TY  - JOUR
AU  - Chartier, M.
AU  - Pélozuelo, L.
AU  - Gibernau, M.
PY  - 2011//
TI  - Do floral odor profiles geographically vary with the degree of specificity for pollinators? Investigation in two sapromyophilous Arum species (Araceae)
T2  - Ann. Soc. Entomol. Fr.
JO  - Annales de la Societe Entomologique de France
SP  - 71
EP  - 77
VL  - 47
IS  - 1-2
KW  - Arum italicum
KW  - Arum maculatum
KW  - Floral scent
KW  - Psychodidae
KW  - Specificity
N2  - We compared floral odour profiles among populations of two Arum species which show different degrees of specificity for their fly pollinators. Insects were collected from inflorescences in four populations of Arum italicum and two populations of Arum maculatum. In six Arum populations, we compared inflorescences odour profiles collected by Solid Phase Micro Extraction (SPME) and analysed by gas chromatography. We confirmed that from a pollination point of view, A. italicum is an opportunist species, as it is mainly pollinated by insects of the families Psychodidae, Chironomidae and Sciaridae, whereas A. maculatum is a specialist species, as it is 90% pollinated by Psychodidae. In all populations, Arum italicum was less attractive to pollinators than Arum maculatum. Floral odour profiles of A. italicum were not geographically structured among populations, suggesting a high gene flow or adaptation to a fluctuant guild of pollinators. On the contrary, odour profiles of A. maculatum varied between the two populations studied suggesting a lower gene flow or adaptation to different local pollinator preferences.
SN  - 00379271 (Issn)
UR  - http://www.scopus.com/inward/record.url?eid=2-s2.0-80053959667&partnerID=40&md5=2a5c07578e8b1234423a5fc37f1ff27d
N1  - Export Date: 26 October 2011; Source: Scopus; Language of Original Document: English; Correspondence Address: Chartier, M.; Université Paul Sabatier, Laboratoire Evolution and Diversité Biologique (UMR 5174), Bât. 4R3-B2, F-31062 Toulouse cedex 9, France; email: chartier.marion@gmail.com
ID  - Chartier_etal2011
ER  -