diversity Article Local-Scale Bat Guild Activity Differs with Rice Growth Stage at Ground Level in the Philippines Jodi L. Sedlock 1,*, Alexander M. Stuart 2, Finbarr G. Horgan 3 , Buyung Hadi 2, Angela Como Jacobson 1, Phillip A. Alviola 4 and James D. V. Alvarez 5 1 Biology Department, Lawrence University, 711 E. North St., Appleton, WI 54911, USA 2 International Rice Research Institute, DAPO Box 7777, Metro Manila 1301, Philippines 3 EcoLaVerna Integral Restoration Ecology, Bridestown, Kildinan, T56 CD39 Co. Cork, Ireland 4 Department of Biological Sciences, University of the Philippines at Los Baños, College, Laguna 4031, Philippines 5 Museum of Natural History, University of the Philippines at Los Baños, College, Laguna 4031, Philippines * Correspondence:
[email protected]; Tel.: +1-920-832-7058 Received: 15 July 2019; Accepted: 25 August 2019; Published: 27 August 2019 Abstract: High-flying insectivorous bats, as wide-ranging generalist insectivores, are valuable consumers of high-altitude migrating pests of rice in Southeast Asia. Here, we documented the behavior of relatively low-flying bats over irrigated rice to elucidate their potential role as predators of rice-associated pest insects in the Philippines. Specifically, we tested the local-scale effects of rice stage, particularly seedling and late vegetative stages, and time of night on acoustic activity of bats foraging near ground level within three functional guilds (based on foraging distance from background clutter). We also monitored bat activity from two 50 m-high towers to assess the vertical extent of relatively low-flying guilds, as well as document high-flying bat guild presence and temporal behavior.