Paris-Sud

P1090494

frugivory in the Atlantic rainforest, Brazil

I am currently doing a postdoc in the Sauquet lab at the Université Paris-Sud. In collaboration with Daniel Kissling, Hélène Morlon, Thomas Couvreur, Lars Chatrou and Hervé Sauquet, I study “Frugivory, functional traits and the diversification of a tropical angiosperm family: Annonaceae (Magnoliales)”.

For a 1 minute summary of the project- watch this video.

In short –

Frugivory (i.e. fruit-eating and seed dispersal by animals) is ubiquitous in tropical ecosystems, but the role that frugivores have played in the macroevolution of species-rich tropical plant families remains largely unexplored. This project will investigate how plant traits relevant to frugivory (e.g. fruit size, fruit color, fruit shape, understory/canopy growth form, etc.) are distributed within the angiosperm family of custard apples (Annonaceae), how this relates to diversification rates, and whether and how it coincides with the global biogeographic distribution of vertebrate frugivores (birds, bats, primates, other frugivorous mammals) and their ecological traits (e.g. diet specialization, body size, flight ability, etc.). Annonaceae are particularly suitable because they are well studied, species-rich (ca. 2400 species), characteristic in all tropical rainforests, and dispersed by most groups of vertebrate seed dispersers. Using a phylogenetic framework and functional trait and species distribution data we will test (i) how fruit trait variability relates to phylogeny and other aspects of plant morphology (e.g. leaf size, plant height, growth form, floral traits) and animal dispersers and their traits, (ii) to what extent interaction-relevant plant traits are related to diversification rates, and (iii) whether geographic variability in fruit traits correlates with the biogeographic distribution of animal dispersers and their traits.

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