Plants That “Reflect Sound”: The Remarkable Mutualism between Pitcher Plants and Bats

Mutualistic relationships between plants and animals are widespread throughout nature. Flowers attract pollinating insects through colors and scents, while fruits entice animals with sweetness that encourages seed dispersal. Most such signals rely on visual or olfactory cues. Far more unusual, however, are plants that attract animals through sound or echoes.

In the forests of Borneo, the pitcher plant Nepenthes hemsleyana has evolved a striking partnership with bats. Unlike most carnivorous pitcher plants, this species does not primarily rely on trapping insects to obtain nitrogen. Instead, it derives nutrients from bat droppings. The feces deposited by bats provide a substantial nutritional contribution, increasing the plant’s nitrogen intake by roughly one third on average. For a plant growing in nutrient-poor peat soils, such a resource is extremely valuable. At the same time, the bats also benefit from this relationship.

Want to read more?

Subscribe to thesoundofevolution.com to keep reading this exclusive post.

Subscribe Now