Este texto muestra la teoría evolucionista de Charles Darwin, la cual propuso en la obra "El... more Este texto muestra la teoría evolucionista de Charles Darwin, la cual propuso en la obra "El origen de las especies por medio de la selección natural, o la preservación de las razas favorecidas en la lucha por la vida" el 24 de noviembre del año 1859, constituyendo este hecho el hito más grande la historia de la biología.
The Antilles harbour several island endemic odonate species, including some palaeoendemics, withi... more The Antilles harbour several island endemic odonate species, including some palaeoendemics, within a relatively small and anthropized area. Such attributes give this archipelago a special significance for the conservation of Odonata in the Neotropics. However, despite the importance of these islands, inadequately surveyed regions persist, mainly in the Greater Antilles, and there is not enough information to set IUCN threat categories for eight species supposed to be at risk, which are currently classified as data deficient (DD). To update the distribution of endangered (EN), vulnerable (VU) and DD species, we conducted a series of field surveys in Dominican Republic, Jamaica and Cuba, and compiled data from literature, museum collections as well as personal communications. We sampled a total of 37 species, including Microneura caligata, Phylolestes ethelae and Hypolestes clara(EN); H. trinitatis (VU); and Diceratobasis macrogaster, Neoneura maria and Protoneura capillaris (DD). We ...
Se describen dos especies nuevas del género Achromoporus Loomis, 1936, colectadas en el Parque Na... more Se describen dos especies nuevas del género Achromoporus Loomis, 1936, colectadas en el Parque Nacional José del Carmen Ramírez, en la Cordillera Central de la República Dominicana. Con estas se eleva a 24 el número de especies del género Achromoporus para La Hispaniola, asumiendo las últimas sinonimias sugeridas por Pérez-Asso (2009).
Sampling of arthropods soil fauna were made with the objective to compare the composition of the ... more Sampling of arthropods soil fauna were made with the objective to compare the composition of the communities of these invertebrates after three years of the fire on the Pine forest from José del Carmen Ramírez National Park. Two areas with different affectation were sampling: high impact of the fire (AAI) and medium impact (AMI). These areas were compared with an area that had not suffered any impact: witness area (AT). The Shannon-Wiever diversity index calculated for each area was similar. On the other hands, the similarities in the composition among all areas were very low. Comparing to AT, the AAI lost 13 families and the AMI lost 17. However, other new ones families appear (8 in AAI and 15 in AMI). The Opiliones and Diplópodos are the groups that more affected with the burns of the vegetation, losing all the families detected in the AT. The Hymenoptera (Formicidae, Evanidae y Braconidae), as well as all families of Heteroptera and Tysanoptera, the spiders Ctenidae y Philodromid...
por primera vez para La Hispaniola la presencia de dos especies de milpiés: Oxidus gracilis (C. L... more por primera vez para La Hispaniola la presencia de dos especies de milpiés: Oxidus gracilis (C. L. Koch) y Chondromorpha xanthotricha (Attems), así como de Asiomorpha coarctata (DeSaussure) para la República Dominicana, esta última reconocida hasta el momento solo para Haití. Se ofrece la información taxonómica pertinente, se ilustran los gonopodos y se presentan fotografías del dorso anterior y el dorso posterior del cuerpo de las tres especies. ABSTRACT. The presence of two species of millipeds, Oxidus gracilis (C. L. Koch) and Chondromorpha xanthotricha (Attems) are reported for the first time from Hispaniola, while Asiomorpha coarctata (DeSaussure) registered only from Haiti, is now known to the Dominican Republic. Taxonomic information, gonopods illustrations as well as images of the three species are provided.
