![]() ![]() However, relative species abundance in pitfall trap catches differs from that found using quadrat samples. It is standardized, non‐lethal, and does not alter the substrate or require frequent visits. Pitfall trapping is one of the most widely used arthropod sampling techniques. The time‐lapse camera method effectively samples litter arthropods to collect long‐term data. Hymenoptera (ants), Embioptera (webspinners), and Blattodea (cockroaches) frequently escaped from pitfalls so were particularly under‐sampled by them. Cameras programed with 1‐ or 15‐min intervals recorded around twice as many arthropod taxa per day and a third more individuals per day than pitfall traps. Likewise, a variety of colored pan traps (colored bowl or bee bowl trap) has been used to gather Hymenopteran insects ( Abrahamczyk et al., 2010 ). We tested the effectiveness of these time‐lapse cameras, and quantified escape and avoidance behavior of arthropod orders encountering pitfall traps by placing cameras programed with a range of sampling intervals above pitfalls, to assess numerical, taxonomic, and body size differences in samples collected by the two methods. Pitfall traps are effectual practice, especially for the edaphic arthropods that are generally active at soil surface ( Hansen and New, 2005 ). We test an alternative sampling method that can be left in place for several months at a time: verticallyplaced time‐lapse camera traps that have a short focal distance, enabling identification of small arthropods. Article Google Scholar Hertz M (1927) Huomioita petokuoriaisten olinpaikoista. Hancock MH, Legg CJ (2012) Pitfall trapping bias and arthropod body mass. Pitfall trapping is not ideal for long‐term sampling because it is lethal, labor‐intensive, and may have taxonomic sampling biases. Pitfall traps are commonly used for the collection of terrestrial insects in ecology and biology studies. Pitfall trapping is the standard technique to estimate activity and relative abundance of leaf litter arthropods. ![]()
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