Estimating the effect of tracking tag weight on insect movement using video analysis: A case study with a flightless orthopteran.

In this study, we describe an inexpensive and rapid method of using video analysis and identity tracking to measure the effects of tag weight on insect movement. In a laboratory experiment, we assessed the tag weight and associated context-dependent effects on movement, choosing temperature as a fac...

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Autores principales:	Oto Kaláb, David Musiolek, Pavel Rusnok, Petr Hurtik, Martin Tomis, Petr Kočárek
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/383672a94f0c47f4beb894c966264cd3
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id	oai:doaj.org-article:383672a94f0c47f4beb894c966264cd3
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spelling	oai:doaj.org-article:383672a94f0c47f4beb894c966264cd32021-12-02T20:04:56ZEstimating the effect of tracking tag weight on insect movement using video analysis: A case study with a flightless orthopteran.1932-620310.1371/journal.pone.0255117https://doaj.org/article/383672a94f0c47f4beb894c966264cd32021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0255117https://doaj.org/toc/1932-6203In this study, we describe an inexpensive and rapid method of using video analysis and identity tracking to measure the effects of tag weight on insect movement. In a laboratory experiment, we assessed the tag weight and associated context-dependent effects on movement, choosing temperature as a factor known to affect insect movement and behavior. We recorded the movements of groups of flightless adult crickets Gryllus locorojo (Orthoptera:Gryllidae) as affected by no tag (control); by light, medium, or heavy tags (198.7, 549.2, and 758.6 mg, respectively); and by low, intermediate, or high temperatures (19.5, 24.0, and 28.3°C, respectively). Each individual in each group was weighed before recording and was recorded for 3 consecutive days. The mean (± SD) tag mass expressed as a percentage of body mass before the first recording was 26.8 ± 3.7% with light tags, 72 ± 11.2% with medium tags, and 101.9 ± 13.5% with heavy tags. We found that the influence of tag weight strongly depended on temperature, and that the negative effects on movement generally increased with tag weight. At the low temperature, nearly all movement properties were negatively influenced. At the intermediate and high temperatures, the light and medium tags did not affect any of the movement properties. The continuous 3-day tag load reduced the average movement speed only for crickets with heavy tags. Based on our results, we recommend that researchers consider or investigate the possible effects of tags before conducting any experiment with tags in order to avoid obtaining biased results.Oto KalábDavid MusiolekPavel RusnokPetr HurtikMartin TomisPetr KočárekPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 7, p e0255117 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Oto Kaláb David Musiolek Pavel Rusnok Petr Hurtik Martin Tomis Petr Kočárek Estimating the effect of tracking tag weight on insect movement using video analysis: A case study with a flightless orthopteran.
description	In this study, we describe an inexpensive and rapid method of using video analysis and identity tracking to measure the effects of tag weight on insect movement. In a laboratory experiment, we assessed the tag weight and associated context-dependent effects on movement, choosing temperature as a factor known to affect insect movement and behavior. We recorded the movements of groups of flightless adult crickets Gryllus locorojo (Orthoptera:Gryllidae) as affected by no tag (control); by light, medium, or heavy tags (198.7, 549.2, and 758.6 mg, respectively); and by low, intermediate, or high temperatures (19.5, 24.0, and 28.3°C, respectively). Each individual in each group was weighed before recording and was recorded for 3 consecutive days. The mean (± SD) tag mass expressed as a percentage of body mass before the first recording was 26.8 ± 3.7% with light tags, 72 ± 11.2% with medium tags, and 101.9 ± 13.5% with heavy tags. We found that the influence of tag weight strongly depended on temperature, and that the negative effects on movement generally increased with tag weight. At the low temperature, nearly all movement properties were negatively influenced. At the intermediate and high temperatures, the light and medium tags did not affect any of the movement properties. The continuous 3-day tag load reduced the average movement speed only for crickets with heavy tags. Based on our results, we recommend that researchers consider or investigate the possible effects of tags before conducting any experiment with tags in order to avoid obtaining biased results.
format	article
author	Oto Kaláb David Musiolek Pavel Rusnok Petr Hurtik Martin Tomis Petr Kočárek
author_facet	Oto Kaláb David Musiolek Pavel Rusnok Petr Hurtik Martin Tomis Petr Kočárek
author_sort	Oto Kaláb
title	Estimating the effect of tracking tag weight on insect movement using video analysis: A case study with a flightless orthopteran.
title_short	Estimating the effect of tracking tag weight on insect movement using video analysis: A case study with a flightless orthopteran.
title_full	Estimating the effect of tracking tag weight on insect movement using video analysis: A case study with a flightless orthopteran.
title_fullStr	Estimating the effect of tracking tag weight on insect movement using video analysis: A case study with a flightless orthopteran.
title_full_unstemmed	Estimating the effect of tracking tag weight on insect movement using video analysis: A case study with a flightless orthopteran.
title_sort	estimating the effect of tracking tag weight on insect movement using video analysis: a case study with a flightless orthopteran.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/383672a94f0c47f4beb894c966264cd3
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Estimating the effect of tracking tag weight on insect movement using video analysis: A case study with a flightless orthopteran.

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