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| Registros recuperados: 23 | |
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| Cappellari,Lize Helena; Lema,Thales de; Prates Jr.,Paulo; Rocha,Carlos Frederico Duarte da. |
| We analyzed stomach contents of 58 specimens of Teius oculatus (D'Orbigny & Bibron, 1837) (20 adult males, 17 adult females and 21 juveniles) captured in Dom Feliciano, RS, Brazil, to evaluate diet composition and sexual and ontogenetic variations in prey consumption. Diet was composed of 15 prey categories, all arthropods. Orthoptera was the most frequent prey type. Quantitatively, termites were the most important prey item (59.5%). There were no significant differences between the diets of adult males and females. Ontogenetic differences were found, mainly concerning volume of prey consumed. Adult lizards ingested significantly larger prey than juveniles (U = 170.00; p < 0.001). Juveniles, although having a comparatively less diverse diet (10... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lizards; Diet; Ontogenetic variation. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212007000100006 |
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| Ribeiro,Leonardo B.; Freire,Eliza M. X.. |
| This study aimed to analyze the seasonal variation in diet composition and foraging behavior of Tropidurus hispidus (Spix, 1825) and T. semitaeniatus (Spix, 1825), as well as measurement of the foraging intensity (number of moves, time spent stationary, distance traveled and number of attacks on prey items) in a caatinga patch on the state of Rio Grande do Norte, Brazil. Hymenoptera/Formicidae and Isoptera predominated in the diet of both species during the dry season. Opportunistic predation on lepidopteran larvae, coleopteran larvae and adults, and orthopteran nymphs and adults occurred in the wet season; however, hymenopterans/Formicidae were the most important prey items. The number of food items was similar between lizard species in both seasons;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diet; Foraging strategies; Lizards; Semiarid; Sympatric species. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212011000200010 |
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| Ferreira,Adelina; Kihara,Virginia Ojeda; Mehanna,Mahmoud. |
| Reproductive strategy is the set of adaptations that promote the most efficient way that the species will survive under the particular conditions of a determined environment. Understanding these adaptations is important and can help pinpoint populations indicator of environmental changes. Spermatogenesis is a measurable biological process of these adaptations in spatial and temporal scales. We analyzed the morphology of the testes and oviducts of the lizard species that comprise the genus Tropidurus, taking into account the geographical distribution and sympatric relations. For the analysis and the testes were removed from the middle part of the oviducts from Tropidurus etheridge, T. oreadicus, T. itambere, T. spinulosus and T. Guarani species, collected... |
| Tipo: Journal article |
Palavras-chave: Reproductive cycle; Lizards; Brazil. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000400058 |
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| Luiselli, L.; Angelici, F.M.; Di Vittorio, M.; Spinnato, A.; Politano, E.. |
| A field survey was conducted in a highly degraded barren environment in Sicily in order to investigate herpetofaunal community composition and structure, habitat use (niche breadth and overlap) and relative abundance of a snake predator and two species of lizard prey. The site was chosen because it has a simple community structure and thus there is potentially less ecological complexity to cloud any patterns observed. We found an unexpectedly high overlap in habitat use between the two closely related lizards that might be explained either by a high competition for space or through predator-mediated co-existence i.e. the prevention of the competitive exclusion of one lizard over the other. We also found a strong positive correlation between predator... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Herpetofauna; Sicily; Habitat use; Lizards; 42.82. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/214339 |
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| Avila-Pires, T.C.S.. |
