2021
DOI: 10.1093/ornithapp/duab008
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Low reproductive success of the endangered Iberá Seedeater in its only known breeding site, the Iberá Wetlands, Argentina

Abstract: Subtropical grasslands are highly susceptible to habitat conversion and number among South America’s most threatened ecosystems. The grasslands of northeastern Argentina have been identified as a priority conservation area for threatened capuchino seedeaters because they constitute the main breeding area of these migratory birds. The Iberá Seedeater (Sporophila iberaensis) is a newly described species in the Iberá Wetlands in Argentina whose biology is still poorly understood. The endangered species inhabits g… Show more

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Cited by 7 publications
(10 citation statements)
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“…On the other hand, as also observed in other endangered grassland passerine species, lateral nest concealment was lower on predated nests than on successful ones (Repenning & Fontana 2016, Browne et al . 2021). This pattern, in which better concealed nests tended to be more successful, could indicate a strong effect of visually oriented terrestrial predators on nest fate.…”
Section: Discussionmentioning
confidence: 99%
“…On the other hand, as also observed in other endangered grassland passerine species, lateral nest concealment was lower on predated nests than on successful ones (Repenning & Fontana 2016, Browne et al . 2021). This pattern, in which better concealed nests tended to be more successful, could indicate a strong effect of visually oriented terrestrial predators on nest fate.…”
Section: Discussionmentioning
confidence: 99%
“…Para el análisis de selección de los sitios de nidificación, se muestreó un punto aleatorio por cada nido, que fue seleccionado a una distancia mínima de 5 m y máxima de 30 m del nido (Browne et al 2021). Se escogió el sustrato vegetal más cercano a cada punto que fuese potencialmente utilizable como soporte para la construcción de un nido.…”
Section: Selección De Sitios De Nidificaciónunclassified
“…Es fundamental identificar las especies vegetales que las aves seleccionan como sustratos de nidificación, ya que pueden influir tanto en el éxito reproductivo como en la vulnerabilidad de las especies, especialmente en ambientes sometidos a disturbios (Browne et al 2021;Colombo y Segura 2023). El pastizal está sujeto a constantes disturbios que alteran la estructura, altura y composición específica de la vegetación nativa (Bilenca y Miñarro 2004).…”
Section: 6)unclassified
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