Mostrando 10 resultados de: 14
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Área temáticas
Economía de la tierra y la energía(7)
Factores que afectan al comportamiento social(4)
Temas específicos de historia natural de los animales(4)
Historia natural(2)
Agricultura y tecnologías afines(1)
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: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:scopusInfluence 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:googlescopusInfluencia de la carretera Cuenca Molleturo Naranjal sobre la comunidad de aves de p?ramo en el Parque Nacional Cajas
Bachelor ThesisAbstract: La influencia de la carretera Cuenca - Molleturo - Naranjal sobre la comunidad de aves de p?ramo enPalabras claves:COMUNIDAD DE AVES, INFLUENCIA CARRETERAS, Paramo, Parque Nacional CajasAutores:Gabriela Monserrath Samaniego Regalado, Pedro Jos Machado Tapia, Pedro Xavier Astudillo WebsterFuentes:rraaeEvaluaci?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:rraaeSurvival estimates of bird species across altered habitats in the tropical Andes
ArticleAbstract: The probability of long-term persistence of a population is strongly determined by adult survival raPalabras claves:anthropogenic disturbance, Demography, ECUADOR, Montane forest, Secondary forestAutores:Andrea Karina Arriciaga Nieto, Boris A. Tinoco, Graham C.H., Graham L., Juan Manuel Aguilar Ullauri, Latta S.C., Pedro Xavier Astudillo WebsterFuentes:googlescopusTemporal stability in species richness but reordering in species abundances within avian assemblages of a tropical Andes conservation hot spot
ArticleAbstract: As the pace of environmental change increases, there is an urgent need for quantitative data revealiPalabras claves:ECUADOR, global change, Monitoring, Montane forest, protected areas, reordering, TurnoverAutores:Andrea Karina Arriciaga Nieto, Boris A. Tinoco, Graham C.H., Latta S.C., Pedro Xavier Astudillo WebsterFuentes:googlescopus