http://sedici.unlp.edu.ar:80/handle/10915/186020 Volumen 39 | Número 02 Sat, 14 Nov 2026 08:42:39 GMT 2026-11-14T08:42:39Z http://sedici.unlp.edu.ar:80/handle/10915/186142 Edicion de revista Cuadernos de Herpetología; vol. 39, no. 2 Trabajos - Activity and substrate use of Bothrops atrox (Serpentes: Viperidae) in a floodplain forest in the western Brazilian Amazon | Wirven Lima da Fonseca, Radraque Rodrigues Correa, Andesson de Souza Oliveira, Marcio Martins, Paulo Sergio Bernarde - Antecedentes ecológicos de la Lagartija de Schmidt Liolaemus schmidti (Marx, 1960) (Squamata, Liolaemidae) en el altiplano de la Región de Tarapacá, Chilel | Jorge Mella Ávila Notas - Amphibians of caves in Serra do Ramalho karst area, a remarkable region of subterranean fauna in Brazil | Ariadne F. Sabbag, Jonas E. Gallão, Délio Baêta, Célio F. B. Haddad, Maria E. Bichuette - Natural history notes and micro-habitat use by Bokermannohyla luctuosa (Pombal & Haddad, 1993) (Anura: Hylidae) | Lucas Machado Botelho, João Albert Bachur, Vanessa Kruth Verdade, Diego Almeida-Silva, Ivan Sazima, Edelcio Muscat - Predation of the rare casque-headed treefrog Trachycephalus mambaiensis (Hylidae: Lophiohylini) by the parrot-snake Leptophismystacinus (Colubridae) in a Cerrado-Caatinga ecotone | Isabella Parreira, Lucas Ninno, Reuber Albuquerque Brandão - New records of predation and feeding behavior of the vine snake Chironius brazili (Squamata: Colubridae) in the Espinhaço Mountain Range, Brazil | Vitor Otávio Ferreira Assunção, Gabriel Saturno Novedades zoogeográficas - Nuevos registros altitudinales de Bothrops ammodytoides Leybold, 1873 (Serpentes: Viperidae: Crotalinae) en la Cordillera de los Andes, San Juan, Argentina | Martina Feldman, Rodrigo Gómez Alés, Franco Valdez Ovallez, Yamila Méndez Osorio, Jeremías Luis Villafañe, Fabricio Gómez, Paola Andrea Carrasco - Range extension and natural history notes of Siphlophis leucocephalus | Clara A Salvino, Lucas Gabriel da Silva Rodrigues, Ubiratã Ferreira Souza, Pedro M. S. Nunes, Pedro Ivo Simões, José Henrique de Andrade Lima Mon, 01 Sep 2025 00:00:00 GMT http://sedici.unlp.edu.ar:80/handle/10915/186142 2025-09-01T00:00:00Z Trabajos - Activity and substrate use of Bothrops atrox (Serpentes: Viperidae) in a floodplain forest in the western Brazilian Amazon | Wirven Lima da Fonseca, Radraque Rodrigues Correa, Andesson de Souza Oliveira, Marcio Martins, Paulo Sergio Bernarde - Antecedentes ecológicos de la Lagartija de Schmidt Liolaemus schmidti (Marx, 1960) (Squamata, Liolaemidae) en el altiplano de la Región de Tarapacá, Chilel | Jorge Mella Ávila Notas - Amphibians of caves in Serra do Ramalho karst area, a remarkable region of subterranean fauna in Brazil | Ariadne F. Sabbag, Jonas E. Gallão, Délio Baêta, Célio F. B. Haddad, Maria E. Bichuette - Natural history notes and micro-habitat use by Bokermannohyla luctuosa (Pombal & Haddad, 1993) (Anura: Hylidae) | Lucas Machado Botelho, João Albert Bachur, Vanessa Kruth Verdade, Diego Almeida-Silva, Ivan Sazima, Edelcio Muscat - Predation of the rare casque-headed treefrog Trachycephalus mambaiensis (Hylidae: Lophiohylini) by the parrot-snake Leptophismystacinus (Colubridae) in a Cerrado-Caatinga ecotone | Isabella Parreira, Lucas Ninno, Reuber Albuquerque Brandão - New records of predation and feeding behavior of the vine snake Chironius brazili (Squamata: Colubridae) in the Espinhaço Mountain Range, Brazil | Vitor Otávio Ferreira Assunção, Gabriel Saturno Novedades zoogeográficas - Nuevos registros altitudinales de Bothrops ammodytoides Leybold, 1873 (Serpentes: Viperidae: Crotalinae) en la Cordillera de los Andes, San Juan, Argentina | Martina Feldman, Rodrigo Gómez Alés, Franco Valdez Ovallez, Yamila Méndez Osorio, Jeremías Luis Villafañe, Fabricio Gómez, Paola Andrea Carrasco - Range extension and natural history notes of Siphlophis leucocephalus | Clara A Salvino, Lucas Gabriel da Silva Rodrigues, Ubiratã Ferreira Souza, Pedro M. S. Nunes, Pedro Ivo Simões, José Henrique de Andrade Lima http://sedici.unlp.edu.ar:80/handle/10915/186141 Comunicacion Cuadernos de Herpetología; vol. 39, no. 2 En el presente trabajo reportamos nuevos registros altitudinales para Bothrops ammodytoides, confirmando su presencia