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Bagni T, Bouanou M, Siaussat D, Maria A, Fuentes A, Couzi P, Massot M. Daily temperature fluctuation interacts with the mean temperature to increase the toxicity of a pyrethroid insecticide in a moth. CHEMOSPHERE 2024; 356:141888. [PMID: 38582169 DOI: 10.1016/j.chemosphere.2024.141888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 10/25/2023] [Accepted: 04/01/2024] [Indexed: 04/08/2024]
Abstract
Climate change complicates ecotoxicology studies because species responses to pesticides depend on temperature. Classically illustrated by the effect of constant laboratory temperatures, a recent review revealed that the toxicity of pesticides is also often increased by daily temperature fluctuations. Here, we investigated the combined effects of daily temperature fluctuation and mean temperature on the toxicity of two insecticides in the moth Spodoptera littoralis. Our study tested the toxicity of chlorpyrifos and deltamethrin on larvae of six experimental groups that crossed three treatments of daily temperature fluctuations (0, 5 or 10 °C) and two treatments of mean temperatures (25 or 33 °C). We showed that daily temperature fluctuation increased larval mortality induced by chlorpyrifos and deltamethrin. However, the response differed between the organophosphorus insecticide chlorpyrifos and the pyrethroid insecticide deltamethrin. The increase in chlorpyrifos toxicity by daily temperature fluctuation did not differ between mean temperatures of 25 and 33 °C. Remarkably, the increase in deltamethrin toxicity by daily temperature fluctuation was dependent on the crossed effects of the amplitude of daily fluctuation and mean temperature. This increase in deltamethrin toxicity occurred with a daily fluctuation of only 5 °C for larvae reared at 25 °C and a daily fluctuation of 10 °C in larvae reared at 33 °C. To confidently quantify the responses of insecticide toxicity to temperature, future ecotoxicology studies will have to evaluate the generality of the interaction between the effects of daily temperature fluctuation and mean temperature.
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Affiliation(s)
- Thibaut Bagni
- Institut d'Ecologie et des Sciences de l'Environnement de Paris (iEES-Paris), Sorbonne Université, CNRS, INRAe, IRD, Université Paris Créteil, Université Paris cité, F-75005, Paris, France.
| | - Mélissa Bouanou
- Institut d'Ecologie et des Sciences de l'Environnement de Paris (iEES-Paris), Sorbonne Université, CNRS, INRAe, IRD, Université Paris Créteil, Université Paris cité, F-75005, Paris, France.
| | - David Siaussat
- Institut d'Ecologie et des Sciences de l'Environnement de Paris (iEES-Paris), Sorbonne Université, CNRS, INRAe, IRD, Université Paris Créteil, Université Paris cité, F-75005, Paris, France.
| | - Annick Maria
- Institut d'Ecologie et des Sciences de l'Environnement de Paris (iEES-Paris), Sorbonne Université, CNRS, INRAe, IRD, Université Paris Créteil, Université Paris cité, F-75005, Paris, France.
| | - Annabelle Fuentes
- Institut d'Ecologie et des Sciences de l'Environnement de Paris (iEES-Paris), Sorbonne Université, CNRS, INRAe, IRD, Université Paris Créteil, Université Paris cité, F-75005, Paris, France.
| | - Philippe Couzi
- Institut d'Ecologie et des Sciences de l'Environnement de Paris (iEES-Paris), Sorbonne Université, CNRS, INRAe, IRD, Université Paris Créteil, Université Paris cité, F-75005, Paris, France.
| | - Manuel Massot
- Institut d'Ecologie et des Sciences de l'Environnement de Paris (iEES-Paris), Sorbonne Université, CNRS, INRAe, IRD, Université Paris Créteil, Université Paris cité, F-75005, Paris, France.
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Siddique A, Shahid N, Liess M. Revealing the cascade of pesticide effects from gene to community. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 917:170472. [PMID: 38296075 DOI: 10.1016/j.scitotenv.2024.170472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/22/2024] [Accepted: 01/24/2024] [Indexed: 02/05/2024]
Abstract
Global pesticide exposure in agriculture leads to biodiversity loss, even at ultra-low concentrations below the legal limits. The mechanisms by which the effects of toxicants act at such low concentrations are still unclear, particularly in relation to their propagation across the different biological levels. In this study, we demonstrate, for the first time, a cascade of effects from the gene to the community level. At the gene level, agricultural pesticide exposure resulted in reduced genetic diversity of field-collected Gammarus pulex, a dominant freshwater crustacean in Europe. Additionally, we identified alleles associated with adaptations to pesticide contamination. At the individual level, this genetic adaptation to pesticides was linked to a lower fecundity, indicating related fitness costs. At the community level, the combined effect of pesticides and competitors caused a decline in the overall number and abundance of pesticides susceptible macroinvertebrate competing with gammarids. The resulting reduction in interspecific competition provided an advantage for pesticide-adapted G. pulex to dominate macroinvertebrate communities in contaminated areas, despite their reduced fitness due to adaptation. These processes demonstrate the complex cascade of effects, and also illustrate the resilience and adaptability of biological systems across organisational levels to meet the challenges of a changing environment.
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Affiliation(s)
- Ayesha Siddique
- Department System-Ecotoxicology, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig, Germany; Institute for Environmental Research (Biology V), RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany.
| | - Naeem Shahid
- Department System-Ecotoxicology, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig, Germany; Institute for Environmental Research (Biology V), RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany; Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, 61100 Vehari, Pakistan.
| | - Matthias Liess
- Department System-Ecotoxicology, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig, Germany; Institute for Environmental Research (Biology V), RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany.
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3
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Zhang A, Dou N, Qu Z, Guo Y, Zhou W, Wu D, Lin Z, Feng M, Cui H, Han L. Effects of the termination of LC 30 imidacloprid stress on the multigeneration adaptive strategies of Aphis glycines population. Front Physiol 2023; 14:1153249. [PMID: 37584015 PMCID: PMC10424448 DOI: 10.3389/fphys.2023.1153249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 06/26/2023] [Indexed: 08/17/2023] Open
Abstract
Aphis glycines Matsumura (Hemiptera: Aphididae) is a major soybean pest that often poses a serious threat to soybean production. Imidacloprid is one of the commonly used insecticides to control the soybean aphid. To investigate the effect of termination of imidacloprid stress on the adaptive strategies of soybean aphid populations, we studied the growth, development, and related metabolism changes when the stress was terminated after 24 generations of imidacloprid stress on A. glycines. The results show that the A. glycines population accelerated its recovery and expanded its population size across generations. The longevity of the adults of the recovering population in the F12, F18, and F24 generations, respectively, was 1.11, 1.15, and 1.11 times longer than the control, while the fecundity was 10.38%, 11.74%, and 11.61% higher than that of the control. The net reproductive rate (R 0) of the recovering population was always significantly higher than that of the control in the F1 to F24 generations. In addition, metabolisms related to the regulation of cell proliferation and oocyte meiosis were significantly upregulated in the recovering population. Even when the imidacloprid pressure disappeared, intergenerational stimuli still affected the adaptive strategies of soybean aphid populations. This effect was manifested as inhibiting the growth and development of the soybean aphid in the early generations and improving the fecundity of the soybean aphid in the later generations. Adaptive soybean aphid populations would surge in the absence of imidacloprid pressure. This study provides an important reference for exploring the adaptability of the A. glycines population under termination of stress from low lethal concentrations of imidacloprid across generations. It also provides important data for monitoring the population dynamics of A. glycines in the field and analyzing the degree of pharmacodynamic stress.
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Affiliation(s)
- Aonan Zhang
- College of Plant Protection, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Nan Dou
- College of Plant Protection, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Zhongcheng Qu
- Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences, Qiqihar City, Heilongjiang, China
| | - Yongxia Guo
- National Coarse Cereals Engineering Research Center, Key Laboratory of Low-Carbon Green Agriculture in Northeastern China, Ministry of Agriculture and Rural Affairs China and Heilongjiang Provincial Key Laboratory of Crop Pest Interaction Biology and Ecological Control, Daqing, China
| | - WenJing Zhou
- College of Plant Protection, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Dongxue Wu
- College of Plant Protection, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Zhiying Lin
- College of Plant Protection, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Min Feng
- College of Plant Protection, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Hengjia Cui
- College of Plant Protection, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Lanlan Han
- College of Plant Protection, Northeast Agricultural University, Harbin, Heilongjiang, China
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Sakka MK, Ioannou CS, Papadopoulos NT, Athanassiou CG. Residual efficacy of selected larvicides against Culex pipiens pipiens (Diptera: Culicidae) under laboratory and semi-field conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:40931-40941. [PMID: 36626059 PMCID: PMC10067649 DOI: 10.1007/s11356-022-24654-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 12/05/2022] [Indexed: 01/11/2023]
Abstract
Mosquitoes are a threat worldwide since they are vectors of important pathogens and parasites such as malaria, dengue, yellow fever, and West Nile. The residual toxicity of several commercial mosquito larvicides was evaluated for the control of Culex pipiens pipiens under controlled laboratory and semi-field conditions during late spring and summer of 2013. The evaluation included six different active ingredient formulations, i.e., diflubenzuron Du-Dim), Bacillus thuringiensis var. israelensis (Bti) (Vectobac), spinosad (Mozkill), S-methoprene (Biopren), temephos (Abate), and polydimethylsiloxane (PDMS) (Aquatain), that are currently registered of and had been registered in the past for mosquito control. Under controlled laboratory conditions, the residual activity ranged from 1 week (S-methoprene) up to 2 months (spinosad, PDMS). Exposure of larvicides under semi-field conditions resulted in noticeable differences regarding their efficacy as compared to the laboratory bioassays. Exposure of S-methoprene, Bti, and spinosad, for up to 3 days, resulted in similar adult emergence to the controls. On the other hand, the residual efficacy of diflubenzuron, temephos, and PDMS ranged from 14 to 28 days, depending on the season of exposure. Longevity and fecundity of adults that had emerged from surviving larvae, in most of the cases tested, did not differ significantly from that of the controls. The results of the present study demonstrate the necessity of both field and laboratory studies to draw safe conclusions regarding the efficacy of larvicides against mosquitoes and the selection of the proper formulation for each application scenario. In addition, defining the seasonal variation in the residual toxicity of the tested formulations could be useful for improving mosquitos' management programs.
