Consulta: creatorFacets:"Zaher,Hussam"
Registros recuperados: 13
Data/hora: 01/06/2024 04:33:37

A new species of Baurusuchus (Crocodyliformes, Mesoeucrocodylia) from the Upper Cretaceous of Brazil, with the first complete postcranial skeleton described for the family Baurusuchidae
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Nascimento,Paulo Miranda; Zaher,Hussam.
The present work describes a new species of Baurusuchidae from Upper Cretaceous sediments of the Bauru Basin, and provides the first complete postcranial description for the family. Many postcranial features observed in the new species are also present in other notosuchian taxa, and are thus considered plesiomorphic for the genus. These are: long cervical neural spines; robust deltopectoral crest of the humerus; large proximal portion in the radiale that contacts the ulna; ulnare anterior distal projection; supra-acetabular crest well developed laterally; post-acetabular process posterodorsally deflected; presence of an anteromedial crest in the femur; fourth trocanter of femur posteriorly positioned; tibia with a laterally curved shaft; calcaneum tuber...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Upper Cretaceous; Baurusuchidae; Baurusuchus; Morphology; Postcranium.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492010002100001

Taxonomic identification of the Megaloolithid egg and eggshells from the Cretaceous Bauru Basin (Minas Gerais, Brazil): comparison with the Auca Mahuevo (Argentina) titanosaurid eggs
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Grellet-Tinner,Gerald; Zaher,Hussam.
The taxonomically (titanosaurid) identified eggs and eggshells of Auca Mahuevo (Patagonia, Argentina) provide an opportunity to compare and identify orphan megaloolithid eggs found elsewhere. Previous investigation determined that the oological material from Neuquén (Megaloolithus patagonicus) and Peru (M. pseudomamillare) are related to titanosaurid dinosaurs. Examination of an egg and several (megaloolithid) eggshell fragments from the Upper Cretaceous Marilia Formation strongly suggests, as oological characters are at least genus specific, that the same group of titanosaur dinosaurs, which lived in the Neuquén Basin during the Late Campanian, were also present and reproducing in the Cretaceous Bauru Basin (Brazil). Furthermore, it has been suggested...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Titanosaurid eggs; Bauru Basin; Auca Mahuevo; Eggshell structure; Dinosaur paleobiology.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492007000700001

Redescription of Atractus albuquerquei (Serpentes: Colubridae: Dipsadinae), with comments on geographical distribution and intraspecific variation
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Zaher,Hussam; Souza,Ivan; Gower,David J.; Hingst-Zaher,Erika; Silva Jr,Nelson Jorge da.
Atractus albuquerquei Cunha and Nascimento, 1983 was previously known from a holotype from eastern Pará, and 15 specimens from Rondônia and Acre, all in Brazil. We report on 23 additional specimens from the Brazilian states of Rondônia, Goiás, Mato Grosso, and Mato Grosso do Sul. These specimens extend the known range of A. albuquerquei substantially, and beyond the southern limits of the Amazon basin. The holotype of A. albuquerquei is redescribed and intraspecific variation in external morphology, hemipenes, and colour is documented. Sexual dimorphism exists in total length, and number of ventral (significantly greater in females) and subcaudal scales (greater in males). There is a significant correlation between number of subcaudal scales and longitude...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Serpentes; Dipsadinae; Atractus albuquerquei; Variation; Distribution.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492005000200001

Phylogenetic relationships of the genus Sibynophis (Serpentes: Colubroidea)
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Zaher,Hussam; Grazziotin,Felipe G.; Graboski,Roberta; Fuentes,Ricardo G.; Sánchez-Martinez,Paola; Montingelli,Giovanna G.; Zhang,Ya-Ping; Murphy,Robert W.
We present the results of the first molecular analysis of the phylogenetic affinities of the Asian colubroid genus Sibynophis. We recovered a sister-group relationship between Sibynophis and the New World Scaphiodontophis. Although Liophidium sometimes is associated with these genera, the relationship is distant. Morphological characters that Liophidium shares with Sibynophis and Scaphiodontophis are resolved as homoplasies that probably reflect the similarities of their specialized feeding habits. The traditional subfamily Sibynophiinae is elevated to the family-level, and Scaphiodontophiinae is placed in its synonymy.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sibynophiidae; Sibynophis; Scaphiodontophis; Phylogeny.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492012001200001