a altitudes elevadas, con ejemplares encontrados entre los 2600 y 3100 m s.n.m. en la provincia de San Juan. Además, ampliamos la distribución de esta especie hacia el oeste de la Argentina, proporcionando información sobre los especímenes y características ambientales de los sitios de colecta más elevados. Tue, 30 Sep 2025 00:00:00 GMT http://sedici.unlp.edu.ar:80/handle/10915/186141 2025-09-30T00:00:00Z En el presente trabajo reportamos nuevos registros altitudinales para Bothrops ammodytoides, confirmando su presencia a altitudes elevadas, con ejemplares encontrados entre los 2600 y 3100 m s.n.m. en la provincia de San Juan. Además, ampliamos la distribución de esta especie hacia el oeste de la Argentina, proporcionando información sobre los especímenes y características ambientales de los sitios de colecta más elevados. http://sedici.unlp.edu.ar:80/handle/10915/186140 Comunicacion Cuadernos de Herpetología; vol. 39, no. 2 We found the specimen on September 6, 2024, during a fieldwork carried out between 2–10 of September 2024 at the ESEC-RC. This is a 99,772 ha, fully protected conservation unit, in the São Francisco River valley (Garda et al., 2013). We found the adult male Siphlophis leucocephalus while it was moving along a branch close to the ground, collected it manually and transported it to the improvised laboratory at ICMBIO (Instituto Chico Mendes de Conservação da Biodiversidade) headquarters. Tue, 30 Sep 2025 00:00:00 GMT http://sedici.unlp.edu.ar:80/handle/10915/186140 2025-09-30T00:00:00Z We found the specimen on September 6, 2024, during a fieldwork carried out between 2–10 of September 2024 at the ESEC-RC. This is a 99,772 ha, fully protected conservation unit, in the São Francisco River valley (Garda et al., 2013). We found the adult male Siphlophis leucocephalus while it was moving along a branch close to the ground, collected it manually and transported it to the improvised laboratory at ICMBIO (Instituto Chico Mendes de Conservação da Biodiversidade) headquarters. http://sedici.unlp.edu.ar:80/handle/10915/186138 Comunicacion Cuadernos de Herpetología; vol. 39, no. 2 Serra do Ramalho karst area is part of the Bambuí group, the largest geomorphological unit of Brazil. It is in southwestern state of Bahia, and extends over the municipalities of Carinhanha, Feira da Mata, Coribe, and Serra do Ramalho. We inspected 34 caves of Serra do Ramalho karst area, actively looking for amphibians. We were able to find amphibians in 12 caves. We sequenced some of the specimens found for the barcode mitochondrial 16S to confirm identifications. We found 13 species of amphibians, all anurans: Rhinella granulosa, Rhinella mirandaribeiroi, Oreobates remotus, Boana crepitans, Scinax sp. 26, Scinax x-signatus, Leptodactylus macrosternum, L. troglodytes, L. vastus, Physalaemus cicada, P. cuvieri, P. albifrons, and Odontophrynus carvalhoi. As far as it is possible to say, these amphibians are using the cave to daily and seasonal retreat, where they can possibly protect themselves from the drought and heat of Caatinga during the day. Tue, 30 Sep 2025 00:00:00 GMT http://sedici.unlp.edu.ar:80/handle/10915/186138 2025-09-30T00:00:00Z Serra do Ramalho karst area is part of the Bambuí group, the largest geomorphological unit of Brazil. It is in southwestern state of Bahia, and extends over the municipalities of Carinhanha, Feira da Mata, Coribe, and Serra do Ramalho. We inspected 34 caves of Serra do Ramalho karst area, actively looking for amphibians. We were able to find amphibians in 12 caves. We sequenced some of the specimens found for the barcode mitochondrial 16S to confirm identifications. We found 13 species of amphibians, all anurans: Rhinella granulosa, Rhinella mirandaribeiroi, Oreobates remotus, Boana crepitans, Scinax sp. 26, Scinax x-signatus, Leptodactylus macrosternum, L. troglodytes, L. vastus, Physalaemus cicada, P. cuvieri, P. albifrons, and Odontophrynus carvalhoi. As far as it is possible to say, these amphibians are using the cave to daily and seasonal retreat, where they can possibly protect themselves from the drought and heat of Caatinga during the day. http://sedici.unlp.edu.ar:80/handle/10915/186137 Comunicacion Cuadernos de Herpetología; vol. 