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Affiliation(s)
- Maria K Sakka
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Phytokou Str., 38446, Nea Ionia, Magnesia, Greece.
| | - Charalampos S Ioannou
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Phytokou Str., 38446, Nea Ionia, Magnesia, Greece
| | - Nikos T Papadopoulos
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Phytokou Str., 38446, Nea Ionia, Magnesia, Greece
| | - Christos G Athanassiou
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Phytokou Str., 38446, Nea Ionia, Magnesia, Greece
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Boerlijst SP, Johnston ES, Ummels A, Krol L, Boelee E, van Bodegom PM, Schrama MJJ. Biting the hand that feeds: Anthropogenic drivers interactively make mosquitoes thrive. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159716. [PMID: 36302419 DOI: 10.1016/j.scitotenv.2022.159716] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 10/02/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
Anthropogenic stressors on the environment are increasing at unprecedented rates and include urbanization, nutrient pollution, water management, altered land use and climate change. Their effects on disease vectors are poorly understood. A series of full factorial experiments investigated how key human induced abiotic pressures, and interactions between these, affect population parameters of the cosmopolitan disease vector, Culex pipiens s.l. Selected pressures include eutrophication, salinity, mean temperature, and temperature fluctuation. Data were collected for each individual pressure and for potential interactions between eutrophication, salinization and temperature. All experiments assessed survival, time to pupation, time to emergence, sex-ratio and ovipositioning behavior. The results show that stressors affect vector survival, may speed up development and alter female to male ratio, although large differences between stressors exist to quite different extents. While positive effects of increasing levels of eutrophication on survival were consistent, negative effects of salinity on survival were only apparent at higher temperatures, thus indicating a strong interaction effect between salinization and temperature. Temperature had no independent effect on larval survival. Overall, increasing eutrophication and temperatures, and the fluctuations thereof, lowered development rate, time to pupation and time to emergence while increasing levels of salinity increased development time. Higher levels of eutrophication positively impacted egg-laying behavior; the reverse was found for salinity while no effects of temperature on egg-laying behavior were observed. Results suggest large and positive impacts of anthropogenically induced habitat alterations on mosquito population dynamics. Many of these effects are exacerbated by increasing temperatures and fluctuations therein. In a world where eutrophication and salinization are increasingly abundant, mosquitoes are likely important benefactors. Ultimately, this study illustrates the importance of including multiple and combined stressors in predictive models as well as in prevention and mitigation strategies, particularly because they resonate with possible, but yet underdeveloped action plans.
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Affiliation(s)
- S P Boerlijst
- Center for Environmental Research Leiden, Department of Environmental biology, University of Leiden, Einsteinweg 2, 2333CC Leiden, the Netherlands; Deltares, Daltonlaan 600, 3584 BK Utrecht, the Netherlands.
| | - E S Johnston
- University of Utrecht, Department Population Health Sciences, Yalelaan 7, 3584 CL Utrecht, the Netherlands
| | - A Ummels
- Center for Environmental Research Leiden, Department of Environmental biology, University of Leiden, Einsteinweg 2, 2333CC Leiden, the Netherlands
| | - L Krol
- Center for Environmental Research Leiden, Department of Environmental biology, University of Leiden, Einsteinweg 2, 2333CC Leiden, the Netherlands; Deltares, Daltonlaan 600, 3584 BK Utrecht, the Netherlands
| | - E Boelee
- Deltares, Daltonlaan 600, 3584 BK Utrecht, the Netherlands
| | - P M van Bodegom
- Center for Environmental Research Leiden, Department of Environmental biology, University of Leiden, Einsteinweg 2, 2333CC Leiden, the Netherlands
| | - M J J Schrama
- Center for Environmental Research Leiden, Department of Environmental biology, University of Leiden, Einsteinweg 2, 2333CC Leiden, the Netherlands
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Xing K, Zhang SM, Jia MQ, Zhao F. Response of wheat aphid to insecticides is influenced by the interaction between temperature amplitudes and insecticide characteristics. Front Physiol 2023; 14:1188917. [PMID: 37168226 PMCID: PMC10165072 DOI: 10.3389/fphys.2023.1188917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 04/10/2023] [Indexed: 05/13/2023] Open
Abstract
Introduction: Climate change not only directly affects the phenotype of organisms but also indirectly impacts their physiology, for example, by altering their susceptibility to insecticides. Changed diurnal temperature fluctuations are an important aspect of climate change; ignoring the impact of these fluctuations on the biological effects of various chemical insecticides can lead to inaccurate assessments of insecticide risk under the current and future climate change scenarios. Methods: In this study, we studied effects of different temperature amplitudes (± 0, ± 6, ± 12°C) at the same mean temperature (22°C) on the life history traits of a globally distributed pest (Sitobion avenae, wheat aphid), in response to low doses of two insecticides. The first, imidacloprid shows a positive temperature coefficient; the second, beta-cypermethrin has a negative temperature coefficient. Results: Compared with the results seen with the constant temperature (22°C), a wide temperature amplitude (± 12°C) amplified the negative effects of imidacloprid on the survival, longevity, and fecundity of S. avenae, but significantly increased the early fecundity of the wheat aphid. Beta-cypermethrin positively impacted the wheat aphid at all temperature amplitudes studied. Specifically, beta-cypermethrin significantly increased the survival, longevity, and fecundity of S. avenae under medium temperature amplitude (± 6°C). There were no significant differences in the survival, longevity, and the early fecundity of S. avenae when it was treated with beta-cypermethrin at the wide temperature amplitude (± 12°C). However, the negative effect of beta-cypermethrin on the intrinsic rate of increase of S. avenae decreased gradually with the increase in temperature amplitude. Discussion: In conclusion, the response of S. avenae to positive temperature coefficient insecticides was markedly affected by temperature amplitude, while negative temperature coefficient insecticides increased the environmental adaptability of S. avenae to various temperature amplitudes. Our results highlight the importance of the integrated consideration of diurnal temperature fluctuations and different temperature coefficient insecticide interactions in climate-change-linked insecticide risk assessment; these results emphasize the need for a more fine-scale approach within the context of climate change and poison sensitivity.
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Affiliation(s)
- Kun Xing
- Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
- Shanxi Shouyang Dryland Agroecosystem National Observation and Research Station, Shouyang, China
| | - Shu-Ming Zhang
- Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
- Shanxi Shouyang Dryland Agroecosystem National Observation and Research Station, Shouyang, China
| | - Mei-Qi Jia
- Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
- Shanxi Shouyang Dryland Agroecosystem National Observation and Research Station, Shouyang, China
| | - Fei Zhao
- Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
- Shanxi Shouyang Dryland Agroecosystem National Observation and Research Station, Shouyang, China
- *Correspondence: Fei Zhao,
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Bagni T, Siaussat D, Maria A, Couzi P, Maïbèche M, Massot M. The impact of temperature on insecticide sensitivity depends on transgenerational effects. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 851:158140. [PMID: 35987238 DOI: 10.1016/j.scitotenv.2022.158140] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 08/08/2022] [Accepted: 08/13/2022] [Indexed: 06/15/2023]
Abstract
The combined effects of insecticides and temperature are increasingly being studied because species are expected to change their responses to insecticides with climate warming. As recently highlighted, the impact of temperature on insecticide sensitivity might be influenced by the environment experienced by the previous generation. However, a pioneering study that showed this transgenerational effect in the mosquito Culex pipiens needs to be confirmed because two other studies did not show similar results. Here, we performed an experiment on the moth Spodoptera littoralis to test this hypothesis. We analysed reaction norms among experimental families to test transgenerational effects, i.e., the variation in the response of families to the combined effects of the insecticide chlorpyrifos and developmental temperature. Reaction norm analyses revealed that the responses of the families to chlorpyrifos and temperature differed for developmental time and larval survival, two key parameters in S. littoralis. Crucially, for larval survival, a family effect influenced the impact of temperature on chlorpyrifos sensitivity. This finding confirms the pioneering study on C. pipiens that showed transgenerational effects on the combined effects of insecticides and temperature. This result also highlights that transgenerational plasticity can be important to consider in ecotoxicology.
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Affiliation(s)
- Thibaut Bagni
- Sorbonne Université, CNRS, INRAe, Institut d'Ecologie et des Sciences de l'Environnement de Paris, iEES-Paris, F-75005 Paris, France
| | - David Siaussat
- Sorbonne Université, CNRS, INRAe, Institut d'Ecologie et des Sciences de l'Environnement de Paris, iEES-Paris, F-75005 Paris, France
| | - Annick Maria
- Sorbonne Université, CNRS, INRAe, Institut d'Ecologie et des Sciences de l'Environnement de Paris, iEES-Paris, F-75005 Paris, France
| | - Philippe Couzi
- Sorbonne Université, CNRS, INRAe, Institut d'Ecologie et des Sciences de l'Environnement de Paris, iEES-Paris, F-75005 Paris, France
| | - Martine Maïbèche
- Sorbonne Université, CNRS, INRAe, Institut d'Ecologie et des Sciences de l'Environnement de Paris, iEES-Paris, F-75005 Paris, France
| | - Manuel Massot
- Sorbonne Université, CNRS, INRAe, Institut d'Ecologie et des Sciences de l'Environnement de Paris, iEES-Paris, F-75005 Paris, France.
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Ghramh HA, Sadiq N, Naqqash MN, Abid AD, Shahzad S, Saeed S, Iqbal N, Khan KA. Transgenerational effects of lambda-cyhalothrin on Musca domestica L. (Diptera: Muscidae). Sci Rep 2022; 12:19228. [PMID: 36357409 PMCID: PMC9649667 DOI: 10.1038/s41598-022-23492-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 11/01/2022] [Indexed: 11/11/2022] Open
Abstract
The hormetic effect may cause disease control measures to fail due to inadequate treatment of human disease vectors such as houseflies. Age-stage, two-sex life table is used for accurate estimation of the hermetic impacts on insects as it allows to study sub-lethal or transgenerational effects. Pyrethroids insecticides are primarily used for the management of houseflies. This study used lambda-cyhalothrin (a pyrethroid insecticide) to quantify its transgenerational impacts on houseflies. Life table parameters of a progeny of adult houseflies exposed to LC10, LC30, and LC50 of lambda-cyhalothrin were computed. Statistically higher fecundity (71.31 per female) was observed in control treatment, while it was the adults exposed to LC50 recorded the lowest progeny. Significantly higher values for intrinsic rate of growth (r), limiting rate of growth (λ), and net reproductive rate (Ro) (0.16, 1.16, and 31.38 per day, respectively) were recorded for the control treatment of the study. Contrarily, lower values for λ, Ro, and r were (0.10, 1.10, and 9.24 per day, respectively) were noted in the LC50 treatment. Decreased population parameters suggest that lambda-cyhalothrin can be successfully used in indoor environments to control houseflies.
