@article {1178,
	title = {Insular ecology of the red wood ant Formica truncorum  Fabr. II. Distribution, reproductive strategy and competition.},
	journal = {Mitt. Schweiz. Entomol. Ges.},
	volume = {59},
	year = {1986},
	pages = {63-94},
	author = {Rosengren, R. and Cherix, D. and Pamilo, P.}
}
@article {1171,
	title = {Sex ratio strategy as related to queen number, dispersal behavior, and habitat quality in Formica ants (Hymenoptera, Formicidae).},
	journal = {Entomol. Gener.},
	volume = {11},
	year = {1986},
	pages = { 139-151},
	author = {Rosengren, R. and Pamilo, P.}
}
