Abstract:
:Altruism in social insects has evolved between closely related full-siblings. It is therefore of considerable interest why some groups have secondarily evolved low within-colony relatedness, which in turn affects the relatedness incentives of within-colony cooperation and conflict. The highest queen mating frequencies, and therefore among the lowest degrees of colony relatedness, occur in Apis honeybees and army ants of the subfamilies Aenictinae, Ecitoninae, and Dorylinae, suggesting that common life history features such as reproduction by colony fission and male biased numerical sex-ratios have convergently shaped these mating systems. Here we show that ponerine army ants of the genus Simopelta, which are distantly related but similar in general biology to other army ants, have strictly monandrous queens. Preliminary data suggest that workers reproduce in queenright colonies, which is in sharp contrast to other army ants. We hypothesize that differences in mature colony size and social complexity may explain these striking discrepancies.
journal_name
Mol Ecoljournal_title
Molecular ecologyauthors
Kronauer DJ,O'Donnell S,Boomsma JJ,Pierce NEdoi
10.1111/j.1365-294X.2010.04945.xsubject
Has Abstractpub_date
2011-01-01 00:00:00pages
420-8issue
2eissn
0962-1083issn
1365-294Xjournal_volume
20pub_type
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