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| Registros recuperados: 34 | |
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| Moreira,Lorena A.; Fenolio,Danté B.; Silva,Hélder Lúcio Rodrigues; Silva Jr,Nelson Jorge da. |
| Termite mounds are known to offer refuge and microhabitats to a great variety of invertebrates and vertebrates. In the valley of the upper Tocantins River, within areas of influence of hydroelectric power plants 4,000 termite mounds were surveyed to evaluate the diversity of amphibians and reptiles using these environments. Surveys in termite mounds from two other areas (Corumbá River and Araguaia River basins) were used for comparative purposes. The results for termitaria in the upper Tocantins river valley revealed nine families, 13 genera, and 25 species of amphibians, and 16 families, 32 genera, and 47 species of squamate reptiles. Compared to a general herpetofaunal list of the region, the data indicate that between 30.6% and 56.8% of the species use... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibians; Reptiles; Termite Mounds; Cerrado. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492009001500001 |
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| Ubeda,Carmen; Grigera,Dora. |
| Sobre la base de una evaluación del estado de conservación de la herpetofauna de Argentina, publicada recientemente, se analizan los factores determinantes del estatus asignado, con énfasis en las especies de las categorías que indican una mayor amenaza. De los 484 taxa evaluados el 23 % tiene problemas de conservación. Una proporción importante de estas especies tiene áreas de distribución restringidas, especialización en el uso del hábitat, está poco protegida y sufre acciones extractivas. Se analizan los principales factores de amenaza sobre los herpetozoos, encontrándose que la mayoría está afectada por la alteración del hábitat. Los reptiles sufren el comercio más intensamente que los anfibios. Se comparan los resultados de la nueva evaluación con la... |
| Tipo: Journal article |
Palavras-chave: Estado de conservación; Amenazas; Anfibios; Reptiles; Argentina. |
| Ano: 2003 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382003000100012 |
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| Viana, Diego Carvalho; Santos, Amilton Cesar dos; Chaves, Lianne Fernandes Araujo; Oliveira, Antonia Santos; Assís Neto, Antônio Chaves de; Sousa, Alana Lislea de. |
| The reptile Kinosternon scorpioides is a freshwater chelonian, popularly known as jurará, and is found in the Baixada Maranhense, Maranhão State, Brazil. Due to the lack of scientific information on the reproductive biology of the species, current paper describes the body and testicular biometry and the gonad-somatic index (GSI) in adult specimens collected from the natural environment. Twenty male adults were collected in the rainy (n = 10) and dry (n = 10) seasons. Data were derived from the body, testis size and GSI and tests of correlation between these measures were performed. The body biometrics of free-living Kinosternon scorpioides is similar to those found in other studies for adult animals bred in captivity. The body weight was higher in animals... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 2.00.00.00-6 chelonian; Gonad-somatic index; Kinosternon; Reptiles; Testicular morphometric Ciências Biológicas. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/22824 |
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| Loa Loza, Eleazar. |
| Para determinar la concentración de DDT y sus metabolitos en ejemplares de cocodrilos (Crocodylus acutus y C. moreletii), durante el período de junio a diciembre de 2004 se tomaron 80 muestras de sangre en 37 localidades de 13 estados de la zona costera de México. En algunos de estos sitios, ha sido aplicado el DDT para el control del vector del paludismo. Las muestras fueron procesadas en el laboratorio mediante cromatografía de gases con detector de captura de electrones. Se realizó un análisis de regresión lineal simple entre la longitud y el peso de los cocodrilos. Para comparar las concentraciones de DDT en sangre en función de la longitud y peso de los cocodrilos en las provincias biogeográficas, se realizó el análisis de varianza utilizando un... |
| Tipo: Tesis |
Palavras-chave: Reptiles; Crocodylus acutus; C. moreletii; DDT; Pesticidas; Contaminación; Maestría; Ganadería; Reptiles; Pesticide; Pollution. |
| Ano: 2007 |
URL: http://hdl.handle.net/10521/1565 |
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| Freire,B.C.; Garcia,V.C.; Quadrini,A.E.; Bentubo,H.D.L.. |
