Abstract

<jats:p>Vertical distribution of herbivores, mixed feeders and insectivores in an upland tropical rainforest
reflected variation of foods present in different strata. Arboreal insectivores utilized the widest range of
strata because of a wider distribution of arthropod foods. Differential utilization of vertical strata was
the most important factor to bring about niche differentiation, not only between the three feeding
categories but between species within each of the categories. Species whose vertical ranges were similar
were segregated by differential utilization of foraging sites, by foraging behaviours and/or by food
resources. Seasonal migration, variation in diet and shifts in vertical foraging levels, and/or diurnal
variation of foraging times, resulted in a finer partitioning of resources between those species whose
niches greatly overlapped.</jats:p>