data are interdependent, in the sense that the values of individual taxon are dependent on the abundance of the other plant taxa, and changes in abundance of one species will always lead to changes in the percentages of other pollen types, even if there is no real change in their population size (Fa...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.606.8591 http://www.metla.fi/hanke/3422/seppa_holocene_2009.pdf |
| Summary: | data are interdependent, in the sense that the values of individual taxon are dependent on the abundance of the other plant taxa, and changes in abundance of one species will always lead to changes in the percentages of other pollen types, even if there is no real change in their population size (Fagerlind, 1952). This problem is amplified by the differences in pollen productivity between different plant taxa. Consequently, pollen percentage diagrams do not reflect real relative abundances of the plant taxa around the study sites (Prentice, 1988) and, despite the long palaeoecological tradition and high number of pollen records, no truly quantitative population reconstructions have been attempted in Fennoscandia or elsewhere in the Boreal zone of northern Europe. |
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