Table 4.
Summary of multiple-response-curves fitting of each pollinator group to Erysimum mediohispanicum phenotypic traits at the individual plant level. Equations refer to the best prediction of visitation rate for each pollinator functional group (see Appendix for details)
| Functional groups | Populations | Best fitted predictive equation |
|---|---|---|
| Large bees | All | 0·01Flower number + 0·20Corolla diameter + 0·18Corolla tube length |
| Bee-flies | All | 0·03Stalk height |
| Butterflies | All | 0·35Corolla diameter |
| Hoverflies | All | 0·01Flower number – 0·45Corolla tube length |
| Small bees | Em21 | 0·01Flower number – 0·23Corolla tube length |
| Em01 | 0·01Flower number – 0·08Stalk height | |
| Em22 | 0·02Flower number – 0·07Stalk height | |
| Em23 | 0·01Flower number + 0·74Corolla diameter | |
| Em24 | 0·02Flower number | |
| Em25 | 0·04Flower number | |
| Em02 | 0·01Flower number – 0·07Stalk height + 0·46Corolla tube length | |
| Beetles | Em21 | –0·67Corolla tube length |
| Em01 | 0·01Flower number – 0·05Stalk height + 1·64Corolla diameter + 0·50Corolla tube length | |
| Em23 | 0·01Flower number | |
| Em24 | 0·02Flower number + 1·27Corolla tube length | |
| Em25 | 0·02Flower number – 0·07Stalk height | |
| Em02 | 0·01Flower number + 0·87Corolla diameter | |
| Wasps | Em23 | 2·08Corolla diameter |
| Em24 | 0·04Corolla diameter | |
| Em02 | –0·84Stalk height + 3·27Corolla diameter – 3·15Corolla tube length | |
| Others | Em08 | 0·13Flower number – 0·36Stalk height |
| Em01 | 0·02Flower number | |
| Em25 | 0·05Flower number – 1·83Corolla tube length | |
| Em02 | –0·26Stalk height |
Visitation rates were fitted to Poisson distributions because they were estimated as number of insects per plant.
Sample size is 720 (90 plants per population).