| Eighty-nine species of lizards, six of which polytypic (forming a total of 97 taxa), are presently known from Brazilian Amazonia. This number includes six species and one subspecies described as new to science in this paper: Stenocercus fimbriatus, Lepidoblepharis hoogmoedi, Leposoma osvaldoi, L. snethlageae, Tretioscincus oriximinensis, Tupinambis longilineus, and Anolis nitens tandai. Stenocercus dumerilii is resurrected from the synonymy of S. tricristatus. Bachia cophias is considered a junior synonym of B. flavescens. B. peruana is a new record from Brazil. Anolis nitens has priority over A. chrysolepis. The Amazonian Tupinambis is shown to be T. teguixin (of which T. nigropunctatus is a junior synonym). The name T. merianae should be used for T.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Reptilia; Squamata; Lizards; Amazonia; Brazil; Zoogeography; Key.; 42.82. |
| Ano: 1995 |
URL: http://www.repository.naturalis.nl/record/317788 |
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| Avila-Pires, T.C.S.; Hoogmoed, M.S.. |
| Two new species of Pseudogonatodes Ruthven, 1915, are described, one from the Rio Juruá Basin, in the state of Acre, Brazil (Amazonian rainforest), the other from Rancho Grande, in the state Aragua, Venezuela (cloud forest). Both have granular dorsals and relatively numerous fourth toe lamellae, of which the third (from tip to base of toe) is not distinctly larger than the two distal ones. The species from the Rio Juruá is small, with dark belly, and recognised, among other characteristics, by its tall, conical to flat-conical dorsals. That from Rancho Grande is relatively large, with low number of ventrals, and mental with a straight or convex posterior segment medially, among other distinctive characteristics. Some remarks on the geographic distribution... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Coleodactylus; Gonatodes; Lepidoblepharis; Pseudogonatodes; Reptilia; Squamata; Lizards; New species; New record; Brazil; Venezuela; Geographic distribution; Amazonian rainforest; Cloud forest.; 42.82. |
| Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/215261 |
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| Dal Vechio,Francisco; Recoder,Renato; Zaher,Hussam; Rodrigues,Miguel Trefaut. |
| Micrablepharus maximiliani (Reinhardt & Luetken, 1861) is a microteiid lizard widely distributed in the open areas of South America. Little is known about its ecology and reproductive biology. Here, we analyzed aspects of the natural history of a population of M. maximiliani from a Cerrado area in the state of Piauí, northeastern Brazil. Our results suggest that the reproductive activity of M. maximiliani might be seasonal in the Cerrado, since reproductive females were observed only in the dry season, whereas reproductive males were present in both seasons. Vitellogenic follicles and oviductal eggs were found simultaneously in one female, suggesting that females may produce more than one clutch per season. Sexual dimorphism was observed in body... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diet; Ecology; Lizards; Reproduction; Sexual dimorphism. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000200002 |
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| Kolodiuk,Miguel F.; Ribeiro,Leonardo B.; Freire,Eliza M. X.. |
| In this study, we performed field observations of 38 and 84 specimens of the lizards Tropidurus hispidus (Spix, 1825) and Tropidurus semitaeniatus (Spix, 1825), respectively, inhabiting a Caatinga in the state of Rio Grande do Norte, northeastern Brazil, in order to describe the foraging behavior, measure the foraging intensity (number of movements, time spent stationary, distance traveled and number of attacks on preys) and investigate the effects of seasonality on the foraging strategies of these two species of lizards. During the dry season, both species showed no significant differences in foraging intensity. In the wet season, on the other hand, only the distance traveled was similar for both species. Tropidurus semitaeniatus displayed a larger mean... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Foraging mode; Lizards; Sympatric species. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000300026 |
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| Sales,Raul F.D.; Andrade,Maria J.M. de; Jorge,Jaqueiuto da S.; Kolodiuk,Miguel F.; Ribeiro,Matheus M.; Freire,Eliza M.X.. |
