ESM011: Location of sampling stations:1D, K1B, 4B, K4A, 20B, 20C, N1A, N1B, N4A, N4B, N20A, N20B.

Frequency of sampling: Twice, one in June and once in July 2014.

Variable measured: Number of blooming inflorescences of each plant species within two 5 x 50m plots.

Field methods: Within each watershed, one upland and one lowland location was selected haphazardly. At each location, counts of individual inflorescences for each flowering plant species were recorded within a 5 m x 50 m area plot.

ESM012: Location of sampling stations:1D, K1B, 4B, K4A, 20B, 20C, N1A, N1B, N4A, N4B, N20A, N20B.

Frequency of sampling: Twice, one in June and once in July 2014.

Variable measured: Abundance of flower-visiting insect morphospecies on inflorescences of flowering-plant species.

Field methods: Within each watershed, one upland and one lowland location was selected haphazardly. At each location, floral visiting insects were collected directly on the inflorescences of flowering plants using sweep nets, by hand, and by observation for large and easily identified insects for 1 person-hour within a 1 ha area by random (haphazard) walk. Insects were collected only if they belonged to one of four orders: Coleoptera, Diptera, Hymenoptera and Lepidoptera. Insects were separated by the species of flowering plant on which they were collected.

ESM013: Location of sampling stations:1D, K1B, 4B, K4A, 20B, 20C, N1A, N1B, N4A, N4B, N20A, N20B.

Frequency of sampling: Twice, one in June and once in July 2014.

Variable measured: Abundance insects belonging to the orders of Coleoptera, Diptera, Lepidoptera and Hymenoptera.

Field methods: Within each watershed, one upland and one lowland location was selected haphazardly. Insects were collected using transects consisting of 12, 70 cm tall, elevated 9 oz. pan traps (two each of six inflorescent colors: purple, blue, yellow, orange, pink, and white) each spaced 5 meters apart, filled with soapy water, and left out for 3 days at each of the 24 sites during each sampling period. Only insects from the four major pollinator orders of Coleoptera, Diptera, Hymenoptera, and Lepidoptera were included. Collected insects were washed, stored in 70% alcohol, sorted to morphospecies, and identified to lowest possible taxonomic level.