A new species of Mesoclemmys, from the open formations of northeastern Brazil (Chelonii, Chelidae)
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Bour,Roger; Zaher,Hussam.
A new species of South American side-necked turtle is described from the state of Piauí, Brazil. It is related to the Amazonian species of the genus Mesoclemmys s.l. (new acceptation) and is apparently a biogeographically relictual population of a species formerly living under a more humid climate in northeastern Brazil.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chelonii; Chelidae; Systematics; Taxonomy; Phylogeny; Mesoclemmys perplexa; New species; Piauí; Brazil.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492005002400001

The herpetofauna of the Estação Ecológica de Uruçuí-Una, state of Piauí, Brazil
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Dal Vechio,Francisco; Recoder,Renato; Rodrigues,Miguel Trefaut; Zaher,Hussam.
This work was carried out with the main objective of sampling the herpetofauna of a Cerrado site in the state of Piauí, Brazil, that is influenced by neighboring biomes and one of the least known regions of the domain. The herpetofauna of the different habitats present at Estação Ecológica de Uruçuí-Una (EEUU) was sampled intensively during three campaigns (two during the wet season and one during the dry season). We recorded 90 species, 64 reptiles and 26 anurans, a high local richness when compared to other well-sampled localities of the Cerrado. The rarefaction curve for both anurans and lizards shows that the observed richness is close to real and the richness estimators indicate that undetected species should be added with higher sampling effort....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Reptiles; Anurans; Cerrado of Piauí; Conservation.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492013001600001

Molecular phylogeny of advanced snakes (Serpentes, Caenophidia) with an emphasis on South American Xenodontines: a revised classification and descriptions of new taxa
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Zaher,Hussam; Grazziotin,Felipe Gobbi; Cadle,John E.; Murphy,Robert W.; Moura-Leite,Julio Cesar de; Bonatto,Sandro L.
We present a molecular phylogenetic analysis of caenophidian (advanced) snakes using sequences from two mitochondrial genes (12S and 16S rRNA) and one nuclear (c-mos) gene (1681 total base pairs), and with 131 terminal taxa sampled from throughout all major caenophidian lineages but focussing on Neotropical xenodontines. Direct optimization parsimony analysis resulted in a well-resolved phylogenetic tree, which corroborates some clades identified in previous analyses and suggests new hypotheses for the composition and relationships of others. The major salient points of our analysis are: (1) placement of Acrochordus, Xenodermatids, and Pareatids as successive outgroups to all remaining caenophidians (including viperids, elapids, atractaspidids, and all...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Serpentes; Colubridae; Caenophidia; Phylogeny; Classification; Systematics; Xenodontinae; Dipsadinae; New genus; Elapoidea; Colubroidea; South America; West Indies.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492009001100001

Natural history of Micrablepharus maximiliani (Squamata: Gymnophthalmidae) in a Cerrado region of northeastern Brazil
Provedor de dados: Revista Brasileira de Zoologia
Autores: Dal Vechio,Francisco; Recoder,Renato; Zaher,Hussam; Rodrigues,Miguel Trefaut.
Micrablepharus maximiliani (Reinhardt &amp;amp; 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

Pitfalls of artificial grouping and stratification of scientific journals based on their Impact Factor: a case study in Brazilian Zoology
Provedor de dados: Revista Brasileira de Zoologia
Autores: Machado,Fábio A.; Zaher,Hussam.
The present contribution explores the impact of the QUALIS metric system for academic evaluation implemented by CAPES (Coordination for the Development of Personnel in Higher Education) upon Brazilian Zoological research. The QUALIS system is based on the grouping and ranking of scientific journals according to their Impact Factor (IF). We examined two main points implied by this system, namely: 1) its reliability as a guideline for authors; 2) if Zoology possesses the same publication profile as Botany and Oceanography, three fields of knowledge grouped by CAPES under the subarea "BOZ" for purposes of evaluation. Additionally, we tested CAPES' recent suggestion that the area of Ecology would represent a fourth field of research compatible with the former...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: CAPES; IF; JIF; QUALIS; Scientometry.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000400002