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Affiliation(s)
- Hamed A. Ghramh
- grid.412144.60000 0004 1790 7100Research Center for Advanced Materials Science (RCAMS), King Khalid University, P. O. Box 9004, Abha, 61413 Saudi Arabia ,grid.412144.60000 0004 1790 7100Unit of Bee Research and Honey Production, King Khalid University, P. O. Box 9004, Abha, 61413 Saudi Arabia ,grid.412144.60000 0004 1790 7100Biology Department, Faculty of Science, King Khalid University, P. O. Box 9004, 61413 Abha, Saudi Arabia
| | - Nauman Sadiq
- grid.512629.b0000 0004 5373 1288Institute of Plant Protection, Muhammad Nawaz Shareef University of Agriculture, Multan, 60000 Pakistan
| | - Muhammad Nadir Naqqash
- grid.512629.b0000 0004 5373 1288Institute of Plant Protection, Muhammad Nawaz Shareef University of Agriculture, Multan, 60000 Pakistan
| | - Allah Ditta Abid
- Department of Plant Protection, Ministry of National Food Security and Research, Islamabad, Pakistan
| | - Sohail Shahzad
- Department of Plant Protection, Ministry of National Food Security and Research, Islamabad, Pakistan
| | - Shafqat Saeed
- grid.512629.b0000 0004 5373 1288Institute of Plant Protection, Muhammad Nawaz Shareef University of Agriculture, Multan, 60000 Pakistan
| | - Naeem Iqbal
- grid.512629.b0000 0004 5373 1288Institute of Plant Protection, Muhammad Nawaz Shareef University of Agriculture, Multan, 60000 Pakistan
| | - Khalid Ali Khan
- grid.412144.60000 0004 1790 7100Research Center for Advanced Materials Science (RCAMS), King Khalid University, P. O. Box 9004, Abha, 61413 Saudi Arabia ,grid.412144.60000 0004 1790 7100Unit of Bee Research and Honey Production, King Khalid University, P. O. Box 9004, Abha, 61413 Saudi Arabia ,grid.412144.60000 0004 1790 7100Applied College, King Khalid University, P. O. Box 9004, Abha, 61413 Saudi Arabia
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Truong KN, Vu N, Doan NX, Bui CV, Le M, Vu MTT, Dinh KV. Transgenerational exposure to marine heatwaves ameliorates the lethal effect on tropical copepods regardless of predation stress. Ecol Evol 2022; 12:e9149. [PMID: 35949526 PMCID: PMC9350982 DOI: 10.1002/ece3.9149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/21/2022] [Accepted: 07/04/2022] [Indexed: 12/02/2022] Open
Abstract
Marine heatwaves (MHWs) are emerging as a severe stressor in marine ecosystems. Extreme warm sea surface temperatures during MHWs often exceed the optimal thermal range for more than one generation of tropical coastal zooplankton. However, it is relatively unknown whether transgenerational plasticity (TGP) to MHWs may shape the offspring's fitness, particularly in an ecologically relevant context with biotic interactions such as predation stress. We addressed these novel research questions by determining the survival, reproductive success, and grazing rate of the copepod Pseudodiaptomus incisus exposed to MHW and fish predator cues (FPC) for two generations (F1 and F2). The experiment was designed in a full orthogonal manner with 4 treatments in F1 and 16 treatments in F2 generation. In both generations, MHW reduced P. incisus survival, reproductive parameters, and grazing by 10%–62% in MHW, but these parameters increased by 2%–15% with exposure to FPC, particularly at control temperature. F2 reproductive success and grazing rate as indicated by cumulative fecal pellets were reduced by 20%–30% in F1‐MHW, but increased by ~2% in F1‐FPC. Strikingly, MHW exposure reduced 17%–18% survival, but transgenerational exposure to MHWs fully ameliorated its lethal effect and this transgenerational effect was independent of FPC. Increased survival came with a cost of reduced reproductive success, constrained by reduced grazing. The rapid transgenerational MHW acclimation and its associated costs are likely widespread and crucial mechanisms underlying the resilience of coastal tropical zooplankton to MHWs in tropical coastal marine ecosystems.
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Affiliation(s)
- Kiem N. Truong
- Department of Ecology University of Science, Vietnam National University Hanoi Vietnam
| | - Ngoc‐Anh Vu
- Department of Ecology University of Science, Vietnam National University Hanoi Vietnam
- Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture Nha Trang University Nha Trang City Vietnam
| | - Nam X. Doan
- Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture Nha Trang University Nha Trang City Vietnam
| | - Canh V. Bui
- Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture Nha Trang University Nha Trang City Vietnam
| | - Minh‐Hoang Le
- Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture Nha Trang University Nha Trang City Vietnam
| | - Minh T. T. Vu
- Section for Aquatic Biology and Toxicology, Department of Biosciences University of Oslo Oslo Norway
| | - Khuong V. Dinh
- Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture Nha Trang University Nha Trang City Vietnam
- Section for Aquatic Biology and Toxicology, Department of Biosciences University of Oslo Oslo Norway
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10
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Orr JA, Luijckx P, Arnoldi JF, Jackson AL, Piggott JJ. Rapid evolution generates synergism between multiple stressors: Linking theory and an evolution experiment. GLOBAL CHANGE BIOLOGY 2022; 28:1740-1752. [PMID: 33829610 DOI: 10.1111/gcb.15633] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 03/05/2021] [Indexed: 06/12/2023]
Abstract
Global change encompasses many co-occurring anthropogenic stressors. Understanding the interactions between these multiple stressors, whether they be additive, antagonistic or synergistic, is critical for ecosystem managers when prioritizing which stressors to mitigate in the face of global change. While such interactions between stressors appear prevalent, it remains unclear if and how these interactions change over time, as the majority of multiple-stressor studies rarely span multiple generations of study organisms. Although meta-analyses have reported some intriguing temporal trends in stressor interactions, for example that synergism may take time to emerge, the mechanistic basis for such observations is unknown. In this study, by analysing data from an evolution experiment with the rotifer Brachionus calyciflorus (~35 generations and 31,320 observations), we show that adaptation to multiple stressors shifts stressor interactions towards synergism. We show that trade-offs, where populations cannot optimally perform multiple tasks (i.e. adapting to multiple stressors), generate this bias towards synergism. We also show that removal of stressors from evolved populations does not necessarily increase fitness and that there is variation in the evolutionary trajectories of populations that experienced the same stressor regimes. Our results highlight outstanding questions at the interface between evolution and global change biology, and illustrate the importance of considering rapid adaptation when managing or restoring ecosystems subjected to multiple stressors under global change.
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Affiliation(s)
- James A Orr
- School of Natural Sciences, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Pepijn Luijckx
- School of Natural Sciences, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Jean-François Arnoldi
- School of Natural Sciences, Trinity College Dublin, The University of Dublin, Dublin, Ireland
- Centre National de la Recherche Scientifique, Experimental and Theoretical Ecology Station, Moulis, France
| | - Andrew L Jackson
- School of Natural Sciences, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Jeremy J Piggott
- School of Natural Sciences, Trinity College Dublin, The University of Dublin, Dublin, Ireland
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11
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Ishimota M, Kodama M, Tomiyama N. Possible enzymatic mechanism underlying chemical tolerance and characteristics of tolerant population in Scapholeberis kingi. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:18989-19002. [PMID: 34705208 DOI: 10.1007/s11356-021-17071-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 10/12/2021] [Indexed: 06/13/2023]
Abstract
To determine the potential effects of pesticides on aquatic organisms inhabiting a realistic environment, we explored the characteristics and mechanisms of chemical tolerance in Scapholeberis kingi(Cladocera). We established a chemical-tolerant population via continuous exposure to pirimicarb, an acetylcholinesterase (AChE) inhibitor, and examined the effects of pirimicarb concentration on the intrinsic growth rates (r) of tolerant cladocerans. We also explored the association between r and feeding rate and tested the involvement of antioxidant enzymes [peroxidase (PO) and superoxide dismutase] and AChE in pirimicarb sensitivity. S. kingi was continuously exposed to lethal and sublethal pirimicarb concentrations (0, 2.5, 5, and 10 µg/L) for 15 generations, and changes (half maximal effective concentration at 48 h, 48 h-EC50) in chemical sensitivity were investigated. In the F14 generation, the sensitivity of the 10 µg/L group was three times lower than that of the control group, suggesting the acquisition of chemical tolerance. Moreover, r was significantly and negatively correlated with 48 h-EC50, suggesting a fitness cost for tolerance. Surprisingly, there was no significant correlation between r and feeding rate. There was a weak but significant positive correlation between each enzyme activity and the 48 h-EC50 value (p < 0.05). Thus, oxidative stress regulation and enhanced AChE may be involved in the acquisition of chemical tolerance in cladocerans. These findings will help elucidate the characteristics and mechanisms of chemical tolerance in aquatic organisms.
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Affiliation(s)
- Makoto Ishimota
- Laboratory of Residue Analysis II, Chemistry Division, The Institute of Environmental Toxicology, Uchimoriya-machi, Joso-shi, 4321, Ibaraki, 303-0043, Japan.
| | - Mebuki Kodama
- Laboratory of Residue Analysis II, Chemistry Division, The Institute of Environmental Toxicology, Uchimoriya-machi, Joso-shi, 4321, Ibaraki, 303-0043, Japan
| | - Naruto Tomiyama
- Laboratory of Residue Analysis II, Chemistry Division, The Institute of Environmental Toxicology, Uchimoriya-machi, Joso-shi, 4321, Ibaraki, 303-0043, Japan
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12
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Meng S, Tran TT, Van Dinh K, Delnat V, Stoks R. Acute warming increases pesticide toxicity more than transgenerational warming by reducing the energy budget. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 805:150373. [PMID: 34818764 DOI: 10.1016/j.scitotenv.2021.150373] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 09/02/2021] [Accepted: 09/12/2021] [Indexed: 06/13/2023]
Abstract
There is increasing awareness that the toxicity of pesticides can to a large extent be modulated by warming, and that temporal exposure scenarios may strongly affect the impact of two stressors. Nevertheless, we lack information on how the exposure duration to warming may shape pesticide toxicity under warming. Furthermore, despite that bioenergetic responses have the potential to generate mechanistic insights in how toxicants interact with warming, this has been understudied in ecotoxicology. To investigate whether warming duration modifies pesticide toxicity, mosquito larvae were exposed to a control temperature at 20 °C or three warming treatments at 24 °C (acute, developmental and transgenerational warming), and to four pesticide treatments (solvent control, and three chlorpyrifos concentrations) in a full factorial design. Chlorpyrifos increased mortality, growth rate and the energy consumed, and reduced the AChE (acetylcholinesterase) activity, the energy available, and the net energy budget (estimated as cellular energy allocation). The warming treatments did not affect mortality, AChE activity, and the energy consumed. However, acute warming increased the growth rate and decreased the energy available, while both acute and developmental warming decreased the cellular energy allocation. A first key finding was that the lethal and sublethal effects of chlorpyrifos were less strong under warming because of a higher degradation in the medium under warming. A second key finding was that, among the warming treatments, the pesticide toxicity was more increased under acute warming than under transgenerational warming. This could be explained by the negative impact of acute warming but not transgenerational warming on the net energy budget. The results in this study provide mechanistic insights that the exposure duration to warming can play an important role in modulating the impact of pesticides under warming. Therefore, including ecologically relevant temporal scenarios of exposure to warming is important in ecotoxicological studies.
