Nueva localidad de reproducción de la Gaviota de Olrog (Larus atlanticus) en la provincia de Buenos Aires, Argentina

Daniel Rábano; Pablo García Borboroglu; Pablo Yorio

doi:10.56178/eh.v17i2.878

Short Communications Published 01 December 2002 https://doi.org/10.56178/eh.v17i2.878

New breeding location for the Olrog’s Gull Larus atlanticus in the Province of Buenos Aires, Argentina

Argentina breeding distribution conservation Larus atlanticus Olrog’s Gull

Daniel Rábano Centro de Estudios Ambientales para la Planificación y el Desarrollo. Sarmiento 230, 5° Piso, 8000 Bahía Blanca, Buenos Aires, Argentina

Pablo García Borboroglu Centro Nacional Patagónico (CONICET). Boulevard Brown s/n, 9120 Puerto Madryn, Chubut, Argentina

Pablo Yorio Centro Nacional Patagónico (CONICET). Boulevard Brown s/n, 9120 Puerto Madryn, Chubut, Argentina | Wildlife Conservation Society. 2300 Southern Boulevard, Bronx, New York, NY 10460, EEUU

Abstract

We present information on a new colony of Olrog’s Gull Larus atlanticus, endemic to Argentina and internationally considered as vulnerable. The colony, visited on November 16 2001, was on an islet located in the Canal Ancla (38°56'S, 62°11'O), 13 km southeast from Punta Alta. Nests were distributed in four groups of between 17-238 nests, adding to a total of 340 active nests. The Olrog’s Gull colony was located within a colony of Kelp Gulls (Larus dominicanus). Olrog’s Gulls did not breed in this islet during 1995. As this species may change colony sites between breeding seasons, future work should evaluate their spatial and temporal patterns of habitat use.

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References

BIRDLIFE INTERNATIONAL (2000) Threatened birds of the world. Lynx Edicions y BirdLife International, Barcelona y Cambridge.
DELHEY JKV, PETRACCI P Y GRASSINI CM (2001) Hallazgo de una nueva colonia de la Gaviota de Olrog (Larus atlanticus) en la ría de Bahía Blanca, Argentina. Hornero 16:39–42.
PARKER TE III, STOTZ DF Y FITZPATRICK JW (1996) Ecological and distributional databases. Pp. 113–136 en: STOTZ DF, FITZPATRICK JW, PARKER III TA Y MOSKOVITS DK (eds) Neotropical birds: ecology and conservation. University of Chicago Press, Chicago.
YORIO P Y HARRIS G (1992) Actualización de la distribución reproductiva, estado poblacional y de conservación de la Gaviota de Olrog (Larus atlanticus). Hornero 13:200–202.
YORIO P, PUNTA G, RÁBANO D, RABUFFETTI F, HERRERA G, SARAVIA J Y FRIEDRICH P (1997) Newly discovered breeding sites of Olrog’s Gull Larus atlanticus in Argentina. Bird Conservation International 7:161–165.
YORIO P, RÁBANO DE Y FRIEDRICH P (2001) Habitat and nest site characteristics of Olrog’s Gull Larus atlanticus breeding at Bahía San Blas, Argentina. Bird Conservation International 11:25–32.

How to cite

Daniel Rábano, Pablo García Borboroglu, Pablo Yorio (2002). New breeding location for the Olrog’s Gull Larus atlanticus in the Province of Buenos Aires, Argentina. El Hornero, Vol. 17 No. 2 (2002), 105-107. https://doi.org/10.56178/eh.v17i2.878

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[1] BIRDLIFE INTERNATIONAL (2000) Threatened birds of the world. Lynx Edicions y BirdLife International, Barcelona y Cambridge.

[2] DELHEY JKV, PETRACCI P Y GRASSINI CM (2001) Hallazgo de una nueva colonia de la Gaviota de Olrog (Larus atlanticus) en la ría de Bahía Blanca, Argentina. Hornero 16:39–42.

[3] PARKER TE III, STOTZ DF Y FITZPATRICK JW (1996) Ecological and distributional databases. Pp. 113–136 en: STOTZ DF, FITZPATRICK JW, PARKER III TA Y MOSKOVITS DK (eds) Neotropical birds: ecology and conservation. University of Chicago Press, Chicago.

[4] YORIO P Y HARRIS G (1992) Actualización de la distribución reproductiva, estado poblacional y de conservación de la Gaviota de Olrog (Larus atlanticus). Hornero 13:200–202.

[5] YORIO P, PUNTA G, RÁBANO D, RABUFFETTI F, HERRERA G, SARAVIA J Y FRIEDRICH P (1997) Newly discovered breeding sites of Olrog’s Gull Larus atlanticus in Argentina. Bird Conservation International 7:161–165.

[6] YORIO P, RÁBANO DE Y FRIEDRICH P (2001) Habitat and nest site characteristics of Olrog’s Gull Larus atlanticus breeding at Bahía San Blas, Argentina. Bird Conservation International 11:25–32.