Reproductive Behavior of Terrestrial Breeding Frogs Eleutherodactylus johnstonei in Guyana. Bourne, G., R. Journal of Herpetology, 31:221-229, 1997. ![Reproductive Behavior of Terrestrial Breeding Frogs Eleutherodactylus johnstonei in Guyana [link]](https://bibbase.org/img/filetypes/link.svg "link")
Website abstract bibtex I studied courtship, amplexus, and oviposition behavior of leaf litter and cavity breeding frogs (Eleutherodactylus johnstonei) in Georgetown, Guyana, using modified plastic planters equipped with observation windows. Both sexes used pots with and without plants as diurnal retreats, but there was a preference for pots with plants. Calling males showed no preference for pots with or without plants. Females preferred pots with plants for oviposition. A gravid female initiated courtship by touching a calling male, who then led the female to one or more potential oviposition sites. The female either accepted or rejected cavities as nest sites, and sometimes abandoned the male if the nest cavities were unacceptable. Unacceptable cavities had direct contact with soil. Only 45% of the mating pairs employed axillary amplexus; males usually just sat on the females' backs. Twenty-five percent of the amplectic frogs then employed the reverse hind leg clasp after 0.50-1.75 h in the nest cavity. Oviposition lasted for 0.75-1 h, and approximately 14 externally fertilized, unpigmented eggs were laid in a pyramid. Fecundity was positively correlated with female size. The time from initial contact of the male by the female to egg laying was 4-6 h. Eggs hatched in approximately 13 d, and newly hatched froglets had snout-to-vent lengths of about 3.5 mm. Clutches were found during all months of the year; however, most clutches were deposited during the wettest months of the year. On average, males sired 3.3 clutches/year, while females produced 4.3 clutches/year. The most striking feature of E. johnstonei's reproductive behavior is that a few pairs used a reverse hind leg clasp during amplexus; a behavior only known for E. coqui that has internal fertilization. CR - Copyright © 1997 Society for the Study of Amphibians and Reptiles
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title = {Reproductive Behavior of Terrestrial Breeding Frogs Eleutherodactylus johnstonei in Guyana},
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year = {1997},
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abstract = {I studied courtship, amplexus, and oviposition behavior of leaf litter and cavity breeding frogs (Eleutherodactylus johnstonei) in Georgetown, Guyana, using modified plastic planters equipped with observation windows. Both sexes used pots with and without plants as diurnal retreats, but there was a preference for pots with plants. Calling males showed no preference for pots with or without plants. Females preferred pots with plants for oviposition. A gravid female initiated courtship by touching a calling male, who then led the female to one or more potential oviposition sites. The female either accepted or rejected cavities as nest sites, and sometimes abandoned the male if the nest cavities were unacceptable. Unacceptable cavities had direct contact with soil. Only 45% of the mating pairs employed axillary amplexus; males usually just sat on the females' backs. Twenty-five percent of the amplectic frogs then employed the reverse hind leg clasp after 0.50-1.75 h in the nest cavity. Oviposition lasted for 0.75-1 h, and approximately 14 externally fertilized, unpigmented eggs were laid in a pyramid. Fecundity was positively correlated with female size. The time from initial contact of the male by the female to egg laying was 4-6 h. Eggs hatched in approximately 13 d, and newly hatched froglets had snout-to-vent lengths of about 3.5 mm. Clutches were found during all months of the year; however, most clutches were deposited during the wettest months of the year. On average, males sired 3.3 clutches/year, while females produced 4.3 clutches/year. The most striking feature of E. johnstonei's reproductive behavior is that a few pairs used a reverse hind leg clasp during amplexus; a behavior only known for E. coqui that has internal fertilization. CR - Copyright © 1997 Society for the Study of Amphibians and Reptiles},
bibtype = {article},
author = {Bourne, Godfrey R},
journal = {Journal of Herpetology}
}
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