4/16/2023 0 Comments Pitfall trap mhg![]() ![]() From a conservation perspective, however, including several large pitfall traps in the sampling regime would help detect rare species.Ĭarabidae, Staphylindae, Araneae, sampling, pitfall trap size, biodiversity For the purposes of ecological monitoring, using more small pitfall traps would be the most efficient sampling technique to characterize the dominant epigaeic arthropod fauna small traps collect few nontarget vertebrates, and sorting the samples involves generally less processing time. Roof size had no effect on species richness or catch rate of beetles or spiders. When catch rate data were standardized by trap circumference smaller traps collected more small-bodied carabid and staphylinid species and large traps collected more wolf spiders (Lycosidae) than smaller traps. Further tests on data standardized to trap circumference showed that catch rates are not directly proportional to trap size, and even the smallest traps collected a disproportionately high number of certain taxa. In general, larger pitfall traps collected more individuals, and more species, of all three taxa. We compared catch rates and species richness of ground beetles (Coleoptera: Carabidae), rove beetles (Coleoptera: Staphylinidae), and spiders (Araneae) across five different diameters of pitfall traps (4.5, 6.5, 11, 15, and 20 cm) and three sizes of rain covers (64, 79.2, and 225 cm 2) to determine optimal trap size for studying litter-dwelling arthropod biodiversity. Pitfall trapping is widely used in biodiversity monitoring programs to measure the diversity of organisms active within leaf-litter. Continued abuse of our services will cause your IP address to be blocked indefinitely.Cost-effective and ecologically sensitive monitoring techniques are required to assess effects of anthropogenic disturbances on biodiversity. Please fill out the CAPTCHA below and then click the button to indicate that you agree to these terms. If you wish to be unblocked, you must agree that you will take immediate steps to rectify this issue. ![]() If you do not understand what is causing this behavior, please contact us here. If you promise to stop (by clicking the Agree button below), we'll unblock your connection for now, but we will immediately re-block it if we detect additional bad behavior.
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