Portal de Periódicos da CAPES

Ensamble de aves del humedal de Cerro Negro, Puerto Morín, La Libertad

2017; Antenor Orrego Private University; Volume: 24; Issue: 2 Linguagem: Inglês

10.22497/arnaldoa.242.24215

2413-3299

Luis E. Pollack Velásquez,

Wildlife Conservation and Criminology Analyses

Resumen Se evaluo la abundancia, diversidad, composicion y distribucion del ensamble de aves del humedal Cerro Negro, Puerto Morin, provincia Viru, region La Libertad, Peru, entre los meses de enero y agosto de 2017. Se determinaron seis tipos de habitats: juncal, espejo de agua, gramadal, ineal, dren y arenal; utilizando para cada uno el metodo del transecto con una distancia de 50 x 100 m, y puntos de conteo con diametro indeterminado. Las observaciones de las especies se realizaron con la ayuda de binoculares de 10 x 42 mm; el registro fotografico, con una camara digital con zoom de 400 mm y la determinacion se realizo con bibliografia especializada. Se registro un total de 2799 individuos, 69 especies de aves, distribuidas en 33 familias; una especie endemica, 18 migratorias boreales y 50 residentes. La familia Scolopacidae posee el mayor numero de especies. La especie mas abundante fue Leucophaeus pipixcan (17,71 %). El gramadal posee un mayor numero de especies de aves (50), una alta diversidad ( H = 3,574 bits/individuos y 1 - D = 0,964) y las especies estan distribuidas de manera uniforme ( J = 0,913). La mayor similaridad se da entre el gramadal y juncal (0,60), comparten 31 especies. Palabras clave: ensamble de aves, humedal Cerro Negro, Puerto Morin. Abstract We evaluated the abundance, diversity, composition and distribution of the bird assemblage of the Cerro Negro wetland, Puerto Morin, province of Viru, region of La Libertad, Peru, between January and August 2017. We determined six types of habitats: bulrush, pond, grassland, cattail, drainage and sand; using for each one the method of transect with a distance of 50 x 100 m, and count points with indeterminate diameter. Species observations were performed using binoculars of 10 x 42 mm; the photographic record with a digital camera with zoom of 400 mm, and the determination was carried out with specialized bibliography. There were a total of 2799 individuals, 69 bird species, distributed in 33 families; one endemic species, 18 boreal migratory and 50 residents. The Scolopacidae family has the largest number of species. The most abundant species was Leucophaeus pipixcan (17.71 %). The grassland has a higher number of bird species (50), a high diversity ( H = 3.574 bits/individuals and 1 - D = 0.964) and the species are evenly distributed ( J = 0.913). The greatest similarity occurs between the grassland and bulrush habitat (0.60), sharing 31 species. Keywords: bird assemblage, Cerro Negro wetland, Puerto Morin.