| A cluster analysis approach to classifying Irish native woodlands PM Perrin, JR Martin, SJ Barron, JR Roche Biology and Environment: Proceedings of the Royal Irish Academy 106 (3), 261-275, 2006 | 37 | 2006 |
| Plant community ecology of Pinus sylvestris, an extirpated species reintroduced to Ireland JR Roche, FJG Mitchell, S Waldren Biodiversity and Conservation 18 (8), 2185-2203, 2009 | 36 | 2009 |
| Guidelines for a national survey and conservation assessment of upland vegetation and habitats in Ireland. Version 1.0. PM Perrin, SJ Barron, JR Roche, B O’Hanrahan Irish Wildlife Manual 48, 2010 | 22* | 2010 |
| Palaeoecological Evidence for Survival of Scots Pine through the Late Holocene in Western Ireland: Implications for Ecological Management JR Roche, FJG Mitchell, S Waldren, BS Stefanini Forests (19994907) 9 (6), 2018 | 15 | 2018 |
| The vegetation ecology and native status of Scots pine (Pinus sylvestris L.) in Ireland J Roche Trinity College Dublin., 2010 | 8 | 2010 |
| Recent findings on the native status and vegetation ecology of Scots pine in Ireland and their implications for forestry policy and management JR Roche IrIsh Forestry 76 (1&2), 29-54, 2019 | 6 | 2019 |
| Are Ireland's reintroduced Pinus sylvestris forests floristically analogous to their native counterparts in oceanic north-west Europe? JR Roche, FJG Mitchell, S Waldren, JE Bjørndalen Biology and Environment: Proceedings of the Royal Irish Academy 115 (2), 97-114, 2015 | 6 | 2015 |
| Scoping study and pilot survey for a national survey and conservation assessment of upland habitats and vegetation in Ireland SJB PM Perrin, B O'Hanrahan, JR Roche National Parks and Wildlife Service, Dublin, 2009 | 6* | 2009 |
| A new county record for alpine clubmoss (Diphasiastrum alpinum) from the Comeragh Mountains, Co. Waterford (H6) JR Roche, PM Perrin Irish Naturalists' Journal 31 (2), 149-150, 2010 | 2 | 2010 |
| New vice-county record for Marsh Saxifrage (Saxifraga hirculus) in Sligo (H28) C Muldoon, R Hodd, C Douglas, N Lockhart, J Roche Irish Naturalists’ Journal 33 (2), 130-131, 2014 | 1 | 2014 |
| Diphasiastrum alpinum (L.) Holub (Alpine Clubmoss) rediscovered in Co. Kerry (H1) RL Hodd, JR Roche The Irish Naturalists' Journal 34 (2), 125-126, 2015 | | 2015 |
| Guidelines for a national survey and conservation assessment of upland vegetation and habitats in Ireland. Version 2.0. PM Perrin, SJ Barron, JR Roche, B O’Hanrahan Irish Wildlife Manual 79, 2014 | | 2014 |
| The National Survey of Upland Habitats PM Perrin, JR Roche, OH Daly, C Douglas Conserving Farmland Biodiversity 3, 88, 2011 | | 2011 |
| New records for Diphasiastrum alpinum L. (Holub) and their implications for the species' conservation status in Ireland JR Roche Irish Botanical News, 16-20, 2011 | | 2011 |
Philip M. PerrinDirector of Ecology at BEC Consultants, DublinVerified email at botanicalenvironmental.com
