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Morphohistochemical characterization of the perivisceral fat body in royal and worker female castes in different ages of Atta sexdens rubropilosa ants (Hymenoptera, Formicidae)
(2006-04-21)
The morphohistochemical study of the fat body in royal and worker castes of Atta sexdens rubropilosa revealed that this tissue is made up of trophocytes and oenocytes, trophocytes being the cells with cytoplasmic inclusions ...
The trade-off between the transmission of chemical cues and parasites: behavioral interactions between leaf-cutting ant workers of different age classes
(Soc Brasileira Entomologia, 2017-01-01)
Social animals are faced with an intriguing dilemma. On the one hand, interactions between individuals are essential to exchange information and to promote cohesion, while on the other hand such interactions carry with ...
Unemployment, Participation and Worker Flows Over the Life-Cycle
(Wiley & Sons, 2015)
We estimate life-cycle transition probabilities among employment, unemployment and inactivity for US workers. We assess the importance of each worker flow to account for participation and unemployment rates over the life ...
Age polyethism in the swarm-founding wasp Metapolybia miltoni (Andena & Carpenter) (Hymenoptera: Vespidae; Polistinae, Epiponini)
(Univ Estadual Feira Santana, 2013-01-01)
In Epiponini division of labor is associated with age polyethism and individual task specialization. We observed worker activities in three colonies of Metapoybia miltoni in Brazil. We analyzed differences of task allocation ...
Worker demography in a large-colony, swarm-founding wasp
(SPRINGER TOKYO, 2011)
Neotropical swarm-founding wasps build nests enclosed in a covering envelope, which makes it difficult to count individual births and deaths. Thus, knowledge of worker demography is very limited for swarm-founding species ...
Morphohistochemical characterization of the perivisceral fat body in royal and worker female castes in different ages of Atta sexdens rubropilosa ants (Hymenoptera, Formicidae)
(2006-04-21)
The morphohistochemical study of the fat body in royal and worker castes of Atta sexdens rubropilosa revealed that this tissue is made up of trophocytes and oenocytes, trophocytes being the cells with cytoplasmic inclusions ...
Temporal polyethism and survivorship of workers of Agelaia pallipes (Hymenoptera, Vespidae, Epiponini)
(2005-04-18)
In this study, known-age workers of Agelaia pallipes (Olivier) were introduced into a colony maintained in the laboratory and the effects of age polyethism on the worker life span were observed. As in other Neotropical ...
Temporal polyethism and survivorship of workers of Agelaia pallipes (Hymenoptera, Vespidae, Epiponini)
(2005-04-18)
In this study, known-age workers of Agelaia pallipes (Olivier) were introduced into a colony maintained in the laboratory and the effects of age polyethism on the worker life span were observed. As in other Neotropical ...
Morphomettic changes on honeybee Apis mellifera L. workers fat body cells after juvenile hormone topic application at emergence
(Pergamon-Elsevier B.V. Ltd, 2008-06-01)
The effect of topical application of juvenile hormone (JH) over the lifetime of worker bees was evaluated in Apis mellifera, by measuring the area of the two cell types, trophocytes and oenocytes, found in the fat body. ...