Article
Environmental Sciences
Milton L. Montano-Campaz, Eugenio E. Oliveira, Tito Bacca, Beatriz Toro-Restrepo, Lucimar G. Dias
Summary: We evaluated the susceptibility of Chironomus columbiensis larvae to the neonicotinoid imidacloprid and found that chronic sublethal exposure reduced male body mass and reproduction, while acute sublethal exposure during the first instar increased male body mass. In addition, different exposure types and developmental stages had different effects on the wing properties of male and female mosquitoes.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Agronomy
Aishwarya Ray, Basana Gowda Gadratagi, Neeraj Budhlakoti, Dhanendra Kumar Rana, Totan Adak, Guru Pirasanna Pandi Govindharaj, Naveenkumar Basavanagouda Patil, Annamalai Mahendiran, Prakash Chandra Rath
Summary: This study investigated the response of a widely acclaimed parasitoid to the insecticide imidacloprid. The results showed that different concentrations of the insecticide had different effects on the parasitoid, with positive effects observed at lower concentrations.
PEST MANAGEMENT SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Alexandre Bantz, Delphine Goven, Myriam Siegwart, Sandrine Maugin, Valerie Raymond
Summary: The study aims to demonstrate that subchronic exposure to a sublethal dose of neonicotinoid imidacloprid can induce molecular changes leading to a loss of imidacloprid sensitivity. Results from experiments on cockroaches show that exposure to sublethal dose of imidacloprid induces slight changes in detoxification enzyme activity and a significant decrease in nicotinic acetylcholine alpha 2 mRNA, resulting in decreased sensitivity to imidacloprid.
PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
(2022)
Article
Environmental Sciences
Xueke Gao, Kaixin Zhang, Likang Zhao, Xiangzhen Zhu, Li Wang, Dongyang Li, Jichao Ji, Lin Niu, Junyu Luo, Jinjie Cui
Summary: Integrated pest management aims to combine biological and chemical methods to control pests. Neonicotinoids have been found to have a negative impact on biological control, while the impact of sulfoxaflor on natural predators is not well understood. This study investigates the effects of sublethal doses of sulfoxaflor on a parasitoid natural enemy, Binodoxys communis. The results show that sublethal doses of sulfoxaflor significantly reduce survival rate, adult lifespan, development duration, and parasitism rate of B. communis. Transcriptome analysis reveals that the expression of genes related to detoxification systems and energy metabolism is altered by sublethal sulfoxaflor exposure. Therefore, optimizing pesticide applications in integrated pest management is crucial for the safety and survival of natural pest parasitoids.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Behavioral Sciences
Peng-Cheng Liu, Zi-Yin Wang, Mei Qi, Hao-Yuan Hu
Summary: Sex allocation theory explains the investment in female versus male offspring. Parasitoid wasps show how organisms manipulate sex ratios based on environmental variation. Superparasitism during development contributes to a shift in sex ratio.
BEHAVIORAL ECOLOGY
(2023)
Article
Agronomy
Yue Su, Xiangliang Ren, Hongyan Hu, Xianpeng Song, Xiaoyan Ma, Dan Wang, Yongsheng Yao, Yan Ma, Jinjie Cui
Summary: This study evaluated the effects of imidacloprid and clothianidin on the development and population growth parameters of Chrysopa pallens. The results showed that these insecticides prolonged the developmental stage of Chrysopa pallens but had limited effects on population growth.
Article
Biology
Thomas van de Kamp, Istvan Miko, Arnold H. Staniczek, Benjamin Eggs, Daria Bajerlein, Tomas Farago, Lea Hagelstein, Elias Hamann, Rebecca Spiecker, Tilo Baumbach, Petr Jansta, Lars Krogmann
Summary: This article discusses the important evolution of mandibles in insects, particularly the highly modified mandibles in parasitoid chalcid wasps. The authors suggest that this evolution plays a significant role in insect diversification, helping them adapt to parasitize hosts hidden in hard substrates.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Article
Entomology
Robert L. Aldridge, Barry W. Alto, C. R. O. X. A. N. N. E. Connelly, B. E. R. N. A. R. D. Okech, B. L. A. I. R. Siegfried, Kenneth J. Linthicum
Summary: This study evaluated the efficacy of formulated larvicides against susceptible Aedes aegypti, finding that different formulations at the same concentration had varying effects on adult body size and sex proportions.