39, no. 2 This study investigates the activity, habitat use, and ecological patterns of the arboreal treefrog Bokermannohyla luctuosa, based on long-term monitoring from April 2020 to August 2022 in São Francisco Xavier, São Paulo state, Brazil. Over 126 field trips, we recorded this frog 203 times across 17 sites, with significant seasonal variation in activity and habitat use. During the dry season (April to September), the animals frequently occupied waterfall spray zones, while wetter months saw decreased reliance on these habitats. Reproductive activity, including vocalizing males, gravid females, and tadpoles, was observed across multiple months, which indicates an extended reproductive period. Notable trophic interactions included predation by the larger treefrog Boana faber and the consumption of a harvestman by B. luctuosa. These findings highlight the importance of long-term monitoring to address knowledge gaps, particularly as climate change threatens amphibian habitats. Understanding seasonal microhabitat preferences can guide conservation strategies and improve fieldwork outcomes. Tue, 30 Sep 2025 00:00:00 GMT http://sedici.unlp.edu.ar:80/handle/10915/186137 2025-09-30T00:00:00Z This study investigates the activity, habitat use, and ecological patterns of the arboreal treefrog Bokermannohyla luctuosa, based on long-term monitoring from April 2020 to August 2022 in São Francisco Xavier, São Paulo state, Brazil. Over 126 field trips, we recorded this frog 203 times across 17 sites, with significant seasonal variation in activity and habitat use. During the dry season (April to September), the animals frequently occupied waterfall spray zones, while wetter months saw decreased reliance on these habitats. Reproductive activity, including vocalizing males, gravid females, and tadpoles, was observed across multiple months, which indicates an extended reproductive period. Notable trophic interactions included predation by the larger treefrog Boana faber and the consumption of a harvestman by B. luctuosa. These findings highlight the importance of long-term monitoring to address knowledge gaps, particularly as climate change threatens amphibian habitats. Understanding seasonal microhabitat preferences can guide conservation strategies and improve fieldwork outcomes. http://sedici.unlp.edu.ar:80/handle/10915/186136 Comunicacion Cuadernos de Herpetología; vol. 39, no. 2 Anurans are key prey for snakes, and their decline can affect snake diversity. Defensive behaviors in frogs are diverse and include secretions, distress calls, and body inflation. Frogs of the genus Trachycephalus, known as “milk frogs,” produce sticky and potentially toxic secretions. Predation events involving these frogs are rarely documented. We observed an adult parrotsnake Leptophis mystacinus preying on an adult treefrog Trachycephalus mambaiensis in a Cerrado–Caatinga transitional area in Minas Gerais, Brazil. The frog briefly escaped but was recaptured and ingested within 10 minutes. This is the first documented case of L. mystacinus preying on T. mambaiensis. Although Leptophis species are known to prey primarily on hylid frogs, little is known about the diet of L. mystacinus. This observation supports its potential specialization on nocturnal treefrogs and suggests that it may use both visual and olfactory cues to detect inactive prey during day. Tue, 30 Sep 2025 00:00:00 GMT http://sedici.unlp.edu.ar:80/handle/10915/186136 2025-09-30T00:00:00Z Anurans are key prey for snakes, and their decline can affect snake diversity. Defensive behaviors in frogs are diverse and include secretions, distress calls, and body inflation. Frogs of the genus Trachycephalus, known as “milk frogs,” produce sticky and potentially toxic secretions. Predation events involving these frogs are rarely documented. We observed an adult parrotsnake Leptophis mystacinus preying on an adult treefrog Trachycephalus mambaiensis in a Cerrado–Caatinga transitional area in Minas Gerais, Brazil. The frog briefly escaped but was recaptured and ingested within 10 minutes. This is the first documented case of L. mystacinus preying on T. mambaiensis. Although Leptophis species are known to prey primarily on hylid frogs, little is known