Observations of Weaver Ants on Plants in Bloom. the Table Indicates Whether Plants Produce

APPENDICES

Table S1. ΔAICc for each statistical model in relation to the best fit model (ΔAICc=0). The statistical models consider nectar presence, pollinator size and plant growth form as explanatory variables and the proportion of time that ants spent on the treatment side of the Petri dish as dependent variable. For each statistical model we applied three evolutionary models -- Brownian, Pagel and Ornstein-Uhlenbeck. The three most parsimonious models are marked with bold.

Model description / Evolutionary Model / ΔAICc /
Gr
owth form / Pagel / 0
Nectar + Growth form / Pagel / 0.2
Bee size / Pagel / 5.23
Bee size / Ornstein-Uhlenbeck / 9.47
Nectar / Pagel / 12.23
Nectar + Bee size / Pagel / 12.68
Nectar + Bee size / Ornstein-Uhlenbeck / 12.96
Nectar + Bee size / Brownian / 14.93
Bee size / Brownian / 15.38
Nectar / Brownian / 15.62
Nectar + Bee size + Nectar x Bee size / Ornstein-Uhlenbeck / 15.74
Nectar + Bee size + Nectar x Bee size / Pagel / 16.37
Nectar + Bee size + Nectar x Bee size / Brownian / 16.79
Nectar + Bee size + Nectar x Bee size / Brownian / 16.79
Bee size + Growth form / Pagel / 20.36
Bee size + Growth form / Ornstein-Uhlenbeck / 20.84
Nectar + Bee size + Growth form / Pagel / 24.84
Nectar + Bee size + Growth form / Ornstein-Uhlenbeck / 24.97
Growth form / Brownian / 25.51
Bee size + Growth form / Brownian / 25.68
Nectar + Growth form / Brownian / 25.87
Growth form / Ornstein-Uhlenbeck / 27.35
Nectar + Growth form / Brownian / 27.44
Nectar + Growth form / Ornstein-Uhlenbeck / 27.47
Nectar + Bee size + Growth form + Nectar x Bee size / Pagel / 29.34
Nectar + Bee size + Growth form + Nectar x Bee size / Ornstein-Uhlenbeck / 29.34
Nectar + Bee size + Growth form + Nectar x Bee size / Brownian / 31.02

Table S2

Observations of weaver ants on plants in bloom. The table indicates whether plants produce ant repellents, whether ants patrolled plants and flowers, the flowers visitors we observed and the reaction of ants towards flower visitors. In the flower visitors and ant response columns, cells are left empty when we observed neither flower visitors nor ants at flowers respectively. In the response column NBV indicates that bees did not visit ant-habouring flowers (although they visited flowers of the same plant)

Species / Repellent presence / Ants on plants / Ants at flowers / Flower visitors / Ant response /
Thunbergia grandiflora Robx. / No / Yes / Yes / Xylocopa sp. / NBV
Amalocalix yunnanesis Pierre / No / No / No / Xylocopa sp.
Calotropis gigantea (L.) W.T. Anton / No / Yes / Yes
Bauhinia acuminata L. / No / Yes / Yes / Xylocopa sp / Attacks
Bauhinia purpurea L. / No / Yes / Yes
Cassia auriculata (L.) Roxb. / No / Yes / Yes / Xylocopa sp. / Attacks
Cassia fistula L. / No / Yes / Yes / Xylocopa sp.
Apis cerana / Attacks
Ipomoea pes-caprae (L.) R. Br. / No / No / No
Costus speciosus Koen ex. Retsz. / No / Yes / Yes / Xylocopa sp / Drinking nectar from floral bracks
Dillenia ovata Wall ex Hook. f. & Thomson / No / Yes / Yes / Xylocopa sp / NBV
Dillenia suffruticosa (Griff ex Hook. f. & Thomson) Martelli / No / Yes / Yes / Xylocopa sp., Apis cerana, small flies. / Attacks
Mallotus japonicus (L.f.) Müll. Arg. / Yes / Yes / No / Apis cerana, Apis florea
Dalbergia sp / Yes / Yes / No / Apis cerana, Apis florea
Castanopsis indica (Roxb.) A. DC. / Yes / Yes / No / Trigona sp. / Attacks (from branches)
Cratoxylon conchinchinesis Bl. / Yes / No / No
Litsea sp. / Yes / Yes / No / Apis cerana, Apis florea
Lagerstroemia speciosa (L.) Pers. / No / Yes / Yes / Apis cerana, Xylocopa sp. / NBV
Microcos paniculata L. / Yes / Yes / No / Apis cerana
Melastoma malabathricum L. / No (attraction) / Yes / Yes / Nomia strigata, Xylocopa sp., Amegilla sp. / Attacks and capture
Mimosa pudica L. / Yes / No / No / Trigona sp.
Ardisia elliptica Thunb. / No / No / No / Halictid bees
Syzygium cumini (L.) Skeels / Yes / Yes / No / Trigona sp. Apis sp. / Captures (from branches)
Syzygium jambos (L.) Alston / Yes / Yes / No / Apis cerana
Averrhoa carambola L. / Yes / No / No / Trigona sp
Passiflora edulis Sims / Yes / No / No / Xylocopa sp.
Piper umbellatum L. / Yes / Yes / No / Apis cerana, Apis florea
Pittosporum tobira (Thunb.) W. T. Aiton / Yes / Yes / No / Apis cerana
Chassalia curviflora (Wallich) Thwaites / No / No / No
Murraya paniculata (L.) Jack / Yes / Yes / No / Apis cerana
Chrysophyllum cainito L. / Yes / No / No
Solanum trilobatum L. / No / Yes / Yes / Xylocopa sp. / Attacks
Gmelina asiatica L. / No / Yes / Yes / Xylocopa sp. / NBV

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