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Affiliation(s)
- Shandong Meng
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, 3000 Leuven, Belgium.
| | - Tam T Tran
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, 3000 Leuven, Belgium; Institute of Aquaculture, Nha Trang University, Khanh Hoa, Viet Nam
| | - Khuong Van Dinh
- Institute of Aquaculture, Nha Trang University, Khanh Hoa, Viet Nam
| | - Vienna Delnat
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, 3000 Leuven, Belgium
| | - Robby Stoks
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, 3000 Leuven, Belgium
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13
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Kadiene EU, Ouddane B, Gong HY, Hwang JS, Souissi S. Multigenerational study of life history traits, bioaccumulation, and molecular responses of Pseudodiaptomus annandalei to cadmium. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 230:113171. [PMID: 34999339 DOI: 10.1016/j.ecoenv.2022.113171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 12/28/2021] [Accepted: 01/03/2022] [Indexed: 06/14/2023]
Abstract
Metal pollution provide a substantial challenge for environmental health. This study investigated the multigeneration effects of cadmium on populations of the copepod species Pseudodiaptomus annandalei, exposed to a sublethal concentration, 40 µg/L of cadmium (Cd), over 10 generations. At the end of each generation, copepod individuals were collected to estimate fecundity, bioaccumulation, and real time qPCR quantification of selected differentially expressed genes to evaluate Cd effects and sex-specific responses of copepods across multiple generations. Our results revealed a sex-specific accumulation of Cd integrating 10 successive generations. The concentration of Cd was significantly higher (p < 0.05) in males than in females. We also observed a generational increase in Cd accumulation. Fecundity increased, with the exception of the first generation, possibly as a compensation for a decrease of copepod population size under Cd exposure. Protein expression of copepods exposed to Cd occurred in a sex-specific manner. Hemerythrin was mostly up-regulated in both copepod sexes exposed to Cd with males having the highest expression levels, while heat shock protein 70 was mostly up-regulated in males and down-regulated in female copepods, both exposed to Cd. Although copepods are known to develop adaptive mechanisms to tolerate toxic chemicals, continuous exposure to metals could lead to the bioaccumulation of metals in their offspring through maternal transfer and direct uptake from the medium over several generations. As a consequence, increased metal concentrations in copepods could result in physiological damage, reducing their fitness, and possibly compromise copepod population structures. This study showed that mortality, life history traits and molecular responses of a copepod species provided important toxicological endpoints and bio-markers for environmental risk assessments. Environmental pressure resulting from continuous exposure to persistent pollutants like Cd, could have evolutionary significance. The tendency for copepods to selectively adapt to a toxic environment through modifications, could increase their chance of survival over a long term.
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Affiliation(s)
- Esther U Kadiene
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, Station Marine de Wimereux, F-59000 Lille, France; Institute of Marine Biology, National Taiwan Ocean University, 20224 Keelung, Taiwan
| | - Baghdad Ouddane
- Université de Lille, Equipe Physico-Chimie de l'Environnement, Laboratoire LASIR UMR CNRS 8516, 59655 Villeneuve d'Ascq Cedex, France
| | - Hong-Yi Gong
- Department of Aquaculture, National Taiwan Ocean University, Keelung 20224, Taiwan; Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung 20224, Taiwan
| | - Jiang-Shiou Hwang
- Institute of Marine Biology, National Taiwan Ocean University, 20224 Keelung, Taiwan; Center of Excellence for Ocean Engineering, National Taiwan Ocean University, Keelung 20224, Taiwan; Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung 20224, Taiwan.
| | - Sami Souissi
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, Station Marine de Wimereux, F-59000 Lille, France.
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14
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Meng S, Delnat V, Stoks R. Multigenerational effects modify the tolerance of mosquito larvae to chlorpyrifos but not to a heat spike and do not change their synergism. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118333. [PMID: 34637829 DOI: 10.1016/j.envpol.2021.118333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 10/03/2021] [Accepted: 10/07/2021] [Indexed: 06/13/2023]
Abstract
While interactions with global warming and multigenerational effects are considered crucial to improve risk assessment of pesticides, these have rarely been studied in an integrated way. While heat extremes can magnify pesticide toxicity, no studies tested how their combined effects may transmit to the next generation. We exposed mosquito larvae in a full factorial, two-generation experiment to a heat spike followed by chlorpyrifos exposure. As expected, the heat spike magnified the chlorpyrifos-induced lethal and sublethal effects within both generations. Only when preceded by the heat spike, chlorpyrifos increased mortality and reduced the population growth rate. Moreover, chlorpyrifos-induced reductions in heat tolerance (CTmax), acetylcholinesterase (AChE) activity and development time were further magnified by the heat spike. Notably, when parents were exposed to chlorpyrifos, the chlorpyrifos-induced lethal and sublethal effects in the offspring were smaller, indicating increased tolerance to chlorpyrifos. In contrast, there was no such multigenerational effect for the heat spike. Despite the adaptive multigenerational effect to the pesticide, the synergism with the heat spike was still present in the offspring generation. Generally, our results provide important evidence that short exposure to pulse-like global change stressors can strongly affect organisms within and across generations, and highlight the importance of considering multigenerational effects in risk assessment.
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Affiliation(s)
- Shandong Meng
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Belgium.
| | - Vienna Delnat
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Belgium
| | - Robby Stoks
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Belgium
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15
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Past insecticide exposure reduces bee reproduction and population growth rate. Proc Natl Acad Sci U S A 2021; 118:2109909118. [PMID: 34810261 DOI: 10.1073/pnas.2109909118] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2021] [Indexed: 11/18/2022] Open
Abstract
Pesticides are linked to global insect declines, with impacts on biodiversity and essential ecosystem services. In addition to well-documented direct impacts of pesticides at the current stage or time, potential delayed "carryover" effects from past exposure at a different life stage may augment impacts on individuals and populations. We investigated the effects of current exposure and the carryover effects of past insecticide exposure on the individual vital rates and population growth of the solitary bee, Osmia lignaria Bees in flight cages freely foraged on wildflowers, some treated with the common insecticide, imidacloprid, in a fully crossed design over 2 y, with insecticide exposure or no exposure in each year. Insecticide exposure directly to foraging adults and via carryover effects from past exposure reduced reproduction. Repeated exposure across 2 y additively impaired individual performance, leading to a nearly fourfold reduction in bee population growth. Exposure to even a single insecticide application can have persistent effects on vital rates and can reduce population growth for multiple generations. Carryover effects had profound implications for population persistence and must be considered in risk assessment, conservation, and management decisions for pollinators to mitigate the effects of insecticide exposure.
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16
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Massot M, Bagni T, Maria A, Couzi P, Drozdz T, Malbert-Colas A, Maïbèche M, Siaussat D. Combined influences of transgenerational effects, temperature and insecticide on the moth Spodoptera littoralis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 289:117889. [PMID: 34358866 DOI: 10.1016/j.envpol.2021.117889] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 07/20/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
Climate warming is expected to impact the response of species to insecticides. Recent studies show that this interaction between insecticides and temperature can depend on other factors. Here, we tested for the influence of transgenerational effects on the Insecticide × Temperature interaction in the crop pest moth Spodoptera littoralis. Specifically, we analysed reaction norms among experimental clutches based on a split-plot design crossing the factors temperature, insecticide and clutch. The study was performed on 2280 larvae reared at four temperatures (23, 25, 27 and 29 °C), and their response to the insecticide deltamethrin (three concentrations and a control group) was tested. Temperature had a global influence with effects on larval survival, duration of development, pupal body mass, and significant reaction norms of the clutches for temperature variations of only 2 °C. In addition to the expected effect of deltamethrin on mortality, the insecticide slightly delayed the development of S. littoralis, and the effects on mortality and development differed among the clutches. Projection models integrating all the observed responses illustrated the additive effects of deltamethrin and temperature on the population multiplication rate. Variation in the response of the clutches showed that transgenerational effects influenced the impact of insecticide and temperature. Although no evidence indicated that the Insecticide × Temperature interaction depended on transgenerational effects, the studies on the dependence of the Insecticide × Temperature interaction on other factors continue to be crucial to confidently predict the combined effects of insecticides and climate warming.
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Affiliation(s)
- Manuel Massot
- Sorbonne Université, CNRS, INRAe, Institut d'Ecologie et des Sciences de l'Environnement de Paris, iEES-Paris, F-75005, Paris, France.
| | - Thibaut Bagni
- Sorbonne Université, CNRS, INRAe, Institut d'Ecologie et des Sciences de l'Environnement de Paris, iEES-Paris, F-75005, Paris, France.
| | - Annick Maria
- Sorbonne Université, CNRS, INRAe, Institut d'Ecologie et des Sciences de l'Environnement de Paris, iEES-Paris, F-75005, Paris, France.
| | - Philippe Couzi
- Sorbonne Université, CNRS, INRAe, Institut d'Ecologie et des Sciences de l'Environnement de Paris, iEES-Paris, F-75005, Paris, France.
| | - Thomas Drozdz
- Sorbonne Université, CNRS, INRAe, Institut d'Ecologie et des Sciences de l'Environnement de Paris, iEES-Paris, F-75005, Paris, France.
| | - Aude Malbert-Colas
- Sorbonne Université, CNRS, INRAe, Institut d'Ecologie et des Sciences de l'Environnement de Paris, iEES-Paris, F-75005, Paris, France.
| | - Martine Maïbèche
- Sorbonne Université, CNRS, INRAe, Institut d'Ecologie et des Sciences de l'Environnement de Paris, iEES-Paris, F-75005, Paris, France.
| | - David Siaussat
- Sorbonne Université, CNRS, INRAe, Institut d'Ecologie et des Sciences de l'Environnement de Paris, iEES-Paris, F-75005, Paris, France.
