Vespinae) caught in pitfall traps of different colours (white, yellow, green, brown) at a dense and dry grassland site in Northwestern Germany were determined. There are many studies on the effect of design of pitfall traps on their capture efficiency but, so far, none on the influence of the colour of the pitfall trap. 107 (2): 277-280, 2010 | DOI: 10.14411/eje.2010.036 Effect of the colour of pitfall traps on their capture efficiency of carabid beetles (Coleoptera: Carabidae), spiders (Araneae) and other arthropods Sascha BUCHHOLZ 1, Anna-Marie JESS 1, Florian HERTENSTEIN 1, Jens SCHIRMEL 2 1ĭepartment of Community Ecology, Institute of Landscape Ecology, University of Münster, Robert-Koch-Straße 26, 48149 Münster, Germany e-mails: 2īiological Station Isle of Hiddensee, University of Greifswald, Biologenweg 15, 18565 Hiddensee, Germany e-mail: trapping is one of the most commonly used methods of sampling ground-dwelling arthropods.
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