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Polyethism within hunters of the ponerine ant Ectatomma ruidum Roger (Hymenoptera, Formicidae)

Por: Schatz, Bertrand [autor/a].
Lachaud, Jean Paul [autor] | Beugnon, Guy [autor].
Tipo de material: Artículo en línea Artículo en línea Tipo de contenido: Texto Tipo de medio: Computadora Tipo de portador: Recurso en líneaOtro título: Polyethism within hunters of the ponerine ant Ectatomma ruidum Roger (Formicidae, Ponerinae)) [Título paralelo].Tema(s): Ectatomma ruidum | Hormigas | Polietismo | Depredación | Hábitos alimentarios | Ecología animalTema(s) en inglés: Ectatomma ruidum | Ants | Polyethism | Predation | Eating habits | Animal ecologyClasificación: AR/595.796 / S2 Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso Nota general: La paginación del PDF: 111-118 En: Insectes Sociaux. Volumen 43, número 2 (June 1996), páginas 111-118. --ISSN: 0020-1812Número de sistema: 54442Resumen:
Inglés

During laboratory experiments, two categories of prey-foraging workers were found in Ectatomma ruidum: stingers and transporters. When numerous live drosophila were offered to the ants, one group of hunters specialized in killing the prey and another in transporting simultaneously the dead drosophila to the nest. Sometimes, there was a transfer of prey by a stinger towards a transporter, after an active soliciting of the transporter by antennation or by using the forelegs. We found high positive correlations between the colony size and the number of ants in each subcaste. A negative correlation existed between the colony size and the proportion of hunters. However, the proportion of workers in the two behavioral subcastes of hunters was stable in spite of differences in colony size. The phylogenetic interest of this type of cooperative predation is discussed

Recurso en línea: http://link.springer.com/article/10.1007%2FBF01242563
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La paginación del PDF: 111-118

Disponible para usuarios de ECOSUR con su clave de acceso

During laboratory experiments, two categories of prey-foraging workers were found in Ectatomma ruidum: stingers and transporters. When numerous live drosophila were offered to the ants, one group of hunters specialized in killing the prey and another in transporting simultaneously the dead drosophila to the nest. Sometimes, there was a transfer of prey by a stinger towards a transporter, after an active soliciting of the transporter by antennation or by using the forelegs. We found high positive correlations between the colony size and the number of ants in each subcaste. A negative correlation existed between the colony size and the proportion of hunters. However, the proportion of workers in the two behavioral subcastes of hunters was stable in spite of differences in colony size. The phylogenetic interest of this type of cooperative predation is discussed eng

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