Potential for insecticide-mediated shift in ecological dominance between two competing aphid species

Mohammed, Abd Allah A. H.; Desneux, Nicolas; Monticelli, Lucie S.; Fan, Yinjun; XueYan, Shi; Guedes, Raul Narciso C.; Gao, Xiwu

doi:10.1016/j.chemosphere.2019.03.114

Cited by 31 publications

(14 citation statements)

References 69 publications

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“…Dominance shifts alter community richness or diversity (Dangles & Malmqvist, 2004), and ecosystem functioning such as through effects on productivity (Ma et al., 2017; Zhang et al., 2018). Importantly, dominance changes in herbivores in an agricultural ecosystem can affect crop yield by influencing pollination (Luong et al., 2019), pest damage and disease transmission (Domier, 2008), leading to modified pest management programmes (Mohammed et al., 2019). However, the mechanisms underlying dominance hierarchy changes driven by climate warming are not well documented.…”

Section: Introductionmentioning

confidence: 99%

Extreme climate shifts pest dominance hierarchy through thermal evolution and transgenerational plasticity

Zhu

Hoffmann

et al. 2021

Functional Ecology

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Dominance hierarchy, the dominance ranking of members in a community, is determined by the relative population fitness of coexisting species. Climate change can shift dominance hierarchies depending on how species respond to changing climate, but ecological mechanisms underlying such shifts remain largely unknown. Specifically, dominance hierarchy shifts under climate change have rarely been linked to eco‐evolutionary responses to thermal extremes, which we consider in this study. We conducted an 8‐year field survey to link extreme high‐temperature events to the shift in dominance hierarchy of two worldwide cereal aphid species (Rhopalosiphum padi and Sitobion avenae), which may respond rapidly through evolutionary or plastic responses to thermal extremes due to their short generation duration, clonal structure and high thermal sensitivity. To further understand the mechanism involved in this change in species' dominance, we characterised aphid heat tolerance and demography of the two species sourced from relatively mild (Xinxiang) and hot (Wuhan) locations in a common garden design and compared the same measures in up‐ and down‐selected lines of the two aphid species. We found that accumulation of extreme high‐temperature events (EHTs) affected per capita growth rate of S. avenae but not R. padi, driving a shift in annual relative dominance of these two common species in wheat fields. Furthermore, evidence from common garden tests and artificial thermal selection revealed that evolutionary and plastic changes in thermal tolerance under EHTs were species‐dependent; R. padi evolved higher heat tolerance without reducing fitness while S. avenae did not evolve heat tolerance but showed detrimental transgenerational plastic changes under thermal extremes. Rhopalosiphum padi may take over the dominant position of S. avenae in a warmer future, due to a higher evolutionary potential of heat tolerance and less detrimental plasticity following selection. Field surveys and laboratory experiments together point to a shift in species dominance related to interspecific differences in species' evolutionary rates and transgenerational plasticity of thermal traits during selection events associated with extreme climatic conditions. This study highlights that eco‐evolutionary dynamics can contribute to community responses to natural thermal extremes. A free Plain Language Summary can be found within the Supporting Information of this article.

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Section: Introductionmentioning

confidence: 99%

Extreme climate shifts pest dominance hierarchy through thermal evolution and transgenerational plasticity

Zhu

Hoffmann

et al. 2021

Functional Ecology

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“…Mites disperse themselves by walking (Sabelis & Dicke, 1985) to find a suitable site for colonization and feeding (Tixier, Kreiter & Auger, 2000;Aguilar-Fenollosa et al, 2016;Moerman, 2016;Mukwevho, Olckers & Simelane, 2017;Sousa et al, 2019). One major factor for dispersal is environmental contamination, due to pesticide application (Lima et al, 2015;Guedes et al, 2016;Mohammed et al, 2019;Monteiro et al, 2019b). This study aimed to determine whether synthetic chemicals and oils respond similarly to the dispersal and colonization behavior of Panonychus citri.…”

Section: Discussionmentioning

confidence: 99%

Behavioral response ofPanonychus citri(McGregor) (Acari: Tetranychidae) to synthetic chemicals and oils