| ABSTRACT Boids are large, constrictor snakes that feed mostly on mammals, reptiles, and birds. These animals are commonly raised as pets, and their improper handling can favor the emergence of fungal infections, which can lead to dermatological diseases that are undiagnosed in nature. Here, we isolate and identify the filamentous fungi that compose the mycobiota of the scales of boid snakes kept in captivity at the Biological Museum of the Butantan Institute. Thirty individuals of four species were evaluated: four Eunectes murinus, twelve Boa constrictor constrictor, seven Corallus hortulanus, and seven Epicrates crassus. Microbiological samples were collected by rubbing small square carpets on the snake scales. We isolated five genera of fungi:... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microbiology; Filamentous; Fungi; Reptiles. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000401093 |
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| MACHADO-FILHO,Paulo Roberto; MOYA,Guilherme Marson; MAFFEI,Fábio. |
| ABSTRACT Death-feigning behaviour occurs when the animal simulates a state of immobility. This behaviour is described for some lizard families, among them the family Gymnophthalmidae with only one record. Iphisa elegans is a diurnal and terrestrial Amazonian gymnophtalmid lizard. It has cryptic behavior and moves rapidly on the ground, hindering observations of its behavior. We report a case at the Comodoro Municipality, Mato Grosso State, Brazil. An adult male of I. elegans, when manipulated, turned its venter up and put itself in a death-feigning posture. This species is preyed upon by birds, snakes and other lizards¸ possibly behaving this way when the cryptic behaviour or escape attempt fails. More studies are necessary to evaluate the efficiency of... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Reptiles; Ethology; Antipredator display; Lizard; Thanatosis. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000200151 |
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| Alibardi, L.. |
| The development of claws in different reptiles and their cornification are analyzed using histological, ultrastructural and autoradiographic methods. Claws develop at the tip of digits in relation to the growth of the terminal phalanx and appear as modified scales. The apical epidermis of digit becomes thickened and is associated with a mesenchymal condensation or a dense mesenchyme. The dorsal side of the digit becomes the unguis while the ventral side becomes the sub-unguis. The corneous layer in the unguis is thicker than in the sub-unguis and accumulates hard-keratin while corneocytes remain separated or partially fused. Bundles of hard-keratin tend to accumulate in parallel orientation with respect to the surface and are directed toward the claw tip.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Autoradiography; Claws; Cornification; Histogenesis; Reptiles; Ultrastructure; 42.82. |
| Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/304588 |
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| AGUILAR-MORENO,MAGDALENA; RODRÍGUEZ-ROMERO,FELIPE DE J; ARAGÓN-MARTÍNEZ,ANDRÉS; MUÑOZ-MANZANO,JOSÉ A; GRANADOS-GONZÁLEZ,GISELA; HERNÁNDEZ-GALLEGOS,OSWALDO. |
| El dimorfismo sexual es una característica extendida en lacertilios y se relaciona con la adecuación de los individuos. En este estudio se analizó si Aspidoscelis costata costata (Squamata) presenta dimorfismo sexual al sur del Estado de México, México, especialmente en relación a su forma corporal altamente conservada dentro de la familia Teiidae. La población estudiada habita a 1500 msnm. Se utilizaron individuos adultos que fueron capturados y liberados durante estudios ecológicos. Para cada individuo se registró la longitud hocico-cloaca, el peso corporal, largo de la cabeza, ancho de la cabeza, alto de la cabeza, longitud del fémur y distancia interaxilar. Los análisis realizados indicaron que los machos fueron más grandes en longitud hocico-cloaca y... |
| Tipo: Journal article |
Palavras-chave: Reptiles; Selección por fecundidad; Selección sexual. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2010000400011 |
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| Santos,Mauricio Beux dos; Oliveira,Mauro Cesar Lamim Martins de; Gonçalves,Tatiane Penteado; Almeida,Francis de Mattos; Loebmann,Daniel; Tozetti,Alexandro Marques. |
| The loss and modification of habitats by humans have been considered key factors in the decline of diversity of species worldwide. However, the real effect caused by these disturbances on the biota is still poorly understood. The assessment of the changes in the network of interspecific interactions, such as predation rates on the native fauna, can be an important tool to diagnose the functionality of disturbed ecosystems. In this study we evaluate the predation rate on snakes in coastal grasslands in South America under human influence. Predation rate of artificial snakes, unlike that obtained in other studies, was lower in human-altered areas than preserved ones. Our findings may be due to a reduction in the abundance and/or richness of species of native... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Reptiles; Coastal dunes; Human impact; Predation; Brazil. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000100039 |
