Seed Spitting and Seed Swallowing By Wild Orang-Utans (Pongo Pygmaeus Morion) In Sabah, Malaysia

Wild orang,utans (Pona, ptgnaeus moio) studied at the "KirabatangarOrang-utan Conse ation project", Sabah, Malaysia, are mainly frugivorous. They are regularly observed ro swallow large seeds (length longer than five rnm) ftom 37 different plant genera and to spit large seeds ftom 27 plant genera. For rkee of these genera, we compared the time to first germination, the germination success, the 507, gemination time and s€€dling mortaliry of seeds that were spat out, swallowed or left unprocessed by orang-utans. Our results show that mean time from planting ro germination was shorter and seed ge... Mehr ...