Article (Scientific journals)
Phylogeny and host-plant evolution in Melittidae s.l. (Hymenoptera: Apoidea)
Michez, Denis; Patiny, Sébastien; Rasmont, Pierre et al.
2008In Apidologie, 39, p. 146-162
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Abstract :
[en] Bees and the angiosperms they pollinate have developed intimate and often complex interactions over the past 100 million years. As in other insect-plant interactions, host-plant specificity is variable among taxa. While many solitary bee species display an obvious preference for a narrow spectrum of host-plants (oligolecty), others regularly visit a diversified array of pollen hosts (polylecty). Few studies have examined the patterns of host-plant associations in bees using well-resolved phylogenies at the species level combined with accurate and quantitative data on host-plant preferences. In this study, we examined the evolution of bee-plant relationships in several genera of specialist (oligolectic) bees. We used the Melittidae s.l. as a model taxon by mapping the preferred pollen hosts onto species-level phylogenies to investigate the frequency and pattern of host-plant switching. Our results suggest that host-plant associations are maintained over time in many lineages, but that host switches to unrelated plant families are also common. We find some evidence that host-switches occur more frequently to morphologically similar, rather than closely-related, host-plants suggesting that floral morphology plays a key role in host-plant evolution in bees.
Disciplines :
Zoology
Author, co-author :
Michez, Denis  ;  Université de Mons > Faculté des Sciences > Zoologie
Patiny, Sébastien
Rasmont, Pierre ;  Université de Mons > Faculté des Sciences > Service de Zoologie
Timmermann, K.
Verrecken, N.
Language :
English
Title :
Phylogeny and host-plant evolution in Melittidae s.l. (Hymenoptera: Apoidea)
Publication date :
01 January 2008
Journal title :
Apidologie
ISSN :
0044-8435
Publisher :
Springer, Germany
Volume :
39
Pages :
146-162
Peer reviewed :
Peer Reviewed verified by ORBi
Research unit :
S869 - Zoologie
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