Research and Publications
Provisional Atlas Of The Long-Palped Craneflies (Diptera: Tipulinae) Of Britain And Ireland ( ). Biological Records Centre, Huntingdon.
(1992) Provisional Atlas Of The Aculeate Hymenoptera Of Britain And Ireland, Part 3. Biological Records Centre, Huntingdon.
. (2001) Provisional Atlas Of British Spiders (Arachnida, Araneae) 2 Vols. Biological Records Centre, Huntingdon.
. (2002) Provisional Atlas Of The Aculeate Hymenoptera Of Britain And Ireland, Part 4. Biological Records Centre, Huntingdon.
. (2002) Ecological correlates of range structure in rare and scarce British plants. Journal of Ecology, 94, 581-596.
(2006)