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Mostrando ítems 1-10 de 20
Nesting biology and nest survival of the Grassland Sparrow (Ammodramus humeralis) in grazed grasslands of central-eastern Argentina
(Taylor & Francis, 2021-02)
Knowledge of the breeding biology of grassland birds is important given the accelerated rate of transformation of their habitats, which has led to noticeable population declines of many species. Although several species ...
The Impacts of Parasitic Flies (Philornis spp.) on Nestlings of Three Passerines in a Southern Temperate Forest of ArgentinaImpactos de las moscas parásitas (philornis spp.) en los pollos de tres paseriformes en un bosque templado de Argentina
(Sociedad Española de Ornitología, 2021-08)
Philornis flies exert strong negative selection on avian host life histories. However, their possible influence at the southern limits of parasite distribution remains poorly studied. We collected data on Philornis parasitism ...
Developmental changes in digestive physiology of nestling house sparrows, Passer domesticus
(University of Chicago Press, 2001-10)
Six decades of studies have speculated that digestive capacity might limit avian growth rate or that developmental changes in the gut might determine developmental changes in digestive efficiency. However, there are no ...
Nesting and natural history of the Plain-winged Woodcreeper (Dendrocincla turdina): Foraging associations and uniparental careNidificación e historia natural de Dendrocincla turdina: asociaciones de forrajeo y cuidado uniparental
(Wilson Ornithological Society, 2018-12)
Los integrantes del género Dendrocincla (Furnariidae: Dendrocolaptinae) son conocidos por sus asociaciones mientras forrajean con correcciones de hormigas y grupos de mamíferos, y por sus machos emancipados, que no ...
The economics of nestmate killing in avian brood parasites: A provisions trade-off
(Oxford Univ Press Inc, 2012-01)
Some brood parasites kill all their host's offspring shortly after hatching, whereas others are tolerant and are reared in mixed host-parasite broods. This difference may arise because nestling parasites face a "provisions ...
Breeding biology and biometrics of Myiozetetes c. cayanensis (Aves: Tyrannidae) in southwest Brazilian Amazonia with breeding season in BrazilBiología reproductiva y biometría del Myiozetetes c. cayanensis (Aves: Tyrannidae) en el suroeste de la Amazonia brasileña y el período reproductivo en Brasil
(Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas, 2021)
Breeding biology and natural history of the slate-throated whitestart in Venezuela
(Wilson Ornithological Society, 2010-09)
We provide details on the breeding biology of the Slate-throated Whitestart (Myioborus miniatus) from 126 nests found during seven breeding seasons, 2002-2008, at Yacambú National Park, Venezuela. Nesting activity peaked ...
Breeding records of Leptotila rufaxilla (Aves: Columbidae) in southwestern Brazilian Amazon with notes on nesting in some regions of occurrenceRegistros de reproducción de Leptotila rufaxilla (Aves: Columbidae) en el suroeste de la Amazonia brasileña con notas sobre anidación en algunas regiones de ocurrencia
(Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas, 2021)
Do life-history traits in ancestors of cowbirds predispose them to become brood parasites?¿Predisponen las características de historia de vida de los ancestros de los Molothrus a que éstos se conviertan en parásitos de cría?
(Neotropical Ornithological Society, 2011-12)
– Hamilton & Orians (1965) postularon que el ancestro no parásito de los Molothrus habría acelerado el período de incubación y el crecimiento de sus pichones. Más tarde, al comparar los Molothrus con aves nidificantes, se ...