Figure 2 in Carnivorous Nepenthes pitcher plants are a rich food source for a diverse vertebrate community

Figure 2. (a) Typical habitat (Tutong site I) where we observed sunbirds and a tree shrew foraging on nectar of Nepenthes rafflesiana and N. gracilis pitchers. (b) Temperature and humidity measurements from the same site. The peak foraging times coincided with the times of high relative humidity from sunrise to about 10:30, and from about 17:00 until sunset. (c) The Belait site was less open, and surrounded by mature forest. We never observed vertebrates foraging on pitcher nectar in this site.