Effects of cadmium ingestion on reproduction and maternal egg care in the European earwig

Honorio, Romain; Depierrefixe, Pauline; Devers, Séverine; Rouelle, Maryse; Meunier, Joël; Lécureuil, Charlotte

doi:10.1016/j.anbehav.2022.10.008

Cited by 7 publications

(9 citation statements)

References 81 publications

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“…For instance, ingestion of 0.2mg.kg -1 of cadmium affects reproductive behavior in the beet armyworm Spodoptera exigua (Su et al 2021) and ingestion of 7mg.kg -1 of cadmium impairs exploratory behavior in rats (Dési et al 1998). Importantly, a previous study showed that individuals fed with cadmium (equivalent to 20mg.kg -1 ) for three weeks accumulated this compound in their bodies (Honorio et al 2023). Taken together, these results thus suggest that the earwig we tested did ingest cadmium, but that it had a limited effect on parent-offspring interactions and the outcome of group living.…”

Section: Discussionmentioning

confidence: 99%

“…This study involved 108 F. auricularia females (species "A"; Wirth et al 1998;González-Miguéns et al 2020) field sampled in July 2021 in peach orchards near Valence, France (Lat 44.9772790, Long 4.9286990). From field sampling to egg hatching, we used the standard rearing conditions detailed in Honorio et al (2023). In brief, we maintained field-sampled females and males in large containers (32 x 20 x 16.5 cm) until the end of October 2021.…”

Section: Biological Model Rearing Conditions and Social Environmentmentioning

confidence: 99%

“…This was always the case. We have previously shown by quantifying cadmium in male earwigs that the ingestion of cadmium under the described conditions did allow the exposure and storage of cadmium within individuals (Honorio et al 2023). Overall, we fed 21, 21, 22, 22 and 22 experimental families with 0, 12.5, 25, 50 or 100mg.L -1 of cadmium, respectively.…”

Section: Cadmium Exposurementioning

confidence: 99%

“…On one hand, studies show that cadmium ingestion can have detrimental effects on the expression of certain behaviours such as aggression in rats (Arito et al 1981), locomotion in the common fruit fly Drosophila melanogaster (Nanda and Firdaus 2022) and mating behavior in the Asian corn borer Ostrinia furnacalis and the beet armyworm Spodoptera exigua (Luo et al 2020;Su et al 2021). On the other hand, a recent study did not detect an effect of cadmium ingestion on the expression of maternal care toward eggs and egg hatching rate in the European earwig (Honorio et al 2023). However, it remains unclear whether cadmium ingestion by earwig mothers and their juveniles after egg hatching can alter social interactions during family life and may thus have a strong impact on the fate of juveniles at the end of this period.…”

Section: Introductionmentioning

confidence: 99%

“…In this study, we followed up on Honorio et al (2023) and investigated whether cadmium ingestion by mothers and newly-hatched juveniles alters the expression of posthatching maternal care, as well as the development and survival of offspring during the period of care in the European earwig. There were two main reasons why we expected a different effect of cadmium on the expression of pre-and post-hatch care in this species.…”

Section: Introductionmentioning

confidence: 99%

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Cadmium does not affect post-hatching maternal care or early offspring development in earwigs

et al. 2023

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Anthropogenic pollution is steadily increasing and has a major impact on biodiversity. Chemical pollutants in particular affect many reproductive, physiological, and survival traits in a wide range of organisms. However, the effects on behavioral traits have been less studied, although they could have wide-ranging negative effects from the individual to the community level. Here, we attempted to fill this knowledge gap by investigating the effect of a common heavy metal pollutant, cadmium, on post-hatching maternal care and juvenile development in the European earwig Forficula auricularia. We fed 108 earwig families with five different cadmium concentrations (0, 12.5, 25, 50, and 100 mg.L−1), and measured ten parameters related to offspring care, non-care maternal behaviors, investment in maternal care and two parameters of offspring development (offspring weight gain and survival). Somewhat surprisingly, we found no effect of cadmium ingestion on any of the parameters measured, except for maternal self-grooming behavior. In particular, the ingestion of cadmium by group members did not result in an overall decrease in the expression of care by the contaminated mothers or in an overall higher level of care received by the contaminated offspring. By contrast, mothers fed the highest dose of cadmium showed an increase in self-grooming, probably due to the stress of toxic ingestion. Overall, our study raises questions about whether and how parent–offspring interactions can alter the negative effects of contaminated environments in social species.

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Section: Discussionmentioning

confidence: 99%

Section: Biological Model Rearing Conditions and Social Environmentmentioning

confidence: 99%

Section: Cadmium Exposurementioning

confidence: 99%