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17
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Dinh KV, Doan KLU, Doan NX, Pham HQ, Le THO, Le MH, Vu MTT, Dahms HU, Truong KN. Parental exposures increase the vulnerability of copepod offspring to copper and a simulated marine heatwave. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 287:117603. [PMID: 34147778 DOI: 10.1016/j.envpol.2021.117603] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 05/22/2021] [Accepted: 06/13/2021] [Indexed: 05/09/2023]
Abstract
Extreme temperatures from marine heatwaves (MHWs) and pollution are dominant stressors in tropical marine ecosystems. However, we know little about the role of transgenerational effects of metals and MHWs in shaping the offspring's vulnerability to these stressors. We addressed this fundamental knowledge gap by exposing the planktonic copepod Pseudodiaptomus incisus to copper (Cu: control, 15 and 60 μg L-1) under 2 temperatures (30 and a simulated marine heatwave at 34 °C) in the first generation (F1) and 16 treatments in F2: offspring from each of 4 F1 conditions (control or 15 μg Cu L-1 × 30 or 34 °C) was reared in 4 F2 conditions (control or 15 μg Cu L-1 × 30 or 34 °C). We assessed changes in copepod performance, particularly survival, adult size, grazing, and reproduction. In F1, Cu or marine heatwave (MHW) exposures reduced all fitness traits of F1; the effects were particularly strong when both stressors were present. Transgenerational effects of Cu or MHW also strongly reduced F2 performance. Direct Cu and MHW effects on the offspring were further strengthened by transgenerational effects, resulting in more substantial reductions in F2 performance when both generations were exposed to these stressors. As copepods are major food resources for corals, shrimps, or fish larvae and juveniles, strong transgenerational and direct effects of Cu and MHW can have a cascading effect on entire coastal food webs. These results highlight the importance of considering the interaction of transgenerational and direct effects of multiple stressors, particularly relevant for short-lived organisms in tropical marine ecosystems.
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Affiliation(s)
- Khuong V Dinh
- Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture, Nha Trang University, No 2 Nguyen Dinh Chieu Street, Nha Trang City, Viet Nam.
| | - Kha L U Doan
- Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture, Nha Trang University, No 2 Nguyen Dinh Chieu Street, Nha Trang City, Viet Nam; Department of Environmental Technology, Faculty of Environmental Sciences, University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Thanh Xuan, Ha Noi, Viet Nam
| | - Nam X Doan
- Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture, Nha Trang University, No 2 Nguyen Dinh Chieu Street, Nha Trang City, Viet Nam
| | - Hung Q Pham
- Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture, Nha Trang University, No 2 Nguyen Dinh Chieu Street, Nha Trang City, Viet Nam
| | - Thi Hoang Oanh Le
- Department of Environmental Technology, Faculty of Environmental Sciences, University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Thanh Xuan, Ha Noi, Viet Nam
| | - Minh-Hoang Le
- Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture, Nha Trang University, No 2 Nguyen Dinh Chieu Street, Nha Trang City, Viet Nam
| | - Minh T T Vu
- Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture, Nha Trang University, No 2 Nguyen Dinh Chieu Street, Nha Trang City, Viet Nam
| | - Hans-Uwe Dahms
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan; Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan
| | - Kiem N Truong
- Department of Ecology, Faculty of Biology, University of Science, Vietnam National University, VNU Hanoi, 334 Nguyen Trai, Thanh Xuan, Ha Noi, Viet Nam
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18
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Cao JY, Xing K, Zhao F. Complex delayed and transgenerational effects driven by the interaction of heat and insecticide in the maternal generation of the wheat aphid, Sitobion avenae. PEST MANAGEMENT SCIENCE 2021; 77:4453-4461. [PMID: 34002463 DOI: 10.1002/ps.6480] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 05/14/2021] [Accepted: 05/18/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Experience of an earlier environment plays an important role in the induction of delayed and even intergenerational phenotypes of an organism. Evidence suggests that rapid adaptation to an environmental stressor can change the performance of organisms, and even enable them to deal with other stressors. The goal of this study was to determine the effects of adult imidacloprid exposure on life-history traits within and between generations of the cereal aphid, Sitobion avenae, under three developmental conditions: constant temperature, 22°C; a low-intensity thermal condition, 22 + 34°C for 2 h per day; and a high-intensity thermal condition, 22 + 38°C for 2 h per day. RESULTS Early thermal experience not only changed the tolerance of S. avenae to the insecticide, imidacloprid, but also caused adults to incur fitness costs: the higher the heat intensity, the higher the costs. Negative transgenerational impacts of combined heat and insecticide stressors were limited to the developmental stage, whereas positive stimulation of heat intensity was observed during the adult stage. Overall, nymphal thermal experience exacerbated the detrimental effects of adult insecticidal exposure on the intrinsic rate of population increase in the maternal generation, but stimulated a net reproductive rate in the succeeding offspring generation. CONCLUSION These findings underpin the importance of considering the experience of the early developmental environment, but also enhance our understanding of the transgenerational effects of combined thermal and insecticide stressors on the population fate of S. avenae. They also help to assess the efficacy of chemical control in a warming world. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Jun-Yu Cao
- Department of Life Science, Lvliang University, Lvliang, China
- Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
| | - Kun Xing
- Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
- Shanxi Shouyang Agroecosystem National Observation and Research Station, Taiyuan, China
| | - Fei Zhao
- Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taiyuan, China
- Shanxi Shouyang Agroecosystem National Observation and Research Station, Taiyuan, China
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19
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Meng S, Tran TT, Delnat V, Stoks R. Transgenerational exposure to warming reduces the sensitivity to a pesticide under warming. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 284:117217. [PMID: 33915393 DOI: 10.1016/j.envpol.2021.117217] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 04/16/2021] [Accepted: 04/20/2021] [Indexed: 06/12/2023]
Abstract
Despite the increased attention for temporal aspects of stressor interactions and for effects of warming in ecotoxicological studies, we lack knowledge on how different exposure durations to warming may affect pesticide sensitivity. We tested how three types of exposure duration to 4 °C warming (acute, developmental and transgenerational exposure to 24 °C vs 20 °C) shape the effect of the pesticide chlorpyrifos on two ecologically relevant fitness-related traits of mosquito larvae: heat tolerance and antipredator behaviour. Transgenerational (from the parental generation) and developmental (from the egg stage) warming appeared energetically more stressful than acute warming (from the final instar), because (i) only the latter resulted in an adaptive increase of heat tolerance, and (ii) especially developmental and transgenerational warming reduced the diving responsiveness and diving time. Exposure to chlorpyrifos decreased the heat tolerance, diving responsiveness and diving time. The impact of chlorpyrifos was lower at 24 °C than at 20 °C indicating that the expected increase in toxicity at 24 °C was overruled by the observed increase in pesticide degradation. Notably, although our results suggest that transgenerational warming was energetically more stressful, it did reduce the chlorpyrifos-induced negative effects at 24 °C on heat tolerance and the alarm escape response compared to acute warming. Our results provide important evidence that the exposure duration to warming may determine the impact of a pesticide under warming, thereby identifying a novel temporal aspect of stressor interactions in risk assessment.
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Affiliation(s)
- Shandong Meng
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Belgium.
| | - Tam T Tran
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Belgium; Institute of Aquaculture, Nha Trang University, Khanh Hoa, Viet Nam
| | - Vienna Delnat
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Belgium
| | - Robby Stoks
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Belgium
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20
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Pham HT, Dinh KV, Hoang THT. Reversible and irreversible transgenerational effects of metal exposure on nine generations of a tropical micro-crustacean. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 276:116631. [PMID: 33631692 DOI: 10.1016/j.envpol.2021.116631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 01/11/2021] [Accepted: 01/28/2021] [Indexed: 06/12/2023]
Abstract
Micro-crustaceans are important grazers that control the algal blooms in eutrophic lakes. However, we know little about how these key species may be affected by long-term exposure to contaminants and when the transgenerational effects are reversible and irreversible. To address this, we investigated the effects of lead (Pb, 100 μg L-1) exposure on morphology and reproduction of Moina dubia for nine consecutive generations (F1-F9) in three treatments: control, Pb, and pPb (M. dubia from Pb-exposed parents returned to the control condition). In F1-F2, Pb did not affect morphology, and reproduction of M. dubia. In all later generations, Pb-exposed M. dubia had a smaller body and shorter antennae than those in control. In F3-F6, pPb-exposed animals showed no differences in body size and antennae compared to the control, suggesting recoverable effects. In F7-F9, the body size and antennae of pPb-exposed animals did not differ compared to Pb-exposed ones, and both were smaller than the control animals, suggesting irreversible effects. Pb exposure reduced the brood size, number of broods and total neonates per female in F3-F9, yet the reproduction could recover in pPb treatment until F7. No recovery of the brood size and number of broods per female was observed in pPb-exposed animals in the F8-F9. Our study suggests that long-term exposure to metals, here Pb, may cause irreversible impairments in morphology and reproduction of tropical urban micro-crustaceans that may lower the top-down control on algal blooms and functioning of eutrophic urban lakes.
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Affiliation(s)
- Hong T Pham
- School of Environmental Science and Technology, Hanoi University of Science and Technology, No 1 Dai Co Viet Street, Hanoi, Viet Nam; Faculty of Chemistry and Environment, Thuyloi University, No 175 Tay Son Street, Hanoi, Viet Nam
| | - Khuong V Dinh
- Department of Fisheries Biology, Nha Trang University, No 2 Nguyen Dinh Chieu Street, Nha Trang City, Viet Nam
| | - Thu-Huong T Hoang
- School of Environmental Science and Technology, Hanoi University of Science and Technology, No 1 Dai Co Viet Street, Hanoi, Viet Nam.
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21
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Benelli G, Wilke ABB, Bloomquist JR, Desneux N, Beier JC. Overexposing mosquitoes to insecticides under global warming: A public health concern? THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 762:143069. [PMID: 33127158 DOI: 10.1016/j.scitotenv.2020.143069] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/12/2020] [Accepted: 10/12/2020] [Indexed: 05/26/2023]
Abstract
The combined effect of global warming and insecticide exposure on the spread of mosquito-borne diseases is poorly studied. In our opinion, more resources should be diverted to this topic to further research efforts and deal with this increasing threat. It is particularly important to determine how Aedes, Anopheles, and Culex vector species cope with insecticide exposure under warming temperatures, as well as how both stressors may impact the activity of mosquito biocontrol agents. Herein, we promote a discussion on the topic, fostering a research agenda with insights for the longer-term implementation of mosquito control strategies under the Integrated Vector Management framework.
