Diversidad de la avifauna acuática y ribereña en época de vaciante en la zona de aprovechamiento directo de la cuenca del río Pacaya-reserva nacional Pacaya Samiria
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Universidad Nacional de la Amazonía Peruana
Abstract
De agosto a octubre de 2018 se evaluó la diversidad de la avifauna acuática y ribereña en época de vaciante en la Zona de Aprovechamiento Directo (ZAD) de la cuenca del río Pacaya (Reserva Nacional Pacaya Samiria), mediante censo en canoa. La composición de la avifauna acuática y ribereña en época de vaciante fue de 18 órdenes, 39 familias y 85 especies con predominancia del órden Passeriformes; mientras que la abundancia relativa fue variable donde Phalacrocorax brasilianus reportó 30.98 ind/km, Ardea alba 17.27 ind/km, Phaetusa simplex 16.32 ind/km, Jacana jacana 12.82 ind/km, Opisthocomus hoazin 10.22 ind/km, Dendrocygna autumnalis 9.12 ind/km y Cairina moschata 6.27 ind/km. Las densidades más altas estuvieron representados por 5 especies: Phalacrocorax brasilianus con 469 ind./km2, Phaetusa simplex 243 ind/km2, Jacana jacana 231 ind/km2, Ardea alba 223 ind/km2 y Opisthocomus hoazin 133 ind/km2. Se concluye que la avifauna acuática y ribereña en época de vaciante en la zona de aprovechamiento directo de la cuenca del río Pacaya - RNPS, está conformada principalmente por especies del órden Passeriformes, Charadriiformes y Pelecaniformes.
Since august to october 2018 we studied the diversity of the avifauna acuatic and riparian in no flood epoc in the Zona de Aprovechamiento Directo (ZAD) basin Pacaya river (National Reserve Pacaya Samiria), by census in boat. Composition has of 18 orders, 39 families and 85 species with dominance of the Passeriformes order; the relative abundance was variable where Phalacrocorax brasilianus report 30.98 ind/km, Ardea alba 17.27 ind/km, Phaetusa simplex 16.32 ind/km, Jacana jacana 12.82 ind/km, Opisthocomus hoazin 10.22 ind/km, Dendrocygna autumnalis 9.12 ind/km y Cairina moschata 6.27 ind/km. Densities more high was for 5 species: Phalacrocorax brasilianus with 469 ind./km2, Phaetusa simplex 243 ind/km2, Jacana jacana 231 ind/km2, Ardea alba 223 ind/km2 y Opisthocomus hoazin 133 ind/km2. We concluded that acuatic and riparian avifauna in no flooded epoc in the zone of direct exploitation of the basin Pacaya rier- RNPS, is conformed by species Passeriformes, Charadriiformes and Pelecaniformes order.
Since august to october 2018 we studied the diversity of the avifauna acuatic and riparian in no flood epoc in the Zona de Aprovechamiento Directo (ZAD) basin Pacaya river (National Reserve Pacaya Samiria), by census in boat. Composition has of 18 orders, 39 families and 85 species with dominance of the Passeriformes order; the relative abundance was variable where Phalacrocorax brasilianus report 30.98 ind/km, Ardea alba 17.27 ind/km, Phaetusa simplex 16.32 ind/km, Jacana jacana 12.82 ind/km, Opisthocomus hoazin 10.22 ind/km, Dendrocygna autumnalis 9.12 ind/km y Cairina moschata 6.27 ind/km. Densities more high was for 5 species: Phalacrocorax brasilianus with 469 ind./km2, Phaetusa simplex 243 ind/km2, Jacana jacana 231 ind/km2, Ardea alba 223 ind/km2 y Opisthocomus hoazin 133 ind/km2. We concluded that acuatic and riparian avifauna in no flooded epoc in the zone of direct exploitation of the basin Pacaya rier- RNPS, is conformed by species Passeriformes, Charadriiformes and Pelecaniformes order.
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Fauna, Aves acuáticas, Biodiversidad, Reservas naturales, Sequia
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