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Several studies have been carried out on the germination of seeds defecated by lemurs, but the seasonal variation in germination rates and the latent period of seeds of species consumed by Eulemur coronatus have not yet been studied. Two groups of E. coronatus were therefore monitored in order to carry out ex situ germination tests, with the aim of assessing the seasonal variation in the germination rate and the latency period of the seeds of two species consumed (Treculia madagascariensis and Xanthocercis madagascariensis). The focal animal sampling method (Altmann, 1974) was used to collect behavioural data during 2021-2022. The results showed that seed germination rates from fecal matter during the dry season were higher (72.5% and 57.5%) than during the wet season (32.5% and 42.5%) for both species. According to the Cox hazard model, the latent period of fecal seeds is shorter during the dry season for the Treculia madagascariensis species, while for the Xanthocercis madagascariensis species, the latent period of fecal seeds is similar between the dry and wet seasons. The variation in the germination rate and the latent period between the two seasons depends on the species.
