2. Methods
2.1. Bat range, rice production, and pest occurrence
We mapped the bat foraging range based on cave locations from
Boonkerd et al. (2001) and an online database (http://www.thailandcaves.
shepton.org.uk/cave-co-ordinates). We then obtained
the bat foraging range of a 25 km radius around the caves from
the literature (Utthammachai, 2009), and verified population sizes
and cave locations (S. Bumrungsri, personal observations).