Actualización de la distribución reproductiva, estado poblacional y de conservación de la Gaviota de Olrog (Larus atlanticus)

Pablo M. Yorio; Guillermo Harris

doi:10.56178/eh.v13i3.1064

Articles Published 01 September 1992 https://doi.org/10.56178/eh.v13i3.1064

An update of the breeding distribution, population status and conservation of the Olrog's Gull (Larus atlanticus)

Pablo M. Yorio Wildlife Conservation International, Sociedad Zoológica de Nueva York | Fundación Patagonia Natural. Mosconi 36 Local 17 (C.C. 160),9120 Puerto Madryn, Chubut

Guillermo Harris Fundación Patagonia Natural. Mosconi 36 Local 17 (C.C. 160),9120 Puerto Madryn, Chubut | Wildlife Conservation International, Sociedad Zoológica de Nueva York

Abstract

In this paper we update the breeding distribution, population size and conservation status of the Olrog's gull (Larus atlanticus). Its known breeding distribution is extended 140 km north and 640 km south. with colonies at Isla Brightman, Buenos Aires province, and Islas Vernaci. Chubut province respectively. We report 5 breeding colonies, all of them located on islands. and three of which are described for the first time. We estimate the total population size in 1220 ± 127 breeding pairs. We discuss the implications of the survey results for the conservation of this species.

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References

Collar,NJ.y Andrew,P.1989.11irdslOWalch.ThcICBP worldchecklisloflhreatencdspecies.ICBPTechnicalPublicaLionNº8.
Dagucrre,lB.1933.Dosavesnuevasparalafaunaar-gentina.Hornero5:213-214.Dc
villers,P.1977.Observationsata breedingcolonyofLaros(belcheri)atlanlicus.Getfaut67:22-43.
EscaJante,R.1966.NotesontheUruguayanpopulaLionofLarusbelcheri.Condor68:507-510.
Escalanle,R.1984.Problemasenlaconservaciónde dospoblacionesdel áridossobrelacostaatlánticade SudaméricaLarus(be/cheri)allanlicusySlerMmaxi-TM. ActasdelaIIl 4ReuniónIberoamericanadeCon-servacióny ZoologíadeVertcbrados.BuenosAires,Argentina15al19denoviembrede1984. Rev.Mus.Arg.Cienc.NaL."n.Rivadavia".Zool.TomoXllI:l-60.
GiménezDixon,M.1986.Informedelaevaluaciónerec-lUadaconrelaciónalacreacióndeunareservafanunísticaenlazonade BahíaSanBIas(I)do.Pata-gones).MinisteriodeAsumosAgrarios.Pcia.deBuenosAires.
Magno,S.1971.FamiliaLaridae.lIomcro11:65-84.
Olrog,c.c.1967.Breedingof!heBand-Iailedgull(Larusbelcheri)on!heAuantiecoastofArgentina.Condor69:42-48.
Rabinowit7.,D.,S.Cairnsy T.Dillon1986.Sevenfonnsofrarityand!heirf rcquencyinthefloraof!heBritishIsles.In:Soulé,M.E.(ed)."ConscrvationBiology.'IheScicnccofScarcityandDiversity",pp.182-204.Sin-auerAssociales,SunderlallJ,Mass

How to cite

Pablo M. Yorio, Guillermo Harris (1992). An update of the breeding distribution, population status and conservation of the Olrog's Gull (Larus atlanticus). El Hornero, Vol. 13 No. 3 (1992), 200-202. https://doi.org/10.56178/eh.v13i3.1064

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[1] Collar,NJ.y Andrew,P.1989.11irdslOWalch.ThcICBP worldchecklisloflhreatencdspecies.ICBPTechnicalPublicaLionNº8.

[2] Dagucrre,lB.1933.Dosavesnuevasparalafaunaar-gentina.Hornero5:213-214.Dc

[3] villers,P.1977.Observationsata breedingcolonyofLaros(belcheri)atlanlicus.Getfaut67:22-43.

[4] EscaJante,R.1966.NotesontheUruguayanpopulaLionofLarusbelcheri.Condor68:507-510.

[5] Escalanle,R.1984.Problemasenlaconservaciónde dospoblacionesdel áridossobrelacostaatlánticade SudaméricaLarus(be/cheri)allanlicusySlerMmaxi-TM. ActasdelaIIl 4ReuniónIberoamericanadeCon-servacióny ZoologíadeVertcbrados.BuenosAires,Argentina15al19denoviembrede1984. Rev.Mus.Arg.Cienc.NaL."n.Rivadavia".Zool.TomoXllI:l-60.

[6] GiménezDixon,M.1986.Informedelaevaluaciónerec-lUadaconrelaciónalacreacióndeunareservafanunísticaenlazonade BahíaSanBIas(I)do.Pata-gones).MinisteriodeAsumosAgrarios.Pcia.deBuenosAires.

[7] Magno,S.1971.FamiliaLaridae.lIomcro11:65-84.

[8] Olrog,c.c.1967.Breedingof!heBand-Iailedgull(Larusbelcheri)on!heAuantiecoastofArgentina.Condor69:42-48.

[9] Rabinowit7.,D.,S.Cairnsy T.Dillon1986.Sevenfonnsofrarityand!heirf rcquencyinthefloraof!heBritishIsles.In:Soulé,M.E.(ed)."ConscrvationBiology.'IheScicnccofScarcityandDiversity",pp.182-204.Sin-auerAssociales,SunderlallJ,Mass