This Ficus dubia growing in the forest next to the Sukau Rainforest Lodge on the banks of the Kinabatangan River. This fig was not fruiting when we visited in December 2016, so the ID was made from the leaves alone. Ficus dubia has one of the largest figs of any Conosycea strangler so it tends to attract the large birds such as hornbills and primates rather than masses of small birds. Only F.subcordata and F. stupenda have fig fruit of a similar size.

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Note that the habit is of a strangler that has already “strangled” its host tree. Tony Lamb shows the size.

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Our  fig survey of the small patch of forest at the back of the Sukau Eco Lodge Resort showed that this forest was very rich in strangling figs. In an area I would guest at 3 ha there were 5 large figs of  4 different species, F. dubia, Ficus stricta, Ficus depressa and Ficus magnoliifolia. Small figs were also abundant including numerous Ficus fistulosa, Ficus parietalis and Ficus  sagittata.

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It was difficult to get a view of the canopy but both the fallen leaves and the growing leaves matched those of Ficus dubia.
Sukau Rainforest Lodge on the Kinabatangan River near Kg Sukau is surrounded by some of the best fig forest in Borneo. No wonder the area is so rich in wildlife !