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dc.creatorStynoski, Jennifer Lynn
dc.creatorTorres Mendoza, Yaritbel
dc.creatorSasa Marín, Mahmood
dc.creatorSaporito, Ralph A.
dc.date.accessioned2019-05-08T15:36:10Z
dc.date.available2019-05-08T15:36:10Z
dc.date.issued2014
dc.identifier.citationhttps://esajournals.onlinelibrary.wiley.com/doi/pdf/10.1890/13-0927.1
dc.identifier.issn1939-9170
dc.identifier.urihttps://hdl.handle.net/10669/76946
dc.description.abstractMany organisms use chemical defenses to reduce predation risk. Aposematic dendrobatid frogs sequester alkaloid-based chemical defenses from a diet of arthropods, but research on these defenses has been limited to adults. Herein, we investigate chemical defense across development in a dendrobatid frog, Oophaga pumilio. This species displays complex parental care: at hatching, mothers transport tadpoles to phytotelmata, and then return to supply them with an obligate diet of nutritive eggs for about six weeks. We collected eggs, tadpoles, juveniles, and adults of O. pumilio, and detected alkaloids in all life stages. The quantity and number of alkaloids increased with frog and tadpole size. We did not detect alkaloids in the earliest stage of tadpoles, but alkaloids were detected as trace quantities in nutritive eggs and as small quantities in ovarian eggs. Tadpoles hand-reared with eggs of an alkaloid-free heterospecific frog did not contain alkaloids. Alkaloids that are sequestered from terrestrial arthropods were detected in both adults and phytotelm-dwelling tadpoles that feed solely on nutritive eggs, suggesting that this frog may be the first animal known to actively provision post-hatch offspring with chemical defenses. Finally, we provide experimental evidence that maternally derived alkaloids deter predation of tadpoles by a predatory arthropod.es_ES
dc.description.sponsorshipMinisterio del Ambiente, Energía y Technologia/[10CR000024]/MINAET/Costa Ricaes_ES
dc.description.sponsorshipThe Convention on International Trade in Endangered Species/[10CR000024]/CITES/Costa Ricaes_ES
dc.language.isoen_USes_ES
dc.sourceEcology; Vol. 95(3)es_ES
dc.subjectAntipredator defensees_ES
dc.subjectChemical defensees_ES
dc.subjectDendrobatidaees_ES
dc.subjectEggses_ES
dc.subjectJuvenileses_ES
dc.subjectLa Selva, Costa Ricaes_ES
dc.subjectMaternal provisioninges_ES
dc.subjectOophaga pumilioes_ES
dc.subjectParental carees_ES
dc.subjectPhytotelmataes_ES
dc.subjectPoison glandses_ES
dc.subjectTadpoleses_ES
dc.titleEvidence of maternal provisioning of alkaloid-based chemical defenses in the strawberry poison frog Oophaga pumilioes_ES
dc.typeartículo original
dc.identifier.doi10.1890/13-0927.1
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias de la Salud::Instituto Clodomiro Picado (ICP)es_ES


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