Evidences of natural environmental changes and human impact reflected by Foraminifera in the southern Tyrrhenian Sea for the last 520 years

Climate has been acknowledged as one of the main driving factors behind human development and in turn human activity may cause strong changes on marine ecosystems. Coastal areas represent very useful marine sedimentary archives to investigate the potential effects of human impact on shelf marine ecosystems. The high-resolution investigation presented here of a southern Tyrrhenian marine record from the continental shelf of the Salerno Gulf provides an unprecedented opportunity to study the main natural and human impact that have occurred in this area during the last five centuries. Evidence of an important turnover between carnivorous and herbivorous opportunistic planktonic foraminfera species is recorded after the Maunder event. In addition, after 1940 AD, a strong increase in the distribution pattern of the Globigerina bulloides species combined with a sudden increase in the abundance pattern of the benthic foraminifer Bulimina aculeata, and evident enhancement of benthic and planktonic foraminifera (as number of specimens per gram of dry sediment) can be directly associated to the effects of the construction of the Sele River dam (1934 AD).