Effect of gypsum dust on lepidopterous larvae

Airborne particulate matter is a significant concern to human health, but the effects of the deposition of dust on other species in the wild has not been well investigated. The vulnerability of insects to mineral dusts has been well known from agricultural management and the current co-occurrence of...

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Autores principales:	Kendall H. Osborne, Travis Longcore
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Fugitive dust Gypsum Larvae Lepidoptera Endangered species Environmental pollution TD172-193.5 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/25d1c4ef60a94896937d3e058e2e9f09
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spelling	oai:doaj.org-article:25d1c4ef60a94896937d3e058e2e9f092021-12-02T04:58:55ZEffect of gypsum dust on lepidopterous larvae0147-651310.1016/j.ecoenv.2021.113027https://doaj.org/article/25d1c4ef60a94896937d3e058e2e9f092021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0147651321011398https://doaj.org/toc/0147-6513Airborne particulate matter is a significant concern to human health, but the effects of the deposition of dust on other species in the wild has not been well investigated. The vulnerability of insects to mineral dusts has been well known from agricultural management and the current co-occurrence of endangered species with dust-producing industry makes this knowledge more relevant and in need of expansion. To investigate the effects of fugitive gypsum dust on an endangered butterfly species, we exposed a surrogate lepidopterous species (Gloveria medusa; Lasiocampidae) to realistic quantities of gypsum dust either on its hostplant or externally applied to larvae. We then used surviving larvae in a choice experiment to ascertain if previous exposure to gypsum contaminated hostplant affected larval preferences. Consumption of gypsum-dusted foodplant increased risk of death for larvae significantly compared with both controls (hazard ratio = 4.80; 95% CI = 2.08–11.03; p = 0.0002) and the external treatment (HR = 2.85; 95% CI 1.41–5.76; p = 0.003). External treatment elevated death rate, but not significantly (HR = 1.68; 95% CI =0.65–4.33; p = 0.28). Elevated risk of death was greater for smaller larvae. Hostplant choice after previous exposure was not significant, but suggestive that larvae consume more of the hostplant in the condition that they previously experienced (either with or without gypsum). Based on these results and previous studies, we conclude that fugitive gypsum dust may affect populations through direct mortality, reduced developmental rates, lower weights, and extended development periods that disrupt natural phenology. Use of dust to reduce insect infestations is an ancient practice, and knowledge of these effects should be revived to address chronic harms of fugitive dust on insects as they face worldwide declines.Kendall H. OsborneTravis LongcoreElsevierarticleFugitive dustGypsumLarvaeLepidopteraEndangered speciesEnvironmental pollutionTD172-193.5Environmental sciencesGE1-350ENEcotoxicology and Environmental Safety, Vol 228, Iss , Pp 113027- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Fugitive dust Gypsum Larvae Lepidoptera Endangered species Environmental pollution TD172-193.5 Environmental sciences GE1-350
spellingShingle	Fugitive dust Gypsum Larvae Lepidoptera Endangered species Environmental pollution TD172-193.5 Environmental sciences GE1-350 Kendall H. Osborne Travis Longcore Effect of gypsum dust on lepidopterous larvae
description	Airborne particulate matter is a significant concern to human health, but the effects of the deposition of dust on other species in the wild has not been well investigated. The vulnerability of insects to mineral dusts has been well known from agricultural management and the current co-occurrence of endangered species with dust-producing industry makes this knowledge more relevant and in need of expansion. To investigate the effects of fugitive gypsum dust on an endangered butterfly species, we exposed a surrogate lepidopterous species (Gloveria medusa; Lasiocampidae) to realistic quantities of gypsum dust either on its hostplant or externally applied to larvae. We then used surviving larvae in a choice experiment to ascertain if previous exposure to gypsum contaminated hostplant affected larval preferences. Consumption of gypsum-dusted foodplant increased risk of death for larvae significantly compared with both controls (hazard ratio = 4.80; 95% CI = 2.08–11.03; p = 0.0002) and the external treatment (HR = 2.85; 95% CI 1.41–5.76; p = 0.003). External treatment elevated death rate, but not significantly (HR = 1.68; 95% CI =0.65–4.33; p = 0.28). Elevated risk of death was greater for smaller larvae. Hostplant choice after previous exposure was not significant, but suggestive that larvae consume more of the hostplant in the condition that they previously experienced (either with or without gypsum). Based on these results and previous studies, we conclude that fugitive gypsum dust may affect populations through direct mortality, reduced developmental rates, lower weights, and extended development periods that disrupt natural phenology. Use of dust to reduce insect infestations is an ancient practice, and knowledge of these effects should be revived to address chronic harms of fugitive dust on insects as they face worldwide declines.
format	article
author	Kendall H. Osborne Travis Longcore
author_facet	Kendall H. Osborne Travis Longcore
author_sort	Kendall H. Osborne
title	Effect of gypsum dust on lepidopterous larvae
title_short	Effect of gypsum dust on lepidopterous larvae
title_full	Effect of gypsum dust on lepidopterous larvae
title_fullStr	Effect of gypsum dust on lepidopterous larvae
title_full_unstemmed	Effect of gypsum dust on lepidopterous larvae
title_sort	effect of gypsum dust on lepidopterous larvae
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/25d1c4ef60a94896937d3e058e2e9f09
work_keys_str_mv	AT kendallhosborne effectofgypsumdustonlepidopterouslarvae AT travislongcore effectofgypsumdustonlepidopterouslarvae
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Effect of gypsum dust on lepidopterous larvae

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