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Affiliation(s)
- Giovanni Benelli
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy.
| | - André B B Wilke
- Department of Public Health Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jeffrey R Bloomquist
- Neurotoxicology Laboratory, Department of Entomology and Nematology, Emerging Pathogens Institute, University of Florida, Gainesville, FL 32610, USA
| | - Nicolas Desneux
- University Côte d'Azur, INRAE, CNRS, UMR ISA, 06000 Nice, France
| | - John C Beier
- Department of Public Health Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
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22
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Wolz M, Schrader A, Müller C. Direct and delayed effects of exposure to a sublethal concentration of the insecticide λ-cyhalothrin on food consumption and reproduction of a leaf beetle. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 760:143381. [PMID: 33172643 DOI: 10.1016/j.scitotenv.2020.143381] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/23/2020] [Accepted: 10/23/2020] [Indexed: 06/11/2023]
Abstract
Anthropogenic pollution such as the application of pesticides poses a major threat to many (non-target) organisms. However, little is known about the persistence of harmful effects or potential recovery in response to a period of exposure to a sublethal insecticide dose. Adults of the mustard leaf beetle, Phaedon cochleariae (Coleoptera: Chrysomelidae), were either exposed to a sublethal concentration of the pyrethroid λ-cyhalothrin for two weeks or kept unexposed as control. During, immediately after and at a delayed time after the exposure, consumption and reproduction, i.e., number of eggs laid and hatching success, were assessed. In addition, long-term effects on unexposed offspring were investigated. Exposure to λ-cyhalothrin reduced the consumption during the insecticide exposure, but led to compensatory feeding in females at a delayed time after exposure. The reproductive output of females was impaired during and directly after λ-cyhalothrin exposure. At the delayed time point there was no clear evidence for a recovery, as the reproduction of heavier females was still negatively affected, while lighter females showed an enhanced reproduction. Persistent negative effects on unexposed offspring had been found when collected from parents directly after a λ-cyhalothrin exposure period. In contrast, in the present experiment neither negative effects on life-history traits nor on consumption were observed in unexposed offspring derived from parents at the delayed time after λ-cyhalothrin exposure. Moreover, eggs of offspring from insecticide-exposed parents showed a higher hatching success than those of offspring of unexposed parents, which may indicate transgenerational hormesis. Our results highlight that λ-cyhalothrin exposure has persistent negative effects on fitness parameters of the exposed generation. However, offspring may not be harmed if their parents had sufficient time to recover after such an insecticide exposure. Taken together, our study emphasises that the time-course of exposure to this anthropogenic pollution is crucial when determining the consequences on life-history.
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Affiliation(s)
- Marina Wolz
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 24, 33615 Bielefeld, Germany
| | - Alia Schrader
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 24, 33615 Bielefeld, Germany
| | - Caroline Müller
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 24, 33615 Bielefeld, Germany.
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23
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Dong DT, Miranda AF, Carve M, Shen H, Trestrail C, Dinh KV, Nugegoda D. Population- and sex-specific sensitivity of the marine amphipod Allorchestes compressa to metal exposure. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 206:111130. [PMID: 32866889 DOI: 10.1016/j.ecoenv.2020.111130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/31/2020] [Accepted: 08/01/2020] [Indexed: 06/11/2023]
Abstract
The sensitivity to contaminants of natural populations varies greatly depending on their historical exposure and on the sex of the individual. These factors result in great uncertainty in ecotoxicological risk assessments and challenge the protection of marine biodiversity. This study investigated the role of background pollution in the environment in shaping the sensitivity of males and females of the common marine amphipod Allorchestes compressa to the common trace marine pollutant, copper (Cu). Female and male amphipods were collected from two sites: Geelong (the polluted site) and Clifton Springs (the clean site). Amphipods were exposed to Cu treatments of 0, 50, 100, and 250 μg/L for 10 days, followed by a 10-day recovery period. Cu-exposed males from Geelong showed a reduction in feeding rate at a higher Cu concentration than males from Clifton Springs, suggesting that they have a higher tolerance to Cu than males from Clifton Springs. This can be explained by their higher base level of metallothioneins (MTs) and glutathione-S-transferase (GST), the key physiological responses for detoxification and defence against damages from Cu toxicity. Males showed a higher tolerance to Cu than females. This pattern was similar in both populations, which may be associated with a higher level of GST. During the recovery period, only males from Geelong fully recovered to the control level. Our results emphasize the importance of considering population- and sex-specific sensitivity of invertebrates to contaminants in ecotoxicological risk assessments.
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Affiliation(s)
- Dung Thi Dong
- Ecotoxicology Research Group, School of Applied Science, RMIT University, Melbourne, Australia; Department of Marine Conservation, Research Institute for Marine Fisheries, Hai Phong, Viet Nam.
| | - Ana F Miranda
- Ecotoxicology Research Group, School of Applied Science, RMIT University, Melbourne, Australia
| | - Megan Carve
- Ecotoxicology Research Group, School of Applied Science, RMIT University, Melbourne, Australia
| | - Hao Shen
- Ecotoxicology Research Group, School of Applied Science, RMIT University, Melbourne, Australia
| | - Charlene Trestrail
- Ecotoxicology Research Group, School of Applied Science, RMIT University, Melbourne, Australia
| | - Khuong V Dinh
- School of Biological Science, Washington State University, USA; Department of Fisheries Biology, Nha Trang University, Viet Nam
| | - Dayanthi Nugegoda
- Ecotoxicology Research Group, School of Applied Science, RMIT University, Melbourne, Australia
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24
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Pham HT, Dinh KV, Nguyen CC, Quoc LB. Changes in the Magnitude of the Individual and Combined Effects of Contaminants, Warming, and Predators on Tropical Cladocerans across 11 Generations. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:15287-15295. [PMID: 33200939 DOI: 10.1021/acs.est.0c05366] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
A massive challenge in ecotoxicology is assessing how the interaction of contaminants, climate change, and biotic stressors shapes the structure and functions of natural populations. Furthermore, it is not known whether contemporary evolutionary responses to multiple stressors across multigenerations may alter the interaction of these stressors. To address these issues, we exposed Moina dubia to lead (Pb, 50 μg/L) under two temperatures (25 and 28 °C) with/without predator cues from climbing perch (Anabas testudineus) for 11 generations (F1-F11). We assessed changes in M. dubia fitness, including development time, adult size, lifespan, fecundity, and neonate production. We found strong negative effects of Pb, elevated temperature, and predator cues on the fitness of M. dubia. Strikingly, Pb-induced reduction in the performance of M. dubia was stronger at 25 °C and in the absence of predator cues. The individual and interactive effects of Pb, temperature, and predator cues on M. dubia were stronger across F1-F9 and generally leveled off in F10-F11. Our results highlight the high vulnerability of M. dubia to multiple stressors, thus weakening top-down control on algal blooms in eutrophic lakes. Our study underscores the importance of integrating evolutionary responses in realistic ecotoxicological risk assessments of contaminants interacting with climatic and biotic stressors.
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Affiliation(s)
- Hong T Pham
- Department of Environmental Engineering, Thuyloi University, 175 Tay Son, Dong Da, Hanoi 116705, Vietnam
| | - Khuong V Dinh
- Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture, Nha Trang University, No 2 Nguyen Dinh Chieu Street, Nha Trang 650000, Vietnam
- School of Biological Sciences, Washington State University, Pullman, Washington 99164, United States
| | - Cuong C Nguyen
- Department of Environmental Engineering, Thuyloi University, 175 Tay Son, Dong Da, Hanoi 116705, Vietnam
| | - Lap B Quoc
- Department of Environmental Engineering, Thuyloi University, 175 Tay Son, Dong Da, Hanoi 116705, Vietnam
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25
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Bagni T, Siaussat D, Maria A, Couzi P, Maïbèche M, Massot M. A maternal effect influences sensitivity to chlorpyrifos pesticide in the pest moth Spodoptera littoralis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 204:111052. [PMID: 32739675 DOI: 10.1016/j.ecoenv.2020.111052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/16/2020] [Accepted: 07/17/2020] [Indexed: 06/11/2023]
Abstract
Transgenerational effects on sensitivity to pesticides are poorly studied. This study investigated the transgenerational influences of maternal body mass in the major pest moth Spodoptera littoralis, with a focus on sensitivity to chlorpyrifos pesticide. In 147 clutches of a laboratory strain of S. littoralis, we compared larval mortality between control larvae and larvae treated with chlorpyrifos. Because of the classic positive relationships between offspring size and maternal size and between offspring size and offspring quality, sensitivity to chlorpyrifos was predicted to be lower in larvae of larger mothers. Surprisingly, we found the opposite result, with higher pesticide toxicity in larvae of larger mothers. This result is partly explained by the lack of a relationship between larval mass and larval sensitivity to chlorpyrifos. This means that another offspring characteristic linked to maternal size should have affected larval sensitivity to chlorpyrifos. More generally, knowledge of the effects of the traits and ecological environments of mothers on offspring sensitivity to pesticides remains limited. Ecotoxicologists should pay more attention to such maternal effects on sensitivity to pesticides, both in pests and non-target species.
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Affiliation(s)
- Thibaut Bagni
- Sorbonne Université, CNRS, INRAe, IRD, Institut D'Ecologie et des Sciences de L'Environnement de Paris, IEES-Paris, 75005, Paris, France.
| | - David Siaussat
- Sorbonne Université, CNRS, INRAe, IRD, Institut D'Ecologie et des Sciences de L'Environnement de Paris, IEES-Paris, 75005, Paris, France.
| | - Annick Maria
- Sorbonne Université, CNRS, INRAe, IRD, Institut D'Ecologie et des Sciences de L'Environnement de Paris, IEES-Paris, 75005, Paris, France.
| | - Philippe Couzi
- Sorbonne Université, CNRS, INRAe, IRD, Institut D'Ecologie et des Sciences de L'Environnement de Paris, IEES-Paris, 75005, Paris, France.
| | - Martine Maïbèche
- Sorbonne Université, CNRS, INRAe, IRD, Institut D'Ecologie et des Sciences de L'Environnement de Paris, IEES-Paris, 75005, Paris, France.
| | - Manuel Massot
- Sorbonne Université, CNRS, INRAe, IRD, Institut D'Ecologie et des Sciences de L'Environnement de Paris, IEES-Paris, 75005, Paris, France.
