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| Registros recuperados: 31 | |
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| Clozato,Camila L.; Miranda,Flávia R.; Lara-Ruiz,Paula; Collevatti,Rosane G.; Santos,Fabrício R.. |
| Abstract The giant anteater (Myrmecophaga tridactyla, Pilosa, Linnaeus 1758) belongs to the mammalian order Pilosa and presents a large distribution along South America, occupying a great variety of habitats. It is listed in the IUCN Red List of threatened species as Vulnerable. Despite threatened, there is a lack of studies regarding its genetic variability. The aim of this study was to examine the genetic diversity and patterns of genetic structure within remaining populations. We analyzed 77 individuals from seven different populations distributed in four biomes across Brazil: Cerrado, Pantanal, Atlantic Forest and Amazon Forest. We sequenced two mitochondrial markers (control region and Cyt-b) and two nuclear markers (AMELY and RAG2). We found high... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Giant Anteater; Xenarthra; Cerrado; Genetic diversity; Population structure. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000100050 |
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| Coimbra,Raphael Teodoro Franciscani; Miranda,Flávia Regina; Lara,Camila Clozato; Schetino,Marco Antônio Alves; Santos,Fabrício Rodrigues dos. |
| Abstract Cyclopes didactylus, commonly called silky anteater, is the smallest and least studied of the anteaters. It is an arboreal species occurring in rainforests, ranging from southern Mexico to Central and South America, with an apparently disjoint distribution between Amazon and Atlantic rainforests in Brazil. Although seven subspecies are recognized, little is known about its geographical variation. Thus, to evaluate the population dynamics and evolutionary history of the South American silky anteater, we analyzed 1542 bp sequences of the mitochondrial control region (CR), COI and Cyt-b genes of 32 individuals. Haplotype network, AMOVA and molecular dating analyses were performed and identified seven geographic clusters. The split of lineages... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Xenarthra; Mitochondrial DNA; Population structure; Molecular dating; South America. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000100040 |
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| Oliveira,Stefan V. de; Corrêa,Luiz L. C.; Peters,Felipe B.; Mazim,Fábio D.; Garcias,Felipe M.; Santos,Janduhy P. dos; Kasper,Carlos B.. |
| ABSTRACT Cabossous tatouay Desmarest, 1804 is considered a rare species in southern South America, and Rio Grande do Sul State, Brazil, records of the species are scarce and inaccurate. This study reports 40 localities for C. tatouay, and provides a map of the species' potential distribution using ecological niche modeling (ENM). The ENM indicated that in this region C. tatouay is associated with open grasslands, including the areas of "Pampas" and the open fields in the highlands of the Atlantic Forest. This study contributes to the information about the greater naked-tailed armadillo in southern Brazil, and provides data key to its future conservation. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Xenarthra; Ecological niche; Greater naked-tailed armadillo. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212015000200235 |
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| Codón,Stella Maris; Casanave,Emma Beatriz. |
| The morphological features of the oviduct in the armadillo Chaetophractus villosus (Desmarest, 1804) were studied. In the simple columnar epithelium, ciliated cells, secretory cells, and cells of the bottom of the folds are described. The most remarkable findings are the increase in number of ciliated cells, when present, from the fimbriae to the uterus, being the isthmus practically lined by ciliated cells, and that secretory cells are more abundant in the apical zone of the ampulla and fimbriae, than in the isthmus. Morphological changes along the year in the different portions are described. |
| Tipo: Journal article |
Palavras-chave: Xenarthra; Armadillo; Chaetophractus villosus; Morphology; Oviduct. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200009 |
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| Ciuccio,M; Estecondo,S; Casanave,E. B. |
