Tsiory Mampionona Rasoloarijao,^1,2,* Perle Ramavovololona,^1,** Ralalaharisoa Ramamonjisoa,¹ Johanna Clemencet,^3,*** Gérard Lebreton,^2,**** Hélène Delatte<sup>2,*****,******

1</sup>aUniversité d'Antananarivo, Département de Biologie et Ecologie Végétales, Laboratoire de Palynologi
²bCIRAD, UMR PVBMT, Saint Pierre, La Réunion 97410 France
³cUniversité de la Réunion, UMR PVBMT, Av René Cassin, Saint Denis, La Réunion 97715, France

^*TSIORY MAMPIONONA RASOLOARIJAO obtained his MSc from the Department of Biology and Plant Ecology at the University of Antananarivo. He is currently pursuing a PhD between the University of Reunion (France) and the University of Antananarivo (Madagascar) on plant–pollinator interactions in the area of the south-west part of the Indian Ocean.
^**PERLE RAMAVOVOLOLONA is a professor the University of Antananarivo. In 1986 she obtained her PhD in aeropalynology from the University of Antananarivo and began specialising in palynology and immunoallergy in 1998. Her main research interests are the palynology and the ecology of Madagascar.
^***RALALAHARISOA RAMAMONJISOA is an assistant professor at the University of Antananarivo. She received her PhD in 1992 from the University of Antananarivo. Her main research interests are in melissopalynology.
^****JOHANNA CLEMENCET is an assistant professor at The University of Reunion. Her work focuses on evolutionary biology in insular environments, with a particular interest in Apis mellifera unicolor in the south-west Indian Ocean islands and its interactions with the biotic environment (flora and fauna).
^*****CONTACT Hélène Delatte helene.delatte@cirad.fr Supplemental material for this article can be accessed here: https://doi.org/10.1080/01916122.2018.1443980 .
^******GÉRARD LEBRETON is an engineer at the French Agricultural Research Centre for International Development (CIRAD), in the UMR PVBMT unit, based in Réunion. He obtained his Msc at the EPHE of Paris in botany, and has recently specialised in palynology.