Bat guano δ13C and δ15N values as climate proxy

Abstract

The aim of the present study is to demonstrate the usefulness of stable carbon and nitrogen isotopes in bat guano as proxies for paleoclimate changes. We show a 2500-year record of environmental change in Romania using δ¹³C, δ¹⁵N, and (C:N) derived from precisely ¹⁴C-dated bat guano cores recovered from Gaura cu Musca (GM), Zidită (ZC), and Magurici (MC) caves