The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Gutierrez Mercedes - One of the best experts on this subject based on the ideXlab platform.
-
Comunicación química en la boa arco iris Epicrates cenchria alvarezi (Serpentes: boidae)
2010Co-Authors: Chiaraviglio De Torres, Margarita, Briguera Verónica, Gutierrez MercedesAbstract:In snakes there are two possible pheromonal sources: skin and cloacal glands. In this work, we tested both secretions in adults of Epicrates cenchria alvarezi as messages transmitters, trying to explain the role that plays this information in the social context of this species. Both secretions have shown to have pheromonal function. Conespecific odors elicited more tongue extrusions than other stimuli did. These results suggest that the snake is capable of discriminating conspecifics based on chemical cues alone.Asociación Herpetológica Argentina (AHA
-
Experiencias de seguimiento de rastros por los machos de boa arco iris Epicrates cenchria alvarezi (Serpentes: Boidae) mediado por mensajes químicos
Asociación Herpetológica Argentina, 1997Co-Authors: Briguera Verónica, Chiaraviglio Margarita, Gutierrez MercedesAbstract:En el presente trabajo probamos la habilidad de los machos de Epicrates cenchria alvarezi para encontrar y seguir señales químicas depositadas en el sustrato como rastros de olor y examinamos el posible origen de la huella química. Los machos parecen rastrear a las hembras si éstas tienen obstáculos en los que propulsarse y en donde dejar el rastro químico. Los resultados sugieren que la piel de las hembras es una fuente probable de las señales olorosas. In some species of snakes it has been demostrated the ability of males to found and follow chemical signals deposited over sustrate as odor trails. In this paper we tested this ability in males of Epicrates cenchria alvarezi and we also examined the possible source of the chemical signals. Males seem to follow better the trails if females have obstacles to propel herselfs and where to lie a chemical trail. Results suggest that the skin of females is the probable source of the chemical signals
-
Experiencias de seguimiento de rastros por los machos de boa arco iris Epicrates cenchria alvarezi (Serpentes: boidae) mediado por mensajes químicos
1997Co-Authors: Briguera Verónica, Chiaraviglio De Torres, Margarita, Gutierrez MercedesAbstract:En el presente trabajo probamos la habilidad de los machos de Epicrates cenchria alvarezi para encontrar y seguir señales químicas depositadas en el sustrato como rastros de olor y examinamos el posible origen de la huella química. Los machos parecen rastrear a las hembras si éstas tienen obstáculos en los que propulsarse y en donde dejar el rastro químico. Los resultados sugieren que la piel de las hembras es una fuente probable de las señales olorosas.Asociación Herpetológica Argentina (AHA
-
Comunicación química en la boa arco iris Epicrates cenchria alvarezi (Serpentes, Boidae)
Asociación Herpetológica Argentina, 1994Co-Authors: Briguera Verónica, Chiaraviglio Margarita, Gutierrez MercedesAbstract:In snakes there are two possible pheromonal sources: skin and cloacal glands. In this work, we tested both secretions in adults of Epicrates cenchria alvarezi as messages transmitters, trying to explain the role that plays this information in the social context of this species. Both secretions have shown to have pheromonal function. Conespecific odors elicited more tongue extrusions than other stimuli did. These results suggest that the snake is capable of discriminating conspecifics based on chemical cues alone
Gálvez C. Hugo. - One of the best experts on this subject based on the ideXlab platform.
