ResumenSe presenta la avifauna de los humedales de Eten, Lambayeque, Perú, los cuales representan el límite norte de los humedales dominados por Totora (Typha angustifolia) y Junco (Scirpus spp.) en la costa peruana. Para el presente trabajo se han definido tres tipos de hábitats: Humedal; Mar y playa; y Arbustos, árboles y agricultura. La lista de aves recoge información de observaciones entre los años 1978 y 2009 y está compuesta por 153 especies pertenecientes a 17 órdenes y 45 familias. Las familias con mayor representatividad de especies son Scolopacidae con 21 especies y Laridae con 15. Cuatro especies son endémicas tumbesinas y una es endémica tumbesina y del Perú. Una especie está amenazada globalmente y ocho a nivel nacional. Constituyen amenazas para el área la cacería no regulada, la alta incidencia de residuos sólidos, la ganadería y el avance de la agricultura. Se propone que los humedales de Eten sean un Área de Importancia para la Conservación de Aves (IBA) y reciban protección formal a través del gobierno regional de Lambayeque. Futuras investigaciones en el área deben apuntar a establecer un adecuado manejo del área en cuanto a extracción de recursos y uso turístico, así como determinar si es que Sternula lorata, especie globalmente amenazada, anida en este lugar. Palabras clave: Eten, Lambayeque, avifauna, humedales costeros, Sternula lorata, conservación. AbstractWe present a list of the birds of the Eten marshes, Lambayeque, Perú. These marshes are the northernmost limit of marshes dominated by Typha angustifolia and Scirpus spp. on the Peruvian coast. Three habitat types exist on the study area: marshes; sea and beach; and trees, shrubs and agriculture. The bird list gathers information from observations made between 1978 and 2009 and is composed by 153 species belonging to 17 orders and 45 families. Families best represented were Scolopacidae with 21 species and Laridae with 15. Five species are Tumbesian endemics, one of which is also endemic to Perú. One species is globally threatened and eight are threatened according to national legislation. The problems of the area are unregulated hunting, a high amount of solid residues, cattle ranching and expansion of agriculture. We propose the Eten marshes as an Important Bird Area and discuss that it should receive formal protection through the Lambayeque regional government. Future research must be directed to establish a sustainable management of the area for resource extraction and for tourist use. Also, it is important to determine if Sternula lorata, a globally threatened species nests in this area.
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