Traits of recalcitrant seeds in a semi-deciduous tropical forest in Panamá: some ecological implications

摘要: Summary 1We used cross-species and phylogenetic analyses to compare seed traits of 36 species with desiccation-sensitive 189 desiccation-tolerant seeds from a semi-deciduous forest in Panama. 2When correcting for dependence between taxa, the were significantly larger than (3383 vs 283 mg) typically shed during wet (as opposed dry) season. Both presumably reduce rate drying hence risk desiccation-induced mortality species. 3Growing-house germination trials simulated understorey canopy gap environments revealed that germinated most rapidly. Additionally, on proportion basis, allocated less resources physical defences (endocarp and/or testa) which may partially facilitate rapid germination. relationships significant when mass. 4Our results suggest that, large-seeded will dry slowly, desiccation sensitivity be advantageous. Rapid duration exposure predation, low investment defence means per unit mass, are more efficient use provisioning.