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Patrick Kennedy, University of Bristol

A blog about research, fieldwork, and trying not to get stung by big tropical wasps too often

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The anatomy of power (in wasps...)

2/23/2016

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Ever wondered what a God's-eye-view of civil war looks like? No, neither have I, but I have wondered about something similar - a God's-eye-view of civil war within wasp colonies. In French Guiana last year, I did exhaustive behavioural analyses of the 'queen struggle' (the struggle for power over the colony that takes place amongst the surviving workers once the queen dies), all part of an experiment to test some intriguing hypotheses we have about wasp dominance behaviour. 

Undergrad students Sinead Godson and Neil McIvor back in Bristol have been watching reams of video footage of this power struggle played out on two of my nests, and have produced fascinating projects using Elo rankings (the ranking system used in chess) to tackle questions of their own about these colonies. I'm currently working through each of my colonies to test my hypotheses. Using raw data from Sinead's work, I've plotted the dominance interactions between the wasps of one of the colonies from Sinnamary below. The colours refer to particular external information about the wasps - a categorisation system that will allow me to tease apart the behaviours.

So, if you want to know what a God's-eye-view of civil war (in wasps) looks like, it looks a little bit like this:
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Dominance interaction network for the queen struggle on a single colony. Nodes denote individual wasps, size denotes relative degree. Arrows denote direction of dominance interaction. Raw data for this particular colony came from the excellent video analysis work by Sinead and Neil.
Watch this space as we go deeper into the social struggles of life on a primitively-eusocial wasp colony!
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    Hi! I'm Patrick - an early-career postdoc in behavioural ecology. I completed my PhD in 2019, focused on Polistes paper wasps in South and Central America. I'm currently a Marie Skłodowska-Curie Fellow and Simons Society Junior Fellow in the Rubenstein Lab at Columbia University (New York) and the ​Radford Lab at the University of Bristol (UK), looking at the social behaviour and evolution of Africa's incredible wasps! I'm always keen to get involved in outreach to spread the word about these amazing animals.

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