International Union for the Study of Social Insects (IUSSI2018), August 5-10, 2018 in Guarujá, Brazil.

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Reproductive dominance and patterns of food distribution among nestmates in the primitively eusocial wasp Mischocyttarus cerberus (Polistinae; Mischocytarinii)

Author(s):
Wilson França de Oliveira Neto, Wilson França de Oliveira Neto
Institution(s):
Faculdade de Filosofia Ciências e Letras, Universidade de São Paulo, Ribeirão Preto, Brazil; Faculdade de Filosofia Ciências e Letras, Universidade de São Paulo, Ribeirão Preto, Brazil
Mischocyttarus cerberus is one among the 245 species of wasps of the Tribe Mischocyttarini tribe (Polistinae). These wasps are independent-founders and primitively eusocial, presenting a single open comb and few individuals per colony. The dominance hierarchy establishes the social structure and dynamic of this group, both at the reproductive level, including foraging activity and nourishment. Commonly the dominant female is the first to request the resource at the moment that the forager comes back to the nest. However, it is not well understood if the food distribution pattern between larvae/ adults and adults/adults follow preferably the dominance rank of adult female or there’s an occasional multidirectionality of food sharing. The Social Network analysis application has been growing among behavior studies because it can provide an objective and systematic way to identify and determine central individuals, dominance roles and interactions with the social group. Thus, the aim of this work was to verify in which way the social dynamic and structure of Mischocyttarus cerberus colonies relate with trophic interactions among individuals, for this we are going to use approaches of Social Network analysis. Our preliminary results showed that dominant females received more liquid food from foragers than other lower ranking individuals.
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