Herpetofauna of Paranapiacaba: expanding our knowledge on a historical region in the Atlantic forest of southeastern Brazil
Provedor de dados: Revista Brasileira de Zoologia
Autores: Trevine,Vivian; Forlani,Maurício C.; Haddad,Célio F. B.; Zaher,Hussam.
The largest area of preserved Atlantic forest is located in the southern portion of Brazil. The region of Paranapiacaba is depicted in Brazilian zoological studies as one of the first and most intensely sampled areas of the state of São Paulo.We provide a concise list of reptiles and amphibians from the Paranapiacaba Municipal Park. It represents the first comprehensive survey of the group in the area. We recorded 136 species of reptiles and amphibians from field surveys, museum collections and the literature. The anuran diversity of Paranapiacaba is greater than that of Estação Ecológica de Boracéia, which has been considered the most distinctive areas in São Paulo in terms of amphibian diversity. The rich history of herpetological research in the region,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anuran conservation; Conservation unit; Herpetofaunal diversity; Historical records; São Paulo state.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000200004

Herpetofauna do Parque Estadual Carlos Botelho, São Paulo, Brasil
Provedor de dados: Biota Neotropica
Autores: Forlani,Maurício da Cruz; Bernardo,Pedro Henrique; Haddad,Celio Fenando Baptista; Zaher,Hussam.
O presente trabalho consiste em um inventário da herpetofauna do Parque Estadual Carlos Botelho (PECB), localizado na região da Serra de Paranapiacaba, Estado de São Paulo. Os dados foram obtidos por meio de coletas em seis áreas dentro do PECB durante um período de 76 dias distribuídos em um ano, e também por meio de consulta a coleções científicas para obtenção de dados secundários. São apresentados resultados sobre a biologia e ocorrência das espécies no PECB e no Brasil, além de fotografias das diferentes espécies que compõem a herpetofauna do PECB. A herpetofauna do PECB pode ser considerada uma das mais diversificadas de São Paulo, com 65 espécies de anfíbios confirmadas e 59 espécies de répteis registrados neste trabalho. Das 65 espécies de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anfíbios; Répteis; Herpetofauna; Diversidade; Mata Atlântica; Parque Estadual Carlos Botelho.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000300028

The herpetofauna of Parque Nacional da Serra das Confusões, state of Piauí, Brazil, with a regional species list from an ecotonal area of Cerrado and Caatinga
Provedor de dados: Biota Neotropica
Autores: Dal Vechio,Francisco; Teixeira Jr.,Mauro; Recoder,Renato Sousa; Rodrigues,Miguel Trefault; Zaher,Hussam.
Abstract Different physiognomies at Parque Nacional da Serra das Confusões (PNSCo) were intensively sampled aiming to access the distribution pattern of its herpetofauna. Sixty six species were found in the park (47 reptiles and 19 amphibians); the rarefaction curve for lizards, although not fully stabilized in an asymptote, indicates that the sampling effort was enough to reveal most lizard species occurring in the area; and richness estimators recovered values close to observed. For amphibians, the curve shows a weak tendency to stabilization with richness estimators indicating that additional records could be done. Field work carried out at PNSCo has highlighted an unique herpetofauna: five new species were described and there are three candidates as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Reptiles; Amphibians; Herpetofaunal Inventory; Herpetofaunistic similarities.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000300301

Répteis do Estado de São Paulo: conhecimento atual e perspectivas
Provedor de dados: Biota Neotropica
Autores: Zaher,Hussam; Barbo,Fausto Erritto; Martínez,Paola Sanchez; Nogueira,Cristiano; Rodrigues,Miguel Trefaut; Sawaya,Ricardo Jannini.
Elaboramos uma lista das espécies de répteis do Estado de São Paulo com base nos registros confirmados de exemplares depositados nas três maiores coleções científicas do estado, complementando esta informação com a bibliografia disponível. Registramos a presença de 212 espécies de répteis no Estado de São Paulo, distribuídas em 23 famílias, incluindo 12 quelônios, três crocodilianos e 197 Squamata (142 serpentes, 44 "lagartos" e 11 anfisbenas). Destas, onze são endêmicas do Estado de São Paulo (Mesoclemmys cf. vanderhaegei, Amphisbaena sanctaeritae, Mabuya caissara, Mabuya macrorhyncha, Liotyphlops caissara, Liotyphlops schubarti, Corallus cropanii, Atractus serranus, Phalotris lativittatus, Bothropoides alcatraz, Bothropoides insularis). Entre os...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Répteis; Biodiversidade; Estado de São Paulo; Programa BIOTA/FAPESP.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032011000500005