Buscar
Mostrando ítems 1-10 de 14
Parasitic Behaviour of Interspecific Brood Parasitic Females
(Springer Nature Switzerland AG, 2018)
Interspecific avian brood parasites have to solve unique problems associated with their reproductive habit: they need to recognize potential hosts, search for and locate their nests, monitor nests progress and return to ...
Consecuencias teóricas del concepto de parasitismo intra-específicoTheoretical consequences of the concept 'intra-specific parasitism'
(Universidad Autónoma Metropolitana-Iztapalapa, 2017-10)
When parasitism is defined, it is customary to emphasize that it is about an inter-specific relation, i.e., between individuals of two different species. Here we critically examine that assumption and we turn to the concept ...
Coevolutionary arms race between a specialist brood parasite, the Screaming Cowbird, and its host, the Grayish Baywing
(Springer, 2019-10)
Interspecific brood parasites exploit the parental care of host species. This exploitation entails fitness costs for the hosts, which favor the evolution of antiparasitic defenses. Host defenses select for counter-defenses ...
Breeding phenology and new host list of the Black-headed Duck (Heteronetta atricapilla) in Argentina
(Wilson Ornithological Society, 2017-06)
The Black-headed Duck (Heteronetta atricapilla) is a unique interspecific brood parasite among birds where the host species provides parental care for incubation only. Despite this unique system, there are few studies on ...
Flying Steamer-Duck (Tachyeres Patachonicus) egg found in a Kelp Gull (Larus dominicanus) nest in Northwestern PatagoniaHallazgo de un huevo de Pato Vapor Volador (Tachyeres patachonicus) en un nido de Gaviota Cocinera (Larus dominicanus) en Patagonia Noroeste
(Neotropical Ornithological Society, 2015-05)
While conducting fieldwork in Kelp Gull (Larus dominicanus) colonies of Lake Nahuel Huapi islets, we found a Flying Steamer-Duck (Tachyeres patachonicus) egg in a Kelp Gull nest. A camera trap was installed in an attempt ...
Female and male rufous horneros eject shiny cowbird eggs using a mental template of the size of their own eggs
(Elsevier Science, 2020-09)
Hosts of interspecific brood parasites often evolve antiparasitic defences, like the recognition and rejection of parasite's eggs. Most hosts use differences in coloration and maculation to discriminate between their own ...
Innate development of acoustic signals for host parent–offspring recognition in the brood-parasitic Screaming Cowbird Molothrus rufoaxillaris
(Wiley Blackwell Publishing, Inc, 2019-03)
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 ...
Do shiny cowbird females adjust egg pecking behavior according to the level of competition their chicks face in host nests?
(Elsevier Science, 2012-02)
Interspecific brood parasites, like the shiny cowbird (Molothrus bonariensis), lay eggs in nests of other species. Shiny cowbird females peck and puncture eggs when they parasitize host nests. This behavior increases the ...
Can nest predation explain the lack of defenses against cowbird brood parasitism in the Rufous-collared sparrow (Zonotrichia capensis)?¿Puede la depredación de nidos explicar la falta de defensas de Zonotrichia capensis contra el parasitismo de cría de M. Bonariensis?
(American Ornithologists' Union, 2013-07)
Although interspecific avian brood parasitism usually lowers host productivity, some species lack any defense against parasites. We analyzed the effect of parasite egg removal or nest desertion following a parasitism event ...