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Nectar and pollen reward of Geranium phaeum available to flower visitors in 2015–2016, Lublin, SE Poland
| Year | Nectar amount · flower−1 (mg)* | Nectar sugar concentration (% w/w)* | Nectar sugar amount:* | Caloric value of nectar · m−2 of patch (cal) | Pollen amount: | ||
|---|---|---|---|---|---|---|---|
| flower−1 (mg) | m−2 of patch (g) | flower−1 (mg) | m−2 of patch (g) | ||||
| 2015 | 1.6b ± 1.3 (14) | 36.6b ± 11.2 (14) | 0.5b ± 0.3 (14) | 1.0b ± 0.4 (11) | 4.0b ± 1.6 (11) | 2.0a ± 0.1 (6) | 4.0a ± 1.5 (11) |
| 2016 | 2.9a ± 1.0 (16) | 53.1a ± 7.4 (16) | 1.6a ± 0.6 (16) | 2.5a ± 0.3 (11) | 9.9a ± 2.0 (11) | 1.7b ± 0.2 (6) | 2.7b ± 0.6 (11) |
| mean | 2.3 ± 1.4 (30) | 45.4 ± 12.5 (30) | 1.1 ± 0.7 (30) | 1.7 ± 0.9 (22) | 6.9 ± 3.5 (22) | 1.9 ± 0.2 (12) | 3.4 ± 1.3 (22) |
Time and abundance of flowering of Geranium phaeum in the years of study, Lublin SE Poland
| Year | Flowering period (days) | No. of flowering stems · m−2 of a patch* | No. of flowers:* | |
|---|---|---|---|---|
| flowering stem−1 | m−2 of a patch (thous.) | |||
| 2015 | 27 April–8 June (43) | 120.6a ± 42.1 (11) | 16.5b ± 4.7 (113) | 2.0a ± 0.8 (11) |
| 2016 | 29 April–31 May (33) | 65.3b ± 12.8 (11) | 21.3a ± 7.1 (140) | 1.6a ± 0.3 (11) |
| mean | (38) | 92.9 ± 41.5 (22) | 19.2 ± 6.6 (253) | 1.8 ± 0.6 (22) |