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Auteur Juan C. Reboreda |
Documents disponibles écrits par cet auteur (20)
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Article
Romina C. Scardamaglia, Auteur ; Axel A. Lew, Auteur ; Agustín Gravano, Auteur ; David W. Winkler, Auteur ; Alex Kacelnik, Auteur ; Juan C. Reboreda, AuteurSocial monogamy predominates in avian mating systems, but this strategy seems unlikely among brood parasites, where the emancipation from parental care should lead to an increase in numbers of mates for both sexes. Despite this, there is great d[...]Article
Juan M. Rojas Ripari, Auteur ; Cynthia A. Ursino, Auteur ; Juan C. Reboreda, Auteur ; María C. De Mársico, AuteurDans Ibis (161(4) 2019)Young birds communicate their need to parents through complex begging displays that include visual and acoustic cues. Nestlings of interspecific brood parasites must ‘tune’ into these communication channels to secure parental care from their hos[...]Article
Igor Berkunsky, Auteur ; Luciano N. Segura, Auteur ; Rosana M. Aramburu, Auteur ; Román A. Ruggera, Auteur ; Walter S. Svagelj, Auteur ; Juan C. Reboreda, AuteurIn this study we analyse factors affecting nest survival in Blue-fronted Parrots Amazona aestiva breeding in the Chaco region of northern Argentina. We combined temporal and environmental variables in order to determine which best explain variat[...]Article
Luciano N. Segura, Auteur ; Bettina Mahler, Auteur ; Igor Berkunsky, Auteur ; Juan C. Reboreda, AuteurABSTRACT Studies on breeding biology in Neotropical birds are crucial for understanding different aspects of their life histories and also for their conservation. We describe the nesting biology of the Red-crested Cardinal (Paroaria coronata) in[...]Article
Luciano N. Segura, Auteur ; Bettina Mahler, Auteur ; Igor Berkunsky, Auteur ; Juan C. Reboreda, AuteurArticle
Adrian S. Di Giacomo, Auteur ; Alejandro G. Di Giacomo, Auteur ; Rafi Kliger, Auteur ; Juan C. Reboreda, Auteur ; Ralph Tiedemann, Auteur ; Bettina Mahler, AuteurThe Strange-tailed Tyrant Alectrurus risora (Aves: Tyrannidae) is an endemic species of southern South American grasslands that suffered a 90% reduction of its original distribution due to habitat transformation. This has led the species to be c[...]Article
Gustavo J. Fernández, Auteur ; Juan C. Reboreda, AuteurThe breeding system of the Greater Rhea Rhea americana is almost unique among birds as it combines harem polygyny and sequential polyandry, with communal egg-laying and uniparental male care. In this species, large communal clutches (more than 3[...]Article
Alejandro G. Di Giacomo, Auteur ; Adrian S. Di Giacomo, Auteur ; Juan C. Reboreda, AuteurThe north-east of Argentina contains a high number of globally threatened grassland birds and is increasingly managed for livestock, with annual burning in remaining natural grasslands. The Strange-tailed Tyrant Alectrurus risora, a globally thr[...]Article
Diego T. Tuero, Auteur ; Vanina D. Fiorini, Auteur ; Juan C. Reboreda, AuteurAvian brood parasites, including cuckoos and cowbirds, have multiple negative effects on their hosts. We analysed the effects of Shiny Cowbird Molothrus bonariensis parasitism on different components (e.g. egg losses, hatching success, chick sur[...]Article
Andrea A. Astié, Auteur ; Juan C. Reboreda, AuteurAvian brood parasites usually remove or puncture host eggs. Several hypotheses have been proposed to explain the function of these behaviors. Removing or puncturing host eggs may enhance the efficiency of incubation of cowbird eggs (incubation-e[...]Article
Bettina Mahler, Auteur ; Nancy I. Lopez, Auteur ; Alejandro G. Di Giacomo, Auteur ; Juan C. Reboreda, AuteurThe Shiny Cowbird Molothrus bonariensis is a sexually dichromatic species, in which males have blackish-blue iridescence and females are dull brown. However, in some subtropical parts of its distribution, females show a plumage polymorphism that[...]Article
Igor Berkunsky, Auteur ; Juan C. Reboreda, AuteurThe frequency of cavity reoccupation in secondary cavity nesters depends on several factors including quality of cavities, degree of nest-site fidelity, competition with other cavity nesters and availability of new cavities. Blue-fronted Parrots[...]Article
Luciano N. Segura, Auteur ; Juan C. Reboreda, AuteurThe main cause of nest mortality for most bird species is predation and nest survival rates often vary in relation to time-specific variables. Few investigators have examined time-specific patterns of nest survival in Neotropical birds, and most[...]Article
Diego T. Tuero, Auteur ; Vanina D. Fiorini, Auteur ; Bettina Mahler, Auteur ; Juan C. Reboreda, AuteurIn birds, egg size affects chick growth and survival and it is an important component of reproductive success. The shiny cowbird Molothrus bonariensis is an extreme generalist brood parasite that uses hosts with a wide range of body masses. Surv[...]Article
Andrea A. Astié, Auteur ; Juan C. Reboreda, AuteurThe reproductive success of parasitic cowbirds (Molothrus spp.) varies among host species and is influenced by the degree of synchronization in timing of egg laying, the duration of parasite and host incubation periods, and the ability of hosts [...]