Seasonal activity of snakes in the Atlantic forest in southeastern Brazil

Eterovic, André; Marques, Otávio A. V.; Endo, Whaldener

doi:10.1163/156853801750096213

Cited by 64 publications

(50 citation statements)

References 18 publications

(23 reference statements)

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“…No Núcleo Santa Virgínia, a variação sazonal de temperatura é claramente percebida, com temperaturas sensivelmente mais baixas de maio a setembro. Fatores bióticos como disponibilidade de presas e época reprodutiva também podem ser responsáveis por diferenças na taxa de encontro de serpentes ao longo do ano (Marques 1998, Marques et al 2000. Espécies de serpentes batracófagas ( Chironius spp.…”

Section: Atividade Sazonalunclassified

Ecologia e história natural de uma taxocenose de serpentes no Núcleo Santa Virgínia do Parque Estadual da Serra do Mar, no sudeste do Brasil

Hartmann

Martins

2009

Biota Neotrop.

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Ecology and natural history of a snake assemblage at Núcleo Santa Virgínia, Parque Estadual da Serra do Mar, southeastern Brazil. Biota Neotrop., 9(3): http:// www.biotaneotropica.org.br/v9n3/en/abstract?article+bn03609032009. Abstract:The objective of this study was to describe the natural history and the ecology of a snake assemblage in the Atlantic rainforest, at Núcleo Santa Virgínia, Parque Estadual da Serra do Mar, located on the northeastem of the state of São Paulo, southeastern Brazil. We describe richness, relative abundance, daily and seasonal activity, and substrate use, besides additional aspects of the natural history of the snakes. A total of 148 individuals, of 27 species, 19 genera and four families, were found within the area of the Núcleo Santa Virgínia. Species that were sampled more frequently were Bothrops jararaca, Xenodon neuwiedii and Liophis atraventer. Among the abiotic factors analyzed, minimum temperature, followed by mean temperature and rainfall are apparently the most important in determining snake abundance and/or activity. Most species presented a diet concentrated on one prey category or restricted to a few major food items. Frogs seem to be the most important food resource for snake assemblages in the Atlantic rainforest on the top of Serra do Mar. Our results indicate that the structure of the Núcleo Santa Virgínia snake assemblage reflects mainly the ecological characteristics of each of the lineages that compose the assemblage.

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Section: Atividade Sazonalunclassified

Ecologia e história natural de uma taxocenose de serpentes no Núcleo Santa Virgínia do Parque Estadual da Serra do Mar, no sudeste do Brasil

Hartmann

Martins

2009

Biota Neotrop.

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“…As a result of its association with movements, activity may vary depending on gender, age, reproductive condition, or molting (Duvall et al 1985, Macartney et al 1988. Unlike in temperate areas, in most tropical regions, the winter, even the most harsh, does not seem to prevent the activity of most ectotherms, which tend to remain active throughout the year (Marques et al 2000, Tozetti et al 2010.…”

Section: Introductionmentioning

confidence: 99%

“…In in tropical areas of South America, snake assemblages have shown activity peaks during the warmer, rainy season (mid-spring to early autumn; Marques et al 2000, Maciel et al 2003. The rattlesnake Crotalus durissus, however, exhibits a peak of activity in the dry/colder season (autumn) (Salomão et al 1995).…”

Section: Introductionmentioning

confidence: 99%

Daily and seasonal activity patterns of free range South-American rattlesnake (Crotalus durissus)

Tozetti

Martins

2013

An. Acad. Bras. Ciênc.

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This study aimed at describing daily and seasonal variation in the activity of a population of SouthAmerican rattlesnakes (Crotalus durissus) in a savanna like habitat (Cerrado) in Southeastern Brazil. Seasonal and daily activities of snakes were evaluated by the number of captures of snakes during road surveys, accidental encounters, and relocations by radio-tracking. Our results show that climatic variables such as air temperature and rainfall have little influence on the activity pattern of rattlesnakes. Our findings indicate that rattlesnakes spend most of the day resting and most of the night in ambush posture. The South-American rattlesnake is active throughout the year with a discrete peak in activity of males during the matting season. The possibility of maintaining activity levels even during the coldest and driest season can facilitate the colonization of several habitats in South America. This possibility currently facilitates the colonization of deforested areas by rattlesnakes.

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“…Furthermore, we found that both species C. durissus and B. jararaca have similar patterns of annual activity (18,19). There are two activity peaks, one at the transition from summer to fall, related to mating season, in which both males and females are active.…”

Section: Discussionmentioning

confidence: 81%

Microhabitat use by species of the genera Bothrops and Crotalus (Viperidae) in semi-extensive captivity

Ca¹,

Almeida-Santos²

2012

J. Venom. Anim. Toxins incl. Trop. Dis

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Many factors influence microhabitat including climate and the occurrence of predators, prey and suitable shelters. The influence of predators in a semi-extensive breeding system is minimized due to frequent monitoring of the area. This situation enables the independent analysis of such other variables as refuges and temperature. Some specimens of the Viperidae family are kept in a semi-extensive breeding system at the Butantan Institute for display and study. These animals are widely distributed in the Atlantic Forest and Cerrado, two biomes with distinct climatic characteristics. We compared the daily activity pattern and microhabitat use of the species Bothrops jararaca and Crotalus durissus terrificus. Our main questions were whether rattlesnakes and lancehead snakes respond to habitat selection differently in similar climatic conditions and if they choose similar microhabitats. Species of the genus Bothrops were frequently found under shelters regardless of the time of day. On the other hand, snakes of the genus Crotalus were frequently found sheltered during the early morning, then migrated to sunnier areas and returned to shelters in late afternoon.

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Seasonal activity of snakes in the Atlantic forest in southeastern Brazil

Cited by 64 publications

References 18 publications

Ecologia e história natural de uma taxocenose de serpentes no Núcleo Santa Virgínia do Parque Estadual da Serra do Mar, no sudeste do Brasil

Ecologia e história natural de uma taxocenose de serpentes no Núcleo Santa Virgínia do Parque Estadual da Serra do Mar, no sudeste do Brasil

Daily and seasonal activity patterns of free range South-American rattlesnake (Crotalus durissus)

Microhabitat use by species of the genera Bothrops and Crotalus (Viperidae) in semi-extensive captivity

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