Testing mechanisms of coexistence among two species of frugivorous primates

摘要: 1. We examined mechanisms of coexistence between two congeneric species frugivorous primates, the blue monkey (Cercopithecus mitis) and red-tailed (C. ascanius). 2. used giving-up densities (the amount food which animals leave in a patch) fruit trees to measure foraging efficiency evaluate possible coexistence. Animals with higher are less likely persist company those lower because former not able exploit patches previously by latter. climbed estimate counting primates left behind. 3. tested five Three proposed that each has density than other at least one following: (1) different tree species, (2) within-tree zones or (3) seasons. The fourth mechanism predicted socially dominant exploits resources first subordinate densities. final would find more quickly other, turn have density. 4. Four received no support from our data. Only trade-off interspecific dominance was supported. 5. discuss generality results interactions factors.