RESUMEN Se describe una especie nueva del género Hypselodesmus y se ofrece registro de nuevas loc... more RESUMEN Se describe una especie nueva del género Hypselodesmus y se ofrece registro de nuevas localidades para Hypselodesmus bicolor Loomis, 1941 e Hypselodesmus assoi Suriel, 2009. Las piezas gonopodales de H. bicolor separadas del cuerpo son ilustradas por primera vez y se incluye la hembra en una nueva descripción de la especie. Se ofrece nueva descripción para H. assoi. Se discute el estatus del género Hypselodesmus Loomis, 1941, endémico de La Hispaniola, proponiéndose nuevas diagnosis y descripción. Palabras clave: Hypselodesmus, La Hispaniola, diagnosis, descripción, especie nueva, localidades nuevas. Title: The genus Hypselodesmus (Diplopoda: Polydesmida: Chelodesmidae): discussion of its status and description of a new species. ABSTRACT A new species of the genus Hypselodesmus is described and new localities for Hypselodesmus bicolor Loomis, 1941 and Hypselodesmus assoi Suriel, 2009 are reported. Isolated gonopod parts from H. bicolor are illustrated for the first time, and...
RESUMEN. Se describe una especie nueva de milpiés del género Hypselodesmus Loomis, 1941, colectad... more RESUMEN. Se describe una especie nueva de milpiés del género Hypselodesmus Loomis, 1941, colectada en el suroeste de República Dominicana, isla La Hispaniola. Es la segunda especie que se registra de este género. ABSTRACT. A new milliped species of the genus Hypselodesmus Loomis, 1941 is described from the southwest of the Dominican Republic, Hispaniola island. This is the second species that has been discovered for this genus.
Sampling of arthropods soil fauna were made with the objective to compare the composition of the ... more Sampling of arthropods soil fauna were made with the objective to compare the composition of the communities of these invertebrates after three years of the fire on the Pine forest from José del Carmen Ramírez National Park. Two areas with different affectation were sampling: high impact of the fire (AAI) and medium impact (AMI). These areas were compared with an area that had not suffered any impact: witness area (AT). The Shannon-Wiever diversity index calculated for each area was similar. On the other hands, the similarities in the composition among all areas were very low. Comparing to AT, the AAI lost 13 families and the AMI lost 17. However, other new ones families appear (8 in AAI and 15 in AMI). The Opiliones and Diplópodos are the groups that more affected with the burns of the vegetation, losing all the families detected in the AT. The Hymenoptera (Formicidae, Evanidae y Braconidae), as well as all families of Heteroptera and Tysanoptera, the spiders Ctenidae y Philodromid...
Este texto muestra la teoría evolucionista de Charles Darwin, la cual propuso en la obra "El... more Este texto muestra la teoría evolucionista de Charles Darwin, la cual propuso en la obra "El origen de las especies por medio de la selección natural, o la preservación de las razas favorecidas en la lucha por la vida" el 24 de noviembre del año 1859, constituyendo este hecho el hito más grande la historia de la biología.
The Antilles harbour several island endemic odonate species, including some palaeoendemics, withi... more The Antilles harbour several island endemic odonate species, including some palaeoendemics, within a relatively small and anthropized area. Such attributes give this archipelago a special significance for the conservation of Odonata in the Neotropics. However, despite the importance of these islands, inadequately surveyed regions persist, mainly in the Greater Antilles, and there is not enough information to set IUCN threat categories for eight species supposed to be at risk, which are currently classified as data deficient (DD). To update the distribution of endangered (EN), vulnerable (VU) and DD species, we conducted a series of field surveys in Dominican Republic, Jamaica and Cuba, and compiled data from literature, museum collections as well as personal communications. We sampled a total of 37 species, including Microneura caligata, Phylolestes ethelae and Hypolestes clara(EN); H. trinitatis (VU); and Diceratobasis macrogaster, Neoneura maria and Protoneura capillaris (DD). We ...
Se describen dos especies nuevas del género Achromoporus Loomis, 1936, colectadas en el Parque Na... more Se describen dos especies nuevas del género Achromoporus Loomis, 1936, colectadas en el Parque Nacional José del Carmen Ramírez, en la Cordillera Central de la República Dominicana. Con estas se eleva a 24 el número de especies del género Achromoporus para La Hispaniola, asumiendo las últimas sinonimias sugeridas por Pérez-Asso (2009).