Qayyoum

Song

Zhang

et al. 2021

PeerJ

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Background Panonychus citri (McGregor) (Acari: Tetranychidae) population outbreaks after the citrus plantation’s chemical application is a common observation. Dispersal behavior is an essential tool to understand the secondary outbreak of P. citri population. Therefore, in the current study, the dispersal activity of P. citri was observed on the leaf surfaces of Citrus reticulata (Rutaceae) treated with SYP-9625, abamectin, vegetable oil, and EnSpray 99. Method Mites were released on the first (apex) leaf of the plant (adaxial surface) and data were recorded after 24 h. The treated, untreated, and half-treated data were analyzed by combining the leaf surfaces (adaxial right, adaxial left, abaxial right, and abaxial left). All experiments were performed in open-air environmental conditions. Results The maximum number of mites was captured on the un-treated or half-treated surfaces due to chemicals repellency. Chemical bioassays of the free-choice test showed that all treatments significantly increased the mortality of P. citri depending on application method and concentration. A significant number of mites repelled away from treated surfaces and within treated surfaces except adaxial left and abaxial right surfaces at LC30. In the no-choice test, SYP-9625 gave maximum mortality and dispersal by oils than others. No significant differences were observed within the adaxial and abaxial except abaxial surface at LC30. Therefore, the presence of tested acaricides interferes with P. citri dispersal within leaf surfaces of plantations depending on the mites released point and a preferred site for feeding.

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“…Pesticide application is the most common aphid control method, but it is well known that its ability to prevent the spread of NPT viruses by transient aphids is limited because inoculation occurs rapidly and before a pesticide can take effect on the transient vector (Perring et al, 1999). Furthermore pesticide may affect local pest community structure as differential susceptibility to pesticide may result in species dominance shift favoring secondary pest outbreaks (Mohammed et al, 2019;Zhao et al, 2017). In their experiments with two aphids species, Rhopalosiphum padi and Sitobion avenae, Mohammed et al (2019) showed that pesticide exposure led to a shift in the outcome of interspecific competition between the two aphid species, compromising the dominance of R. padi in pesticide-free plants, while favouring the prevalence of the S. avenae under pesticides exposure.…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore pesticide may affect local pest community structure as differential susceptibility to pesticide may result in species dominance shift favoring secondary pest outbreaks (Mohammed et al, 2019;Zhao et al, 2017). In their experiments with two aphids species, Rhopalosiphum padi and Sitobion avenae, Mohammed et al (2019) showed that pesticide exposure led to a shift in the outcome of interspecific competition between the two aphid species, compromising the dominance of R. padi in pesticide-free plants, while favouring the prevalence of the S. avenae under pesticides exposure. Our results show that small pesticide application has the potential to slightly reduce the spread of NPT viruses.…”

Section: Discussionmentioning

confidence: 99%

Modelling interference between vectors of non-persistently transmitted plant viruses to identify effective control strategies

Zaffaroni

Rimbaud

Mailleret

et al. 2021

Preprint

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Aphids are the primary vector of plant viruses. Transient aphids, which probe several plants per day, are considered to be the principal vectors of non-persistently transmitted (NPT) viruses. However, resident aphids, which can complete their life cycle on a single host and are affected by agronomic practices, can transmit NPT viruses as well. Moreover, they can interfere both directly and indirectly with transient aphids, eventually shaping plant disease dynamics. By mean of an epidemiological model, originally accounting for ecological principles and agronomic practices, we explore the consequences of fertilization and irrigation, pesticide deployment and roguing of infected plants on the spread of viral disease in crops. Our results indicate that the spread of NPT viruses can be i) both reduced or increased by fertilization and irrigation, depending on whether the interference is direct or indirect; ii) counter-intuitively increased by pesticide application and iii) reduced by roguing infected plants. We show that a better understanding of vectors’ interactions would enhance our understanding of disease transmission, supporting the development of disease management strategies.

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Potential for insecticide-mediated shift in ecological dominance between two competing aphid species

Cited by 31 publications

References 69 publications

Extreme climate shifts pest dominance hierarchy through thermal evolution and transgenerational plasticity

Extreme climate shifts pest dominance hierarchy through thermal evolution and transgenerational plasticity

Behavioral response ofPanonychus citri(McGregor) (Acari: Tetranychidae) to synthetic chemicals and oils

Modelling interference between vectors of non-persistently transmitted plant viruses to identify effective control strategies

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