FUNGAL SPORES IN FECES AS EVIDENCE OF FUNGUS INGESTION BY SHEEP

In Ireland, upland areas are becoming extensively planted with conifer ous forest to which sheep are allowed access. Such forest produces man y more fruiting bodies of basidiomycetes than the blanket bog on which it was planted. Faecal samples taken from hill and adjacent forest (P icea abies) grazing areas showed an autumnal increase in radiocaesium in the forest samples compared with the hill samples, and there was an indication of higher in vivo radiocaesium activity in the autumn, par ticularly in individual animals which are known to graze the forest. T he peak faecal and in vivo radiocaesium levels coincided with the fung al growing season. A new method is presented using fungal spores, whic h proves the ingestion of fungi by sheep and permits the identificatio n and quantification of the fungi consumed.