JOURNAL OF THE AMERICAN MOSQUITO CONTROL ASSOCIATION
(2022)
Article
Environmental Sciences
Maria Belen Poliserpi, Diego Cristos, Juan Manuel Perez-Iglesias, Julie Celine Brodeur
Summary: The study evaluated the distribution of neonicotinoid IMI in a songbird species and its physiological effects, showing IMI absorption and elimination in tissues, as well as impacts on hematological, genetic, and enzymatic parameters. Treatments altered cholinesterases and GST activity, with the suggestion of using plasma GST inhibition as a non-lethal biomarker for IMI exposure in wild birds. Valuable tools for bird conservation in agroecosystems were provided.
Article
Multidisciplinary Sciences
Antonin Hlavacek, Radek K. Lucan, Jiri Hadrava
Summary: This study aimed to provide fundamental data on species composition, timing of migration, and sex ratio of hoverfly migration. The results showed that the migration of hoverflies in central Europe took place from early September to late October, with a total of 31 migrating species recorded. Moreover, the migration intensity was strongly influenced by weather conditions, such as south wind, high temperature, high atmospheric pressure, and low precipitation. Additionally, the sex ratio of the three most common species exhibited a strong asymmetry.
Article
Environmental Sciences
Josimere Conceicao de Assis, Caio Eduardo da Costa Domingues, Rafaela Tadei, Claudia Ines da Silva, Hellen Maria Soares Lima, Pamela Decio, Elaine C. M. Silva-Zacarin
Summary: This study evaluated the sublethal effects on neotropical solitary bees and highlighted the importance of studies with native bees.
ENVIRONMENTAL POLLUTION
(2022)
Article
Entomology
Yindi Wei, Yue Su, Xu Han, Weifeng Guo, Yue Zhu, Yongsheng Yao
Summary: This study investigated the toxicity and sublethal effects of the neonicotinoid insecticide imidacloprid on Acyrthosiphon gossypii and its symbiotic bacteria. The results showed that imidacloprid had a negative impact on the reproduction and longevity of A. gossypii, and altered the abundance of symbiotic bacteria. These findings provide insight into the transgenerational and sublethal effects of imidacloprid on A. gossypii and its implications for symbiotic bacteria.
Article
Environmental Sciences
Solene Liegeois, Manon Delaunay, Charlotte Lecureuil, Marlene Goubault
Summary: Insecticides can have unintended effects on non-target species. This study investigated the effects of sublethal doses of the insecticide pyriproxyfen on parasitoid wasps and found that it increased egg production and aggressiveness, while not affecting host discrimination ability.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Biochemistry & Molecular Biology
Simon Legault, Julian Wittische, Michel Cusson, Jacques Brodeur, Patrick M. A. James
Summary: The study revealed evidence of panmixia and high genetic connectivity for two important species of spruce budworm parasitoids in boreal forests, indicating similar effective dispersal during outbreaks and high population densities between outbreaks. Additionally, a significant negative relationship between genetic diversity and latitude was found for one species but not the other, suggesting potential differences in northern range limits within the parasitoid community. These spatial dynamics should be considered when predicting future insect outbreak severities in boreal landscapes.
Review
Biology
Andy Gardner
Summary: The study of sex allocation provides strong evidence for Darwinian adaptation and has been a successful combination of theoretical and empirical research. The fitness outcomes of an individual's sex allocation decisions are influenced by the behavior of others, making it an evolutionary game. This article explores the historical development of understanding the rarer-sex effect in the evolution of sex allocation from Charles Darwin's writing in 1871 to William D. Hamilton's framing in 1972. The step-wise development of theory focused on refining the strategy set, payoff function, and unbeatable strategy. This article is part of the theme issue "Half a century of evolutionary games: a synthesis of theory, application and future directions".
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)