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| Dell'Aglio,Denise Dalbosco; Toma,Tiago Shizen Pacheco; Muelbert,Adriane Esquivel; Sacco,Anne Gomes; Tozetti,Alexandro Marques. |
| Anti-predator mechanisms in snakes are diverse and complex, including mimetic behavior. Some snakes triangulate their head, probably mimicking other more dangerous snakes. However, there is a lack of studies that demonstrate the effectiveness of this behavior with natural predators. The aim of this study was to verify, using artificial snakes, if snakes with triangular heads are less susceptible to attack by predators, and if predatory attack is targeted to the head of serpents. Artificial snakes were systematically arranged on a road border. The rate of attacked models was 48.71%. Number of attacks on models with rounded head was significantly higher than in models with triangular head. There was a significant difference between the places of attack on... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Artificial models; Defensive behavior; Mimicry; Predation rate; Reptiles. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000300031 |
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| Breves,P.; Porto,M.; Pissinatti,A.; Luz,D.; Menezes,R.C.. |
| The results of a study on nematode fauna occurring in wild iguanas (Iguana iguana) from Brazilian Northeast (Alagoas and Maranhão) and Central-west (Goiás and Mato Grosso) areas were presented. Six adult iguanas, three males and three females, were necropsied and the digestive system removed to examination. All the iguana specimens were heavily parasitized. The helminths diagnosed were: Ozolaimus cirratus in the cecum and colon of five iguanas; Ozolaimus megatyphlon in cecum, colon and rectum of three iguanas; and Alaeuris vogelsangi in the small intestine, cecum, colon and rectum of five animals. Two larvae of Ozolaimus sp. were recovered from the pyloric region of the stomach of one iguana. The three diagnosed species of nematodes were reported for the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Iguana iguana; Digestory sistem; Nematodes; Reptiles. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000600040 |
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| Ramalho,Werther Pereira; França,Daniella Pereira Fagundes; Guerra,Vinicius; Marciano,Rosy; Vale,Nilton Carlos do; Silva,Hélder Lúcio Rodrigues. |
| ABSTRACT Studies in remnants of semi-deciduous seasonal forest of the Cerrado are needed to fill sampling gaps and improve basic knowledge of biodiversity. This study presents data on the herpetofauna of Parque Estadual Altamiro de Moura Pacheco, one of the last protected areas of seasonal forest in the core region of the Brazilian Cerrado. Fourteen sites were sampled between March 2007 and April 2008 using pitfall traps and active searches. A total of 35 anuran species were recorded, most of which were found in hygrophilous environments near forest fragments, open areas and riparian or gallery forest. A total of 29 reptile species were recorded, most of which were found in semi-deciduous forest and riparian or gallery forest. Fourteen of the amphibians... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Semi-deciduous forest; Protected area; Mato Grosso de Goiás; Amphibians; Reptiles. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492018000100249 |
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| Pedrosa,Isabella Mayara Monteiro de Carvalho; Costa,Taís Borges; Faria,Renato Gomes; França,Frederico Gustavo Rodrigues; Laranjeiras,Daniel Orsi; Oliveira,Thiago César Sena Pereira de; Palmeira,Cristiane Nikely Silva; Torquato,Selma; Mott,Tami; Vieira,Gustavo Henrique Calazans; Garda,Adrian Antonio. |
| Despite the increase in herpetofaunal inventories in the Caatinga biome, information for many areas is still lacking and new surveys are required. We conducted a 30-day inventory of the herpetofauna of the Catimbau National Park, Pernambuco State, Brazil. Thirty-seven pitfall trap arrays composed of 4 buckets each, along with glue traps and active searches were used to sample local herpetofaunal diversity. We recorded 21 species of frogs, 25 lizards, 11 snakes, and 1 chelonian. All sampling methods contributed significantly to achieve the amphibian and reptile diversity recovered in the inventory. Rarefaction curves and richness estimators suggest that local biodiversity is still underestimated. We attempted to show the great potential of Catimbau National... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibians; Reptiles; Inventory; Northeast Brazil. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000400203 |
