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Probing the Seasonality Signal in Pollen Spectra of Eneolithic Coprolites (Hârşova-tell, Constanţa County, Southeast Romania)

  • TITLU în română: Examinarea semnalului de sezonalitate în spectrele palinologice ale coprolitelor eneolitice (tell-ul Hârşova, judeţul Constanţa, România de Sud-Est)
  • Subiect: Samples from seven stratigraphic units of a midden complex in the Eneolithic (Gumelniţa A2) levels at Hârşova-tell (Constanţa County, southeast Romania) were analysed to test for seasonality signals in coprolite pollen spectra. The very short interval of pollen rain recorded in coprolites makes them particularly attractive as potential bearers of seasonal signals resulting from the pollination phenology of different plant species. The analysed midden represents 1-1.5 years of deposition and its stratigraphy is constrained at high spatial and temporal resolution, providing an excellent framework for the test. Coprolite pollen spectra are highly polarized and reveal poor pollen preservation and selective pollen destruction. Pollen taxa resistant to destruction and easily identifiable in degraded state (Chenopodiaceae, Artemisia, Poaceae) are present in high amounts often masking signals borne by seasonality-informative taxa, and therefore are not taken into consideration in interpretations of seasonality. Some of the coprolite pollen spectra indicate relatively clear-cut seasonality assignments that coincide with independent inferences based on fish bones and the stratigraphic distribution of coprolite concentration. Other pollen spectra yield equivocal data that cannot be used independently to assign their stratigraphic units to a particular season. Results of this pilot study suggests that short intervals of pollen rain recorded in coprolites, compounded with the vagaries of behaviour of individual animals that produced the coprolites, lead to an uneven reflection of the pollen rain in coprolite pollen spectra. Consequently, the power of resolution of these spectra in terms of seasonality varies over a broad range. Although somewhat conflicting, the results of the study suggest that coprolite palynology can potentially be developed as a tool to resolve seasonality, given a better preservation of palynomorphs and if coprolite samples are compounded for each stratigraphic level to minimize the effects of individual behaviour of the coprolite producers.
  • Limba de redactare: engleză
  • Secţiunea: Studii şi articole
  • Vezi publicația: Cultură şi civilizaţie la Dunărea de Jos
  • Editura: Muzeul Dunării de Jos
  • Loc publicare: Călăraşi
  • Anul publicaţiei: 2005
  • Referinţă bibliografică pentru nr. revistă: XXII; anul 2005; subtitlu: In honorem Silviae Marinescu-Bîlcu, 70 de ani
  • Paginaţia: 207-221
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