| The Neotropical lizard Mabuya agmosticha Rodrigues, 2000 is a habitat-specialist of thorny bromeliads in rocky outcrops of northeastern Brazil. Its distribution in the Caatinga Domain is most likely relictual. In recent years, new surveys conducted in northeastern Brazil have revealed new records of the species in the Caatinga and also in the Atlantic Forest Domain. In this study, we add four new records for M. agmosticha, extending its known geographic range in the states of Rio Grande do Norte and Paraíba. In addition, we investigated the potential geographical distribution of the species using ecological niche modeling (ENM), which combines the available occurrence records with environmental variables. Our model revealed a continuous range of areas with... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Biogeography; Caatinga; Lizards; Skinks; Species distribution models. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000100071 |
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| Lisboa,Carolina M. C. A.; Sales,Raul F. D.; Freire,Eliza M. X.. |
| We studied the feeding ecology of a population of Coleodactylus natalensis Freire, 1999, an endemic gecko of Atlantic Forest fragments in the state of Rio Grande do Norte, northeastern Brazil. Lizards (N = 49) were collected manually through active search in the four habitats of Parque Estadual Dunas de Natal, type locality of the species. In the laboratory, we measured the lizards and registered the number of consumed prey items identified to Order, its dimensions and frequencies. We also collected samples of leaf litter in each habitat to determine prey availability. Females were significantly larger than males, but head size did not differ between the sexes. The most important prey categories in the diet of C. natalensis based on number, volume and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arthropods; Diet; Electivity; Leaf litter; Lizards. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000400002 |
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| Cechin,Sônia Zanini; Martins,Marcio. |
| The effectiveness of pitfall traps associated with drift fences to capture amphibians and reptiles in three field studies, in Rio Grande do Sul (extreme southern Brazil), São Paulo (São Paulo, southeastern Brazil), and Amazonas (Amazonas, northern Brazil) is described. At Santa Maria, a total of 2040 amphibians and reptiles were caught in 30 pitfalls (200 L, with drift fence) during 18 months of study (capture efficiencies of 3.78 amphibians and reptiles/pitfall/month and 0.14 snake/pitfall/month). At Itirapina, São Paulo, 1262 amphibians and reptiles were obtained in 72 pitfalls (100 L, with drift fence) during six months (capture efficiencies of 11,9 amphibians and reptiles/pitfall/month and 0,38 snake/pitfall/month). At Rio Pitinga, Amazonas, over 600... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Traps; Communities; Lizards; Snakes; Amphibians; Herpetofauna; Brazil. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000300017 |
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| Carvalho,André L. G. de; Araújo,Alexandre F. B. de; Silva,Hélio R. da. |
| This study concerns the patterns of parasitism by the larvae of Eutrombicula alfreddugesi (Oudemans, 1910) on three species of Tropidurus Wied, 1820 from Cerrado habitats of Central Brazil: T. oreadicus Rodrigues, 1987 (n = 97), T. itambere (n = 85) and T. torquatus (Wied, 1820) (two samples n = 75, n = 23). The highest prevalence value was observed in T. itambere (88.2%), followed by T. oreadicus (87.6%), and T. torquatus (17.3% and 65.2%). The most important sites of infestation were the mite pockets and skin folds, especially on the neck and inguinal region. Tropidurus itambere Rodrigues, 1987 was the most heavily parasitized species (mean intensity of infestation: 36.67 ± 41.09), followed by T. oreadicus (15.38 ± 21.08), and T. torquatus from Unaí,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lizards; Mites; Ectoparasitism. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752006000400005 |
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| Carvalho,André L. G. de; Silva,Hélio R. da; Araújo,Alexandre F. B. de; Alves-Silva,Ricardo; Silva-Leite,Roberta R. da. |
| We compared the effects of habitat disturbance on the feeding ecology of two local populations of Tropidurus torquatus (Wied, 1820) in restinga habitats on Ilha da Marambaia, Southeastern Brazil. Both populations presented a relatively diverse diet and differ in the number (D Max = 0.22, DF = 2, p = 0.00) and volume of prey consumed (D Max = 0.82, DF = 2, p = 0.00). Ants were the most frequent and numerous preys in both areas, and plant matter and coleopterans were the most important alimentary items in volume. The population from the disturbed area presented a larger niche breadth for number of prey items consumed (Bi num = 3.06) and volume (Bi vol = 2.98), when compared to the other population (Bj num = 2.44, Bj vol = 1.52). Niche overlap was higher for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diet; Lizards; Optimal Foraging Theory. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752007000100029 |
