Results 231 to 240 of about 89,535 (262)

Range contraction and conservation of the endangered Yellow Cardinal

open access: closedJournal for Nature Conservation, 2019
Fil: Reales, Cesar Fabricio. Provincia de Entre Rios. Centro de Investigaciones Cientificas y Transferencia de Tecnologia a la Produccion. Universidad Autonoma de Entre Rios. Centro de Investigaciones Cientificas y Transferencia de Tecnologia a la Produccion. Consejo Nacional de Investigaciones Cientificas y Tecnicas.
Fabricio Reales   +3 more
exaly   +5 more sources

Genetic assignment and monitoring of yellow cardinals

open access: closedThe Journal of Wildlife Management, 2019
ABSTRACTThe yellow cardinal (Gubernatrix cristata) is a passerine bird endemic to southern South America. At present, the species is threatened with extinction, in part because of the capture of wild birds to supply the illegal caged‐bird market. Previous genetic evidence supports the existence of 3 management units for the species in Argentina, where ...
Marisol Domínguez   +4 more
exaly   +5 more sources

Family group structure of the endangered Yellow Cardinal (Gubernatrix cristata)

open access: closedAvian Biology Research, 2023
The monogamous mating system, where a male and a female constitute the reproductive unit and share the parental care, predominates among bird reproductive strategies. However, there are also other mating systems with diverse parental care roles which may have implications for population breeding success and be relevant for their management and ...
María Emilia Rebollo   +11 more
openalex   +2 more sources

A citizen science survey discloses the current distribution of the endangered Yellow CardinalGubernatrix cristatain Argentina

open access: closedBird Conservation International, 2020
SummaryThe Yellow CardinalGubernatrix cristatais a globally endangered passerine from the southern cone of South America. Because of its conspicuous plumage and very attractive song, it suffers considerably from illegal pet trade. The largest remaining populations are found in Argentina, but no coordinated efforts have been made thus far to understand ...
Marisol Domínguez   +18 more
openalex   +3 more sources

Yellow Cardinal (Gubernatrix cristata) males respond more strongly to local than to foreign dialects

open access: closedIbis, 2023
Bird song is a culturally transmitted behavioural trait strongly tied to territory defence and mate attraction in oscine passerines. Divergent song variations can appear in different populations of the same species as a consequence of multiple factors generating geographically distinct songs also termed dialects. Most studies show that males react more
Pablo Andrés Fracas   +3 more
openalex   +3 more sources

Genetic diversity in captive Yellow Cardinals (Gubernatrix cristata) from Southern Brazil: implications for the management and conservation of an endangered species

open access: closedJournal of Ornithology, 2021
Yellow Cardinal is an Endangered Species. Its populations are in constant decline due to habitat reduction and loss and illegal capture. There are approximately 50 free-living animals in the south of Brazil (state of Rio Grande do Sul), but estimates indicate more than 1000 in captivity.
Sandra Eloisa Bülau   +3 more
openalex   +2 more sources

Blood parasites of passerines in the Brazilian Pampas and their implications for a potential population supplementation program for the endangered Yellow Cardinal (Gubernatrix cristata)

open access: closedParasitology Research, 2022
Espinilho savanna ("seasonal steppe savanna") is a unique vegetation formation of the Pampas biome that is found near the tri-border of Brazil, Uruguay, and Argentina. The Yellow Cardinal (Gubernatrix cristata) is a flagship species of this ecosystem, but it is classified as "critically endangered" in Brazil due to habitat loss and poaching for the ...
Bianca Ressetti da Silva   +9 more
openalex   +3 more sources

Seed preferences suggest a high vulnerability of the Yellow Cardinal (Gubernatrix cristata) to habitat degradation in Argentina

open access: closedEmu - Austral Ornithology, 2022
The Yellow Cardinal is a globally endangered species endemic of southern South America. Knowledge of its general biology has increased in recent years, but its feeding ecology is less well-known. Assessing the feeding ecology of endangered species imposes ethical dilemmas, and we therefore took advantage of Yellow Cardinals rescued by rangers from ...
Luis Marone, Sergio R. Camín
openalex   +3 more sources

Occurrence patterns of the endangered Yellow Cardinal Gubernatrix cristata in north-east Argentina: only in savannahs and at sites away from roads

open access: closedBird Conservation International, 2022
Summary The endangered Yellow Cardinal Gubernatrix cristata is under pressure from habitat loss and from capturing for the cage bird trade. In north-east Argentina it is known to be associated with the Espinal ecoregion, but no information was available on habitat selection within this ecoregion.
Fabricio Reales   +3 more
openalex   +3 more sources

Plumage coloration, body condition and immunological status in Yellow-billed Cardinals (Paroaria capitata)

open access: closedEthology Ecology & Evolution, 2015
Plumage coloration deriving from carotenoid and melanin pigments can be a quality signal in birds, and can be under conspecific inspection in social interactions. For example, parasite load and immune system status can be inferred through plumage color intensity, and can influence the choice of sexual partners.
Raphael Igor Dias   +4 more
openalex   +2 more sources

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