Rapid adaptation to invasive predators overwhelms natural gradients of intraspecific variation

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dc.contributor.authorMelotto, Andreaen_ZA
dc.contributor.authorManenti, Raoulen_ZA
dc.contributor.authorFicetola, Gentile Francescoen_ZA
dc.date.accessioned2020-07-24T12:43:59Z
dc.date.accessioned2021-08-30T11:01:31Z
dc.date.available2020-07-24T12:43:59Z
dc.date.available2021-08-30T11:01:31Z
dc.date.issued2020-07-17
dc.descriptionCITATION: Melotto, A., Manenti, R. & Ficetola, G. F. 2020. Rapid adaptation to invasive predators overwhelms natural gradients of intraspecific variation. Nature Communications, 11:3608, doi:10.1038/s41467-020-17406-y.
dc.descriptionThe original publication is avialable at https://www.nature.com/ncomms
dc.description.abstractInvasive predators can exert strong selection on native populations. If selection is strong enough, populations could lose the phenotypic variation caused by adaptation to heterogeneous environments. We compare frog tadpoles prior to and 14 years following invasion by crayfish. Prior to the invasion, populations differed in their intrinsic developmental rate, with tadpoles from cold areas reaching metamorphosis sooner than those from warm areas. Following the invasion, tadpoles from invaded populations develop faster than those from non-invaded populations. This ontogenetic shift overwhelmed the intraspecific variation between populations in a few generations, to the point where invaded populations develop at a similar rate regardless of climate. Rapid development can have costs, as fast-developing froglets have a smaller body size and poorer jumping performance, but compensatory growth counteracts some costs of development acceleration. Strong selection by invasive species can disrupt local adaptations by dampening intraspecific phenotypic variation, with complex consequences on lifetime fitness.en_ZA
dc.description.versionPublisher's version
dc.format.extent10 pages : illustrations (some color)en_ZA
dc.identifier.citationMelotto, A., Manenti, R. & Ficetola, G. F. 2020. Rapid adaptation to invasive predators overwhelms natural gradients of intraspecific variation. Nature Communications, 11:3608, doi:10.1038/s41467-020-17406-y.
dc.identifier.issn2041-1723 (online)
dc.identifier.otherdoi:10.1038/s41467-020-17406-y
dc.identifier.urihttp://hdl.handle.net/10019.1/122941
dc.language.isoenen_ZA
dc.publisherNature
dc.rights.holderAuthors retain copyright
dc.subjectCommunity ecologyen_ZA
dc.subjectEvolutionary ecologyen_ZA
dc.subjectHerpetologyen_ZA
dc.subjectInvasive species -- Predators ofen_ZA
dc.subjectEvolution (Biology) -- Genetic aspectsen_ZA
dc.titleRapid adaptation to invasive predators overwhelms natural gradients of intraspecific variationen_ZA
dc.typeArticleen_ZA
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