-
PARÁSITOS HELMINTOS EN Boa constrictor, Epicrates cenchria y Corallus caninus (Ophidia: Boidae) CRIADAS EN CAUTIVERIO
Facultad de Medicina Veterinaria de la Universidad Nacional Mayor de San Marcos, 2013Co-Authors: Sánchez P. Nofre., Tantaleán V. Manuel., Richards G. Ryan., Gálvez C. Hugo.Abstract:Los boideos pertenecen a la familia Boidae, cuyos representantes más conocidos son las boas y los pitones. Estos reptiles no son venenosos, pero sí peligrosos por la cantidad de dientes que poseen y por su hábito constrictor. Las especies Boa constrictor (“Boa” o “Mantona”), Epicrates cenchria (“Mantona roja”o “Arco iris”) y Corallus caninus (“Boa verde” o “Boa esmeralda”) se crían en cautiverio con fines comerciales, orientadas a un mercado para mascotas. La zoocría de boideos es una actividad poco desarrollada en el país por lo que se conoce poco acerca de su estado sanitario; aunque los parásitos, principalmente intestinales, son reportados como casuística de mortalidad y morbilidad.Fecal samples for the identification of helminthes were collected from three species of snakes (Boa contrictor “boa” or “mantona”, Epicrates cenchria “mantona roja” or “arco iris”, Corallus caninus “boa verde” or “boa esmeralda”) reared in captivity. The identified parasites, either through eggs or larva were: Kalicephalus sp., Ophiotaenia sp., Rhabdias sp., Ophidascaris sp., and Hymenolepis diminuta. The results indicated that 79% of adult female Boa constrictor and 46% of their offspring, 71% of E. cenchria and 70% of C. caninus were positive, either to single or multiple infections. These data showed that boas reared in captivity were highly parasitized with intestinal and pulmonary helminthes
-
Parásitos helmintos en Boa constrictor, Epicrates cenchria y Corallus caninus (Ophidia: Boidae) criadas en cautiverio
Revista de Investigaciones Veterinarias del Perú, 2011Co-Authors: Sánchez P. Nofre., Tantaleán V. Manuel., Richards G. Ryan., Gálvez C. Hugo.Abstract:SÁNCHEZ P., Nofre [et al.]. Parásitos helmintos en Boa constrictor, Epicrates cenchria y Corallus caninus (Ophidia: Boidae) criadas en cautiverio. Revista de Investigaciones Veterinarias del Perú [en línea]. jul./dic. 2004, vol. 15, no. 2, p. 166-169. ISSN 1609-9117.Fecal samples for the identification of helminthes were collected from three species of snakes (Boa contrictor "boa" or "mantona", Epicrates cenchria "mantona roja" or "arco iris", Corallus caninus "boa verde" or "boa esmeralda") reared in captivity. The identified parasites, either through eggs or larva were: Kalicephalus sp., Ophiotaenia sp., Rhabdias sp., Ophidascaris sp., and Hymenolepis diminuta. The results indicated that 79% of adult female Boa constrictor and 46% of their offspring, 71% of E. cenchria and 70% of C. caninus were positive, either to single or multiple infections. These data showed that boas reared in captivity were highly parasitized with intestinal and pulmonary helminthes
Margarita Chiaraviglio - One of the best experts on this subject based on the ideXlab platform.
-
Species Delimitation in the Continental Forms of the Genus Epicrates (Serpentes, Boidae) Integrating Phylogenetics and Environmental Niche Models
2013Co-Authors: Paula C. Rivera, V. Cola, Juan J. Martínez, Cristina N Gardenal, Margarita ChiaraviglioAbstract:Until recently, the genus Epicrates (Boidae) presented only one continental species, Epicrates cenchria, distributed in Central and South America, but after a taxonomic revision using morphologic characters five species were recognized: E. cenchria, E. crassus, E. maurus, E. assisi, and E. alvarezi. We analyzed two independent data sets, environmental niche models and phylogeny based on molecular information, to explore species delimitation in the continental species of this genus. Our results indicated that the environmental requirements of the species are different; therefore there are not evidences of ecological interchangeability among them. There is a clear correlation between species distributions and the major biogeographic regions of Central and South America. Their overall distribution reveals that allopatry or parapatry is the general pattern. These evidences suggest that habitat isolation prevents or limits gene exchange among them. The phylogenetic reconstruction showed that the continental Epicrates are monophyletic, being E. alvarezi the sister species for the remaining two clades: E. crassus- E. assisi, and E. maurus- E. cenchria. The clade grouping the continental Epicrates is the sister taxon of the genus Eunectes and not of the Caribbean Epicrates clade, indicating that the genus is paraphyletic. There is a non-consistent pattern in niche evolution among continental Epicrates. On the contrary, a high variation and abrupt shifts in environmental variables are shown when ancestral character states were reconstructed on the sequence-based tree. The degree of genetic and ecological divergence among continental Epicrates and the phylogenetic analyses suppor
-
Species delimitation in the continental forms of the genus Epicrates (serpentes, boidae) integrating phylogenetics and environmental niche models
PLoS ONE, 2011Co-Authors: Paula C. Rivera, V. Cola, Juan J. Martínez, Cristina N Gardenal, Margarita ChiaraviglioAbstract:Until recently, the genus Epicrates (Boidae) presented only one continental species, Epicrates cenchria, distributed in Central and South America, but after a taxonomic revision using morphologic characters five species were recognized: E. cenchria, E. crassus, E. maurus, E. assisi, and E. alvarezi. We analyzed two independent data sets, environmental niche models and phylogeny based on molecular information, to explore species delimitation in the continental species of this genus. Our results indicated that the environmental requirements of the species are different; therefore there are not evidences of ecological interchangeability among them. There is a clear correlation between species distributions and the major biogeographic regions of Central and South America. Their overall distribution reveals that allopatry or parapatry is the general pattern. These evidences suggest that habitat isolation prevents or limits gene exchange among them. The phylogenetic reconstruction showed that the continental Epicrates are monophyletic, being E. alvarezi the sister species for the remaining two clades: E. crassus - E. assisi, and E. maurus - E. cenchria. The clade grouping the continental Epicrates is the sister taxon of the genus Eunectes and not of the Caribbean Epicrates clade, indicating that the genus is paraphyletic. There is a non-consistent pattern in niche evolution among continental Epicrates. On the contrary, a high variation and abrupt shifts in environmental variables are shown when ancestral character states were reconstructed on the sequence-based tree. The degree of genetic and ecological divergence among continental Epicrates and the phylogenetic analyses support the elevation to full species of E. cenchria, E. crassus, E. maurus, E. assisi, and E. alvarezi.
