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Sensing small-scale human activity in the palaeoecological record: fine spatial resolution pollen analyses from Glen Affric, northern Scotland

Department of Environmental Science, University of Stirling, Stirling FK9 4LA, Scotland, UK; ald1{at}stir.ac.uk

Richard Tipping

Department of Environmental Science, University of Stirling, Stirling FK9 4LA, Scotland, UK

This paper examines the importance of palynological site selection criteria, speci"cally basin size, for the detection of vegetation mosaics and small- or local-scale human activity within a spatially diverse, mosaic landscape. Using a site selection strategy which recognizes landscape patchiness, pollen analyses from three small peat basins (10–56 m diameter) in an open, exposed upland valley (>250 m OD) provide records which are sensitive to local vegetation mosaics and small-scale, localized agriculture. The results indicate c. 4000 ¹⁴C years (4400 cal. years) of land use, with spatial and temporal variations in the valley. Contrasts between the sequences suggest that local pollen production remains an important component of the pollen rain deposited in small peat basins, even in open environments; this is especially true of palynological‘agricultural indicators’. By comparison, sites with regional pollen source areas underestimate the spatial diversity of the upland landscape, and are insensitive to small-scale human activity in an environment where the fragmentary distribution of soils suitable for agriculture favoured a small-scale, dispersed pattern of farming. It is therefore essential to match the spatial resolution of pollen records with the grain size or scale of variations in the environment under investigation in order to sense the scale of mosaics in vegetation and agriculture within patchy landscapes.

Key Words: Fine-resolution pollen analysis • spatial resolution • palaeoecology • vegetation history • land-use history • pollen source area • anthropogenic activity • vegetation mosaics • Holocene • Scottish Highlands

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