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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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Article . 2020
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Brood parasitism leads to zero recruitment in the globally endangered Yellow Cardinal Gubernatrix cristata

Authors: Atencio, Melina; Reboreda, Juan Carlos; Mahler, Bettina;

Brood parasitism leads to zero recruitment in the globally endangered Yellow Cardinal Gubernatrix cristata

Abstract

El Cardenal Amarillo Gubernatrix cristata es un paseriforme endémico del sur de América del Sur. En los últimos tres años, se ha llevado a cabo un plan de manejo para Cardenales Amarillos en Argentina, en el cual los individuos rescatados del tráfico ilegal de aves de jaula fueron liberados en ambientes adecuados dentro de sus poblaciones de origen. Estudiamos el éxito reproductivo de una población mixta de Cardenales Amarillos liberados y silvestres en La Pampa, Argentina, durante la temporada reproductiva de 2019. La población fue altamente parasitada por el parasito de cría Tordo Renegrido Molothrus bonariensis. La frecuencia de parasitismo fue del 100% y la intensidad de parasitismo fue de 4,5 ± 3,4 (promedio ± DS) huevos por nido parasitado (rango 1–13). No se reclutaron pichones de Cardenal Amarillo en los nidos monitoreados, principalmente como consecuencia del parasitismo por parte del Tordo Renegrido. Estas tasas de parasitismo inusualmente altas han provocado resultados poco exitosos en el programa de reintroducción y llaman a una actualización en las acciones de conservación que se han estado llevando a cabo para el Cardenal Amarillo hasta ahora. La presión de parasitismo de Tordos Renegridos varía a lo largo de la distribución del Cardenal Amarillo, relacionado a la modificación de hábitat y actividades agropecuarias. Por lo tanto, llevar a cabo más trabajos de investigación en temas de aptitud de hábitat, así como considerar la abundancia de Tordos Renegridos deberían ser incorporados como estrategias futuras para la conservación del Cardenal Amarillo.

The Yellow Cardinal Gubernatrix cristata is an ´Endangered´ passerine from southern South America. For the past three years a management plan for Yellow Cardinals has been implemented in Argentina, in which rescued individuals from the illegal cage bird trade were released back into suitable habitats within their population of origin. We studied the reproductive success of a mixed population of released and wild Yellow Cardinals in La Pampa province, Argentina, during the reproductive season of 2019. The population was highly parasitized by the brood parasitic Shiny Cowbird Molothrus bonariensis. The frequency of parasitism was 100% and the intensity of parasitism was 4.5 ± 3.4 (mean ± SD) eggs per parasitized nest (range 1-13). No Yellow Cardinal chicks were recruited in the monitored nests, mainly as a consequence of Shiny Cowbird parasitism. The unusually high rate of parasitism led to a poor outcome of the reintroduction programme and indicates the need to update the conservation actions that have been carried out for the Yellow Cardinal so far. Shiny Cowbird abundance varies within the distribution of Yellow Cardinals, related to habitat modification and farming activities. Thus, further research on habitat suitability and assessment of Shiny Cowbird abundance should be incorporated into future strategies for the conservation of the Yellow Cardinal.

Fil: Reboreda, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina

Fil: Atencio, Melina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina

Fil: Mahler, Bettina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina

Country
Argentina
Keywords

RECRUITMENT, https://purl.org/becyt/ford/1.6, REINTRODUCTIONS, YELLOW CARDINAL, https://purl.org/becyt/ford/1, BROOD PARASITISM

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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