Alimentación de pichones de la paloma Zenaida auriculata

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During 1970 crop samples were taken from nestlings of the eared dove Zenaid auriculata chysauchenia in the eastem plains of Córdoba, Argentine Republic, where this dove has become a serious agricultural pest. Seeds and crop milk are the most important food items. No fruits or animal food were found....

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Autores principales: Bucher, Enrique H., Nores, Manuel
Lenguaje:Español
Publicado: 1973
Acceso en línea:https://hdl.handle.net/20.500.12110/hornero_v011_n03_p209
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:hornero_v011_n03_p209
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spelling todo:hornero_v011_n03_p2092023-10-03T13:45:50Z Alimentación de pichones de la paloma Zenaida auriculata Bucher, Enrique H. Nores, Manuel During 1970 crop samples were taken from nestlings of the eared dove Zenaid auriculata chysauchenia in the eastem plains of Córdoba, Argentine Republic, where this dove has become a serious agricultural pest. Seeds and crop milk are the most important food items. No fruits or animal food were found. During the first days of the nestling's life, crop milk plays an important role, which rapidly decreases afterwards (fig. 1). The seeds of cultivated species are predominant, beeing mainly sorghum, millet, wheat, peanut, sunflower and maize. Important weed seeds are Amaranthus spp. (Amaranthaceae), Chenopodium spp. (Chenopodiaceae), Argemone subfusiformis (Papaveraceae), Setaria pampeana and Echinochloa colonum (Graminae) (table 1). Nestling's crops have more small seeds and less medium and large size seeds than theaverage adult crop contento Large seeds are absent during the first four days of lHe. Differences between adult and nestling food became less and less apparent as the nestling grows (fig. 3). It means that availability of small seeds is necessary during the breeding period, or af least during early of the nestling's life. Adults rearing cruck (as indicated by milk secretion) tend to feed on smaIler food items (p<O,O1) than the rest. Nevertheless, large seeds are also found in their crops in smaller proportions. These data are consistent with the hypothesis that the greater proportion of smaller seeds in the nestling's food is explained by both the deliberate choice hy the parents and some sort of selection during the regurgitating of food from the adult to the chick 1973-11 PDF Español info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar https://hdl.handle.net/20.500.12110/hornero_v011_n03_p209
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language Español
orig_language_str_mv Español
description During 1970 crop samples were taken from nestlings of the eared dove Zenaid auriculata chysauchenia in the eastem plains of Córdoba, Argentine Republic, where this dove has become a serious agricultural pest. Seeds and crop milk are the most important food items. No fruits or animal food were found. During the first days of the nestling's life, crop milk plays an important role, which rapidly decreases afterwards (fig. 1). The seeds of cultivated species are predominant, beeing mainly sorghum, millet, wheat, peanut, sunflower and maize. Important weed seeds are Amaranthus spp. (Amaranthaceae), Chenopodium spp. (Chenopodiaceae), Argemone subfusiformis (Papaveraceae), Setaria pampeana and Echinochloa colonum (Graminae) (table 1). Nestling's crops have more small seeds and less medium and large size seeds than theaverage adult crop contento Large seeds are absent during the first four days of lHe. Differences between adult and nestling food became less and less apparent as the nestling grows (fig. 3). It means that availability of small seeds is necessary during the breeding period, or af least during early of the nestling's life. Adults rearing cruck (as indicated by milk secretion) tend to feed on smaIler food items (p<O,O1) than the rest. Nevertheless, large seeds are also found in their crops in smaller proportions. These data are consistent with the hypothesis that the greater proportion of smaller seeds in the nestling's food is explained by both the deliberate choice hy the parents and some sort of selection during the regurgitating of food from the adult to the chick
author Bucher, Enrique H.
Nores, Manuel
spellingShingle Bucher, Enrique H.
Nores, Manuel
Alimentación de pichones de la paloma Zenaida auriculata
author_facet Bucher, Enrique H.
Nores, Manuel
author_sort Bucher, Enrique H.
title Alimentación de pichones de la paloma Zenaida auriculata
title_short Alimentación de pichones de la paloma Zenaida auriculata
title_full Alimentación de pichones de la paloma Zenaida auriculata
title_fullStr Alimentación de pichones de la paloma Zenaida auriculata
title_full_unstemmed Alimentación de pichones de la paloma Zenaida auriculata
title_sort alimentación de pichones de la paloma zenaida auriculata
publishDate 1973
url https://hdl.handle.net/20.500.12110/hornero_v011_n03_p209
work_keys_str_mv AT bucherenriqueh alimentaciondepichonesdelapalomazenaidaauriculata
AT noresmanuel alimentaciondepichonesdelapalomazenaidaauriculata
_version_ 1807322085857427456

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