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| Format: | Artículo científico |
| Language: | es |
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Universidad de Costa Rica
2015
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| Online Access: | https://www.redalyc.org/articulo.oa?id=44933764019 |
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| _version_ | 1866817122904047616 |
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| author | Dennis Denis Ávila |
| author_facet | Dennis Denis Ávila |
| contents | Variación en el tamaño de los huevos en garzas (Aves: Ardeidae) que anidan en la ciénaga de Birama, Cuba Dennis Denis Ávila Biología ardeids Egg size brood reduction intraclutch variation wading birds breeding Intraclutch egg size variation in birds depends on many ecological factors and on the evolutive history of each species. In wading birds, a trend to smaller eggs with laying order has been described, but comparative reports are scarce. In this study, egg size variation patterns were described for nine Egrets and Heron species nesting in Birama’ Swamp, Cuba. The patterns were described using external dimensions of 3 142 eggs from 1 875 nests of Butorides virescens, Bubulcus ibis, Ardea alba, Nycticorax nycticorax, Nyctanassa violacea and four Egretta species, taken in the field between 1998 and 2006. Results showed that eggs were 4.910% of adult weight and had volume variation coefficients between 69%. There were no general and consistent interspecies relationship between clutch size and egg sizes. Average volumes tend to get smaller with laying order, but it is not statistically detectable in Butorides and Bubulcus . Last egg was between 0.2% and 15% smaller than the first, showing an inverse relationship with it. Intraclutch asymmetry is light in E. thula and fluctuating around null in Bubulcus. Size only predicted laying or hatching order for the last egg, in nests with more than two eggs, with 72.4% of confidence. 2015 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44933764019 es http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.1 Vol.63 |
| format | Artículo científico |
| id | redalyc_44933764019 |
| language | es |
| publishDate | 2015 |
| publisher | Universidad de Costa Rica |
| spellingShingle | Variación en el tamaño de los huevos en garzas (Aves: Ardeidae) que anidan en la ciénaga de Birama, Cuba Dennis Denis Ávila Biología ardeids Egg size brood reduction intraclutch variation wading birds breeding Variación en el tamaño de los huevos en garzas (Aves: Ardeidae) que anidan en la ciénaga de Birama, Cuba Dennis Denis Ávila Biología ardeids Egg size brood reduction intraclutch variation wading birds breeding Intraclutch egg size variation in birds depends on many ecological factors and on the evolutive history of each species. In wading birds, a trend to smaller eggs with laying order has been described, but comparative reports are scarce. In this study, egg size variation patterns were described for nine Egrets and Heron species nesting in Birama’ Swamp, Cuba. The patterns were described using external dimensions of 3 142 eggs from 1 875 nests of Butorides virescens, Bubulcus ibis, Ardea alba, Nycticorax nycticorax, Nyctanassa violacea and four Egretta species, taken in the field between 1998 and 2006. Results showed that eggs were 4.910% of adult weight and had volume variation coefficients between 69%. There were no general and consistent interspecies relationship between clutch size and egg sizes. Average volumes tend to get smaller with laying order, but it is not statistically detectable in Butorides and Bubulcus . Last egg was between 0.2% and 15% smaller than the first, showing an inverse relationship with it. Intraclutch asymmetry is light in E. thula and fluctuating around null in Bubulcus. Size only predicted laying or hatching order for the last egg, in nests with more than two eggs, with 72.4% of confidence. 2015 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44933764019 es http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.1 Vol.63 |
| title | Variación en el tamaño de los huevos en garzas (Aves: Ardeidae) que anidan en la ciénaga de Birama, Cuba |
| topic | Biología ardeids Egg size brood reduction intraclutch variation wading birds breeding |
| url | https://www.redalyc.org/articulo.oa?id=44933764019 |