Rev. biol. mar. oceanogr. 49(2): 361-366

Nota Científica

Observaciones sobre el pingüino de penacho amarillo Eudyptes c. chrysocome en isla Gonzalo, archipiélago Diego Ramírez, Chile

Jaime A. Cursach^1,2,3, Cristián G. Suazo⁴, Jaime R. Rau^1,2,5, Edwin Niklitschek^1,6 y Jonnathan Vilugrón²

¹Programa de Doctorado en Ciencias mención Conservación y Manejo de Recursos Naturales, Universidad de Los Lagos, casilla 557, Puerto Montt, Chile

²Laboratorio de Ecología, Departamento de Ciencias Biológicas y Biodiversidad, Universidad de Los Lagos, casilla 933, Osorno, Chile

³Laboratorio de Investigación Socioambiental, Programa ATLAS, Departamento de Ciencias Sociales, Universidad de Los Lagos, casilla 933, Osorno, Chile

⁴Albatross Task Force, BirdLife International, Chile

⁵Programa IBAM, Universidad de Los Lagos, casilla 933, Osorno, Chile

⁶Centro i-mar, Universidad de Los Lagos, casilla 557, Puerto Montt, Chile

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The globally population decline of Southern Rockhopper penguins does considered this species as vulnerable. However, in the Diego Ramírez archipelago (southern Chile) during the recent years the breeding population has been increased. We describe the nesting of Southern Rockhopper penguins in two sub-colonies of recent conformation in Gonzalo Island, Diego Ramírez. Variables such as sub-colony size and location of the nest within this not explain the hatching success of eggs and survival of chicks. The nesting population of Southern Rockhopper penguin in Gonzalo Island has a pattern of expansion in its colony, explained by a local increase in population abundance and protection generated by the vegetation coverage as tussock for their nests, which acting as an forming expansive colonial frontier.

Key words:  Breeding, conservation, seabird, sub-Antarctic Islands