Resumo
In this study we present the results of inventory efforts of non-volant mammals in Sangay National Park (SNP), one of the least studied regions of Ecuador. We conducted inventories at 9 locations between December 2010 and June 2015 along a gradient of elevations between 1.300 and 3.650 m. To document the presence of non-volant mammals we used capture techniques (Sherman, Tomahawk, and pitfall traps) and direct and indirect detection techniques (track and sign surveys, interviews). The trap effort consisted of 5.730 trap/nights. We detected 86 species in the study area of which rodents were the most diverse group with 36 species (41.8%). The small mammals Chilomys instans, Neusticomys vossi, Ichthyomys cf. stolzmanni, Thomasomys fumeus, Dactilomys dactylinus and Echimys saturnus, the marsupial Marmosa rubra were detected in the SNP for the first time. The shrew-opossum Caenolestes sangay, shrew Cryptotis montivaga and rodents Phyllotis haggardi, Thomasomys fumeus, T. hutsoni, T. cf silvestris, Rhipidomys sp. nov., y Cavia patzelti are endemic species that speak to the biogeographic importance of SNP. Our results with additions from other published studies indicate the presence of 103 species of non-volant mammal, positioning it as the most diverse natural area in the Andes of Ecuador, and as the second most diverse of the tropical Andes.
En el presente estudio se documenta la riqueza de mamíferos no voladores del Parque Nacional Sangay (PNS), una de las zonas con mayor vacío de información de Ecuador. Realizamos relevamientos en nueve localidades entre diciembre 2010 y junio del 2015 en un gradiente altitudinal entre los 1.300 y 3.650 m. Para el registro de mamíferos no voladores usamos técnicas de captura (trampas Sherman, Tomahawk y de caída) y técnicas de detección directa e indirecta (recorridos, búsqueda de rastros, entrevistas). El esfuerzo de captura fue de 5.730 trampas/noche. Se registraron 86 especies en el área de estudio de los cuales los roedores fue el orden más diverso con 36 especies (41.8%). Los pequeños mamíferos Marmosa rubra, Chilomys instans, Neusticomys vossi, Ichthyomys cf. stolzmanni, Thomasomys fumeus, Dactilomys dactylinus y Echimys cf. saturnus son los primeros registros para el PNS. El ratón marsupial Caenolestes sangay, la musaraña Cryptotis montivaga y los roedores Phyllotis haggardi, Thomasomys fumeus, T. hutsoni, T. cf. silvestris, Rhipidomys sp. nov., y Cavia patzelti son especies endémicas que habitan en el área y demuestran la importancia biogeográfica del PNS. Nuestros resultados más los adicionados con la literatura previa indican que en la actualidad el PNS alberga a 103 especies, posicionándolo como el área natural con mayor riqueza de mamíferos no voladores de los Andes de Ecuador y como la segunda más diversa de los Andes Tropicales.
Assuntos
Animais , Biodiversidade , Distribuição Animal , Mamíferos , Equador , Parques RecreativosResumo
In this study we present the results of inventory efforts of non-volant mammals in Sangay National Park (SNP), one of the least studied regions of Ecuador. We conducted inventories at 9 locations between December 2010 and June 2015 along a gradient of elevations between 1.300 and 3.650 m. To document the presence of non-volant mammals we used capture techniques (Sherman, Tomahawk, and pitfall traps) and direct and indirect detection techniques (track and sign surveys, interviews). The trap effort consisted of 5.730 trap/nights. We detected 86 species in the study area of which rodents were the most diverse group with 36 species (41.8%). The small mammals Chilomys instans, Neusticomys vossi, Ichthyomys cf. stolzmanni, Thomasomys fumeus, Dactilomys dactylinus and Echimys saturnus, the marsupial Marmosa rubra were detected in the SNP for the first time. The shrew-opossum Caenolestes sangay, shrew Cryptotis montivaga and rodents Phyllotis haggardi, Thomasomys fumeus, T. hutsoni, T. cf silvestris, Rhipidomys sp. nov., y Cavia patzelti are endemic species that speak to the biogeographic importance of SNP. Our results with additions from other published studies indicate the presence of 103 species of non-volant mammal, positioning it as the most diverse natural area in the Andes of Ecuador, and as the second most diverse of the tropical Andes.(AU)
En el presente estudio se documenta la riqueza de mamíferos no voladores del Parque Nacional Sangay (PNS), una de las zonas con mayor vacío de información de Ecuador. Realizamos relevamientos en nueve localidades entre diciembre 2010 y junio del 2015 en un gradiente altitudinal entre los 1.300 y 3.650 m. Para el registro de mamíferos no voladores usamos técnicas de captura (trampas Sherman, Tomahawk y de caída) y técnicas de detección directa e indirecta (recorridos, búsqueda de rastros, entrevistas). El esfuerzo de captura fue de 5.730 trampas/noche. Se registraron 86 especies en el área de estudio de los cuales los roedores fue el orden más diverso con 36 especies (41.8%). Los pequeños mamíferos Marmosa rubra, Chilomys instans, Neusticomys vossi, Ichthyomys cf. stolzmanni, Thomasomys fumeus, Dactilomys dactylinus y Echimys cf. saturnus son los primeros registros para el PNS. El ratón marsupial Caenolestes sangay, la musaraña Cryptotis montivaga y los roedores Phyllotis haggardi, Thomasomys fumeus, T. hutsoni, T. cf. silvestris, Rhipidomys sp. nov., y Cavia patzelti son especies endémicas que habitan en el área y demuestran la importancia biogeográfica del PNS. Nuestros resultados más los adicionados con la literatura previa indican que en la actualidad el PNS alberga a 103 especies, posicionándolo como el área natural con mayor riqueza de mamíferos no voladores de los Andes de Ecuador y como la segunda más diversa de los Andes Tropicales.(AU)
Assuntos
Animais , Mamíferos , Distribuição Animal , Biodiversidade , Parques Recreativos , EquadorResumo
We describe a new species of terrestrial frog of the genus Pristimantis of medium-size (the SVL of males from 22.18 to 25.13 mm) found in the cloud forests of the eastern foothills of the Sangay National Park, located in the mid-eastern region of Ecuador at an elevation of 2750 meters. We assign the new species Pristimantis latericius sp. nov., to the Pristimantis lacrimosus group, differentiating it from the rest of the members of this group for having prominent tubercles on the upper eyelid and red-orange coloration on its dorsum. Calls are short, one-note, with two harmonic bands. In the last few years in the Sangay National Park, important faunal developments have been made. However further studies are necessary to help document the ecology and natural history of the amphibians, as they will help to understand ecological processes. The discovery of this and other new species in this region demonstrates its biological importance, validating the development of conservation plans in this important World Heritage Site.
Assuntos
Animais , Anuros/classificação , Especificidade da Espécie , FilogeniaResumo
We describe a new species of terrestrial frog of the genus Pristimantis of medium-size (the SVL of males from 22.18 to 25.13 mm) found in the cloud forests of the eastern foothills of the Sangay National Park, located in the mid-eastern region of Ecuador at an elevation of 2750 meters. We assign the new species Pristimantis latericius sp. nov., to the Pristimantis lacrimosus group, differentiating it from the rest of the members of this group for having prominent tubercles on the upper eyelid and red-orange coloration on its dorsum. Calls are short, one-note, with two harmonic bands. In the last few years in the Sangay National Park, important faunal developments have been made. However further studies are necessary to help document the ecology and natural history of the amphibians, as they will help to understand ecological processes. The discovery of this and other new species in this region demonstrates its biological importance, validating the development of conservation plans in this important World Heritage Site.(AU)