SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Bujes,Clóvis S.; Verrastro,Laura.

The activity pattern of the small sand lizard, Liolaemus occipitalis Boulenger, 1885, was investigated in the coastal sand dunes at Quintão beach (Palmares do Sul, southern, Brazil), between September 1998 and August 1999. The results showed that L. occipitalis is active all along the year, but with variations in its daily and seasonal activity patterns associated to climatic changes in the habitat. Lizard activity pattern was distributed as follows: under the sand, burrowed (73%), under vegetation (14%), dislocation (7%) and basking (6%). Mean habitat temperatures (air and substrate) were significantly different. The results indicate that L. occipitalis is a thigmothermic and heliothermic species that regulates its body temperature through behavioral...

Approaches to capturing the Black and White Tegu Salvator merianae (Squamata: Teiidae)

Palavras-chave: Liolaemus; Microhabitat use; Sand dunes.

Ano: 2008

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000100020

Rev. Bras. Zool.

Vieira,Renata C.; Oliveira,Arthur S. de; Fagundes,Nelson J.R.; Verrastro,Laura.

ABSTRACT The use of traps is extremely important in several types of ecological studies, and may assist in the capture of individuals in areas that are difficult to access. In the present study, we compared the effectiveness of wooden (Schramm) versus "Tomahawk" traps to capture Salvator merianae (Duméril & Bibron, 1839) lizards. The study was conducted in Eldorado do Sul, Rio Grande do Sul, Brazil. Field data were collected from August 2013 to March 2015, during the reproductive period of the species. The study involved two types of baited traps: i) "Tomahawk", made of galvanized steel; and ii) Schramm, a wooden trap. The capture rate of the Schramm wooden traps was 1.63 individuals/day, and of the "Tomahawk" was 0.36 individuals/day. These results...

Tipo: Info:eu-repo/semantics/other

Palavras-chave: Capture; Ecology; Traps; Tomahawk.

Ano: 2015

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000400317

Breve histórico da revista Iheringia Série Zoologia e seu impacto sobre o conhecimento da fauna neotropical recente

Sanfelice,Daniela; Bencke,Glayson A.; Azevedo,Marco A.; Rodrigues,Everton N. L.; Moura,Luciano A.; Araujo,Paula B.; Gastal,Hilda A. O.; Verrastro,Laura; Jardim,Márcia M. A.; Schwertner,Cristiano F.; Marques,Maria Aparecida L.; Drehmer,César J..

Tipo: Info:eu-repo/semantics/other

Ano: 2010

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212010000400011

Ciclo reprodutivo de machos de Liolaemus occipitalis Boulenger (Sauria, Tropiduridae)

Verrastro,Laura; Krause,Lígia.

The aim of this work is to describe the reprodutive cycle of the males of L. occipitalis from the coastal sand-dunes of Rio Grande do Sul State, Brazil. It was carried out between April/86 and March/88, at Jardim Atlântico Beach, Tramandaí, Rio Grande do Sul. These lizards showed reprodutive activity between September and December, with a retreat period during January and February. The seasonality of the reprodutive cycle became fully evident by the monthly variation of the testicular mass, showing an inverse relation with the temperature along the year.

Descrição do esqueleto axial de Liolaemus arambarensis Verrastro, Veronese, Bujes & Dias Filho (Iguania, Liolaemidae): regiões pré-sacral e sacral

Palavras-chave: Tropiduridae; Liolaemus; Neotropical lizards; Reproductive cycle.

Ano: 1999

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000100019

Silva,Caroline M. da; Verrastro,Laura.

Liolaemus arambarensis Verrastro, Veronese, Bujes & Dias Filho, 2003 (Iguania, Liolaemidae) é um pequeno lagarto de areia, que vive nos ambientes de restingas da Laguna dos Patos. A descrição do esqueleto desta espécie pode elucidar algumas relações filogenéticas em relação a outras espécies do gênero. Tendo por objetivo a descrição das regiões pré-sacral e sacral do esqueleto axial de L. arambarensis, foram analisados sete exemplares da espécie. Observou-se que a maior estrutura axial é a coluna vertebral, que é dividida nas regiões: cervical, dorsal, sacral e caudal. A região cervical possui oito vértebras, e as costelas aparecem a partir da quarta vértebra. A região dorsal é dividida em: torácica, com cinco vértebras portando costelas unidas ao...

