Abimael Guedes’s research while affiliated with State University of Paraíba and other places

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Publications (2)

Figure 1. a-Male positioned over the female's back during the court behavior of Boiruna sertaneja. b-After few attempts during the court, the male was seen starting the copula with the female. c-Nest-site of the second oviposition of Boiruna sertaneja showing the adult female (mother) in a hole on the ground, inactive and curled nearby the eggs. dNest-site of the third oviposition of B. sertaneja showing the adult female in the same hole on the ground partially covered by leaf litter; the mother is positioned loosely rolled up having the eggs in the middle. e-One of the eggs showing how they were enumerated (it was discarded having no embryo, but just fluids inside); f-Hatchling snake number seven getting out of its egg.
Notes on court and copula, fertility, nest, eggs and hatchlings of the Caatinga’s black snake Boiruna sertaneja Zaher, 1996 (Serpentes: Dipsadidae) from northeastern Brazil
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August 2020

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170 Reads

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1 Citation

Anais da Academia Brasileira de Ciências

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Abimael Guedes

The Caatinga's black snake Boiruna sertaneja is a Pseudoboini species, endemic of the Caatinga biome. It is rare and fits in five traits that suggest it deserve more attention in reproduction research and conservation policies. Here we provide information on reproductive biology of B. sertaneja by adding new data about court and copula, fertility, nest, eggs and hatchling morphometry and pattern of color based on captivity specimens. The court and copula, as well as oviposition of B. sertaneja in the Caatinga are associated to period of high temperature and dry season. Our findings indicate that females of B. sertaneja, in nature, could select protected places or actively build their nests. We recorded three oviposture after a single event of copula by the female of B. sertaneja. The long time gap between copula and clutches strongly suggests that female B. sertaneja can store sperm in their oviducts for long periods or do facultative parthenogenesis. Clutch size and hatchling size of B. sertaneja was high. We observed variation on the pattern of coloration among hatchlings of same litter. This study comprises the first description of important aspects of reproduction and can give us some clues about how B. sertaneja reproduce in nature.

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Citations (2)

... Compared to other Pseudoboini snakes, the incubation period showed similarities with Oxyrhopus guibei Hoge & Romano, 1977, from southeast Brazil, while its hatchlings were often smaller (incubation: 57-94 days, clutch of 3-20 eggs, 137-230 mm SVL, 2.9-4.9 g mass; Pizzatto & Marques 2002). Boiruna sertaneja Zaher, 1996 inhabits the Caatinga and is phylogenetically closer to P. nigra than O. guibei, and has a longer period of incubation (111-120 days), more eggs (13)(14)(15)(16)(17)(18)(19), and larger hatchlings (316-367 mm SVL, 20-26 g mass; Guedes & Guedes 2020). Despite being phylogenetically close, these species differ in size: O. guibei maximum SVL is 1080 mm (Pizzatto & Marques 2002), B. sertaneja maximum SVL is 1940 mm, while the maximum SVL of P. nigra is 1261 mm (Gaiarsa et al. 2013). ...

Reference:

Clutch size, morphology, hatching time and offspring behavior of Pseudoboa nigra (Dipsadidae: Pseudoboini) from Caatinga
Notes on court and copula, fertility, nest, eggs and hatchlings of the Caatinga’s black snake Boiruna sertaneja Zaher, 1996 (Serpentes: Dipsadidae) from northeastern Brazil

Anais da Academia Brasileira de Ciências

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Abimael Guedes

... In published illustrations of MMC in snakes, the number of loops is usually as few as one to three in members of Viperidae (Shaw, 1948;Carpenter et al., 1976;Carpenter, 1977;Nishimura et al., 1983;Andrén, 1986;Schuett and Gillingham, 1989), whereas it is often greater than three in members of other families (Fleay, 1951;Bogert and Roth, 1966;Turner, 1992;Almeida-Santos et al., 1998;Muniz-da-Silva et al., 2013;Guedes et al., 2019;Valencia et al., 2020;Abu Baker et al., 2021). If this difference is due to a tendency among vipers to use fewer loops during MMC, and not just an artifact of having been photographed at moments when fewer loops were used than is usual for vipers, then coiling may be a component of MMC that is of lesser importance in Viperidae than in other snake clades. ...

Reference:

Coiling During Male-Male Combat in Snakes: Differences Between Vipers and Other Groups, and Between Constrictors and Non-Constrictors
Male-male fighting, dominance, and mating in Epicrates assisi (Serpentes: Boidae) in captivity

Phyllomedusa Journal of Herpetology

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Abimael Guedes

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