Sublethal Pyrethroid Insecticide Exposure Carries Positive Fitness Effects Over Generations in a Pest Insect
| Autor: | Aigi Margus, Leena Lindström, Juha Karvanen, Philipp Lehmann, Saija Piiroinen, Santtu Tikka |
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| Rok vydání: | 2019 |
| Předmět: |
Male
0301 basic medicine Insecticides Offspring Science Evolutionary ecology insektisidit Article Insecticide Resistance Toxicology 03 medical and health sciences 0302 clinical medicine tuhohyönteiset Pyrethrins Animals vieraslajit Leptinotarsa species invasions sopeutuminen Larva Multidisciplinary Invasive species stress tolerance biology Colorado potato beetle koloradonkuoriainen stressi 15. Life on land Pesticide biology.organism_classification resistenssi Coleoptera Pupa 030104 developmental biology Medicine Female PEST analysis Adaptation Introduced Species adaptation to stress 030217 neurology & neurosurgery |
| Zdroj: | Scientific Reports Scientific Reports, Vol 9, Iss 1, Pp 1-10 (2019) |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-019-47473-1 |
| Popis: | Stress tolerance and adaptation to stress are known to facilitate species invasions. Many invasive species are also pests and insecticides are used to control them, which could shape their overall tolerance to stress. It is well-known that heavy insecticide usage leads to selection of resistant genotypes but less is known about potential effects of mild sublethal insecticide usage. We studied whether stressful, sublethal pyrethroid insecticide exposure has within-generational and/or maternal transgenerational effects on fitness-related traits in the Colorado potato beetle (Leptinotarsa decemlineata) and whether maternal insecticide exposure affects insecticide tolerance of offspring. Sublethal insecticide stress exposure had positive within-and transgenerational effects. Insecticide-stressed larvae had higher adult survival and higher adult body mass than those not exposed to stress. Furthermore, offspring whose mothers were exposed to insecticide stress had higher larval and pupal survival and were heavier as adults (only females) than those descending from control mothers. Maternal insecticide stress did not explain differences in lipid content of the offspring. To conclude, stressful insecticide exposure has positive transgenerational fitness effects in the offspring. Therefore, unsuccessful insecticide control of invasive pest species may lead to undesired side effects since survival and higher body mass are known to facilitate population growth and invasion success. |
| Databáze: | OpenAIRE |
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