Mortality of seabirds during "El Niño 1997-98" in southern littoral of San Juan of Marcona, Ica -Peru

Authors

  • Manuel Apaza Universidad Nacional Agraria La Molina, Departamento. de Biología -Laboratorio de Ecología de Procesos
  • Aída Figari Universidad Nacional Agraria La Molina, Departamento. de Biología -Laboratorio de Ecología de Procesos

DOI:

https://doi.org/10.15381/rpb.v6i3.8436

Keywords:

Seabirds, mortality, El Niño, San Juan of Marcona, lca.

Abstract

The death rate of seabirds population at southern guano Point of San Juan of Marcona was evaluated among August of 1997 and April of 1998. Species of exclusively pelagic feeding, and restricted distribution to the scope of Peruvian Current, as guano birds Pelecanus thagus, Sula variegata, and Phalacrocorax bougainvillii; the Humboldt penguin Spheniscus humboldti, and the Inca tern Larosterna inca showed a significant correlation in monthly behave. It is related with sea surface temperature and with the absent of anchovy Engraulis ringens during "El Niño" event. Other species considered in the analysis showed a different death-rate, as Franklin's sea-gull Larus pipixcan and gray sea-gull Larus modestus, in both cases the species fed of alternative resources as Cafosoma sp. and Emerita analoga, respectively.

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Author Biography

  • Manuel Apaza, Universidad Nacional Agraria La Molina, Departamento. de Biología -Laboratorio de Ecología de Procesos
    Leonardo Romero.- Biólogo egresado de la Universidad Nacional Mayor de San Marcos (UNMSM) con especialidad en Zoología. Estudios de maestría en Ecología y Conservación en la UNMSM. Tema de investigación es ecología de invertebrados intermareales. Cursos de especialización en edición de revistas científicas.

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Published

12/31/1999

Issue

Vol. 6 No. 3 (1999)

Section

Articles

License

Copyright (c) 1999 Manuel Apaza, Aída Figari

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How to Cite

Apaza, Manuel, and Aída Figari. 1999. “Mortality of Seabirds During ‘El Niño 1997-98’ in Southern Littoral of San Juan of Marcona, Ica -Peru”. Revista Peruana De Biología 6 (3): 110-17. https://doi.org/10.15381/rpb.v6i3.8436.