Microhabitat use by Cnemidophorus vacariensis (Squamata: Teiidae) in the grasslands of the Araucaria Plateau, Rio Grande do Sul, Brazil

Palavras-chave: Coluna; Costelas; Esterno; Interclavícula; Vértebras.

Ano: 2007

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752007000100001

Rev. Bras. Zool.

Caruccio,Rodrigo; Vieira,Renata C.; Verrastro,Laura.

Microhabitat use by Cnemidophorus vacariensis Feltrim & Lema, 2000 as studied between October 2006 and September 2007 in two rocky formations in the municipality of Bom Jesus. The area was searched randomly between 8:00 am and 6:00 pm and the microhabitat used by the lizards was recorded. Our observations revealed that C. vacariensis has terrestrial habits and prefers open areas. Burrows are the main microhabitat used by the species (56.38%). When in activity, 54.76% of the individuals were observed under rocks, and 38.1% on the ground where herbaceous vegetation was present. The rocks under which they constructed their burrows were on average significantly thicker during warmer seasons temperatures (x¯ = 13,45cm) with respect to colder seasons (x¯...

Observações sobre o comportamento de Liolaemus occipitalis em cativeiro (Sauria, Tropiduridae)

Palavras-chave: Burrows; Rocks; Thermoregulation; Shelter.

Ano: 2010

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000600011

Bujes,Clóvis Souza; Verrastro,Laura.

Liolaemus occipitalis (Boulenger, 1885) is an abundant lizard lbundalong lhe coastal dunes of Rio Grande do Sul, Brazil. Fourteen individuais were manually captured in the dunes of Quintão beach (Palmares do Sul, Rio Grande do Sul) and studied in captivity from 23/VII/92 to 30/VII/93. They were kept in a terrarium with sand substrate and vegetation collected in their habitat. Snout-vent length (SVL) and wcighted were measured weekly. They received Tenebrio molitor (Linnaeus, 1758) worms as food; water was abundant. Combats between males for food and territory, and other behavioral displays were observed, like copulation and nesting behaviors. Growth curves for each lizard were analyzed.

Playing dead to stay alive: death-feigning in Liolaemus occipitalis (Squamata: Liolaemidae)

Palavras-chave: Tropiduridae; Liolaemus; Agonistic behavior; Captivity; Growing rate; Reproductive behavior.

Ano: 1998

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000400008

Biota Neotropica

Santos,Maurício Beux dos; Oliveira,Mauro Cesar Lamim Martins de; Verrastro,Laura; Tozetti,Alexandro Marques.

Predation is the major selective force that drives the development of a series of defense mechanisms by the species. These mechanisms are efficient in that it limits the ability of predators to detect, recognize and subdue their prey. In lizards for example, the tail loss and locomotor escape are the most common defensive behavior reported on the literature. Additionally, in response to external stimuli, some lizards exhibit a peculiar defensive behavior: death-feigning or thanatosis. Here we describe the first record of death-feigning in a population of Liolaemus occipitalis in a coastal sand dune habitat in Southernmost Brazil. A total of 86 individuals were tested. During handling 75.6% of lizards feigned death. The duration of this behavior was longer...

Tipo: Info:eu-repo/semantics/other

Palavras-chave: Thanatosis; Behavior; Sand-dune lizard; Pampa; Restinga.

Ano: 2010

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000400043

Quando e onde vocaliza Sphaenorhynchus surdus (Anura: Hylidae) no sul do Brasil?

Volkmer,Gabriele; Fonte,Luis F. M. da; Brum,Fernanda T.; Verrastro,Laura.

