Abstract:
:In social insects, the emergence of multiple queening is linked to changes in a suite of traits such as the reproductive life span of queens, mating patterns and population structure. We investigated queen turnover, colony longevity, spatial distribution patterns and genetic differentiation in a population of the socially polymorphic ant Formica fusca. Genetic differentiation between the social forms was absent, and mating patterns were similar in the two forms. The spatial distribution of single- and multi-queen colonies indicated an absence of colony reproduction by budding in both colony types. However, the rate of queen supersedure was high in multi-queen colonies and absent in single-queen ones. The social structure of colonies remained stable across years, but colony mortality did not differ between the two social forms. These results imply that differences between social types may appear and persist also in sympatry, and that these differences may occur in some traits, but not others, despite the presence of homogenizing gene flow.
journal_name
J Evol Bioljournal_title
Journal of evolutionary biologyauthors
Bargum K,Helanterä H,Sundström Ldoi
10.1111/j.1420-9101.2007.01345.xsubject
Has Abstractpub_date
2007-07-01 00:00:00pages
1351-60issue
4eissn
1010-061Xissn
1420-9101pii
JEB1345journal_volume
20pub_type
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