Bokermannohyla oxente is known from the Municipalities of Lençois, Andaraí, Mucugé, and Palmeiras, all from the Serra do Sincorá in the central part of the Chapada Diamantina, and also from the Municipality of Rio de Contas, south
of Chapada Diamantina, north of the Espinhaço mountain range, Bahia, in northeastern Brazil. It can also be found in the Municipalities of Utinga and Bonito, in the northeastern area of the Chapada Diamantina, Brazil. All localities reported
are approximately between 500 and 1300 m elevation. Georeference coordinates of the municipalities are: Lençois, 12 33 47 S and 41 23 24 W; Palmeiras, 12 31 44 S and 41 33 32 W; Mucugé, 13 00 19 S and 41 22 15 W; Rio de Contas 13 34 44 S and 41 48 41 W (Lugli and Haddad, 2006).
Habitat and Ecology
Both adults and juveniles of B. oxente are nocturnal, living close to permanent streams with clear or brownish red water, bordered by riparian vegetation. Reproduction is prolonged; males call throughout the year. Males apparently are territorial, remaining far from each other (10–20 m), and apparently defend their territory only by acoustic signals; combats between males were never observed. Males generally call while perched on bushes and trees at the margins of the streams, but some of them were found calling on rocks or in rock crevices. Calling activity begins at sunset and can extend through the night. Females and juveniles were observed on rocks of the stream bed (Lugli and Haddad, 2006).
Egg clutches are deposited on the rocky bottoms of stream backwaters. One clutch contained 313 eggs (oviposition observed in situ); an egg clutch obtained in an aquarium contained 296 eggs. Eggs are pigmented, with diameter range of 1.4–1.9 mm, enveloped by individual gelatinous capsules. Tadpoles in different developmental stages and recently metamorphosed froglets were found throughout the year. Tadpoles are diurnal and nocturnal, beginning the activity at the hotter hours of the day, and remaining active all night. They were found on the rocky botton of streams and mostly remain in backwaters with slow or no current, avoiding areas of fast flow (Lugli and Haddad, 2006).
No population status information is available for this species.
No major threats are known for this species.
No conservation measures are known for this species.
Red List Status
Least Concern (LC)
Listed as Least Concern in view of its likely wide distribution, occurrence in an area where its habitats are not significantly threatened, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.
In the Bokermannohyla pseudopseudis group. Bokermannohyla oxente can be distinguished from other species of the group by acoustic and morphological features (Lugli and Haddad, 2006).
Ariadne Angulo 2008. Bokermannohyla oxente. The IUCN Red List of Threatened Species 2008: e.T135786A4201279. http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T135786A4201279.en .Downloaded on 18 November 2018