Distribución geográfica y abundancia poblacional de Plegadis ridgwayi, el ibis de la Puna (Threskiornithidae) con énfasis en las poblaciones del Perú

César Arana, Víctor Pulido, Alejandra Arana, Arturo Carlos, Letty Salinas

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

Resumen

The Puna ibis Plegadis ridgwayi, is a species of Threskiornithidae that inhabits Andean wetlands and makes altitudinal migrations to the coast. Data from us, GBIF, bibliographic information and the Neotropical Waterbird Census (1992 to 2015) show that this species occurs in Ecuador, Peru, Bolivia, Argentina, and Chile, with a core area in Peru and Bolivia. It is most abundant in the latter two countries, with seven and three localities with more than 1% of the biogeographic population, respectively. They are found from 0 to 5000 m altitude (with peaks at 3000 to 4500 m and 0 to 500 m). The highest incidence of records is in southern and central Peru. There are high values of environmental availability in part of the high Andean zone from Ecuador to northern Chile and northwestern Argentina, as well as the coast of central and northern Peru. The expansion of the distribution towards the Peruvian north and coast may be due to environmental availability and the deterioration of its Andean habitat. In four coastal wetlands in central Peru, up to 818 ibises were recorded in 2006, the vast majority in Pantanos de Villa and Paraíso. The number of coastal migrants seems to be related to the intensity of droughts in the highlands of central Peru. The abundance of ibis in the high Andean Lake of Junín shows a historical decline, with emphasis after the 2004-2005 drought. This distributional expansion requires investigation of possible hybridisation with the other formerly allopatric species of the genus.

Título traducido de la contribuciónGeographical distribution and population abundance of Plegadis ridgwayi, Puna ibis (Threskiornithidae) with emphasis on the populations of Peru
Idioma originalEspañol
Número de artículo22533
PublicaciónRevista Peruana de Biologia
Volumen29
N.º3
DOI
EstadoPublicada - ago. 2022
Publicado de forma externa

Nota bibliográfica

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© 2022 Facultad de Ciencias Biologicas, Universidad Nacional Mayor de San Marcos. All rights reserved.

Palabras clave

  • altitudinal migration
  • Andean bird
  • congregatory species
  • waterfowl
  • wetlands

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