Research Article
Some Unresolved Issues of Measuring the Efficiency of Pollinators: Experimentally Testing and Assessing the Predictive Power of Different Methods
Table 8
Foraging modes, number of foragers, foraging rates, and pollen transfer efficiency of different flower visitors of bath sponge(Luffa cylindrica).
| Parameter | Foraging mode | Visitor species | Apis florea | Halictus species | Melissodes species | Xylocopa fenestrata |
| No. of foragers /m2 (a) | N | 1.84±0.35 | 0.25±0.02 | - | - (b) | P | 0.38±0.15 | 0.15±0.01 | 0.13±0.01 | - (c) | NP | 0.46±0.14 | 0.28±0.02 | 0.28±0.03 | 0.73±0.05 (c) | N+P+NP | 2.68±0.65 | 0.48±0.05 | 0.41±0.04 | 0.73±0.05 (c) |
| Foraging rate (per minute)(a) | N | nr | nr | - | - | P | 3.6±0.39 | 3.2±0.37 | 3.2±0.37 | - (c) | NP | 2.4±0.19 | 1.6±0.28 | 2.2±0.24 | 6.5±0.54(c) |
| (conditional probability) | 0.054 | 0.054 | 0.054 | 0.054 |
| PTE (per minute) | 0.05 | 0.09 | 0.14 | 0.35 |
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: derived from ♂:♀ ratio = 4138 : 253. Other abbreviations are as in Table 5. |