| Commune | Code | Observation(s) | % des observations totales |
|---|---|---|---|
| ASSERAC | 44006 | 4 | 2.5 |
| BESNE | 44013 | 3 | 1.9 |
| BLAIN | 44015 | 1 | 0.6 |
| BOUGUENAIS | 44020 | 1 | 0.6 |
| BOUILLE-COURDAULT | 85028 | 1 | 0.6 |
| BOUSSAY | 44022 | 2 | 1.3 |
| CARQUEFOU | 44026 | 1 | 0.6 |
| CHAMPAGNE-LES-MARAIS | 85049 | 18 | 11.3 |
| CHATEAUBRIANT | 44036 | 1 | 0.6 |
| CHEFFOIS | 85067 | 1 | 0.6 |
| CONQUEREUIL | 44044 | 1 | 0.6 |
| COUFFE | 44048 | 1 | 0.6 |
| DREFFEAC | 44053 | 2 | 1.3 |
| FEREL | 56058 | 1 | 0.6 |
| FONTENAY-LE-COMTE | 85092 | 1 | 0.6 |
| FROIDFOND | 85095 | 1 | 0.6 |
| GETIGNE | 44063 | 2 | 1.3 |
| GUENROUET | 44068 | 1 | 0.6 |
| GUERANDE | 44069 | 10 | 6.3 |
| HERBIGNAC | 44072 | 1 | 0.6 |
| HERIC | 44073 | 1 | 0.6 |
| LA BARRE-DE-MONTS | 85012 | 1 | 0.6 |
| LA BAULE-ESCOUBLAC | 44055 | 1 | 0.6 |
| LA BRUFFIERE | 85039 | 1 | 0.6 |
| LA CHAPELLE-SUR-ERDRE | 44035 | 2 | 1.3 |
| LA DOMINELAIS | 35098 | 1 | 0.6 |
| LA FAUTE-SUR-MER | 85307 | 4 | 2.5 |
| LA MARNE | 44090 | 1 | 0.6 |
| LA ROCHE-SUR-YON | 85191 | 2 | 1.3 |
| LA TRANCHE-SUR-MER | 85294 | 4 | 2.5 |
| LA TURBALLE | 44211 | 4 | 2.5 |
| LE BIGNON | 44014 | 2 | 1.3 |
| LE POULIGUEN | 44135 | 1 | 0.6 |
| LES MOUTIERS-EN-RETZ | 44106 | 1 | 0.6 |
| LIGNE | 44082 | 1 | 0.6 |
| MACHECOUL | 44087 | 1 | 0.6 |
| MAISDON-SUR-SEVRE | 44088 | 2 | 1.3 |
| MARSAC-SUR-DON | 44091 | 1 | 0.6 |
| MONTRELAIS | 44104 | 1 | 0.6 |
| NANTES | 44109 | 3 | 1.9 |
| NIVILLAC | 56147 | 1 | 0.6 |
| ORVAULT | 44114 | 1 | 0.6 |
| OUDON | 44115 | 4 | 2.5 |
| PIRIAC-SUR-MER | 44125 | 2 | 1.3 |
| PLESSE | 44128 | 1 | 0.6 |
| PONTCHATEAU | 44129 | 3 | 1.9 |
| PORNICHET | 44132 | 1 | 0.6 |
| PRINQUIAU | 44137 | 3 | 1.9 |
| REZE | 44143 | 1 | 0.6 |
| SAINT-AUBIN-DES-CHATEAUX | 44153 | 2 | 1.3 |
| SAINT-DENIS-DU-PAYRE | 85207 | 39 | 24.5 |
| SAINT-DOLAY | 56212 | 1 | 0.6 |
| SAINTE-PAZANNE | 44186 | 1 | 0.6 |
| SAINTE-RADEGONDE-DES-NOYERS | 85267 | 3 | 1.9 |
| SAINTE-REINE-DE-BRETAGNE | 44189 | 2 | 1.3 |
| SAINT-GERMAIN-DE-PRINCAY | 85220 | 1 | 0.6 |
| SAUTRON | 44194 | 4 | 2.5 |
| SUCE-SUR-ERDRE | 44201 | 1 | 0.6 |
| TILLIERES | 49349 | 1 | 0.6 |
| TREILLIERES | 44209 | 2 | 1.3 |
| TRIAIZE | 85297 | 1 | 0.6 |
| VARADES | 44213 | 1 | 0.6 |
| VENANSAULT | 85300 | 1 | 0.6 |
| VIGNEUX-DE-BRETAGNE | 44217 | 1 | 0.6 |