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- W4200468523 abstract "Invasive predators can strongly affect native populations. If alien predator pressure is strong enough, it can induce anti-predator responses, including phenotypic plasticity of exposed individuals and local adaptations of impacted populations. Furthermore, maternal investment is an additional pathway that could provide resources and improve performance in the presence of alien predators. We investigated the potential responses to an alien predator crayfish ( Procambarus clarkii) in a threatened frog ( Rana latastei ) by combining field observations with laboratory measurements of embryo development rate, to assess the importance of parental investment, origin and exposure to the crayfish cues. We detected a strong variation in parental investment amongst frog populations, but this variation was not related to the invasion status of the site of origin, suggesting that mothers did not modulate parental investment in relation to the presence of alien predators. However, cues of the invasive crayfish elicited plastic responses in clutches and tadpoles development: embryos developed faster when exposed to the predator. Furthermore, embryos from invaded sites reached Gosner’s development stage 25 faster than those from non-invaded sites. This ontogenetic shift can be interpreted as a local adaptation to the alien predator and suggests that frogs are able to recognise the predatory risk. If these plastic responses and local adaptation are effective escape strategies against the invasive predator, they may improve the persistence of native frog populations." @default.
- W4200468523 created "2021-12-31" @default.
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- W4200468523 date "2021-12-08" @default.
- W4200468523 modified "2023-10-17" @default.
- W4200468523 title "Invasive predators induce plastic and adaptive responses during embryo development in a threatened frog" @default.
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- W4200468523 doi "https://doi.org/10.3897/neobiota.70.65454" @default.
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