Natural history and biological aspects of dipsadidae snakes:P. olfersii,P. patagoniensisandP. nattereri

Vasconcelos-Filho, Francisco Sérgio Lopes; Rocha-e-Silva, Roberta Cristina da; Vasconcelos, Rebeca Horn; Neto, Joselito de Oliveira; Silveira, João Alison de Moraes; Morais, Glayciane Bezerra de; Pessoa, Nathalie Ommundsen; Evangelista, Janaína Serra Azul Monteiro

doi:10.5935/1981-2965.20150036

Cited by 3 publications

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“…Many digeneans found in the snakes analyzed, such as Opisthogonimus spp., Styphlodora spp. and Travtrema stenocotyle, have as intermediate hosts amphibian anurans (Hamann & González, 2009;Hamann et al, 2012;Ostrowski-De Núñez, 1979in Pinto et al, 2012, which are food resources for several snake species (Thaler et al, 2018;Vasconcelos-Filho et al, 2015). Some of these parasites were present in B. alternatus, corroborating diet studies of the species, which, besides mammals, can also feed on amphibians, even if sporadically (Bellini et al, 2015).…”

Section: Discussionmentioning

confidence: 73%

Digenea parasitizing snakes in Pampa Biome, southern Brazil

2022

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The diversity of digenetic helminths of snakes from the Pampa Biome is poorly known, with few records in Brazil, Argentina, and Uruguay. The present study documents species of Digenea parasitizing snakes in the Pampa Biome, southern Brazil. Forty-two individuals belonging to 11 species of Dipsadidae and Viperidae were examined. A total of 178 specimens belonging to 9 taxa of digenetic trematodes were found in 50% of the snakes analyzed. Habitats and host behavior may influence the parasite fauna of snakes, since helminth diversity and abundance were greater in hosts present in semi-aquatic and grassland environments. Further, 89% of digenetic trematodes use anurans as second intermediate hosts; according to the literature, anurans are the most common food resource for these snakes. In this context, studies of diet and helminth fauna of snakes are complementary and contribute to the understanding of the biology of species and their role in ecosystems.

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Section: Discussionmentioning

confidence: 73%

Digenea parasitizing snakes in Pampa Biome, southern Brazil

2022

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“…Philodryas olfersii occasionally preys on adult and nestling birds living in cages and artificial nests in human habitations near native vegetation [27,28, this study]. As observed in the present study, individuals of P. olfersii can be killed by humans while actively searching for prey in human habitations, while in other cases humans can be envenomed by the snake [27][28][29].…”

Section: The Neotropical Dipsadidmentioning

confidence: 64%

An opportunist predator hidden in the vegetation: on the predation of birds by Philodryas olfersii (Serpentes: Dipsadidae)

Mise

Miranda

Santos

et al. 2021

Neotropical Biodiversity

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Snakes are common predators of birds. However, reported cases of snake predation on Troglodytes musculus are scarce. Here, we report a predation attempt of a Troglodytes musculus nestling by the dipsadid snake Philodryas olfersii. We also present a list with bird species recorded as prey of this snake species. We found 25 predation events of P. olfersii on adult, juvenile, and nestling birds. A total of 19 bird species from 14 families have been reported as prey of P. olfersii. Most predation events occurred on the vegetation, while some others were observed on the ground, cage, and artificial nest. Serpentes são predadores comuns de aves. No entanto, casos relatados de predação de Troglodytes musculus por serpentes são escassos. Aqui, relatamos uma tentativa de predação de um filhote de Troglodytes musculus pela serpente Philodryas olfersii. Também apresentamos uma lista de espécies de aves registradas como presas dessa espécie de serpente. Encontramos 25 eventos de predação de P. olfersii sobre aves adultas, juvenis e filhotes. Um total de 19 espécies de aves pertencentes a 14 famílias foram relatadas como presas de P. olfersii. A maioria dos eventos de predação ocorreu na vegetação, enquanto alguns outros foram observados no solo, gaiola e ninho artificial.

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“…The physical examination revealed the presence of erythema, significant edema, and ecchymosis in the entire arm with no systemic abnormalities. Although not considered poisonous, P. olfersii and the snakes of the subfamily Dipsadidae (formerly Colubridae) as of medical and scientific importance 15 which encourages more studies to improve diagnosis and treatment of these poisonings.…”

Section: Snake Bites Occurrencementioning

confidence: 99%

Philodryas olfersii: state of the art

Franco¹,

Farias-De-França²,

Assunção³

2022

IJCAM

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Philodryas sp. in particular, P. olfersii is an attractive snake emanated by its green color, with a brown stripe along the back, and an inoffensive appearance. Accidents are rare due to the posterior position of the inoculating teeth (opisthoglyphous), but they are not freeeffects either local as systemic. Although most studies with this poison date back less than 3 decades, which started with the Duvernoy's gland secretion and came to transcriptomic analysis, besides the fractioning of the venom to isolate substances responsible for toxic effects, all efforts are converging to the understanding of its pathological mechanisms. We immersed in a scientific platform looking for Philodryas olfersii aiming to establish its "state of the art". In this work, we hope to sensitize the medical community about the severity of envenomation by P. olfersii can cause, mainly to children, and also the population about the risks of manipulation of this sympathetic snake. Besides, we reinforce that any therapeutic strategy aiming to mitigate the clinical evolution of envenoming is highly desirable.

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Natural history and biological aspects of dipsadidae snakes:P. olfersii,P. patagoniensisandP. nattereri

Abstract: Natural history and biological aspects of dipsadidae snakes: P. olfersii, P. patagoniensis and P. nattereri História natural e aspectos biológicos de serpentes dipsadidae: P. olfersii, P. patagoniensis e P.

Cited by 3 publications

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Digenea parasitizing snakes in Pampa Biome, southern Brazil

Digenea parasitizing snakes in Pampa Biome, southern Brazil

An opportunist predator hidden in the vegetation: on the predation of birds by Philodryas olfersii (Serpentes: Dipsadidae)

Philodryas olfersii: state of the art

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