Acknowledgements
We thank members of the Moreau lab, Price lab and Jablonski lab for
discussions, David Jablonski and Cathy Pfister for their comments on an
earlier version of the MS, and Daniel Hooper for his original insights
into the possible competitive effects of ants on birds. We would also
like to thank Amir Chhetri, Suresh Brar, Suresh Rana, Deepika Karmarkar,
Jobin Varughese, Vinod Shankar, Priyanka Das, Ritobroto Chanda, Pranav
Balasubramanian, Sumit Bawalia and Abhijit Dey for assistance in the
field. We are grateful to Amruta Varudkar, Prachi Thatte, Krishnapriya
Tamma, Jyothi Nair, Anubhab Khan, Kevin Feldheim, Brian Wray and Stefan
Green for help with lab work. Data collection was funded by a Young
Explorer grant from National Geographic Society, a Rufford Small Grant
and Henry Hinds Fund for Graduate Student Research in Evolutionary
Biology to K. Supriya. K. Supriya was supported by a Field Museum Women
in Science Fellowship at the time of data collection and a Faculty for
the Future fellowship from the Schlumberger Foundation at the time of
writing this manuscript. We would also like to thank two anonymous
reviewers for their comments on a previous version of this manuscript.