![]() We believe these findings will contribute to more appropriate sampling of the ground dwelling fauna of Patagonia as well as other arid areas, leading to more reliable diversity studies. We also suggested the use of a simple trap design (i. In addition, traps should be opened for a minimum of 10 days filled with 300 ml of 30% ethylene glycol. We conclude that in order to obtain reliable data on the structure of a community of ground-dwelling arthropods in Patagonia, at least three pitfall traps per experimental unit are required. Both preservation attributes and sampling efficiency differed between different trap designs and fluids compared. We tested four designs of traps, six types of preservative and different times of activation as well as the quantity of traps. The aim of this study was to determine the best pitfall trapping design for collecting ground-dwelling arthropods in the wind-blown and cold arid steppe areas of Patagonia. While the capture of specimens in pitfall traps largely depends on the number of individuals in the sampled area, trap design and trapping effort for a given environment, can also affect sampling success. It is particularly the simple and cheap design that renders pitfall traps very popular for sampling of epigeal fauna. The top of the container should be level with the ground. ![]() Dig a hole (save the soil to replace later) and put the container in it. Get a smooth-sided container like a soda bottle cut in half or a large margarine tub. Pitfall trapping is probably the most frequently used method for sampling ground-dwelling arthropods. Of these, pitfall traps are presumably the oldest method used for the sampling of epigeal arthropods, such as arachnids and beetles. Pitfall trapping Another way to catch soil dwellers is to set up a pitfall trap. ![]()
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