Nest-mate recognition template of guard honeybees ( Apis mellifera ) is modified by wax comb transfer

Vient de paraître R. Chiaradonna and F. Trabattoni (eds.), Physics and Philosophy of Nature in Greek Neoplatonism. Proceedings of the European Science Foundation Exploratory Workshop (Il Ciocco, Castelvecchio Pascoli, June, 22-24, 2006), Philosophia Antiqua, 115, Brill, Leiden and Boston 2009ISBN: 978 90 04 17380 4 -- http://www.brill.nl/default.aspx?partid=210&pid=33073 Sommaire R. Chiaradonna and F. Trabattoni: Introduction M. Rashed: Contre le mouvement rectiligne naturel: Trois adversaire..

Nest-mate recognition template of guard honeybees (Apis mellifera) is modified by wax comb transfer

In recognition, discriminators use sensory information to make decisions. For example, honeybee (Apis mellifera) entrance guards discriminate between nest-mates and intruders by comparing their odours with a template of the colony odour. Comb wax plays a major role in honeybee recognition. We measured the rejection rates of nest-mate and non-nest-mate worker bees by entrance guards before and after a unidirectional transfer of wax comb from a 'comb donor' hive to a 'comb receiver' hive. Our results showed a significant effect that occurred in one direction. Guards in the comb receiver hive became more accepting of non-nest-mates from the comb donor hive (rejection decreased from 70 to 47%); however, guards in the comb donor hive did not become more accepting of bees from the comb receiver hive. These data strongly support the hypothesis that the transfer of wax comb increases the acceptance of non-nest-mates not by changing the odour of the bees, but by changing the template used by guards

Commodification in multiple registers: Child workers, child consumers, and child labor NGOs in India

Using the term ‘commodity’ as an analytic, this chapter considers the persistence of an iconography of victimhood in dominant representations of child labor in India favored by ‘blanket ban’ NGOs. Drawing on a historiography of child labor legislations, dating from nineteenth century Britain, I explore ‘child labor’ as an affective commodity based on its victimhood imagery, which is readily recognized and consumed in global humanitarian markets today. In the context of NGOs in India, such affective representations also perform a particular NGO identity, one that delineates the “uncompromising” abolitionist stance of blanket ban NGOs, in contrast to the more accommodating stance of the Indian state. The affective logics of ‘child labor’ however, do not square well with the desires and aspirations of “real” working children who are economic agents and desiring subjects in their own right