RESUMO Estudos sobre distribuição espacial e temporal de anfíbios têm se mostrado importantes para o entendimento das relações entre as espécies e o ambiente. Nesse sentido, constata-se que essas informações acerca de espécies do gênero Sphaenorhynchus Tschudi, 1838 no Rio Grande do Sul ainda não foram levantadas. Esta pesquisa, cujo objetivo principal foi a caracterização da distribuição espacial e temporal de Sphaenorhynchus surdus (Cochran, 1953) durante atividade de vocalização, bem como a análise dos principais fatores climáticos associados a essa atividade, foi conduzida em três corpos d’água com diferentes características da região dos Campos de Cima da Serra, nos municípios de Bom Jesus e Vacaria. As expedições a campo aconteceram mensalmente com a...

Reproductive biology and sexual dimorphism in Cnemidophorus vacariensis (Sauria, Teiidae) in the grasslands of the Araucaria Plateau, southern Brazil

Palavras-chave: Hylidae; Sítio de vocalização; Turno de vocalização; Rio Grande do Sul.

Ano: 2017

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212017000100229

Rezende-Pinto,Fabíola M.; Verrastro,Laura; Zanotelli,Juliana C.; Barata,Paulo C. R..

The reproductive cycle and sexual dimorphism of the lizard Cnemidophorus vacariensis Feltrim & Lema, 2000 were studied on the basis of data gathered between August 2004 and August 2006 in Vacaria, Rio Grande do Sul, Brazil. Snout-vent length (SVL) of sexually mature males varied between 48.8 and 72.9 mm (x = 63.3 ± 6.0 mm; n = 76) and, for females, between 57.4 and 81.8 mm (x = 70.0 ± 5.9 mm; n = 73). Other morphological characteristics were also compared between sexes. Reproduction was seasonal, and observations indicate two clutches in the same reproductive season. Clutch size and other reproductive characteristics were analyzed as well as the relation between reproduction and environmental factors. Cnemidophorus vacariensis is apparently endemic...

Ritmo de atividade de Liolaemus Occipitalis boulenger (Sauria, Tropiduridae) na praia de Quintão, Rio Grande do Sul, Brasil

Palavras-chave: Teiidae; Cnemidophorus vacariensis; Reproduction; Sexual dimorphism; Conservation.

Ano: 2009

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212009000100012

Verrastro,Laura; Bujes,Clóvis Souza.

The activity rhythm of the lizard Liolaemus occipitalis Boulenger, 1885 was studied during the summer of 93 at the sand dunes of the Quintão beach, from 06:00-18:00h. During sunny days this lizard exhibited two peaks of activity (1000-1200h and 1400-1600h), and in the cloudy days it exhibited one peak of activity (1200-1400h). The number of burrows was observed and the different soil temperatures was compared with the rhythm of activity exhibited by the lizards. Rhythm of activity is determined mainly by soil surface temperatures.

Sexual dimorphism in Liolaemus occipitalis (Iguania, Tropiduridae)

Palavras-chave: Tropiduridae; Liolaemus occipitalis; Activity; Neotropical lizards; Sand dunes.

Ano: 1998

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000400009

Verrastro,Laura.

The sexual dimorphism in size, morphology and color of the lizard Liolaemus occipitalis Boulenger, 1885 was studied. Thirty-two adult males and twenty-eight adult females were sampled from a population in the Jardim do Éden beach, near Tramandaí, Rio Grande do Sul, Brazil. Size related sexual dimorphism occurred in all compared body dimensions. The largest female was 59.6 mm in snout-vent length, and the largest male was 69.3 mm. Males and females also presented differences in ventral and dorsal color pattern, and in the presence of pre-cloacal pores. The results suggest that, in Liolaemus occipitalis, sexual dimorphism in size is determined by sexual selection, competition between males and by the high energetic cost for females a few months after hatching.

Supernumerary epidermal shields and carapace variation in Orbigny's slider turtles, Trachemys dorbigni (Testudines, Emydidae)

Palavras-chave: Sauria; Liolaemus; Sexual dimorphism; Sexual selection.

