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dc.contributor.author
Marinero, Nancy Veronica
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dc.contributor.author
Navarro, Joaquin Luis
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dc.contributor.author
Martella, Mónica B.
dc.date.available
2021-09-17T20:36:08Z
dc.date.issued
2020-12
dc.identifier.citation
Marinero, Nancy Veronica; Navarro, Joaquin Luis; Martella, Mónica B.; Foraging habitat preferences of a selective herbivorous bird, the Puna Rhea Rhea tarapacencis in the desert Puna, midwestern Argentina; Polish Academy of Sciences. Museum and Institute of Zoology; Acta Ornithologica; 55; 2; 12-2020; 165-173
dc.identifier.issn
0001-6454
dc.identifier.uri
http://hdl.handle.net/11336/140778
dc.description.abstract
In herbivores, habitat preference is influenced by resource availability, which is most evident in desert ecosystems. The desert puna is a South American environment dominated by grassy steppes with local grassy cushion plants associated with moist soil conditions, which form the habitat called 'vegas'. In this environment, Puna Rhea Rhea tarapacencis has a strongly selective foraging strategy towards plant species that are in low abundance but that exhibit low contents of secondary compounds, fiber, or both. This contrasts with other generalist herbivores of arid environments, which prefer plant species with high fiber content and are highly abundant. We determined habitat use by Rheas in three habitat types: foothills, valley and vegas; and provided evidence of their feeding habitat preferences. From 2011 to 2014, we estimated density of birds and environmental variables such as total plant cover and abundance of total food, preferred foods and non-preferred foods. In particular, the density was estimated indirectly based on counting and collecting feces of the birds in transects. We analyzed the effect of the habitat type and environment variables on bird density; and compared the environmental variables among habitats. Puna Rheas used the three habitats, but fecal records were very scarce in vegas. The density was higher in foothills than in the valley (0.45 and 0.01 inds/km2, respectively), increased with higher abundance of the preferred foods and declined with increased non-preferred foods. The foothills were preferred as they had the highest abundance of the preferred foods and the non-preferred foods were similarly abundant in foothills and valley. The vegas had the highest total plant cover and the lowest abundance of all food species consumed by the Rheas. Therefore, the abundance of preferred foods, which have the best nutritional quality, represents a good predictor of habitat preference and, possibly, an essential resource during the life cycle of the Puna Rhea.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Polish Academy of Sciences. Museum and Institute of Zoology
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights
Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
FOOD AVAILABILITY
dc.subject
HABITAT PREFERENCE
dc.subject
PUNA
dc.subject
PUNA RHEA
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
Foraging habitat preferences of a selective herbivorous bird, the Puna Rhea Rhea tarapacencis in the desert Puna, midwestern 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
2021-09-06T15:39:00Z
dc.journal.volume
55
dc.journal.number
2
dc.journal.pagination
165-173
dc.journal.pais
Polonia
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dc.journal.ciudad
Warszawa, POLAND
dc.description.fil
Fil: Marinero, Nancy Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Centro de Investigaciones de la Geosfera y Biosfera. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones de la Geosfera y Biosfera; Argentina
dc.description.fil
Fil: Navarro, Joaquin Luis. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Zoología Aplicada; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina
dc.description.fil
Fil: Martella, Mónica B.. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Zoología Aplicada; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina
dc.journal.title
Acta Ornithologica
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3161/00016454AO2020.55.2.003
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://bioone.org/journals/acta-ornithologica/volume-55/issue-2
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