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Figure 9.2 Comparison of the historical, macrofossil and pollen records for several taxa
selected on the basis of their presence as sedimentary remains in a core from Groby
Pool. (From Davidson et al . 2005.)
the response of single groups of organisms, recently the multi-indicator approach
has increased as the need for a more complete understanding of the ecological
history of aquatic systems has grown (e.g. Birks & Birks 2006). The use of
multiple organism groups is also a particularly powerful tool for determining
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