Los huevos falsos (SAGs) facilitan el comportamiento social de emergencia en las crías de la tortuga laúd Dermochelys coriacea(Testudines: Dermochelyidae)
Guardado en:
| Autores: | , , , |
|---|---|
| Formato: | artículo original |
| Estado: | Versión publicada |
| Fecha de Publicación: | 2010 |
| Descripción: | Hatchling emergence to the beach surface from deep sand nests occurs without parental care. Social behaviour among siblings is crucial to overcome this first challenge in sea turtles life. This study, carried out at the Caribbean coast of Colombia, describes the emergence social behaviour of hatchlings from eight nests, and assess the nests translocation effects on temporal patterns of emergence. For the first time, we propose that space released by dehydration of shelled albumen globes (SAGs) at the top of the clutch, might be a reproductive advantage, while facilitating neonates to group together in a very limited space, and favouring the synchrony of emergence. The mean time of groups emergence was of 3.3 days, varying between 1 and 6 days. We found that relocation of the nests did not significantly affect the temporal pattern of emergence, which was mainly nocturnal (77.7% of natural nests and 81.7% of translocated ones). The maximum number of emergences to the surface occurred at the lowest air temperatures (22:00h-06:00h). The selective advantage of this pattern is probably related to the greater rate of predation and mortality by hyper-thermia observed during the day. |
| País: | Portal de Revistas UCR |
| Institución: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Lenguaje: | Español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/5256 |
| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/5256 |
| Palabra clave: | playas tropicales de anidación tortuga laúd comportamiento de las crías supervivencia éxito de la emergencia SAG tortugas marinas tropical nesting beaches leatherback hatchlings behaviour survival emergence success SAGs sea turtles |