An orchard was managed conventionally. A wildflower strip was then sown along one edge. Pollinating insects were sampled in the conventional part and in the wildflower strip. The table shows the results.
| Pollinator species | Conventional part | Wildflower strip |
|---|---|---|
| 1 | 42 | 18 |
| 2 | 8 | 15 |
| 3 | 4 | 12 |
| 4 | 0 | 9 |
| 5 | 0 | 6 |
The index of diversity of the pollinators in the conventional part is 1.60.
Calculate the index of diversity of the pollinators in the wildflower strip. Use and show your working.
[2]
Use the data to suggest how sowing the wildflower strip has affected the pollinator community, and explain why.
[3]