Exposure during embryonic development to Roundup® Power 2.0 affects lateralization, level of activity and growth, but not defensive behaviour of marsh frog tadpoles

Bolis, Alessandro; Gazzola, Andrea; Pellitteri‐Rosa, Daniele; Colombo, A; Bonfanti, P; Bellati, Adriana

doi:10.1016/j.envpol.2020.114395

Cited by 14 publications

(4 citation statements)

References 83 publications

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“…GBH exposure impaired some species physically, decreasing escape speed after exposure [127,147]. Furthermore, in a few studies, no effect from pre-exposure to GBH on anti-predator behavior were recorded [130,167]. Deactivation or masking of predator cues by GBHs was documented [162,163], similar to GBHs masking the presence of other agrotoxins, as mentioned above [217].…”

Section: Discussionmentioning

confidence: 80%

“…Overall, the authors suggest that exposure to the herbicide did not significantly alter the tadpole's anti-predator response [167]. Likewise, the anti-predator capabilities of marsh frog tadpoles were not affected by exposure to Roundup ® Power 2.0 [130].…”

Section: Anti-predator Behaviormentioning

confidence: 91%

“…Other aquatic animals affected by glyphosate include the marsh frog, Pelophylax ridibundus. Marsh frog tadpoles exposed to water contaminated with 7.6 mg/L, 3.1 mg/L, and 0.7 mg/L glyphosate showed a decrease in activity level during the Gosner stage 25 [130]. In two different species of South American frogs, Boana faber and Leptodactylus latrans, tadpoles showed lethargy, convulsions, and rapid bursts of swimming when exposed to glyphosate at concentrations of 69, 161, 310, 550, and 1074.5 µg/L [131].…”

Section: Activitymentioning

confidence: 95%

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The Herbicide Glyphosate and Its Formulations Impact Animal Behavior across Taxa

Talyn,

Muller,

Mercado

et al. 2023

Agrochemicals

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Use of glyphosate and glyphosate-based herbicides is ubiquitous in US agriculture and widespread around the world. Despite marketing efforts to the contrary, numerous studies demonstrate glyphosate toxicity to non-target organisms including animals, primarily focusing on mortality, carcinogenicity, renal toxicity, reproductive, and neurological toxicity, and the biochemical mechanisms underlying these physiological outcomes. Glyphosate toxicity also impacts animal behavior, both in model systems and in agricultural and environmentally relevant contexts. In this review, we examine the effects of glyphosate and glyphosate-based herbicides on animal behaviors, particularly activity, foraging and feeding, anti-predator behavior, reproductive behaviors, learning and memory, and social behaviors. Glyphosate can be detected both in food and in the environment, and avoided through activity and feeding strategies. However, exposure also reduces activity, depresses foraging and feeding, increases susceptibility to predation, interferes with courtship, mating, fertility and maternal behaviors, decreases learning and memory capabilities, and disrupts social behaviors. Changes in animal behavior as a result of glyphosate toxicity are important because of their sometimes severe effects on individual fitness, as well as ecosystem health. Implications for human behavior are also considered.

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Section: Discussionmentioning

confidence: 80%

Section: Anti-predator Behaviormentioning

confidence: 91%

Section: Activitymentioning

confidence: 95%

See 1 more Smart Citation

The Herbicide Glyphosate and Its Formulations Impact Animal Behavior across Taxa

Talyn,

Muller,

Mercado

et al. 2023

Agrochemicals

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“…Although exposure to anthropogenic pollutants has been shown to affect tadpole behavior in several ways (Rohr and Crumrine 2005 ; Lavorato et al 2013 ; Polo-Cavia et al 2016 ; Sievers et al 2018 ; Bolis et al 2020 ), the effects of MPs on defensive responses have been poorly investigated. Behavioral alterations (e.g., reduced activity, defective anti-predator responses) induced by MPs may play an important role in the decline of anuran population, especially those already threatened by other anthropogenic alterations, such as habitat loss and fragmentation, and alien species.…”

Section: Introductionmentioning

confidence: 99%

Anti-predator behavioral responses of Italian agile frog tadpoles (Rana latastei) exposed to microplastics

Scribano

Gazzola

Winkler

et al. 2022

Environ Sci Pollut Res

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Microplastics (MPs) are nowadays abundant, persistent, and ubiquitous in the environment, representing a new threat for terrestrial, marine, and freshwater ecosystems. Although anuran populations and species are globally declining, the effect of MP exposure on this taxon has been poorly investigated. With the aim of assessing the effects of microplastic exposure on the defensive responses of Italian agile frog (Rana latastei) tadpoles, we exposed them to three different concentrations (1, 7, and 50 mg L−1) of a mixture of plastic polymers (HPDE, PVC, PS, and PES) for 2 weeks. Then, we measured the total distance covered by individual tadpoles before and after exposure to tadpole-fed dragonfly larvae (Aeshna cyanea) cues. As expected, predation risk sharply lowered the total distance travelled by tadpoles; however, MP concentration did not affect their defensive performances. We also collected data on tadpole development, activity, and mortality. In contrast with previous experiments, neither tadpole growth nor mortality varied with MP concentration. Our results indicate that the intensity of MP effects on growth and development may depend on tadpole size, with large tadpoles being less susceptible to the negative effects of MP exposure.

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Effects of predation risk on the sensory asymmetries and defensive strategies of Bufotes balearicus tadpoles

et al. 2022

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Lateralization consists of the differential use of bilateral organs or limbs and is well described in many taxa and in several contexts. Common ecological frameworks where it can be observed are foraging and predatory ones, with benefits related to both visual and auditory lateralization such as faster response or increasing neural processing ability. Anuran amphibians are considered relevant models for investigating lateralization, due to their great ecological variety and the possibility of easily being raised under laboratory conditions. By adopting the “rotational preference test”, we used Balearic green toad tadpoles to test the effects of behavioural defensive responses triggered by different predator types (native vs alien, i.e. dragonfly larvae Aeshna cyanea and adult red swamp crayfish Procambarus clarkii) and diets (fasted vs. tadpole-fed predators) on their lateralization. We recorded tadpoles’ responses to five different chemical cues: clean water (control treatment), fasted dragonfly larvae and crayfish, and tadpole-fed dragonfly larvae and crayfish. Green toad tadpoles did not show a bias in a predominant direction, although lateralization occurred at the individual level, as shown by the intensity index (LA). Perceived predation risk was the highest in tadpoles exposed to the combined chemical cues of conspecific prey and native predators, which elicited both changes in the intensity of lateralization and a marked reduction in tadpoles’ activity level. Our results suggest that contextual predation threat may induce very rapid changes in the expression of asymmetries at the individual level, and might play a role as part of the complex defensive strategies adopted by prey in the attempt to escape predators.

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Exposure during embryonic development to Roundup® Power 2.0 affects lateralization, level of activity and growth, but not defensive behaviour of marsh frog tadpoles

Cited by 14 publications

References 83 publications

The Herbicide Glyphosate and Its Formulations Impact Animal Behavior across Taxa

The Herbicide Glyphosate and Its Formulations Impact Animal Behavior across Taxa

Anti-predator behavioral responses of Italian agile frog tadpoles (Rana latastei) exposed to microplastics

Effects of predation risk on the sensory asymmetries and defensive strategies of Bufotes balearicus tadpoles

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