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Open AccessArticle

Detecting Soil Microarthropods with a Camera-Supported Trap

Institute for Soil Sciences and Agricultural Chemistry, Centre for Agricultural Research, Herman Ottó út 15, H-1022 Budapest, Hungary
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Insects 2020, 11(4), 244; https://doi.org/10.3390/insects11040244
Received: 28 February 2020 / Revised: 9 April 2020 / Accepted: 10 April 2020 / Published: 14 April 2020
(This article belongs to the Special Issue Elucidating the Role of Soil Arthropods in Soil Health)
There is an increasing need to monitor activity and population growth of arthropods; however, this is a time-consuming and financially demanding process. Using sensors to detect arthropods in the field can help to follow their dynamics in time. Improving our earlier device, we developed a new camera-supported probe to detect soil microarthropods. An opto-electronic sensor ring detects the caught microarthropod individuals what activates a camera. The camera takes pictures of a specimen when it arrives in the camera chamber. A vacuum device was built into the probe which pumps up the specimen from the probe to a sample container. Here, we describe the construction and operation of the probe. We investigated the precision of the process in a laboratory experiment using living microarthropods and evaluated the accuracy of the probes in a semi-natural investigation when environmental noise was present. Under semi-natural conditions, the percentages of success, i.e., the photographed specimens compared to the caught ones, were between 60% and 70% at the investigated taxa. The automatic camera shooting helped in distinguishing insects from irrelevant detections while collecting the trapped insects allowed species-level determination. This information together serves as a basis for the automatic visual recognition of microarthropod species. View Full-Text
Keywords: mesofauna; automatic detection; wireless sensor; infrared sensor; sampling method; activity; monitoring system; Collembola; Acari mesofauna; automatic detection; wireless sensor; infrared sensor; sampling method; activity; monitoring system; Collembola; Acari
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Flórián, N.; Gránicz, L.; Gergócs, V.; Tóth, F.; Dombos, M. Detecting Soil Microarthropods with a Camera-Supported Trap. Insects 2020, 11, 244.

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