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26
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Delnat V, Swaegers J, Asselman J, Stoks R. Reduced stress defence responses contribute to the higher toxicity of a pesticide under warming. Mol Ecol 2020; 29:4735-4748. [PMID: 33006234 DOI: 10.1111/mec.15667] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/06/2020] [Accepted: 09/11/2020] [Indexed: 11/30/2022]
Abstract
There is a pressing need to identify the molecular mechanisms underlying the, often magnifying, interactive effects between contaminants and natural stressors. Here we test our hypothesis that lower general stress defence responses contribute to synergistic interactions between stressors. We focus on the widespread pattern that many contaminants are more toxic at higher temperatures. Specifically, we tested the effects of an environmentally realistic low-effect and high-effect concentration of the pesticide chlorpyrifos under warming at the gene expression level in the northern house mosquito Culex pipiens molestus (Forskal, 1775). By applying the independent action model for combined stressors on RNA-sequencing data, we identified interactive gene expression patterns under combined exposure to chlorpyrifos and warming for general stress defence responses: protection of macromolecules, antioxidant processes, detoxification and energy metabolism/allocation. Most of these general stress defence response genes showed upregulated antagonistic interactions (i.e., were less upregulated than expected under the independent action model). This indicates that when pesticide exposure was combined with warming, the general stress defence responses were no longer buffering increased stress levels, which may contribute to a higher sensitivity to toxicants under warming. These upregulated antagonistic interactions were stronger for the high-effect chlorpyrifos concentration, indicating that exposure to this concentration under warming was most stressful. Our results highlight that quantitative analysis of the frequency and strength of the interaction types of general stress defence response genes, specifically focusing on antagonistic upregulations and synergistic downregulations, may advance our understanding of how natural stressors modify the toxicity of contaminants.
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Affiliation(s)
- Vienna Delnat
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Leuven, Belgium
| | - Janne Swaegers
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Leuven, Belgium
| | - Jana Asselman
- Blue Growth Research Lab, Ghent University, Ostend, Belgium
| | - Robby Stoks
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Leuven, Belgium
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27
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Meng S, Delnat V, Stoks R. Mosquito larvae that survive a heat spike are less sensitive to subsequent exposure to the pesticide chlorpyrifos. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 265:114824. [PMID: 32454381 DOI: 10.1016/j.envpol.2020.114824] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 04/10/2020] [Accepted: 05/14/2020] [Indexed: 06/11/2023]
Abstract
While extreme high temperatures are an important aspect of global warming, their effects on organisms are relatively understudied, especially in ecotoxicology. Sequential exposure to heat spikes and pesticides is a realistic scenario as both are typically transient stressors and are expected to further increase in frequency under global warming. We tested the effects of exposure to a lethal heat spike and subsequently to an ecologically relevant lethal pulse exposure of the pesticide chlorpyrifos in the larvae of mosquito Culex pipiens. The heat spike caused direct and delayed mortality, and resulted in a higher heat tolerance and activity of acetylcholinesterase, and a lower fat content in the survivors. The chlorpyrifos exposure caused mortality, accelerated growth rate, and decreased the heat tolerance and the activity of acetylcholinesterase. The preceding heat spike did not change how chlorpyrifos reduced the heat tolerance. Notably, the preceding heat spike did lower the lethal effect of the pesticide, which makes an important novel finding at the interface of ecotoxicology and global change biology, and adds a new dimension to the "climate-induced toxicant sensitivity" (CITS) concept. This may be due to both survival selection and cross-tolerance, and therefore likely a widespread phenomenon. Our results emphasize the importance of including extreme high temperatures as an important transient global change stressor in ecotoxicology.
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Affiliation(s)
- Shandong Meng
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Belgium.
| | - Vienna Delnat
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Belgium
| | - Robby Stoks
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Belgium
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28
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Dinh KV, Nguyen QTT, Vo TMC, Bui TB, Dao TS, Tran DM, Doan NX, Truong TSH, Wisz MS, Nielsen TG, Vu MTT, Le MH. Interactive effects of extreme temperature and a widespread coastal metal contaminant reduce the fitness of a common tropical copepod across generations. MARINE POLLUTION BULLETIN 2020; 159:111509. [PMID: 32763562 DOI: 10.1016/j.marpolbul.2020.111509] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/21/2020] [Accepted: 07/22/2020] [Indexed: 06/11/2023]
Abstract
Tropical coastal areas are increasingly exposed to temperature extremes from marine heatwaves and contaminants from anthropogenic activities. The interactive effects of these environmental changes on marine life are understudied. We investigated the direct and cross-generational effects of copper (Cu) on F0 and F1 generations of the common tropical copepod Pseudodiaptomus annandalei under extreme temperatures (30 and 34 °C). In F0, Cu exposure reduced survival and nauplii production; these patterns were more pronounced at 34 °C and in females. F0 Copepods produced more faecal pellets at 34 °C than 30 °C, indicating a higher energetic demand. In F1, the number of F1 adults was lower in CuF0 and at 34 °C. Cu-exposed F0 produced larger adult F1, while exposure to 34 °C resulted in smaller adult F1. Our results show that tropical copepods are highly vulnerable to the interactive effects of contaminants and extreme temperatures.
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Affiliation(s)
- Khuong V Dinh
- Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture, Nha Trang University, No 2 Nguyen Dinh Chieu Street, Nha Trang City, Viet Nam.
| | - Quyen T T Nguyen
- Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture, Nha Trang University, No 2 Nguyen Dinh Chieu Street, Nha Trang City, Viet Nam
| | - Thi-My-Chi Vo
- Institute of Research and Development, Duy Tan University, Da Nang, Viet Nam
| | - Trung Ba Bui
- Institute for Environment and Resources, Vietnam National University - Hochiminh City, 142 To Hien Thanh St., Dist. 10, Hochiminh City, Viet Nam
| | - Thanh-Son Dao
- Hochiminh City University of Technology, VNU - HCM, Hochiminh City, Viet Nam
| | - Duc M Tran
- Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture, Nha Trang University, No 2 Nguyen Dinh Chieu Street, Nha Trang City, Viet Nam
| | - Nam X Doan
- Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture, Nha Trang University, No 2 Nguyen Dinh Chieu Street, Nha Trang City, Viet Nam
| | - Trinh S H Truong
- Institute of Oceanography, VAST, 01 Cau Da street, Nha Trang City, Viet Nam
| | - Mary S Wisz
- World Maritime University, Fiskehamnsgatan 1, Malmö, Sweden
| | | | - Minh T T Vu
- Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture, Nha Trang University, No 2 Nguyen Dinh Chieu Street, Nha Trang City, Viet Nam
| | - Minh-Hoang Le
- Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture, Nha Trang University, No 2 Nguyen Dinh Chieu Street, Nha Trang City, Viet Nam
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29
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Meng S, Delnat V, Stoks R. The Exposure Order Strongly Modifies How a Heat Spike Increases Pesticide Toxicity. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:11476-11484. [PMID: 32804496 DOI: 10.1021/acs.est.0c03848] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The exposure order may strongly affect the impact of stressors, yet is largely ignored for the frequently occurring combinations of toxicants with natural stressors. We tested how exposure order shaped the interactive effects of serial exposure to the pesticide chlorpyrifos and to a heat spike in the larvae of the mosquito Culex pipiens. Notably, the chlorpyrifos-induced mortality was much more magnified by the heat spike and a synergism was already detected at the low concentration when exposure to chlorpyrifos followed the heat spike. This suggests that the preceding heat spike weakened the larvae as reflected in their lower net energy budget, moreover the chlorpyrifos-induced inhibition of its target enzyme (acetylcholinesterase) was only magnified by the heat spike when it was the first stressor. Also the chlorpyrifos-induced reduction in heat tolerance was stronger when the pesticide pulse followed the heat spike, and was buffered by the heat spike when this was the second stressor. Our results provide the first evidence that the exposure order can strongly change the magnifying effect of an important climate change factor on the toxicity of a pesticide. This highlights the importance of exposure order in ecological risk assessment of toxicants under realistic combinations with natural stressors.
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Affiliation(s)
- Shandong Meng
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Leuven 3000, Belgium
| | - Vienna Delnat
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Leuven 3000, Belgium
| | - Robby Stoks
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Leuven 3000, Belgium
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30
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Dinh KV, Dinh HT, Pham HT, Selck H, Truong KN. Development of metal adaptation in a tropical marine zooplankton. Sci Rep 2020; 10:10212. [PMID: 32576953 PMCID: PMC7311422 DOI: 10.1038/s41598-020-67096-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 06/02/2020] [Indexed: 12/15/2022] Open
Abstract
Tropical marine ecosystems are highly vulnerable to pollution and climate change. It is relatively unknown how tropical species may develop an increased tolerance to these stressors and the cost of adaptations. We addressed these issues by exposing a keystone tropical marine copepod, Pseudodiaptomus annandalei, to copper (Cu) for 7 generations (F1–F7) during three treatments: control, Cu and pCu (the recovery treatment). In F7, we tested the “contaminant-induced climate change sensitivity” hypothesis (TICS) by exposing copepods to Cu and extreme temperature. We tracked fitness and productivity of all generations. In F1, Cu did not affect survival and grazing but decreased nauplii production. In F2-F4, male survival, grazing, and nauplii production were lower in Cu, but recovered in pCu, indicating transgenerational plasticity. Strikingly, in F5-F6 nauplii production of Cu-exposed females increased, and did not recover in pCu. The earlier result suggests an increased Cu tolerance while the latter result revealed its cost. In F7, extreme temperature resulted in more pronounced reductions in grazing, and nauplii production of Cu or pCu than in control, supporting TICS. The results suggest that widespread pollution in tropical regions may result in high vulnerability of species in these regions to climate change.
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Affiliation(s)
- Khuong V Dinh
- School of Biological Sciences, Washington State University, Pullman, WA, USA. .,Department of Science and Environment, Roskilde University, Universitetsvej 1, 4000, Roskilde, Denmark. .,Cam Ranh Centre for Tropical Marine Research and Aquaculture, Institute of Aquaculture, Nha Trang University, No 2 Nguyen Dinh Chieu Street, Nha Trang City, Vietnam.
| | - Hanh T Dinh
- Northern National Broodstock Center for Mariculture, Research Institute for Aquaculture No 1, Xuan Dam Commune, Cat Ba, Hai Phong, Vietnam
| | - Hong T Pham
- Department of Environmental Engineering, Thuyloi University, 175 Tay Son, Dong Da, Hanoi, Vietnam
| | - Henriette Selck
- Department of Science and Environment, Roskilde University, Universitetsvej 1, 4000, Roskilde, Denmark
| | - Kiem N Truong
- Department of Ecology, University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Thanh Xuan, Ha Noi, Vietnam.
