Open Access
Table 1
Density of nymph (DON) per 100 m2 for different sites from March to June 2024.
| Month/Site | March | April | May | June | Mean (Standard deviation) |
|---|---|---|---|---|---|
| 1-Robertsau forest (N) | 7.67 | 26.00 | 51.67 | 13.67 | 24.75 (19.50) |
| 2-Pourtalès park (N) | 1.00 | 2.33 | 6.33 | 16.67 | 6.58 (7.09) |
| 3-Orangerie park (C) | 6.33 | 0.33 | 0.00 | 1.33 | 2.00 (2.94) |
| 4-Botanical garden (C) | * | 1.00 | 1.67 | 0.67 | 1.11 (0.51) |
| 5-Citadelle park (C) | 0.67 | 0.33 | 0.33 | 0.00 | 0.33 (0.27) |
| 6-Schulmeister park (C) | 0.00 | 0.00 | 0.33 | 0.00 | 0.08 (0.17) |
| 7-Neuhof forest (S) | 19.00 | 13.67 | 11.67 | 28.67 | 18.25 (7.60) |
| 8-Rohrschollen forest (S) | 26.67 | 41.00 | 6.67 | 7.67 | 20.50 (16.47) |
| Mean | 8.76 (10.29) | 10.54 (15.37) | 9.83 (17.40) | 8.54 (10.41) | Overall mean 9.46 (13.15) |
*No data. N: North, C: City; S: South.
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