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

Bird 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
openaire   +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)

Parasitology 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
openaire   +2 more sources

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

Bird 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
openaire   +2 more sources

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

Ethology 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.
R.I. Dias   +4 more
openaire   +1 more source

Metabolizable energy in Chinese Tallow fruit for Yellow-rumped Warblers, Northern Cardinals, and American Robins

The Wilson Journal of Ornithology, 2008
Abstract The invasive exotic Chinese tallow tree (Triadica sebifera) produces an abundant fruit crop, which is primarily bird-dispersed. The fruit pulp of tallow is lipid-rich, high in saturated fatty acids, and consumed by many bird species. Long-chained fatty acids can be difficult for many birds to digest and we investigated the ability of tallow ...
Michael J. Baldwin   +3 more
openaire   +1 more source

STEROIDS OF A CHONDROSTEAN: IN-VITRO STEROIDOGENESIS IN YELLOW BODIES ISOLATED FROM KIDNEYS AND ALONG THE POSTERIOR CARDINAL VEINS OF THE AMERICAN ATLANTIC STURGEON, ACIPENSER OXYRHYNCHUS MITCHILL

Journal of Endocrinology, 1970
SUMMARY This report presents direct evidence for steroidogenesis by chondrostean tissue. The enzymes necessary for steroid transformation and cleavage of the cholesterol sidechain are present in yellow bodies isolated from the kidneys and along the posterior cardinal veins of the Atlantic sturgeon, Acipenser oxyrhynchus Mitchill. Yellow
D R, Idler, G B, Sangalang
openaire   +2 more sources

Brood parasitism leads to zero recruitment in the globally endangered Yellow Cardinal Gubernatrix cristata

2020
The Yellow Cardinal Gubernatrix cristata is an ´Endangered´ passerine from southern South America. For the past three years a management plan for Yellow Cardinals has been implemented in Argentina, in which rescued individuals from the illegal cage bird trade were released back into suitable habitats within their population of origin.
Atencio, Melina   +2 more
openaire   +1 more source

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