Figure legends:
Figure 1: a. Correlation between number of songbird species and
individuals along an elevational gradient in the eastern Himalayab. Correlation between number of songbird species and arthropod
abundance along the same gradient. Site at 200m and 2000m elevation
examined further in this study shown in blue and yellow respectively.
Based on data in (Price et al. 2014)
Figure 2 Venn diagram showing diet overlap at multiple
taxonomic levels as assessed with molecular metabarcoding between weaver
ants, birds at low elevations and birds at mid-elevations. Bird and ant
silhouettes taken from phylopic.org. Anthony Caravaggi produced the bird
silhouette.
Figure 3: (a-b) Data from 34 trees paired for size and
species, where one tree had weaver ants and the other did not.a. Number of arthropods belonging to the orders Lepidoptera and
Coleoptera b. Leaf damage estimated on 10 leaves distributed
around the tree.
Figure 4: Number of arthropods (excluding ants and suborder
Homoptera) before and one month after weaver ant removal and exclusion
experiment. Data from 30 trees paired for size and species, with one
member of each pair subject to weaver ant removal and exclusion. Grey
lines and dots show control trees and purple lines and dots show
treatment trees. Darker dots and lines indicate multiple overlapping
points.
Figure 5 a. Difference in mean abundance of major
arthropod orders in control and treatment trees one month after ant
exclusion and removal (derived from the data in Fig. S7) b.Frequency of different arthropod orders in bird diets at low elevations
(Proportion of individual birds with at least one sequence from that
order, N = 18 individuals)