Environmental earth sciences, 2014-05, Vol.71 (9), p.4061
2014
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Details
- Autor(en) / Beteiligte
- Titel
- Guano-derived [delta]^sup 13^C-based paleo-hydroclimate record from Gaura cu Musca Cave, SW Romania
- Ist Teil von
- Environmental earth sciences, 2014-05, Vol.71 (9), p.4061
- Ort / Verlag
- Heidelberg: Springer Nature B.V
- Erscheinungsjahr
- 2014
- Quelle
- Alma/SFX Local Collection
- Beschreibungen/Notizen
- The δ^sup 13^C values of 23 unevenly spaced guano samples from a 17-cm long clay sediment profile in Gaura cu Musca Cave (GM), in SW Romania, made it possible to preliminarily characterize the Medieval Warm Period summer hydroclimate regime. The beginning of the sequence (AD 990) was rather wet for more than a century, before becoming progressively drier. After a brief, yet distinct wet period around AD 1170, drier conditions, with a possible shift from C^sub 3^ to a mixed C^sub 3^-dominated/C^sub 4^ type vegetation (2 [per thousand] lower δ^sup 13^C values), prevailed for almost half a century before the climate became colder and wetter at the onset of the Little Ice Age, when bats left the cave. The guano-inferred wet and dry intervals from the GM Cave are mirrored by changes in the color and amount of clay accumulated in the cave. They also agree well with reconstructions based on pollen and charcoal from peat bogs and δ^sup 13^C and δ^sup 18^O on speleothems from other Romanian sites. Overall, these results indicate that the δ^sup 13^C of bat guano can provide a sensitive record of the short-term coupling between local/regional climate and the plant-insect-bat-guano system.[PUBLICATION ABSTRACT] Erratum DOI: 10.1007/s12665-014-3124-x