Sampling of arthropods soil fauna were made with the objective to compare the composition of the ... more Sampling of arthropods soil fauna were made with the objective to compare the composition of the communities of these invertebrates after three years of the fire on the Pine forest from José del Carmen Ramírez National Park. Two areas with different affectation were sampling: high impact of the fire (AAI) and medium impact (AMI). These areas were compared with an area that had not suffered any impact: witness area (AT). The Shannon-Wiever diversity index calculated for each area was similar. On the other hands, the similarities in the composition among all areas were very low. Comparing to AT, the AAI lost 13 families and the AMI lost 17. However, other new ones families appear (8 in AAI and 15 in AMI). The Opiliones and Diplópodos are the groups that more affected with the burns of the vegetation, losing all the families detected in the AT. The Hymenoptera (Formicidae, Evanidae y Braconidae), as well as all families of Heteroptera and Tysanoptera, the spiders Ctenidae y Philodromid...
por primera vez para La Hispaniola la presencia de dos especies de milpiés: Oxidus gracilis (C. L... more por primera vez para La Hispaniola la presencia de dos especies de milpiés: Oxidus gracilis (C. L. Koch) y Chondromorpha xanthotricha (Attems), así como de Asiomorpha coarctata (DeSaussure) para la República Dominicana, esta última reconocida hasta el momento solo para Haití. Se ofrece la información taxonómica pertinente, se ilustran los gonopodos y se presentan fotografías del dorso anterior y el dorso posterior del cuerpo de las tres especies. ABSTRACT. The presence of two species of millipeds, Oxidus gracilis (C. L. Koch) and Chondromorpha xanthotricha (Attems) are reported for the first time from Hispaniola, while Asiomorpha coarctata (DeSaussure) registered only from Haiti, is now known to the Dominican Republic. Taxonomic information, gonopods illustrations as well as images of the three species are provided.
RESUMEN Se describe una especie nueva del género Hypselodesmus y se ofrece registro de nuevas loc... more RESUMEN Se describe una especie nueva del género Hypselodesmus y se ofrece registro de nuevas localidades para Hypselodesmus bicolor Loomis, 1941 e Hypselodesmus assoi Suriel, 2009. Las piezas gonopodales de H. bicolor separadas del cuerpo son ilustradas por primera vez y se incluye la hembra en una nueva descripción de la especie. Se ofrece nueva descripción para H. assoi. Se discute el estatus del género Hypselodesmus Loomis, 1941, endémico de La Hispaniola, proponiéndose nuevas diagnosis y descripción. Palabras clave: Hypselodesmus, La Hispaniola, diagnosis, descripción, especie nueva, localidades nuevas. Title: The genus Hypselodesmus (Diplopoda: Polydesmida: Chelodesmidae): discussion of its status and description of a new species. ABSTRACT A new species of the genus Hypselodesmus is described and new localities for Hypselodesmus bicolor Loomis, 1941 and Hypselodesmus assoi Suriel, 2009 are reported. Isolated gonopod parts from H. bicolor are illustrated for the first time, and...
RESUMEN. Se describe una especie nueva de milpiés del género Hypselodesmus Loomis, 1941, colectad... more RESUMEN. Se describe una especie nueva de milpiés del género Hypselodesmus Loomis, 1941, colectada en el suroeste de República Dominicana, isla La Hispaniola. Es la segunda especie que se registra de este género. ABSTRACT. A new milliped species of the genus Hypselodesmus Loomis, 1941 is described from the southwest of the Dominican Republic, Hispaniola island. This is the second species that has been discovered for this genus.
Sampling of arthropods soil fauna were made with the objective to compare the composition of the ... more Sampling of arthropods soil fauna were made with the objective to compare the composition of the communities of these invertebrates after three years of the fire on the Pine forest from José del Carmen Ramírez National Park. Two areas with different affectation were sampling: high impact of the fire (AAI) and medium impact (AMI). These areas were compared with an area that had not suffered any impact: witness area (AT). The Shannon-Wiever diversity index calculated for each area was similar. On the other hands, the similarities in the composition among all areas were very low. Comparing to AT, the AAI lost 13 families and the AMI lost 17. However, other new ones families appear (8 in AAI and 15 in AMI). The Opiliones and Diplópodos are the groups that more affected with the burns of the vegetation, losing all the families detected in the AT. The Hymenoptera (Formicidae, Evanidae y Braconidae), as well as all families of Heteroptera and Tysanoptera, the spiders Ctenidae y Philodromid...
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