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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Davies, J.H. | 1904 | Moss-notes from North Ireland | Journal | Ir. Nat. | Details... |
| Davies, J.H. | 1905 | Some mosses from County Down | Journal | Ir. Nat. | Details... |
| Davies, J.H. | 1907 | Bryological notes from County Down | Journal | Ir. Nat. | Details... |
| Davies, J.H. | 1907 | Lepidium draba again in County Down | Journal | Ir. Nat. | Details... |
| Davies, J.H. | 1907 | Galium sylvestre in North Ireland | Journal | Ir. Nat. | Details... |
| Davies, J.H. | 1909 | Bryological notes from Counties Down and Louth | Journal | Ir. Nat. | Details... |
| Davies, J.H. | 1909 | Barbula hornschchiana in Counties Down and Armagh | Journal | Ir. Nat. | Details... |
| Davies, J.H. | 1909 | Archidium alternifolium in County Down - a correction | Journal | Ir. Nat. | Details... |
| Davison, A.H. | 1945 | Rare plants in South Down | Journal | Ir. Nat. J. | Details... |
| Day, G. | 2000 | Excursion: RSPB Belfast Harbour Reserve | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Day, G. | 2004 | Hydrocotyle ranunculoides L. f., an invasive aquatic plant, in Cos Down (H38) and Antrim (H39) | Journal | Ir. Nat. J. | Details... |
| Deane, C.D. | 1934 | Black-headed gull breeding on island in Strangford Lough | Journal | Ir. Nat. J. | Details... |
| Deane, C.D. | 1937 | Blackcap wintering in Co. Down | Journal | Ir. Nat. J. | Details... |
| Deane, C.D. | 1948 | Survey of Strangford Lough | Journal | Ir. Nat. J. | Details... |
| Deane, C.D. | 1952 | Pine marten in counties Tyrone and Down | Journal | Ir. Nat. J. | Details... |
| Deane, C.D. | 1978 | Review: 'Copeland Bird Observatory Report 1976' | Journal | Ir. Nat. J. | Details... |
| Department of Economic Development, Industrial Science Division | 1990 | The impact of commercial trawling on the benthos of Strangford Lough (interim report) | Report | | Details... |
| Department of the Environment for Northern Ireland | 1991 | Strangford Lough - a consultation paper | Report | | Details... |
| Dick, J.T.A., Elwood, R.W. & Montgomery, W.I. | 1994 | Range expansion of the alien freshwater amphipod Gammarus pulex (L.) in the River Lagan, Co. Down | Journal | Ir. Nat. J. | Details... |
| Dickinson, C.W. | 2000 | Excursion: Castlewellan, Maghera and Dundrum area | Journal | Proc. Belf. Nat. Fld. Club | Details... |
1178 references found.