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Antiparasitic defenses in hosts of South American cowbirds
(China Ornithological Society, 2013-06)
The cowbirds (Molothrus, Icteridae) are a monophyletic group that includes five extant brood-parasitic species. The Screaming (M. rufoaxillaris), Giant (M. oryzivorus) and Shiny (M. bonariensis) cowbirds range mostly in ...
Red-crested Cardinals use color and width as cues to reject Shiny Cowbird eggs
(American Ornithologists' Union, 2016-04)
Como parte del proceso coevolutivo entre los parásitos de cría y sus hospedadores, estos últimos han desarrollado diferentes estrategias para discriminar y rechazar los huevos parásitos. Este proceso de reconocimiento y ...
Statistical power to detect multiple paternity in populations of highly fertile species: how many females and how many offspring should be sampled?
(2017)
One of the central issues of behavioral ecology focuses on the probability of detecting multiple paternity in a scenario of polygamy. The main problem for this kind of analysis arises in species with large number of offspring ...
Is the number of antennal plate organs (sensilla placodea) greater in hygienic than in non-hygienic Africanized honey bees?
(2003-12-01)
Hygienic behavior is a desirable trait in honey bees (Apis mellifera L.), as hygienic bees quickly remove diseased brood, intermpting the infectious cycle. Hygienic lines of honey bees appear to be more sensitive to the ...
Is the number of antennal plate organs (sensilla placodea) greater in hygienic than in non-hygienic Africanized honey bees?
(2003-12-01)
Hygienic behavior is a desirable trait in honey bees (Apis mellifera L.), as hygienic bees quickly remove diseased brood, intermpting the infectious cycle. Hygienic lines of honey bees appear to be more sensitive to the ...
Sex determination by morphometry of adult White-crested Elaenia (Elaenia albiceps chilensis)
(Sociedad Brasileira de Ornitologia, 2015-02)
White-crested Elaenia (Elaenia albiceps chilensis) is a Neotropical austral migrant that is sexually monomorphic in plumage. We first determined whether the brood patch and cloacal protuberance are good indicators of an ...