Reproduction of Cochlearius cochlearius (boat-billed heron) and Butorides virescens (green-backed heron) in La Manzanilla, Jalisco, Mexico

Reproduction of Cochlearius cochlearius (boat-billed heron) and Butorides virescens (green-backed heron) in La Manzanilla, Jalisco, Mexico

Reproduction of the herons Cochlearius cochlearius (boat-billed heron) and Butorides virescens (green-backed heron) was recorded for La Manzanilla estuary, Jalisco, Mexico, from April to August 1997. Two breeding sites were studied: site A presented 11 nests of C. cochlearius (54.5% were reused) and...

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Autores principales: Hernández-Vázquez, S, Fernández-Acevez, GJ
Formato: Online
Lenguaje:eng
Publicado: Iniversidad Autónoma de Baja California 1999
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/660
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spelling oai:cienciasmarinas.com.mx:article-6602019-05-22T16:47:01Z Reproduction of Cochlearius cochlearius (boat-billed heron) and Butorides virescens (green-backed heron) in La Manzanilla, Jalisco, Mexico Reproducción de Cochlearius cochlearius (Garza cucharón) y Butorides virescens (Garza verde) en La Manzanilla, Jalisco, México Hernández-Vázquez, S Fernández-Acevez, GJ Cochlearius cochlearius Butorides virescens herons nesting Jalisco Cochlearius cochlearius Butorides virescens ardeidos anidacion Jalisco Reproduction of the herons Cochlearius cochlearius (boat-billed heron) and Butorides virescens (green-backed heron) was recorded for La Manzanilla estuary, Jalisco, Mexico, from April to August 1997. Two breeding sites were studied: site A presented 11 nests of C. cochlearius (54.5% were reused) and 16 nests of B. virescens (6.2% were reused); site B exhibited 8 nests of C. cochlearius and 22 nests of B. virescens (13.6% were reused). Mean height of nests of C. cochlearius was higher (308.42 ± 23.81 cm) than that of B. virescens (115.13 ± 4.73 cm). Clutch size of B. virescens (2.71 ± 0.08) was significantly larger than that of C. cochlearius (1.88 ± 0.12). Mean egg volume of B. virescens at site A (18.02 ± 0.19 cm3) was larger than the volume at site B (16.95 ± 0.30 cm3). The eggs of C. cochlearius (35.01 ± 1.04 cm3) were almost twice the size of those of B. virescens. The first nesting species was C. cochlearius, which exhibited a breeding period from April to August and an incubation period of 20 days. The breeding period of B. virescens was shorter and more homogeneous, from May to July, with a mean incubation period of 19.4 days. The breeding success estimated for both species fluctuated between 50 and 87%; the highest values were associated with viability and the lowest with flying success. Se registra la reproducción de las garzas Cochlearius cochlearius (garza cucharón) y Butorides virescens (garza verde) en el estero La Manzanilla, Jalisco, México, de abril a agosto de 1997. Se observaron dos sitios de anidación: el sitio A presentó 11 nidos de C. cochlearius (54.5% reutilizados) y 16 de B. virescens (6.2% reutilizados); el sitio B exhibió 8 nidos de C. cochlearius y 22 nidos de B. virescens (13.6% reutilizados). La altura promedio del nido de C. cochlearius fue mayor (308.42 ± 23.81 cm) que la de B. virescens (115.13 ± 4.73 cm). El tamaño promedio de la nidada de B. virescens (2.71 ± 0.08) fue significativamente mayor que el de C. cochlearius (1.88 ± 0.12). El volumen promedio de los huevos de B. virescens en el sitio A (18.02 ± 0.19 cm³) fue mayor que en el sitio B (16.95 ± 0.30 cm³). Los huevos de C. cochlearius (35.01 ± 1.04 cm³) fueron casi el doble de grandes que los de B. virescens. La primer especie anidante fue C. cochlearius, cuyo periodo reproductivo se extendió de finales de abril a agosto, presentando un tiempo promedio de incubación de 20 días. Para B. virescens, el periodo reproductivo fue más compacto y homogéneo, extendiéndose de mayo a julio, con un tiempo promedio de incubación de 19.4 días. El éxito reproductivo estimado para ambas especies fluctuó entre 50 y 87%, correspondiendo el valor más alto a viabilidad y el más bajo a éxito a volantón. Iniversidad Autónoma de Baja California 1999-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/660 10.7773/cm.v25i2.660 Ciencias Marinas; Vol. 25 No. 2 (1999); 277-291 Ciencias Marinas; Vol. 25 Núm. 2 (1999); 277-291 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/660/590
institution Ciencias Marinas
collection OJS
language eng
format Online
author Hernández-Vázquez, S
Fernández-Acevez, GJ
spellingShingle Hernández-Vázquez, S
Fernández-Acevez, GJ
Reproduction of Cochlearius cochlearius (boat-billed heron) and Butorides virescens (green-backed heron) in La Manzanilla, Jalisco, Mexico
author_facet Hernández-Vázquez, S
Fernández-Acevez, GJ
author_sort Hernández-Vázquez, S
title Reproduction of Cochlearius cochlearius (boat-billed heron) and Butorides virescens (green-backed heron) in La Manzanilla, Jalisco, Mexico
title_short Reproduction of Cochlearius cochlearius (boat-billed heron) and Butorides virescens (green-backed heron) in La Manzanilla, Jalisco, Mexico
title_full Reproduction of Cochlearius cochlearius (boat-billed heron) and Butorides virescens (green-backed heron) in La Manzanilla, Jalisco, Mexico
title_fullStr Reproduction of Cochlearius cochlearius (boat-billed heron) and Butorides virescens (green-backed heron) in La Manzanilla, Jalisco, Mexico
title_full_unstemmed Reproduction of Cochlearius cochlearius (boat-billed heron) and Butorides virescens (green-backed heron) in La Manzanilla, Jalisco, Mexico
title_sort reproduction of cochlearius cochlearius (boat-billed heron) and butorides virescens (green-backed heron) in la manzanilla, jalisco, mexico
description Reproduction of the herons Cochlearius cochlearius (boat-billed heron) and Butorides virescens (green-backed heron) was recorded for La Manzanilla estuary, Jalisco, Mexico, from April to August 1997. Two breeding sites were studied: site A presented 11 nests of C. cochlearius (54.5% were reused) and 16 nests of B. virescens (6.2% were reused); site B exhibited 8 nests of C. cochlearius and 22 nests of B. virescens (13.6% were reused). Mean height of nests of C. cochlearius was higher (308.42 ± 23.81 cm) than that of B. virescens (115.13 ± 4.73 cm). Clutch size of B. virescens (2.71 ± 0.08) was significantly larger than that of C. cochlearius (1.88 ± 0.12). Mean egg volume of B. virescens at site A (18.02 ± 0.19 cm3) was larger than the volume at site B (16.95 ± 0.30 cm3). The eggs of C. cochlearius (35.01 ± 1.04 cm3) were almost twice the size of those of B. virescens. The first nesting species was C. cochlearius, which exhibited a breeding period from April to August and an incubation period of 20 days. The breeding period of B. virescens was shorter and more homogeneous, from May to July, with a mean incubation period of 19.4 days. The breeding success estimated for both species fluctuated between 50 and 87%; the highest values were associated with viability and the lowest with flying success.
publisher Iniversidad Autónoma de Baja California
publishDate 1999
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/660
_version_ 1715723995338244096

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