| The dorsal surface of the tongue of Zaedyus pichiy (Desmarest, 1804) was examined by scanning electron microscopy. Conical and branched filiform, fungiform and vallate papillae are described. No foliate papillae were seen. Conical filiform papillae are distributed in the apex, both lateral edges and caudally to the vallated ones. The branched papillae represent the most numerous type of lingual papillae; they are distributed over the entire dorsal surface of the tongue. The fungiform papillae are placed among the filiform ones, more densely distributed on the tip of the lingual apex. In the posterior third of the tongue there are two vallated papillae surrounded by a deep circular grove. Fungiform and circumvallate papillae are related to the sense of... |
| Tipo: Journal article |
Palavras-chave: Mammals; Xenarthra; Dasypodidae; Armadillo; Tongue; Lingual Papillae; SEM. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000100002 |
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| Ciuccio,M; Estecondo,S; Casanave,E. B. |
| The dorsum of the tongue of Dasypus hybridus (Desmarest, 1804) studied by scanning electron microscopy, shows conical and branched filiform, fungiform and vallate papillae. No foliate papillae were seen. Conical filiform papillae are placed in the apex of the tongue and posterior to the vallated ones. Branched papillae are compactly distributed over the entire dorsal surface of the tongue. Fungiform papillae are more abundant on the first third of the tongue and they are distributed between filiform papillae. Only two vallate papillae were observed placed in the posterior third of the tongue, surrounded by a deep grove. The presence of taste buds on fungiform and vallate papillae indicate that both are involved in the sense of taste, while the filiform... |
| Tipo: Journal article |
Palavras-chave: Mammals; Xenarthra; Dasypodidae; Armadillo; Tongue; Lingual papillae; SEM. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000200007 |
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| Galíndez,Elena Juana; Estecondo,Silvia; Casanave,Emma B.. |
| The spleen is a multifunctional organ. Its microarchitecture reflects so well the phylogeny as the adaptation to niche in each animal group and inclusive in each species. Armadillos, as ancient and isolated mammals, show a mixture of ancestral and modern structures. In this work the microanatomy and cytology of the spleen of the little hairy armadillo Chaetophractus vellerosus was studied. The material was fixed and processed according to the typical methods for light and electron microscopy. Results show a cumulative medium sized spleen with the typical pulps. The white pulp is well developed but less defined than in other armadillos. The presence of follicular-dendritic-like cells and interdigitant dendritic-like cells, as well as clusters of... |
| Tipo: Journal article |
Palavras-chave: Xenarthra; Dasypodidae; Spleen; Chaetophractus vellerosus. |
| Ano: 2006 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000400008 |
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| Rezende,L. C; Monteiro,J. M; Carvalho,P; Ferreira,J. R; Miglino,M. A. |
| The macroscopic anatomy and vascularization of the stomach compartments of Bradypus torquatus were examined in five animals from the University of São Paulo College of Veterinary Medicine and Zootechny collection. The method included aqueous perfusion of the arterial network, colored latex injection, fixation in formaldehyde (10%) and preservation in Laskovisk solution. Dissections were performed under mesoscopic light and photo documentations were performed for description and data analysis. In these animals, the largest abdominal organ was the stomach, which internally presented the cardiac, fundic and prepyloric regions, subdivided in six compartments (cardiac right, middle and left; fundic; pre-pyloric I and II). The stomach was irrigated by the left... |
| Tipo: Journal article |
Palavras-chave: Digestive tract; Stomach; Celiac artery; Bradypodidae; Xenarthra. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000400035 |
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| Forasiepi,Analía M.; Martinelli,Agustín G.; Zurita,Alfredo E.; Ponce,Hernán. |
| Poco se conoce aún sobre la fauna del Pleistoceno de la provincia de Mendoza en relación a otras regiones de la Argentina. Los géneros previamente reconocidos son: Megatherium, Mylodon, Glossotherium, Macrauchenia, Paleolama, Hippidion y Equus. En esta nota comunicamos los primeros restos de Glyptodon sp. (Xenarthra, Cingulata, Glyptodontidae), los que fueron hallados en la margen oeste del río Tunuyán, Departamento de Tupungato, en sedimentitas de la Formación El Zampal. Este espécimen de Glyptodon representa el registro más occidental para la Argentina. |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Glyptodon; Mendoza; Pleistoceno; Xenarthra. |