Ano: 2004

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212004000100007

Bujes,Clóvis S.; Verrastro,Laura.

The epidermal plates of the carapace and plastron of 51 adults (38 females and 13 males), 07 immature individuals, and 46 hatchlings of the freshwater turtle Trachemys dorbigni (Durémil & Bibron, 1835), originated from the delta of Rio Jacuí region, Rio Grande do Sul state, Brazil, were examined. The results showed that 7.7% of males, 10.52% of females, 14.28% of immature individuals, and 6.52% of the hatchlings presented a kind of anomaly on the shell, as well as a presence of supernumerary epidermal shields. Although the modification in the number of epidermal shields presents a high frequency in Testudines, these are the first descriptions of the variation in the pattern of carapacial scutation in eleven individuals from a population of T....

The lizard that never sleeps: activity of the pampa marked gecko Homonota uruguayensis

Palavras-chave: Delta do Jacuí State Park; Epidermal scutes; Freshwater turtles; Shells anomaly.

Ano: 2007

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752007000300018

Vieira,Renata C.; Verrastro,Laura; Borges-Martins,Márcio; Felappi,Jéssica F..

ABSTRACT It is generally assumed that lizards are active whenever climatic conditions are favorable. Homonota uruguayensis (Vaz-Ferreira & Sierra de Soriano, 1961) is the only native gecko - and nocturnal lizard - living in the northern Pampa biome, and its ecology is poorly known. This study aimed at describing this species’ pattern of daily and annual activity and its relation with environmental temperatures. The study was conducted in the extreme south of Brazil (Rosário do Sul, State of Rio Grande do Sul), between May 2010 and January 2011 at a rocky outcrop located in the Pampa biome. The study was carried out in a total of four seasonal field trips, totalizing 1185 hours of field work. The data were collected, both during the day and the night in...

Thermal biology, activity, and population parameters of Cnemidophorus vacariensis (Squamata, Teiidae), a lizard endemic to southern Brazil

Palavras-chave: Nocturnal activity; Uruguayan savanna; Seasonality; Thermal ecology.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100211

Caruccio,Rodrigo; Vieira,Renata Cardoso; Verrastro,Laura; Machado,Denise Mello.

We investigated the following aspects of the biology of a population of Cnemidophorus vacariensis Feltrim & Lema, 2000 during the four seasons: thermal biology, relationship with the thermal environment, daily and seasonal activity, population structure and growth rate. Cnemidophorus vacariensis is restricted to rocky outcrops of the "campos de cima da serra" grasslands on the Araucaria Plateau, southern Brazil, and is currently listed as regionally and nationally threatened with extinction. Data were collected from October 2004 through September 2007 in the state of Rio Grande do Sul. Sampling was conducted randomly from 08:00 a.m. to 6:00 p.m. The capture-mark-recapture method was employed. The lizards were captured by hand, and their cloacal...

Thermal biology of Amphisbaena munoai (Squamata: Amphisbaenidae)

Palavras-chave: Body temperature; Growth; Density-biomass; Temperate region; Tigmothermy.

Ano: 2011

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212011000300002

Rev. Bras. Zool.

Matias,Nathalia Rocha; Verrastro,Laura.

ABSTRACT Studies on the thermal biology of fossorial reptiles that examine the relationship between the body temperature and thermal environment are needed to determine the extent of their thermoregulation abilities. This study assessed the thermal biology of Amphisbaena munoai Klappenbach, 1969 in the rocky fields of the Rio Grande do Sul and in the laboratory. The body temperature of most individuals was between 24 and 30 °C, both in the field (n = 81) and laboratory (n = 19). More individuals were caught in winter (n = 55) and spring (n = 60) than in summer (n = 25) and fall (n = 45), and in spring, individuals showed similar nocturnal and diurnal activities. In the laboratory, we found individuals with body temperatures up to 5 °C higher than the...