about the diet of L. mystacinus. This observation supports its potential specialization on nocturnal treefrogs and suggests that it may use both visual and olfactory cues to detect inactive prey during day. http://sedici.unlp.edu.ar:80/handle/10915/186135 Comunicacion Cuadernos de Herpetología; vol. 39, no. 2 The vine snake Chironius brazili inhabits rocky campo rupestre environments in the Espinhaço Mountain Range, Brazil. Although species of Chironius primarily feed on anurans, we report new prey records for C. brazili, including the Cycloramphidae and the first documented case of fish predation in the genus. These records expand the known diet of C. brazili and demonstrate its ability to exploit different environments while foraging. Tue, 30 Sep 2025 00:00:00 GMT http://sedici.unlp.edu.ar:80/handle/10915/186135 2025-09-30T00:00:00Z The vine snake Chironius brazili inhabits rocky campo rupestre environments in the Espinhaço Mountain Range, Brazil. Although species of Chironius primarily feed on anurans, we report new prey records for C. brazili, including the Cycloramphidae and the first documented case of fish predation in the genus. These records expand the known diet of C. brazili and demonstrate its ability to exploit different environments while foraging. http://sedici.unlp.edu.ar:80/handle/10915/186134 Articulo Cuadernos de Herpetología; vol. 39, no. 2 Basic information on the natural history of species is essential for studies of evolutionary biology and ecology, in addition to being fundamental for developing conservation strategies. This study aimed to provide information on the activity and substrate use of Bothrops atrox in a floodplain forest in the western Brazilian Amazon. With a sampling effort of 816 personhours of time constrained, nocturnal visual search, 28 observations of 27 individuals were made, of which 16 were adults and 11 were juveniles. The encounter rate of B. atrox was one snake every 30 person-hours of searching, and most individuals were recorded during the rainy season. Considering the snake assemblage, Bothrops atrox represented 20.8% of the sampledsnakes, out of a total of 130 individuals of 21 species, being the second most frequent species. The ecological and morphological differences between the congeneric species B. atrox and B. bilineatus in this floodplain forest, as well as resource availability, likely influence their local abundance. These factors would also help minimize the probability of interspecific competition between these syntopic species.; Informações básicas sobre a história natural das espécies são essenciais para estudos de biologia evolutiva e ecologia, além de serem fundamentais para desenvolver estratégias de conservação. Este estudo teve como objetivo fornecer informações sobre a atividade e uso do substrato da serpente Bothrops atrox em uma floresta de várzea no oeste da Amazônia brasileira. Com um esforço amostral de 816 horas-pessoa de procura visual limitada por tempo noturna, foram realizadas 28 observações de 27 indivíduos, dos quais 16 eram adultos e 11 juvenis. A taxa de encontro de B. atrox foi de uma serpente a cada 30 horas-pessoa de procura, e a maioria dos indivíduos amostrados foi registrada durante a estação chuvosa. Bothrops atrox representou 20.8% das serpentes amostradas, de um total de 130 espécimes de 21 espécies, sendo a segunda espécie mais frequente. As diferenças ecológicas e morfológicas entre as espécies congenéricas B. atrox e B. bilineatus nesta floresta de várzea, bem como a disponibilidade de recursos, provavelmente influenciam a abundância local das espécies. Esses fatores também podem ajudar a minimizar a probabilidade de competição interespecífica entre as duas espécies. Tue, 30 Sep 2025 00:00:00 GMT http://sedici.unlp.edu.ar:80/handle/10915/186134 2025-09-30T00:00:00Z Basic information on the natural history of species is essential for studies of evolutionary biology and ecology, in addition to being fundamental for developing conservation strategies. This study aimed to provide information on the activity and substrate use of Bothrops atrox in a floodplain forest in the western Brazilian Amazon. With a sampling effort of 816 personhours of time constrained, nocturnal visual search, 