| Ano: 2009 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832009000100019 |
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| Attias,Nina; Miranda,Flávia R.; Sena,Liana M.M.; Tomas,Walfrido M.; Mourão,Guilherme M.. |
| ABSTRACT It is believed that the two species of Tolypeutes Illiger, 1811are the only armadillos that do not dig their own burrows, and that these species simply re-use burrows dug by other species. Here, we show that Tolypeutes matacus (Desmarest, 1804) and Tolypeutes tricinctus (Linnaeus, 1758) dig their own burrows. We describe the burrows and three other types of shelters used by them, and provide measurements and frequency of use of the different types of shelter. We have studied free-ranging individuals of T. matacus in two locations in Central Brazil and individuals of T. tricinctus in semi-captivity in the Northeast of Brazil. Individuals of T. matacus were found primarily in small burrows (76%), straw nests (13%), shallow depressions covered with... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Digging behavior; Ecology; Xenarthra. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702016000404001 |
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| Srbek-Araujo,Ana Carolina; Scoss,Leandro M.; Hirsch,André; Chiarello,Adriano G.. |
| We report 20 records of Priodontes maximus (Kerr, 1792) collected between 1990 and 2009 in three nature reserves located in forested areas of southeastern Brazil within the Atlantic Forest biome. Seventeen records were collected in Parque Estadual do Rio Doce (PERD), state of Minas Gerais, two in Reserva Biológica de Sooretama and one in Reserva Natural Vale, both located in the state of Espírito Santo. The records were burrows (n = 11), photographs from camera-traps (n = 6), sightings (n = 2) and carcass (n = 1). Given the higher number of records, the PERD seems to maintain the largest population among the three study areas. We searched the literature and found no other recent evidence of the species' presence in the Atlantic forest of Brazil. There are... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Endangered species; Extinction; Forest fragmentation; Xenarthra. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000300010 |
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| Guilherme Trovati,Roberto. |
| BACKGROUND: Signs left by some mammals such as tracks, trails, burrows, scratches, feces, hair, and others can be an important tool for species identification. This study was conducted in the Itirapina Ecological Station, in the southern Brazilian Cerrado, whose main objectives were to (1) compare the burrow morphometric variables of Cabassous unicinctus and Euphractus sexcinctus and (2) check for differences in the occurrence of foraging burrows in two different environments: areas with vegetation (shrubby grassland) and areas without vegetation (roads). The collected measures of armadillo's burrows have been width, height, depth, and angle relative to the soil. To record foraging burrows (<70 cm), the linear transect methodology was used... |
| Tipo: Journal article |
Palavras-chave: Burrows; Cabassous unicinctus; Cingulata; Dasypodidae; Euphractus sexcinctus; Xenarthra. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2015000100019 |
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| ARAUJO,M. SOLEDAD; CIUCCIO,MARIANO; CAZON,ADA V; CASANAVE,EMMA B. |
| The analysis of feces is a fundamental tool for field work, especially to identify the presence of certain species in an area. Fecal bile acids and their relative concentration follow patterns that are species-specific, and can be characterized by Thin Layer Chromatography (TLC). This technique has been used for differentiating feces of several mammal species; however it has never been used for Xenarthra species. In this work, 96 feces of Xenarthra species were analyzed by TLC to determine the bile acid pattern. The species were: Zaedyus pichiy (n = 10), Chaetophractus vellerosus (n = 5), Chaetophractus villosus (n = 57), Dasypus kybridus (n = 4), Priodontes maximus (n = 2), Tamanduá tetradactyla (n = 14) and Myrmecophaga tridactyla (n = 4). There were... |
| Tipo: Journal article |
Palavras-chave: Conservation; Fecal bile acids; TLC; Xenarthra. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2010000400009 |
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| Registros recuperados: 31 | |
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