Results 11 to 20 of about 89,790 (255)
Cooperative breeding and demography of Yellow Cardinal Gubernatrix cristata in Brazil
Revista Brasileira de Ornitologia, 2017 We studied demography, territoriality and social system of the Brazilian population of Yellow Cardinal, Gubernatrix cristata . The study was conducted in the municipality of Barra do Quarai, western Rio Grande do Sul, Brazil, during two breeding seasons (October to February, 2013–2015).
Christian Beier +4 more
openaire +3 more sources
Conservation Genetics, 2017 The yellow cardinal, Gubernatrix cristata, is an endangered passerine from southern South America. Populations are declining due to the loss of their natural habitat, which has caused a fragmented distribution, and the continuous extraction of individuals from the wild, mainly males, to sell them as cage birds.
Marisol Domínguez +5 more
openaire +5 more sources
Hybridization between Yellow-billed Cardinal Paroaria capitata and Red-crested Cardinal P. coronata in southern Argentina [PDF]
Revista Brasileira de Ornitologia, 2019 AbstractThe genus Paroaria is a group of conspicuous songbirds widely distributed in South America that has been studied recently to delimit its species and establish their phylogenetic relationships. Although hybridization has been reported between the most phylogenetically related species of the genus, we here present a case of hybridization between ...
Segura, Luciano Noel +2 more
openaire +3 more sources
Ecological Informatics, 2023 AbstractAudio-based analysis of bird songs has proven to be a valuable practice for the growth of knowledge in the fields of ethology and ecology. In recent years, machine learning techniques applied to audio field recordings of bird calls have yielded successful results in studying population distributions and identification of individuals for their ...
Bocaccio, Hernan +4 more
openaire +2 more sources
Breeding biology of the endangered Yellow Cardinal Gubernatrix cristata in Brazil [PDF]
Revista Brasileira de Ornitologia, 2019 AbstractThe Yellow Cardinal,Gubernatrix cristata, has a small geographic range in Brazil, Uruguay, and Argentina. We studied the natural history of the only known Brazilian population of this “Endangered” species (∼50 individuals), which is socially monogamous and may breed cooperatively.
Christian Beier +1 more
openaire +1 more source
BMC Molecular and Cell Biology, 2020 Background Eye pigmentation genes have been utilized as visible markers for constructing genetic control prototypes in several insect vectors of human disease.
Xuejiao Xu +4 more
doaj +1 more source
Species-Specific Responses of Bird Song Output in the Presence of Drones
Drones, 2021 Drones are now widely used to study wildlife, but their application in the study of bioacoustics is limited. Drones can be used to collect data on bird vocalizations, but an ongoing concern is that noise from drones could change bird vocalization ...
Andrew M. Wilson +4 more
doaj +1 more source
A Classic Maya Mystery of a Medicinal Plant and Maya Hieroglyphs
Heritage, 2020 The Maya employed the k’an |K’AN| glyph in Late Classic (~750 CE) hieroglyphs on murals and polychrome pottery as an adjective meaning precious, yellow.
Jonathan Ferrier +7 more
doaj +1 more source
No difference in variability of unique hue selections and binary hue selections [PDF]
, 2014 If unique hues have special status in phenomenological experience as perceptually pure, it seems reasonable to assume that they are represented more precisely by the visual system than are other colors. Following the method of Malkoc et al. (J. Opt. Soc.
Bosten, J M, Lawrance-Owen, A J
core +1 more source
Cross-modal associations in synaesthesia: vowel colours in the ear of the beholder [PDF]
, 2014 Human speech conveys many forms of information, but for some exceptional individuals (synaesthetes), listening to speech sounds can automatically induce visual percepts such as colours.
Miller, Sam R. +3 more
core +2 more sources