28 observations of 27 individuals were made, of which 16 were adults and 11 were juveniles. The encounter rate of B. atrox was one snake every 30 person-hours of searching, and most individuals were recorded during the rainy season. Considering the snake assemblage, Bothrops atrox represented 20.8% of the sampledsnakes, out of a total of 130 individuals of 21 species, being the second most frequent species. The ecological and morphological differences between the congeneric species B. atrox and B. bilineatus in this floodplain forest, as well as resource availability, likely influence their local abundance. These factors would also help minimize the probability of interspecific competition between these syntopic species. Informações básicas sobre a história natural das espécies são essenciais para estudos de biologia evolutiva e ecologia, além de serem fundamentais para desenvolver estratégias de conservação. Este estudo teve como objetivo fornecer informações sobre a atividade e uso do substrato da serpente Bothrops atrox em uma floresta de várzea no oeste da Amazônia brasileira. Com um esforço amostral de 816 horas-pessoa de procura visual limitada por tempo noturna, foram realizadas 28 observações de 27 indivíduos, dos quais 16 eram adultos e 11 juvenis. A taxa de encontro de B. atrox foi de uma serpente a cada 30 horas-pessoa de procura, e a maioria dos indivíduos amostrados foi registrada durante a estação chuvosa. Bothrops atrox representou 20.8% das serpentes amostradas, de um total de 130 espécimes de 21 espécies, sendo a segunda espécie mais frequente. As diferenças ecológicas e morfológicas entre as espécies congenéricas B. atrox e B. bilineatus nesta floresta de várzea, bem como a disponibilidade de recursos, provavelmente influenciam a abundância local das espécies. Esses fatores também podem ajudar a minimizar a probabilidade de competição interespecífica entre as duas espécies. http://sedici.unlp.edu.ar:80/handle/10915/186132 Articulo Cuadernos de Herpetología; vol. 39, no. 2 Se describen antecedentes ecológicos de abundancia, uso de ambiente, uso de microhábitat y conducta de escape de Liolaemus schmidti en el altiplano de la Región de Tarapacá, Chile. Esta especie muestra mayor frecuencia y abundancia en ambientes terrestres con coironales, seguido por matorrales. Además, es mayoritariamente terrícola y utiliza frecuentemente la conducta de escape de ocultarse bajo arbustos. Estos antecedentes aportan a la escasa información documentada para esta especie con distribución conocida en Chile y Bolivia.; The ecological background of abundance, environment use, microhabitat use, and escape behavior of Liolaemus schmidti in the altiplano of the Tarapacá Region, Chile, is described. This species shows greater frequency and abundance in terrestrial environments with grasslands, followed by shrublands. In addition, it is primarily terrestrial and frequently uses the escape behavior of hiding under bushes. These antecedents contribute to the scarce information documented for this species, whose range is in Chile and Bolivia. Tue, 30 Sep 2025 00:00:00 GMT http://sedici.unlp.edu.ar:80/handle/10915/186132 2025-09-30T00:00:00Z Se describen antecedentes ecológicos de abundancia, uso de ambiente, uso de microhábitat y conducta de escape de Liolaemus schmidti en el altiplano de la Región de Tarapacá, Chile. Esta especie muestra mayor frecuencia y abundancia en ambientes terrestres con coironales, seguido por matorrales. Además, es mayoritariamente terrícola y utiliza frecuentemente la conducta de escape de ocultarse bajo arbustos. Estos antecedentes aportan a la escasa información documentada para esta especie con distribución conocida en Chile y Bolivia. The ecological background of abundance, environment use, microhabitat use, and escape behavior of Liolaemus schmidti in the altiplano of the Tarapacá Region, Chile, is described. This species shows greater frequency and abundance in terrestrial environments with grasslands, followed by shrublands. In addition, it is primarily terrestrial and frequently uses the escape behavior of hiding under bushes. These antecedents contribute to the scarce information documented for this species, whose range is in Chile and Bolivia.