Molecular systematics and phylogeography of Amazonian poison frogs of the genus Dendrobates

Symula, Rebecca E.; Schulte, Rainer; Summers, Kyle

doi:10.1016/s1055-7903(02)00367-6

Cited by 65 publications

(101 citation statements)

References 41 publications

(49 reference statements)

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“…While it is not possible in the absence of data on reproductive isolation to determine whether R. ventrimaculata and R. variabilis are populations of the same species or distinct species, we can conclude that these two groups were recently connected by a common ancestor in both of these scenarios. This is consistent with previous phylogenetic analyses which show that R. ventrimaculata is a polyphyletic taxa characterized by the R. variabilis and R. ventrimaculata from our studied localities being closely related but clearly different from other R. ventrimaculata [16].…”

Section: Discussionsupporting

confidence: 93%

Advergence in Müllerian mimicry: the case of the poison dart frogs of Northern Peru revisited

et al. 2011

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Whether the evolution of similar aposematic signals in different unpalatable species (i.e. Mü llerian mimicry) is because of phenotypic convergence or advergence continues to puzzle scientists. The poison dart frog Ranitomeya imitator provides a rare example in support of the hypothesis of advergence: this species was believed to mimic numerous distinct model species because of high phenotypic variability and low genetic divergence among populations. In this study, we test the evidence in support of advergence using a population genetic framework in two localities where R. imitator is sympatric with different model species, Ranitomeya ventrimaculata and Ranitomeya variabilis. Genetic analyses revealed incomplete sorting of mitochondrial haplotypes between the two model species. These two species are also less genetically differentiated than R. imitator populations on the basis of both mitochondrial and nuclear DNA comparisons. The genetic similarity between the model species suggests that they have either diverged more recently than R. imitator populations or that they are still connected by gene flow and were misidentified as different species. An analysis of phenotypic variability indicates that the model species are as variable as R. imitator. These results do not support the hypothesis of advergence by R. imitator. Although we cannot rule out phenotypic advergence in the evolution of Mü llerian mimicry, this study reopens the discussion regarding the direction of the evolution of mimicry in the R. imitator system.

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Section: Discussionsupporting

confidence: 93%

Advergence in Müllerian mimicry: the case of the poison dart frogs of Northern Peru revisited

et al. 2011

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“…La mayoría de secuencias provienen de Summers et al (1999), Clough & Summers (2000), Santos et al (2003), Symula et al (2003), Grant et al (2006), Noonan & Wray (2006), Roberts et al (2006), Brown et al (2008), Santos et al (2009) y Brown et al (2011. Los números de acceso al GenBank están listados en la Fig.…”

Section: Análisis Filogenéticounclassified

Una especie nueva de rana venenosa de altura del género Excidobates (Dendrobatoidea: Dendrobatidae) de la Cordillera del Cóndor

Ron

Brito

2012

Pap. Avulsos Zool.

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The genus Excidobates comprises two species, E. captivus and E. mysteriosus, distributed in the Río Marañón basin in Peru. Herpetofaunal assessments in the eastern IntroduccIónLas ranas venenosas (flecha o dardo) constituyen una familia de anuros de colores brillantes, habitan los bosques tropicales y subtropicales de América Central y América del Sur (desde Nicaragua hasta el sur de Ecuador, la cuenca amazónica y el sureste de Brasil); son principalmente diurnas, de hábitos semiacuáticos y terrestres (Savage, 2002) excepto por algunas especies que depositan sus huevos en bromelias terrestres o arbóreas, en donde se desarrollan las larvas. Grant et al. (2006) ubicaron a estas ranas en la superfamilia Dendrobatoidea, la misma que se subdivide en las familias Aromobatidae y Dendrobatidae. Según Ron et al. (2011), en el Ecuador se registran dos géneros y ocho especies para Aromobatidae (Allobatinae y Anomaloglossinae) y a Dendrobatidae (Colostethinae, Dendrobatinae e Hyloxalinae) pertenecen 45 especies de 8

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“…Amazonian poison frogs (D. ventrimaculatus) are 15-18 mm in size, brightly colored and can be found in the entire Amazon basin (Symula et al 2003). We used unique color patterns to recognize individuals.…”

Section: Study Speciesmentioning

confidence: 99%

“…A complex of closely related species affiliated with D. ventrimaculatus (Symula et al 2003;Brown et al 2006;Noonan and Wray 2006) uses water bodies in leaf axils for both tadpole and egg deposition. The reproductive season in these species may last for several months during the rainy season, up to the entire year when phytotelmata do not desiccate, and females produce multiple clutches per reproductive season.…”

Section: Introductionmentioning

confidence: 99%

Offering offspring as food to cannibals: oviposition strategies of Amazonian poison frogs (Dendrobates ventrimaculatus)

Poelman

Dicke

2006

Evol Ecol

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Species utilizing distinct resources for offspring production often show plasticity in reproductive strategies as a function of resource quality. For species using ephemeral pools, strategies are mainly shaped by a time constraint related to pool stability, resource availability and the colonizing community. We studied reproductive strategies in Amazonian poison frogs (Dendrobates ventrimaculatus) that are characterized by oviposition in distinct, small and resource-limited water bodies in leaf axils of plants and the transport of newly hatched tadpoles on the back of males to similar water bodies. Cannibalism of eggs by tadpoles was found to be the main cause of egg mortality. Typically, at the end of the rainy season new clutches of eggs were deposited in water bodies already containing a tadpole. Manipulation of the available number of water bodies showed that this observation did not result from resource limitation. We conclude that D. ventrimaculatus has a plastic reproductive strategy that includes provisioning its tadpoles with fertilized eggs as a function of desiccation risk of water bodies housing its offspring. Provisioning behavior is expected to increase developmental rate and, therefore, chances of metamorphosis for tadpoles that hatched towards the end of the rainy season. The plastic food provisioning strategy may be an important evolutionary link to bi-parental and female care with development of obligate unfertilized egg provisioning in the genus Dendrobates.

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Molecular systematics and phylogeography of Amazonian poison frogs of the genus Dendrobates

Cited by 65 publications

References 41 publications

Advergence in Müllerian mimicry: the case of the poison dart frogs of Northern Peru revisited

Advergence in Müllerian mimicry: the case of the poison dart frogs of Northern Peru revisited

Una especie nueva de rana venenosa de altura del género Excidobates (Dendrobatoidea: Dendrobatidae) de la Cordillera del Cóndor

Offering offspring as food to cannibals: oviposition strategies of Amazonian poison frogs (Dendrobates ventrimaculatus)

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