A new species of Colostethus (Anura: Dendrobatidae) with maternal care from Kaieteur National Park, Guyana

Kok, Philippe J. R.; Sambhu, Hemchandranauth; Roopsind, Indranee; Lenglet, Georges; Bourne, Godfrey R.

doi:10.11646/zootaxa.1238.1.3

Cited by 23 publications

(17 citation statements)

References 22 publications

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“…Kaiei's rocket frog produces a call that is similar to A. beebei 's short, pulsed advertisement call (Kok et al. ; Pettitt et al. ), but has a slower pulse rate (average = 7.21 pulses/sec compared to A. beebei 's 11.3 pulses/sec) and a lower dominant frequency (average = 4.85 kHz compared to A. beebei's 5.4 kHz).…”

Section: Discussionmentioning

confidence: 99%

“…The golden rocket frog is closely related to Kaiei's rocket frog, Anomaloglossus kaiei, and the two species live sympatrically in Kaieteur National Park. Kaiei's rocket frog produces a call that is similar to A. beebei's short, pulsed advertisement call (Kok et al 2006;Pettitt et al 2012), but has a slower pulse rate (average = 7.21 pulses/sec compared to A. beebei's 11.3 pulses/sec) and a lower dominant frequency (average = 4.85 kHz compared to A. beebei's 5.4 kHz). We predict that these two call properties, along with pulse interval, may be under multiple selection pressures simultaneously.…”

Section: Individual Call Variation and Mate Selectionmentioning

confidence: 98%

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Advertisement Call Variation in the Golden Rocket Frog (Anomaloglossus beebei): Evidence for Individual Distinctiveness

2013

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Individual distinctiveness in acoustic signals can allow receivers to respond appropriately to different individuals. The aim of this research was to examine signal variation and to investigate the relative importance of different acoustic properties for coding individual distinctiveness in the advertisement calls of male golden rocket frogs (Anomaloglossus beebei). We examined patterns of within‐individual and among‐individual variability in 760 advertisement calls of 40 males as well as repeatability in 16 additional males that were recorded on two different occasions. We examined eight call properties, and all properties exhibited significant among‐individual variation and moderate to high repeatability across days. We employed discriminant function analysis to examine individual distinctiveness statistically. These analyses assigned 79% of calls to the correct individual. Fine temporal properties, including pulse duration, pulse rate, and pulse interval, as well as the spectral property of dominant frequency, contributed most toward discrimination among individuals. These results indicate that individual male golden rocket frogs can be distinguished statistically by their advertisement calls. We use these findings to evaluate results of previous playback studies in A. beebei and to generate testable predictions regarding the potential for specific call properties to function in mate selection and social recognition.

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Section: Discussionmentioning

confidence: 99%

Section: Individual Call Variation and Mate Selectionmentioning

confidence: 98%

Advertisement Call Variation in the Golden Rocket Frog (Anomaloglossus beebei): Evidence for Individual Distinctiveness

2013

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“…B) is found only in Kaieteur National Park (Kok et al . ). During May–October 2009 and May–July 2010, we studied a population along the edge of a 455‐m high plateau near Kaieteur Falls (5°1′23″N, 59°28′52″W).…”

Section: Methodsmentioning

confidence: 97%

Predictors and benefits of microhabitat selection for offspring deposition in golden rocket frogs

2018

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In many tropical frogs, offspring development and survival potentially depend on microhabitat features associated with sites that parents select for oviposition and tadpole rearing. We investigated the importance of microhabitat features in the selection of oviposition sites versus tadpole rearing sites, as well as in determining offspring survival, in the golden rocket frog, Anomaloglossus beebei. Endemic to Guyana, this species exhibits biparental care and exclusively uses phytotelmata in bromeliads for oviposition and tadpole rearing. We used model-based inference to evaluate evidence that parents prioritize different microhabitat features in selecting phytotelmata suitable for oviposition versus tadpole rearing and that microhabitat selection can adaptively promote offspring survival. For phytotelmata in 132 bromeliads, we quantified bromeliad size, phytotelm height, leaf angle (indicative of location within the bromeliad), water volume, water temperature, dissolved oxygen concentration, and the presence/absence of potential predators and nearby conspecifics. Compared to tadpole rearing sites, oviposition sites were found in phytotelmata associated with leaves at lower angles within bromeliads, smaller water volumes, lower water temperatures, higher dissolved oxygen concentrations, and more predatory crabs. Compared with unsuccessful egg clutches, successful clutches were found in phytotelmata with lower water temperatures, higher dissolved oxygen concentrations, fewer crabs, more dragonfly larvae, and more nearby conspecifics. We conclude that the nonrandom patterns of microhabitat use for oviposition sites and tadpole rearing sites in golden rocket frogs are associated with specific environmental factors that promote offspring survival through a critical stage of the animals' complex life cycle.

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“…The diagnosis follows Barrio-Amorós & Santos (2009) while the description follows Barrio-Amorós (2006). Comparative data were taken from La Marca (1996), Kok et al (2006a), Myers & Donnelly (2008) and Barrio-Amorós & Brewer (2008). The toe webbing formula follows the system of Myers & Duellman (1982).…”

Section: Methodsmentioning

confidence: 99%

A new dendrobatid frog (Anura: Dendrobatidae: Anomaloglossus) from the Orinoquian rainforest, southern Venezuela

Barrio-Amorós

Santos

Jovanovic

2010

Zootaxa

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A new species of Anomaloglossus is described from the Venezuelan Guayana; it is the 21 st described species of Anomaloglossus from the Guiana Shield, and the 15 th from Venezuela. This species inhabits rainforest on granitic substrate on the northwestern edge of the Guiana Shield (Estado Amazonas, Venezuela). The new species is distinguished from congeners by sexual dimorphism, its unique male color pattern (including two bright orange parotoid marks and two orange paracloacal spots on dark brown background), call characteristics and other morphological features. Though to the new species is known only from the northwestern edge of the Guiana Shield, its distribution may be more extensive, as there are no significant biogeographic barriers isolating the type locality from the granitic lowlands of Venezuela.

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A new species of Colostethus (Anura: Dendrobatidae) with maternal care from Kaieteur National Park, Guyana

Cited by 23 publications

References 22 publications

Advertisement Call Variation in the Golden Rocket Frog (Anomaloglossus beebei): Evidence for Individual Distinctiveness

Advertisement Call Variation in the Golden Rocket Frog (Anomaloglossus beebei): Evidence for Individual Distinctiveness

Predictors and benefits of microhabitat selection for offspring deposition in golden rocket frogs

A new dendrobatid frog (Anura: Dendrobatidae: Anomaloglossus) from the Orinoquian rainforest, southern Venezuela

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