Diversity and habitat use by snakes and lizards in coastal environments of southernmost Brazil

Santos, Maurício Beux dos; Oliveira, Mauro César Lamim Martins de; Tozetti, Alexandro Marques

doi:10.1590/s1676-06032012000300008

Cited by 8 publications

(4 citation statements)

References 27 publications

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“…However, the examined specimens (including those from the collections) were captured through regular surveys using homogeneous sampling efforts. Therefore, the low number of specimens captured in June-July suggests a period when the females reduce their activity or mobility (Santos et al 2012). This behavior is likely associated with the need to reduce energy costs and the accumulation of yolk in the follicles.…”

Section: Discussionmentioning

confidence: 99%

“…In our study site, previous sampling using pitfall traps and visual sampling (unpublished data) demonstrated that T. hypoconia is one of the most abundant snake species. Being a viviparous snake should contribute to their reproductive success and consequently, to their high population density in the region (Santos et al 2012). Moreover, while it is considered to be a relatively cold climate by Neotropical standards, even during the winter, the daily peak temperatures often exceed 25°C, favoring thermoregulation.…”

Section: Discussionmentioning

confidence: 99%

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Reproductive biology of Thamnodynastes hypoconia (Serpentes: Dipsadidae) in Brazilian subtemperate wetlands

Rebelato

Pontes

Tozetti

2016

An. Acad. Bras. Ciênc.

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This study aimed to describe the reproductive biology of populations of Thamnodynastes hypoconia in subtemperate wetlands based on macroscopic analyses of their gonads. We analyzed 101 specimens from the southernmost regions of Brazil. The males had a greater snout-vent length, but the females reached sexual maturity with a greater body size. The reproductive cycle of the females was seasonal, with secondary vitellogenesis occurring between the winter and spring (May-October). Based on macroscopic analysis of gonads, data suggests that males have a continuous reproductive cycle. Parturition occurs between the late summer and early fall (January-April). The clutch size ranged between 4 and 16 embryos and showed no relationship with the female's body size. The recorded reproductive frequency of T. hypoconia is low (38 %) compared to other phylogenetically related species. Conversely, the studied populations appear to have a high reproductive success because it is an abundant species in the study site.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Reproductive biology of Thamnodynastes hypoconia (Serpentes: Dipsadidae) in Brazilian subtemperate wetlands

Rebelato

Pontes

Tozetti

2016

An. Acad. Bras. Ciênc.

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“…Although the reptiles of costal Restingas have been commonly studied in the Southeast and Central Atlantic Forest (Rocha 2000, Santos et al 2012, Marques et al 2016), little information is available for northern portions of the biome, and here we present the first records of snakes from coastal Restingas of Paraíba State. We found some similarities of composition in this habitat with both Boaconstrictor and Tantillamelanocephala that also commonly are found in southeastern Restingas (Dias and Rocha 2014, Martins et al 2012), and aquatic snakes found both in fresh and salty water.…”

Section: Discussionmentioning

confidence: 99%

“…Although some studies have been carried out in the restingas areas of the southeast of Brazil and in the State of Bahia in the northeast of Brazil (e.g. Rocha 2000, Hamdan and Lira-da-Silva 2012, Santos et al 2012, Dias and Rocha 2014, Marques et al 2016), no study was conducted in these environments in the most septentrional portion of the Atlantic Forest of the Northeast.…”

Section: Introductionmentioning

confidence: 99%

Ecological diversity of a snake assemblage from the Atlantic Forest at the south coast of Paraíba, northeast Brazil

Sampaio¹,

Santos²,

França³

et al. 2018

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Despite an increase in studies focusing on snake ecology and composition in the northeastern Atlantic Forest, several poorly studied sites and environments remain. The aim of this study was to assess species richness and natural history attributes of the snakes of an assemblage in the Restinga, Tabuleiro and Forest environments of the Atlantic Forest of the south coast of Paraíba, northeastern Brazil. A total of 151 individuals of 27 species, 23 genera, and six families of snakes were found. The most effective sampling methods were time-constrained searches and incidental encounters. Species sampled most frequently were the blindsnake Epictiaborapeliotes, the Boa Constrictor Boaconstrictor, the Brown Vinesnake Oxybelisaeneus, and the Brazilian False Coral Snake Oxyrhopustrigeminus. The snake fauna is characterized mainly by terrestrial species found in open-area environments of Restinga and Tabuleiro, and with most species feeding on amphibians and small mammals. The rarefaction curve did not reach the asymptote and new species should be recorded for south coast of Paraíba in future studies. Despite the richness and composition of snakes of the south coast being similar to other areas in the state, there is a lack of some species typically linked to forests, and this is probably because of the high level of deforestation that the south area of the state has suffered.

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Diversity patterns of lizard assemblages from a protected habitat mosaic in the Brazilian Cerrado savanna

et al. 2022

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Differences in habitat complexity and structure can directly influence the composition, diversity, and structure of species assemblages. Measurements of functional and phylogenetic diversity complement the commonly used measurements of taxonomic diversity, elucidating the relationships between species, their traits, and their evolutionary history. In this study, we evaluated how the mosaic of open and forested formations in a federal conservation unit in the western portion of the Brazilian Cerrado savanna influences the taxonomic, functional, and phylogenetic structure of lizard assemblages. Lizards were sampled for 15 months using pitfall traps set in open and forested formations. We recorded 292 lizards distributed among 16 species from eight families, with species composition differing among the formations. Richness was greater in the assemblages from open formations, while functional diversity and phylogenetic variability were greater in those of forested formations. Lizard assemblages in open formations were functionally and phylogenetically clustered, probably as a result of environmental filters acting on species, while the assemblages from forested formations were randomly structured. Different environmental and historical mechanisms have apparently shaped the current diversity of lizards in the region. This study shows that Cerrado vegetation mosaics can promote wide variation in different aspects of the taxonomic, functional, and phylogenetic structure from the lizard assemblages.

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Diversity and habitat use by snakes and lizards in coastal environments of southernmost Brazil

Cited by 8 publications

References 27 publications

Reproductive biology of Thamnodynastes hypoconia (Serpentes: Dipsadidae) in Brazilian subtemperate wetlands

Reproductive biology of Thamnodynastes hypoconia (Serpentes: Dipsadidae) in Brazilian subtemperate wetlands

Ecological diversity of a snake assemblage from the Atlantic Forest at the south coast of Paraíba, northeast Brazil

Diversity patterns of lizard assemblages from a protected habitat mosaic in the Brazilian Cerrado savanna

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