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| Almeida-Gomes,Mauricio; Siqueira,Carla Costa; Borges-Júnior,Vitor Nelson Teixeira; Vrcibradic,Davor; Ardenghi Fusinatto,Luciana; Frederico Duarte Rocha,Carlos. |
| Species inventories are useful tools to improve conservation strategies, especially in highly threatened biomes such as the Brazilian Atlantic Forest. Here we present a species list of amphibians and reptiles for the Reserva Ecológica de Guapiaçu (REGUA), a forest reserve located in the central portion of Rio de Janeiro state, Brazil. The list results from an extensive sampling effort that lasted ten years. A total of 73 amphibian (of which ten are endemic to the state) and 37 reptile species was recorded from the area. Five amphibian species are presently categorized by the IUCN as “data-deficient”, two as “near threatened” and one as “endangered”, whereas one reptile species is categorized as “vulnerable”. Our results showed that REGUA harbors about... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibians; Atlantic Forest; Conservation; Hotspot; Reptiles. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000300201 |
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| Machado-Santos,Clarice; Santana,Lailah N. de S.; Vargas,Rosilene F.; Abidu-Figueiredo,Marcelo; Brito-Gitirana,Lycia de; Chagas,Maurício A.. |
| ABSTRACT The purpose of this study was to examine the ovaries and the oviduct of juvenile females of the broad-snouted caiman, Caiman latirostris (Daudin, 1802), using light microscopy, histochemical and immunocytochemical techniques. The ovarian cortex was observed to contain groups of germinative cells and abundant previtellogenic follicles at different stages of development. In previtellogenic follicles, the oocyte was surrounded by a single cuboidal layer of granulosa cells, supported by the theca layer. The theca was formed by a concentric layer containing collage nous fibers, predominantly type I, and several smooth muscle fibers. The inner perivitelline layer appeared as a narrow basophilic region between the oocyte and the granulosa. The ovarian... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Female reproductive system; Morphology; Reptiles. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000500395 |
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| Machado-Santos, Clarice; Universidade Federal da Bahia.; Teixeira, Monalisa Jales; Médica Veterinária Autônoma; Sales, Armando; Universidade Federal Rural do Rio de Janeiro; Abidu-Figueiredo, Marcelo; Universidade Federal Rural do Rio de Janeiro. |
| The broad-snouted caiman, Caiman latirostris, is widely distributed in countries of South America. In Brazil it is considered an endangered species because of natural habitat destruction and illegal hunting. In reptiles, the thyroid gland plays an integral part in ecdysis, reproduction, tail regeneration, growth, endocrine function and metabolism rate. The aim of the present study was to characterize the thyroid gland morphology of C. latirostris, based on histochemical and immunohistochemical techniques. The thyroid glands were fixed in Bouin's fluid and serial cross sections were stained with hematoxylin-eosin, Mallory’s trichrome, periodic acid-Schiff (PAS) and Alcian blue (AB pH 1.5 and 2.5). The immunohistochemical technique for 5-HT-IR cells was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ciências biológicas Thyroid; Histology; Reptiles; 5-HT Histologia. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/18444 |
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| Ribeiro-Júnior,Marco A; Rossi,Rogério V; Miranda,Cleuton L; Ávila-Pires,Teresa C. S. |
| One of the most commonly used sampling techniques to capture leaf litter amphibians, lizards and small mammals is a set of pitfall traps with drift fences. However, there are still many speculations concerning the effectiveness of different designs of pitfall traps and the most adequate size of each trap. To address this problem, we conducted the first standardized comparison of patterns of species richness, rank-abundance, and community structure of leaf litter amphibians, lizards and small mammals for two trap designs (I and Y format) and three bucket sizes (35, 62, and 100 L) in a Neotropical forest. Results are very similar for the herpetofauna, regardless of the pitfall trap design or size used, while for small mammals values of species richness were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibians; Faunal survey; Neotropical forest; Reptiles; Sampling method; Small mammals. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000100012 |
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| Registros recuperados: 34 | |
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