Mostrando 10 resultados de: 14
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Assessing methods for estimating minimum population size and monitoring andean condors (Vultur Gryphus) in Southern Ecuador
ArticleAbstract: The Andean Condor (Vultur gryphus) is a critically endangered species in Ecuador and is threatened aPalabras claves:Andean condor, Cajas national park, Feeding station, Monitoring, Paramo, Population size, VULTUR GRYPHUSAutores:Boris A. Tinoco, Graham C.H., Latta S.C., Pedro Xavier Astudillo WebsterFuentes:googlescopusAn?lisis del nicho ecol?gico del C?ndor Andino (Vultur Gryphus) en los Andes Sur del Ecuador
Bachelor ThesisAbstract: El C?ndor Andino en el Ecuador se encuentra en peligro de extinci?n debido a la intervenci?n antr?piPalabras claves:H?BITAT CONVENIENTE, MAHALANOBIS, Marginalidad, MATORRAL SECOAutores:Juan Jos? V?lez Pe?a, Marlon Andrés Machuca Quito, Pedro Xavier Astudillo WebsterFuentes:rraaeEl uso de gremios tróficos en macroinvertebrados acuáticos como herramienta de monitoreo en los Altos Andes del Sur de Ecuador
ArticleAbstract: Aquatic macroinvertebrates are widely used as indicators of water quality. However, in the Andean rePalabras claves:ABI, Cajas national park, CALIDAD DE AGUA, elevación, Elevation, Macizo del Cajas, páramo grassland, PARAMO HERBACEO, water qualityAutores:Bruno A. Timbe, Eduardo Barnuevo, Pedro Xavier Astudillo Webster, Ramiro JiménezFuentes:scopusEvaluaci?n de ?reas prioritarias para la conservaci?n bajo el enfoque de modelos de distribuci?n de especies
Bachelor ThesisAbstract: La identificaci?n y priorizaci?n de ?reas para la conservaci?n es fundamental en regiones con importPalabras claves:?REAS PROTEGIDAS, AVES ALTOANDINAS, ,MODELOS DE DISTRIBUCI?N, P?ramo, RESERVA DE LA BIOSFERA MACIZO DEL CAJASAutores:Fernando Roberto Villegas Lituma, Pedro Xavier Astudillo WebsterFuentes:rraaeNetwork structure of avian mixed-species flocks decays with elevation and latitude across the Andes
ArticleAbstract: Birds in mixed-species flocks benefit from greater foraging efficiency and reduced predation, but alPalabras claves:ecological networks, facilitation, Mixed-species flocks, network modularity, species interactionsAutores:Arbeláez-Cortés E., Ausprey I.J., Boris A. Tinoco, Cahill J.R.A., Colorado G.J.Z., Fanjul M.E., Guevara E.A., Ippi S., Jones H.H., Mangini G.G., Marin-Gómez O.H., Matthysen E., McDermott M.E., Montaño-Centellas F.A., Muñoz J., Newell F.L., Pedro Xavier Astudillo Webster, Robinson S.K., Rodewald A.D.Fuentes:googlescopusNew occurrences and habitat description of southern Ecuador endemic frog Atelopus exiguus (Anura: Bufonidae) from a conservation hotspot in the high Andes
ArticleAbstract: Atelopus species are classified as a priority taxon for monitoring and conservation, of these A. exiPalabras claves:Conservation, endangered frogs, Macizo del Cajas, Monitoring, Páramo ecosystem, water qualityAutores:Bruno A. Timbe, David Christopher Siddons, Pedro Xavier Astudillo Webster, Ramiro JiménezFuentes:scopusHabitat heterogeneity rather than the limits of protected areas influence bird communities in an Andean biosphere reserve
ArticleAbstract: The páramo ecosystem harbors a high concentration of restricted range and threatened bird species. HPalabras claves:Elevation, Macizo del Cajas Biosphere Reserve, páramo grassland, Specialist birds, trophic guildsAutores:Boris O. Landázuri, David Christopher Siddons, Latta S.C., Paul Porras, Pedro Xavier Astudillo Webster, Santiago BarrosFuentes:scopusPatch-matrix movements of birds in the páramo landscape of the southern Andes of Ecuador
ArticleAbstract: Habitat loss and fragmentation are important threats to global biodiversity. Bird species are not onPalabras claves:bird habitat guilds, native woody plants, Páramo matrix, Polylepis patches, stepping-stone movementsAutores:David Christopher Siddons, Farwig N., Pedro Xavier Astudillo Webster, Schabo D.G.Fuentes:googlescopusInfluence of habitat modification by livestock on páramo bird abundance in southern Andes of Ecuador
ArticleAbstract: Livestock grazing on natural grasslands is widespread with negative consequences to biodiversity. InPalabras claves:Elevation, habitat guilds, páramo bird specialistAutores:David Christopher Siddons, Edwin Zárate, Pedro Xavier Astudillo Webster, Santiago BarrosFuentes:scopusInfluence of patch factors and connectivity on the avifauna of fragmented polylepis forest in the Ecuadorian Andes
ArticleAbstract: Human-induced alteration of habitat is a major threat to biodiversity worldwide, especially in areasPalabras claves:Bird communities, Bird guilds, Forest patches, Gynoxys, High Andes, ParamoAutores:Boris A. Tinoco, Graham C.H., Latta S.C., Pedro Xavier Astudillo Webster, Strubbe D.Fuentes:googlescopus