1,720,976 research outputs found
A morphometric analysis of intercastes of the slave-making ant Polyergus rufescens (Hymenoptera: Formicidae)
No full textIntercastes of the slave-making ant Polyergus rufescens (Hymenoptera, Formicidae) were morphometrically analyzed and compared with queens and workers castes. Clear cut differences among these three 'morphological' castes were recognized. Results of multivariate analysis showed significant differences in mean size for most morphological characters. On the basis of 15 external features we measured, intercastes were more similar to workers but distinguishable from them by a larger head and a queen-like abdomen (petiole and gaster). Canonical discriminant analysis also indicated this morphological differentiation. Mahalanobis' distances were 21.65 between queens and workers, 20.26 between queens and intercastes, and 6.02 between intercastes and workers
Caratteristiche morfometriche e successo di accoppiamento nella formica schiavista Polyergus rufescens
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Comparison of reproductive strategies and raiding behaviour in facultative and obligatory slave-making ants: the case of Formica sanguinea and Polyergus rufescens
No full textComunicazione chimica durante le razzie del parassita sociale Polyergus rufescens (Hymenoptera, Formicidae)
No full textThe evolution of slavery in ants: comparison between a facultative (Formica sanguinea) and an obligate (Polyergus rufescens) parasite
No full textStrategie di attacco e di difesa durante l’attività di razzia della formica schiavista Polyergus rufescens
No full textSource of sexual pheromones in the slave-making ant Polyergus rufescens (Hymenoptera, Formicidae)
No full textLa comunicazione chimica nelle formiche: recenti acquisizioni su specie parassite e a vita libera
No full textGlandular source of sexual attractants in the Amazon ant Polyergus rufescens (Hymenoptera, Formicidae)
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