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31
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Tran TT, Dinh Van K, Janssens L, Stoks R. The effect of warming on pesticide toxicity is reversed between developmental stages in the mosquito Culex pipiens. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 717:134811. [PMID: 31836210 DOI: 10.1016/j.scitotenv.2019.134811] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 09/30/2019] [Accepted: 10/02/2019] [Indexed: 06/10/2023]
Abstract
A better understanding of interactions between pesticides and warming is important to improve ecological risk assessment in a warming world. Current insights are almost exclusively based on studies that exposed animals simultaneously to both warming and a pesticide and focused on effects during the pesticide exposure period and within a single developmental stage. We studied two ignored aspects of the interplay between warming and pesticide exposure: (i) the role of delayed effects after the pesticide exposure period, and (ii) the dependence on the developmental stage. We carried out a longitudinal experiment from the egg stage to the adult stage in the mosquito Culex pipiens where we crossed a warming treatment (20 °C vs 24 °C) with 48 h exposures to the pesticide chlorpyrifos in three developmental stages (early L1 larvae, late L4 larvae and adults). Chlorpyrifos induced mild to moderate mortality in all developmental stages (10-30%). A key finding was that warming shaped the chlorpyrifos-induced mortality but in opposite directions between stages. Chlorpyrifos was 7% less toxic under warming in L1 larvae, yet more toxic under warming in L4 larvae (22%) and in adult males (33%), while toxicity did not change under warming in adult females. We hypothesize that the general, stage-specific differences in the effects of warming on body size (increased size in early larvae, decreased size in later stages) caused the reversal of the effects of warming on toxicity between stages. Previous larval exposure to chlorpyrifos caused delayed effects that strongly reduced survival to the adult stage (̰25% at 24 °C). Notably, warming also modulated these delayed mortality effects in opposite ways between developmental stages, matching the patterns of mortality during the pesticide exposure periods. Integrating the general stage-specific patterns of how warming shapes body size is important to advance our mechanistic understanding of the interactions between pesticides and warming.
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Affiliation(s)
- Tam T Tran
- Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Leuven, Belgium; Department of Aquatic Animal Health, Institute of Aquaculture, Nha Trang University, Nha Trang, Viet nam.
| | - Khuong Dinh Van
- Department of Fisheries Biology, Institute of Aquaculture, Nha Trang University, Nha Trang, Viet nam; School of Biological Sciences, Washington State University, Pullman, WA, United States.
| | - Lizanne Janssens
- Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Leuven, Belgium.
| | - Robby Stoks
- Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Leuven, Belgium.
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Orr JA, Vinebrooke RD, Jackson MC, Kroeker KJ, Kordas RL, Mantyka-Pringle C, Van den Brink PJ, De Laender F, Stoks R, Holmstrup M, Matthaei CD, Monk WA, Penk MR, Leuzinger S, Schäfer RB, Piggott JJ. Towards a unified study of multiple stressors: divisions and common goals across research disciplines. Proc Biol Sci 2020; 287:20200421. [PMID: 32370677 DOI: 10.1098/rspb.2020.0421] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Anthropogenic environmental changes, or 'stressors', increasingly threaten biodiversity and ecosystem functioning worldwide. Multiple-stressor research is a rapidly expanding field of science that seeks to understand and ultimately predict the interactions between stressors. Reviews and meta-analyses of the primary scientific literature have largely been specific to either freshwater, marine or terrestrial ecology, or ecotoxicology. In this cross-disciplinary study, we review the state of knowledge within and among these disciplines to highlight commonality and division in multiple-stressor research. Our review goes beyond a description of previous research by using quantitative bibliometric analysis to identify the division between disciplines and link previously disconnected research communities. Towards a unified research framework, we discuss the shared goal of increased realism through both ecological and temporal complexity, with the overarching aim of improving predictive power. In a rapidly changing world, advancing our understanding of the cumulative ecological impacts of multiple stressors is critical for biodiversity conservation and ecosystem management. Identifying and overcoming the barriers to interdisciplinary knowledge exchange is necessary in rising to this challenge. Division between ecosystem types and disciplines is largely a human creation. Species and stressors cross these borders and so should the scientists who study them.
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Affiliation(s)
- James A Orr
- School of Natural Sciences, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Rolf D Vinebrooke
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada
| | | | - Kristy J Kroeker
- Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA, USA
| | - Rebecca L Kordas
- Department of Life Sciences, Imperial College London, Silwood Park Campus, Berkshire, UK
| | - Chrystal Mantyka-Pringle
- School of Environment and Sustainability, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.,Wildlife Conservation Society Canada, Whitehorse, Yukon Territory, Canada
| | - Paul J Van den Brink
- Aquatic Ecology and Water Quality Management Group, Wageningen University, PO Box 47, 6700 AA Wageningen, The Netherlands.,Wageningen Environmental Research, PO Box 47, 6700 AA Wageningen, The Netherlands
| | - Frederik De Laender
- Research Unit of Environmental and Evolutionary Biology, Namur Institute of Complex Systems, and Institute of Life, Earth, and the Environment, University of Namur, Rue de Bruxelles 61, 5000 Namur, Belgium
| | - Robby Stoks
- Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Leuven, Belgium
| | | | | | - Wendy A Monk
- Environment and Climate Change Canada at Canadian Rivers Institute, Faculty of Forestry and Environmental Management, University of New Brunswick, Fredericton, New Brunswick, Canada
| | - Marcin R Penk
- School of Natural Sciences, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Sebastian Leuzinger
- Institute for Applied Ecology, Auckland University of Technology, Auckland, New Zealand
| | - Ralf B Schäfer
- Quantitative Landscape Ecology, iES-Institute for Environmental Sciences, University Koblenz-Landau, Landau in der Pfalz, Germany
| | - Jeremy J Piggott
- School of Natural Sciences, Trinity College Dublin, The University of Dublin, Dublin, Ireland
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Toxværd K, Dinh KV, Henriksen O, Hjorth M, Nielsen TG. Delayed effects of pyrene exposure during overwintering on the Arctic copepod Calanus hyperboreus. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 217:105332. [PMID: 31698182 DOI: 10.1016/j.aquatox.2019.105332] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 10/10/2019] [Accepted: 10/11/2019] [Indexed: 06/10/2023]
Abstract
Calanus hyperboreus is the largest copepod and a key species in the Arctic food web. During the spring bloom, C. hyperboreus builds up large lipid reserves, which enable it to survive and produce eggs during overwintering. The ecological effects of oil exposure on overwintering C. hyperboreus are unknown. The present study empirically tested if exposure to the polycyclic aromatic hydrocarbon (PAH) pyrene from crude oil affects the survival, egg production, and hatching success of overwintering C. hyperboreus. We also tested the delayed effects on faecal pellet production and lipid recovery in clean seawater. Direct exposure did not reduce survival and egg production, but reduced hatching success 3-18 times by the end of the exposure period. Remarkably, we documented strong delayed effects of pyrene on faecal pellet production and the recovery of lipid reserves. The current study reveals a high vulnerability of this key species of Arctic zooplankton to oil exposure during winter. Together with our previous study on C. glacialis, we complete the picture of the impact of oil on the largest and most lipid-rich copepod C. hyperboreus, which potentially can have huge ecological consequences for the fragile Arctic marine food web.
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Affiliation(s)
- Kirstine Toxværd
- Section for Oceans and Arctic, National Institute of Aquatic Resources, Technical University of Denmark, Kemitorvet Building 201, 2800 Kgs. Lyngby, Denmark; Cowi Denmark, Department of Water & Nature, Parallelvej 2, 2800 Kgs. Lyngby, Denmark.
| | - Khuong V Dinh
- Section for Oceans and Arctic, National Institute of Aquatic Resources, Technical University of Denmark, Kemitorvet Building 201, 2800 Kgs. Lyngby, Denmark.
| | - Ole Henriksen
- Section for Oceans and Arctic, National Institute of Aquatic Resources, Technical University of Denmark, Kemitorvet Building 201, 2800 Kgs. Lyngby, Denmark.
| | - Morten Hjorth
- Cowi Denmark, Department of Water & Nature, Parallelvej 2, 2800 Kgs. Lyngby, Denmark.
| | - Torkel Gissel Nielsen
- Section for Oceans and Arctic, National Institute of Aquatic Resources, Technical University of Denmark, Kemitorvet Building 201, 2800 Kgs. Lyngby, Denmark.
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Müller T, Römer CI, Müller C. Parental sublethal insecticide exposure prolongs mating response and decreases reproductive output in offspring. J Appl Ecol 2019. [DOI: 10.1111/1365-2664.13398] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Thorben Müller
- Department of Chemical Ecology Bielefeld University Bielefeld Germany
| | - Clara Isis Römer
- Department of Chemical Ecology Bielefeld University Bielefeld Germany
| | - Caroline Müller
- Department of Chemical Ecology Bielefeld University Bielefeld Germany
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Tran TT, Janssens L, Dinh KV, Stoks R. An adaptive transgenerational effect of warming but not of pesticide exposure determines how a pesticide and warming interact for antipredator behaviour. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 245:307-315. [PMID: 30447473 DOI: 10.1016/j.envpol.2018.11.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 10/18/2018] [Accepted: 11/07/2018] [Indexed: 06/09/2023]
Abstract
The impact of pesticides on organisms may strongly depend on temperature. While many species will be exposed to pesticides and warming both in the parental and offspring generations, transgenerational effects of pesticides under warming are still poorly studied, particularly for behaviour. We therefore studied the single and combined effects of exposure to the pesticide chlorpyrifos (CPF) and warming both within and across generations on antipredator behaviour of larvae of the vector mosquito Culex pipiens. Within each generation pesticide exposure and warming reduced the escape diving time, making the larvae more susceptible to predation. Pesticide exposure of the parents did not affect offspring antipredator behaviour. Yet, parental exposure to warming determined how warming and the pesticide interacted in the offspring generation. When parents were reared at 24 °C, warming no longer reduced offspring diving times in the solvent control, suggesting an adaptive transgenerational effect to prepare the offspring to better deal with a higher predation risk under warming. Related to this, the CPF-induced reduction in diving time was stronger at 20 °C than at 24 °C, except in the offspring whose parents had been exposed to 24 °C. This dependency of the widespread interaction between warming and pesticide exposure on an adaptive transgenerational effect of warming is an important finding at the interface of global change ecology and ecotoxicology.
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Affiliation(s)
- Tam T Tran
- Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Leuven, Belgium; Department of Aquatic Animal Health, Institute of Aquaculture, Nha Trang University, Nha Trang, Viet Nam.
| | - Lizanne Janssens
- Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Leuven, Belgium.
| | - Khuong V Dinh
- Department of Fisheries Biology, Institute of Aquaculture, Nha Trang University, Nha Trang, Viet Nam; National Institute of Aquatic Resources, Technical University of Denmark, Lyngby, Denmark.
| | - Robby Stoks
- Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Leuven, Belgium.
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