Briguera Verónica - One of the best experts on this subject based on the ideXlab platform.
-
Comunicación química en la boa arco iris Epicrates cenchria alvarezi (Serpentes: boidae)
2010Co-Authors: Chiaraviglio De Torres, Margarita, Briguera Verónica, Gutierrez MercedesAbstract:In snakes there are two possible pheromonal sources: skin and cloacal glands. In this work, we tested both secretions in adults of Epicrates cenchria alvarezi as messages transmitters, trying to explain the role that plays this information in the social context of this species. Both secretions have shown to have pheromonal function. Conespecific odors elicited more tongue extrusions than other stimuli did. These results suggest that the snake is capable of discriminating conspecifics based on chemical cues alone.Asociación Herpetológica Argentina (AHA
-
Experiencias de seguimiento de rastros por los machos de boa arco iris Epicrates cenchria alvarezi (Serpentes: Boidae) mediado por mensajes químicos
Asociación Herpetológica Argentina, 1997Co-Authors: Briguera Verónica, Chiaraviglio Margarita, Gutierrez MercedesAbstract:En el presente trabajo probamos la habilidad de los machos de Epicrates cenchria alvarezi para encontrar y seguir señales químicas depositadas en el sustrato como rastros de olor y examinamos el posible origen de la huella química. Los machos parecen rastrear a las hembras si éstas tienen obstáculos en los que propulsarse y en donde dejar el rastro químico. Los resultados sugieren que la piel de las hembras es una fuente probable de las señales olorosas. In some species of snakes it has been demostrated the ability of males to found and follow chemical signals deposited over sustrate as odor trails. In this paper we tested this ability in males of Epicrates cenchria alvarezi and we also examined the possible source of the chemical signals. Males seem to follow better the trails if females have obstacles to propel herselfs and where to lie a chemical trail. Results suggest that the skin of females is the probable source of the chemical signals
-
Experiencias de seguimiento de rastros por los machos de boa arco iris Epicrates cenchria alvarezi (Serpentes: boidae) mediado por mensajes químicos
1997Co-Authors: Briguera Verónica, Chiaraviglio De Torres, Margarita, Gutierrez MercedesAbstract:En el presente trabajo probamos la habilidad de los machos de Epicrates cenchria alvarezi para encontrar y seguir señales químicas depositadas en el sustrato como rastros de olor y examinamos el posible origen de la huella química. Los machos parecen rastrear a las hembras si éstas tienen obstáculos en los que propulsarse y en donde dejar el rastro químico. Los resultados sugieren que la piel de las hembras es una fuente probable de las señales olorosas.Asociación Herpetológica Argentina (AHA
-
Comunicación química en la boa arco iris Epicrates cenchria alvarezi (Serpentes, Boidae)
Asociación Herpetológica Argentina, 1994Co-Authors: Briguera Verónica, Chiaraviglio Margarita, Gutierrez MercedesAbstract:In snakes there are two possible pheromonal sources: skin and cloacal glands. In this work, we tested both secretions in adults of Epicrates cenchria alvarezi as messages transmitters, trying to explain the role that plays this information in the social context of this species. Both secretions have shown to have pheromonal function. Conespecific odors elicited more tongue extrusions than other stimuli did. These results suggest that the snake is capable of discriminating conspecifics based on chemical cues alone
Armando E. Gonzalez - One of the best experts on this subject based on the ideXlab platform.
-
presence of porocephalus clavatus arthropoda porocephalidae in peruvian boidae snakes
Veterinary Parasitology, 2011Co-Authors: Luis A Gomezpuerta, Maria T Lopezurbina, Armando E. GonzalezAbstract:Abstract The pentastome species, Porocephalus clavatus, has been found to infect the lungs of two species of snakes in the family Boidae family (Boa constrictor and Epicrates cenchria). The individual of B. constrictor was collected in the Amazonian rainforest of Departamento Loreto, Peru. The E. cenchria was recovered from the pet trade in Lima, Peru's capital city. A total of 22 P. clavatus were collected and examined from these two snakes. This is the first report of P. clavatus in Peru. The morphology of the parasites and the possible importance in public and animal health are discussed.