Plant and lemur traits
To test our coevolutionary hypothesis, we used a functional trait approach. For plants, we obtained information on traits related to fruit-consumption (fruit length and width, seed length and width, number of seeds per fruit and diaspore color) from Albert-Daviaud et al. (2021) (SM Table S2). For lemurs, we obtained information on morphological traits known to be related to food consumption (body mass, body length, and tail length) (Mittermeier et al. 2010; SM Table S3).
We also gathered complementary information on lemur activity patterns and feeding guilds, which are related to feeding behavior (Mittermeier et al. 2010; Razafindratsima et al. 2018; Galán-Acedo et al. 2019; SM Table S3), and on plant traits that may be related to selection by lemurs according to interaction types: frugivory, folivory and florivory. Full description of plant traits is available in Table 1 and the complete list of traits is available in the Table S4. The complementary information on fruit, leaf and flower traits were available for a restricted number of plant species for which we had information on lemur-plant interactions. Thus, this complementary information was used only to test for their possible influence on the contribution to the cophylogenetic signal according to each type of interaction they are related (see ‘Individual contributions to the CS’ section below).
Table 1 - Full description of plant traits