Wintering of Ospreys in Argentina: Insights From New Records Between 1993–2008

Saggese, Miguel D.; Roesler, Ignacio; Marano, Claudia Fabiana

doi:10.3356/jrr-ospr-14-03.1

Cited by 4 publications

(5 citation statements)

References 25 publications

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“…For example, the Western Osprey Pandion haliateus , which nests in North America and visits Argentina during the austral spring–summer, has been recorded at human‐made reservoirs (Saggese et al . 1996, 2014, Baigorria 1999) and lakes of urban green areas (Angarita Martínez 2002, Grose 2013, Almonte‐Espinosa 2018).…”

Section: Discussionmentioning

confidence: 99%

What makes an urban raptor?

Leveau

Gorleri

Roesler

et al. 2022

Ibis

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Raptor communities are negatively impacted by urbanization. However, some species can thrive in urban areas. Raptor species traits that favour their presence in urban areas have been scarcely studied. Moreover, phylogenetic relatedness may be a factor promoting raptor occurrence in urban areas. In this study, we use data gathered through citizen science in Argentina to analyse the phylogenetic signal and the drivers that correlate with raptor presence in urban settings. The mean percentage urban cover for the records of each species was considered as an index of raptor occurrence in urban areas. A total of 55 species were analysed, which accounted for 90% of the diurnal raptors of Argentina. Harris's Hawk Parabuteo unicinctus, Pearl Kite Gampsonyx swainsonii and Chimango Caracara Milvago chimango had the highest urban index. Raptor occurrence in urban areas had a marginal phylogenetic signal, indicating a tendency for more closely related species to have similar tolerances to urbanization. The index of raptor occurrence in urban areas was highest for the most common species of non-urban areas, and was not related to traits such as body mass, diet, nesting site and migratory behaviour. Our results highlight the importance of citizen science projects in data gathering at large geographical scales.

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Section: Discussionmentioning

confidence: 99%

What makes an urban raptor?

Leveau

Gorleri

Roesler

et al. 2022

Ibis

Self Cite

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“…Although more studies are necessary on migratory raptors to evaluate changes in spatial and habitat use, citizenscience records have proved useful to study these patterns in the Neotropics (Lees & Martin 2014). Similar to the Broadwinged Hawk, an increase of wintering records has also been reported for the Osprey (Pandion haliaetus) in Argentina (Saggese et al 2014).…”

Section: Discussionmentioning

confidence: 99%

Determining the Wintering Range of Broad-Winged Hawk (Buteo Platypterus) in South America Using Citizen-Science Database

Klipp

Cruz²,

Iezzi³

et al. 2018

Ornitol. Neotrop.

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∙ Several species of raptors that breed in North America migrate to the southern hemisphere during the non-breeding period. The Broad-winged Hawk (Buteo platypterus) is one of them, and its wintering distribution reaches the north and central part of South America, although there are published records for the species in Argentina and southern Brazil. We did an exhaustive search of records of the Broad-winged Hawk for South America, using bibliography, citizen-science initiatives, personal communications, and own records. We obtained 4025 georeferenced records for the 1879–2017 period. Both the numbers of records per year and the geographical range of the species have apparently increased in recent years. We also obtained the first record for Misiones province in Argentina and for Espírito Santo state, in Brazil. The wintering range of this species is estimated to cover 12.5 million km2 of the north central part of South America, including southern Brazil and northern Argentina. While it is possible that the range has expanded 700 km southwards recently, with the data available it is not possible to disentangle this possibility from changes in the distribution of bird observers. Resumen ∙ Determinando el rango invernal del Aguilucho Alas Anchas (Buteo platypterus) en Sudamérica involucrando datos de ciencia ciudadana Varias especies de aves rapaces se reproducen en América del Norte y migran durante los meses de invierno al hemisferio sur. Uno de ellos, el Aguilucho Alas Anchas (Buteo platypterus), alcanza normalmente el norte y centro de Sudamérica, aunque se han publicado registros en Argentina y en el sur de Brasil. Realizamos una búsqueda exhaustiva de registros del Aguilucho Alas Anchas para Sudamérica, en la literatura científica, en proyectos de ciencia ciudadana, comunicaciones personales y registros propios, obteniendo un total de 4025 registros georreferenciados para el período 1879–2017. Tanto el número de registros por año como el rango geográfico de la especie han aumentado en los últimos años. También reportamos el primer registro para la provincia de Misiones en Argentina y para el estado de Espírito Santo en Brasil. La zona de invernada actual de esta especie cubriría aproximadamente 12,5 millones de km2 de la porción central-norte de Sudamérica, incluyendo el sur de Brasil y el norte de Argentina. Si bien es posible que la especie se haya expandido unos 700 km hacia el sur en tiempos recientes, no es posible diferenciar esta posibilidad de cambios en la distribución de observadores de aves.

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“…Average fall counts of over 5000 migrating Ospreys were logged over the three-year study by Santana's team of hawk watchers. Finally, Saggese et al (2014) reports on the apparently growing number of Ospreys that winter as far south as Argentina. These ''over-achieving'' migrants are found throughout the year in northern Argentina and their numbers suggest that the importance of the area for overwintering and young Ospreys has been underestimated.…”

Section: Th Century Studiesmentioning

confidence: 99%