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| Freire,Eliza Maria Xavier. |
| An inventory of the fauna of lizards was made in the dunes of Natal (Rio Grande do Norte, Brazil) and in the "restingas" (sandbanks with its associated vegetation) of Ponta de Campina (Cabedelo, Paraíba, Brazil) from October/84 to March/86. The objective was to know the composition and structure of these communities as well as to evaluate the zoogeographical importance of the spots. The samples were collected and the observations were made along of transects which were established to enable the sampling of the habitats under study in both areas. Each transect was crossed one day per month, during 14 months. The collect of lizards was made manually or through the use of a small gun, calibre 22, with ammunition of the type mustard lead. Observations were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sauria; Lizards; Ecology; Restinga; Brazil. |
| Ano: 1996 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400012 |
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| ALMEIDA-CORRÊA,Thais; FRAZÃO,Luciana; COSTA,Diogo Magalhães; MENIN,Marcelo; KAEFER,Igor Luis. |
| ABSTRACT The increasing urbanization of the Amazonian biome has promoted the creation of several forest fragments surrounded by an urban matrix, but the relationship of animal assemblages to the urban environment, especially in forest fragments, is poorly known. Here we aimed to 1) determine the composition of the squamate fauna of the largest urban forest fragment from central Amazonia, in the Brazilian city of Manaus, and 2) evaluate the influence of environmental parameters on assemblage diversity. We sampled 10 standardized riparian plots through visual search in six surveys between 2008/09 and 2015, totaling 360 observer-hours. We found 15 species of lacertoids (lizards and amphisbaenians) and seven species of snakes through active search. After... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphisbaenians; Edge effect; Lizards; Snakes; Urban ecology. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300239 |
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| WINCK,GISELE R.; HATANO,FABIO; VRCIBRADIC,DAVOR; VAN SLUYS,MONIQUE; ROCHA,CARLOS F.D.. |
| ABSTRACT Communities are structured by interactions of historical and ecological factors, which influence the use of different resources in time and space. We acquired data on time of activity, microhabitat use and diet of a lizard assemblage from a sand dune habitat in a coastal area, southeastern Brazil (Restinga de Jurubatiba). We analyzed the data of niche overlap among species in these three axes (temporal, spatial and trophic) using null models. We found a significant overlap within the trophic niche, whereas the overlap for the other axes did not differ from the expected. Based on this result, we discuss the factors acting on the structure of the local lizard community. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Null models; Communities; Sand dune habitat; Lizards; Brazil. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000200677 |
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| Oliveira,Jane C. F.; Santos,Rafael dos; Lopes-Silva,Mateus Leite; Barros,Lorena da Penha Vasconcelos; Risse-Quaioto,Bárbara; Militão,Cátia Moura; Fatorelli,Pedro; Belmoch,Flávia A. L.; Castro,Thiago Marcial de; Rocha,Carlos Frederico Duarte. |
| Abstract: Data on the composition of local reptile assemblages in several Brazilian ecosystems can still be considered relatively restricted in scope in most cases. In this study, we conducted surveys in the Serra das Torres Natural Monument, located in the municipalities of Atílio Vivacqua, Muqui, and Mimoso do Sul, using the Rapid Assessments method (RAP) during 30 days in the rainy season of 2018. We sampled actively for approximately 1320 hours with a 6-10 person crew, supplemented by 720 hours of passive sampling (30 bucket-days) using pitfall traps with drift fences. We recorded 34 reptile species during our sampling method (2 amphisbaenid, 11 lizards, and 21 snakes) and an occasional encounter, after the end of sampling, that added a chelonian... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphisbaenia; Brazilian state of Espírito Santo; Community; Herpetofauna; Lizards; Snakes; Squamata. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000200203 |
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| Registros recuperados: 23 | |
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