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Interacciones entre el tordo renegrido Molothrus bonariensis y el pecho amarillo Pseudoleistes virescens : Estrategias del parásito de cría y mecanismos de defensa del hospedador
(Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires, 1996)
Effects of fragmentation and landscape matrix on the nesting success of grassland birds in the Pampas grasslands of Argentina
(Wiley Blackwell Publishing, Inc, 2015-10)
The loss of grasslands in southeastern South America has negatively affected grassland birds, leading to marked declines in their populations. However, the extent to which habitat transformation impacts on their reproductive ...
High Rates of Shiny Cowbird Parasitism on the Brown-and-yellow Marshbird Select for Complementary Host DefensesAltas Tasas de Parasitismo de Molothrus bonariensis sobre Pseudoleistes virescens Seleccionan Defensas Complementarias del Hospedador
(Cooper Ornithological Society, 2013-11)
Hosts of brood parasites may have not developed antiparasitic defenses either because host and parasite are recently sympatric or because costs of potential defenses outweigh their benefits. We studied antiparasitic defenses ...
Effects of nest-site characteristics and parental activity on cowbird parasitism and nest predation in Brown-and-yellow MarshbirdsEfectos de las características del sitio de nidificación y actividad parental en el parasitismo de cría por tordos y predación de nidos en Pseudoleistes virescens
(Wiley Blackwell Publishing, Inc, 2009-03)
Nest-site selection and nest defense are strategies for reducing the costs of brood parasitism and nest predation, two selective forces that can influence avian nesting success and fitness. During 2001-2002, we analyzed ...
Landbird Assemblages in Different Agricultural Landscapes: A Case Study in the Pampas of Central ArgentinaEnsambles de Aves Terrestres en Diferentes Paisajes Rurales: Un Estudio de Caso en las Pampas del Centro de Argentina
(Cooper Ornithological Society, 2013-02)
A combination of elements (e.g., crops and pasture lands, strips of roadside vegetation, woodlots, temporary wetlands) increases the heterogeneity of rural landscapes. Agricultural landscapes range from homogeneous, dominated ...
Brown-and-yellow marshbirds reduce their acceptance threshold of mimetic brood parasite eggs in the presence of non-mimetic eggs
(Springer Tokyo, 2016-01)
The recognition and subsequent rejection of brood parasite eggs is one of the most commonly observed defensive behaviors of the host. The brown-and-yellow marshbird (Pseudoleistes virescens) is a common host of the shiny ...
Distributional changes of landbird species in agroecosystems of central Argentina
(Cooper Ornithological Society, 2011-05)
We present the first quantitative comparative study between current (2006-2008) distributions of landbird and those recorded prior to the massive planting of transgenic soy beans in the Pampas of central Argentina (Narosky ...
Screaming Cowbird parasitism on nests of Solitary Caciques and Cattle Tyrants
(Wilson Ornithological Society, 2010-12)
The Screaming Cowbird (Molothrus rufoaxillaris) is one of the most specialized brood parasites with only three known hosts: Baywing (Agelaioides badius), the main host throughout most of its range, and two alternative hosts ...