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dc.contributor.author
Marone, Luis
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dc.contributor.author
Camín, Sergio Ramón
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dc.date.available
2023-09-11T17:45:26Z
dc.date.issued
2022-08
dc.identifier.citation
Marone, Luis; Camín, Sergio Ramón; Seed preferences suggest a high vulnerability of the Yellow Cardinal ( Gubernatrix cristata ) to habitat degradation in Argentina; Taylor & Francis; Emu; 122; 3-4; 8-2022; 208-215
dc.identifier.issn
0158-4197
dc.identifier.uri
http://hdl.handle.net/11336/211146
dc.description.abstract
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 illegal trafficking in the Monte desert, Mendoza, Argentina, to experimentally assess their seed preferences by using two different seed sets to test the hypotheses that (1) the birds prefer medium-sized and large seeds of native grass species, which are the seeds that are most reduced by cattle grazing, and (2) birds are not able to handle and consume the large seeds typical of non-native crop species. Choice and non-choice experiments were combined to assess the seed preferences. In the experiments with eight native seeds <1 mg (4 grasses, 4 forbs) the birds preferred the medium-sized and large grass seeds over the forb seeds. In the experiment with eight grass seeds (4 native, 4 commercial; 0.23–33 mg) birds had difficulty in handling the heaviest seeds, with a threshold between 7 and 25 mg. This difficulty might explain the positive association of the Yellow Cardinal with wild savannahs and xerophytic shrubland but not with agricultural fields, since common crops have large seeds (40–350 mg). Given the species affinity for habitats that are often used for livestock ranching, overgrazing should be included as a source of habitat degradation due to the reduction in key food resources.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BIRD CONSERVATION
dc.subject
ENDANGERED SPECIES
dc.subject
FEEDING ECOLOGY
dc.subject
GRASS SEEDS
dc.subject
GUBERNATRIX CRISTATA
dc.subject
HABITAT DEGRADATION
dc.subject.classification
Ecología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Seed preferences suggest a high vulnerability of the Yellow Cardinal ( Gubernatrix cristata ) to habitat degradation in Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-07-04T14:22:12Z
dc.journal.volume
122
dc.journal.number
3-4
dc.journal.pagination
208-215
dc.journal.pais
Australia
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dc.description.fil
Fil: Marone, Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Provincia de Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Universidad Nacional de Cuyo. Instituto Argentino de Investigaciones de las Zonas Áridas; Argentina
dc.description.fil
Fil: Camín, Sergio Ramón. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Provincia de Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Universidad Nacional de Cuyo. Instituto Argentino de Investigaciones de las Zonas Áridas; Argentina
dc.journal.title
Emu
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/01584197.2022.2112696
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/01584197.2022.2112696
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