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Dive into the research topics where Sofía Copello is active.

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Featured researches published by Sofía Copello.


Polar Biology | 2009

Spatio-temporal overlap between the at-sea distribution of Southern Giant Petrels and fisheries at the Patagonian Shelf

Sofía Copello; Flavio Quintana

The interactions between seabirds and fisheries pose significant threats for the seabird species such as incidental capture. In contrast, several species of seabirds meet part of their energetic requirements through the use of fisheries discards. Knowledge about the relationship between at-sea distribution of Procellariiformes and fisheries is a key tool in marine ecosystem management. We analysed the spatio-temporal relationship between the areas used by 16 satellite-tracked breeding adults of the Southern Giant Petrel and fisheries distribution and catch at the Patagonian Shelf. We also determined the time spent by adults in different marine jurisdictions. Results indicated a marked spatio-temporal association between birds and fisheries, mainly trawlers. The Southern Giant Petrels concentrated their foraging effort over Argentinean waters. The use of an abundant and predictable food source provided by the fisheries discards may be one of the factors affecting the dynamics of the Southern Giant Petrel populations in Patagonia, Argentina.


Waterbirds | 2010

Diet of Imperial Cormorants Phalacrocorax atriceps Breeding at Central Patagonia, Argentina

Pablo Yorio; Sofía Copello; Luisa Kuba; Atila E. Gosztonyi; Flavio Quintana

Abstract. Diets of breeding Imperial Cormorants Phalacrocorax atriceps were studied at two breeding colonies, Islas Blancas and Isla Arce, located approximately 30 km apart in an area subject to increasing fishing pressure off Central Patagonia, Argentina. The goal was to assess differences between locations and diet variation among stages of the breeding cycle. Pellet casts (403 and 358 pellets per colony, respectively) were collected from November 2002 to February 2003. Analyses of the pellets revealed that Imperial Cormorants at Islas Blancas and Isla Arce fed on at least 25 and 23 prey types, respectively. Fish showed the highest frequency of occurrence at both colonies (> 70%), followed by crustaceans and molluscs. Of the fish prey, Merluccius hubbsi (22–71%), Engranlis anchoita (16–51%) and Raneya brasiliensis (5–48%) showed the highest frequencies of occurrence, depending on the colony and breeding stage. At Islas Blancas, the consumption of fish and crustaceans was similar among breeding stages (incubation, young chicks and old chicks), while it was significantly different at Isla Arce. Overall contribution by frequency of occurrence showed that M. hubbsi was the most frequent prey at Islas Blancas (58%), and E. anchoita and Pleoticus muelleri were more frequent at Isla Arce (48 and 45%, respectively). Also, overall contribution by mass of the main fish prey indicated differences between colonies. Given the commercial value of the main prey species, cormorant feeding requirements and spatial ecological needs should be included as considerations in coastal fisheries management and future development.


Revista del Museo Argentino de Ciencias Naturales | 2016

Diversidad de Tetrápodos en un mosaico de ambientes del sudeste de la ecorregión Pampeana como herramienta para planificar en conservación

Juan Pablo Isacch; María Susana Bó; Laura Vega; Marco Favero; Alejandro V. Baladrón; Matías Guillermo Pretelli; Oscar Stellatelli; Augusto Cardoni; Sofía Copello; Matilde Cavalli; Carolina Block; Germán O. García; Rocío Mariano-Jelicich; Laura Marina Biondi; Viviana Comparatore; Juan Pablo Seco Pon

A pesar del avance en el conocimiento de la biodiversidad para ciertas regiones, este se encuentra en general disperso y no ha sido interpretado respecto a sus propiedades emergentes ni puesto en contextos que faciliten la toma de decisiones en conservacion. El sudeste de la ecorregion Pampas presenta una diversidad ambiental destacada en un area relativamente restringida, y existe ademas una importante cantidad de informacion sobre diversidad de Tetrapodos. Nuestro objetivo fue compilar y analizar este cumulo de informacion, a traves de una lista de especies con sus abundancias relativas por ambientes destacando aquellas endemicas y de interes para la conservacion. Evaluamos la complementariedad entre los taxa (anfibios, reptiles, aves y mamiferos) en terminos de composicion, numero de especies totales y amenazadas. La diversidad de Tetrapodos recopilada pone de manifiesto que esta pequena area presenta una importante riqueza de especies (12 especies de anfibios, 26 reptiles, 233 aves, 34 mamiferos; 41 estan amenazadas y tres son endemicas). Los ambientes representados (pastizales, dunas, sierras, humedales, estuarios, marino, agroecosistemas, urbanizaciones) contribuyen diferencialmente a la diversidad general de Tetrapodos. La distribucion desproporcionada de la riqueza de especies, de especies amenazadas y de la composicion entre ambientes dentro de cada taxon, entre taxa y entre diferentes unidades ambientales destacan la utilidad de este tipo de analisis en la interpretacion de la variacion espacial de la biodiversidad y deberian contribuir en la planificacion territorial en un marco que optimice la conservacion.


Animal Conservation | 2011

Seabird mortality associated with ice trawlers in the Patagonian shelf: effect of discards on the occurrence of interactions with fishing gear

Marco Favero; Gabriela S. Blanco; Germán O. García; Sofía Copello; J. P. Seco Pon; Esteban Frere; Flavio Quintana; P. Yorio; F. Rabuffetti; G. Cañete; Patricia Gandini


Marine Pollution Bulletin | 2003

Marine debris ingestion by Southern Giant Petrels and its potential relationships with fisheries in the Southern Atlantic Ocean

Sofía Copello; Flavio Quintana


Polar Biology | 2006

Population status and trends of Southern Giant Petrels (Macronectes giganteus) breeding in North Patagonia, Argentina

Flavio Quintana; Gabriel Punta; Sofía Copello; Pablo Yorio


Endangered Species Research | 2008

Diet of the southern giant petrel in Patagonia: fishery-related items and natural prey

Sofía Copello; Flavio Quintana; Fabián Pérez


Marine Biology | 2010

Foraging behavior and habitat use by the Southern Giant Petrel on the Patagonian Shelf.

Flavio Quintana; Olga P. Dell’Arciprete; Sofía Copello


Marine Biology | 2011

Oceanographic and biological landscapes used by the Southern Giant Petrel during the breeding season at the Patagonian Shelf

Sofía Copello; Ana I. Dogliotti; Domingo A. Gagliardini; Flavio Quintana


El Hornero | 2005

ESTADO POBLACIONAL, ECOLOGÍA Y CONSERVACIÓN DEL PETREL GIGANTE DEL SUR (MACRONECTES GIGANTEUS) EN ARGENTINA

Flavio Quintana; Adrián Schiavini; Sofía Copello

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Flavio Quintana

National Scientific and Technical Research Council

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Marco Favero

National Scientific and Technical Research Council

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Juan Pablo Seco Pon

National Scientific and Technical Research Council

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Rocío Mariano-Jelicich

National Scientific and Technical Research Council

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Germán O. García

National Scientific and Technical Research Council

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Alejandro V. Baladrón

National Scientific and Technical Research Council

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Ana I. Dogliotti

National Scientific and Technical Research Council

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Atila E. Gosztonyi

National Scientific and Technical Research Council

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Augusto Cardoni

National Scientific and Technical Research Council

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Carolina Block

National Scientific and Technical Research Council

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