deletions | additions       diff --git a/materials_and_methods.tex b/materials_and_methods.tex  index 23d00b0..013b37f 100644  --- a/materials_and_methods.tex  +++ b/materials_and_methods.tex 
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The geographical area of this study (20ºN to 70ºN, 10ºW to 70ºE) comprises Europe and the Irano-Turanian region. This area does not cover the entire known range of Neanderthals, which extended at least to Okladnikov in Southern Siberia \cite{Krause_2007}, but there is only one single Neanderthal record (Ust-Izhul, Siberia) attributed to MIS 5e beyond the Caspian Sea \cite{Rolland2010}, and therefore the data available would be too scarce to build a reliable model for this region.  We found up to 64 archaeological sites in searched  the literature attributed to a for archaeological sites with  Neanderthal presence during the last interglacial period (see SEI fossil  or Table 1?). 34 of these presences were attributed by their authors lithic remains belonging  to MIS 5e, while the remaining ones were 5e. Sites  broadly attributed to MIS 5 and were  therefore excluded from our study. To reduce spatial clustering and pseudo-replication within the presence dataset we filtered the data applying a minimum distance of 100 km between nearby locations \cite{Guisan_2005}, which reduced the sample size to 25 presence records (see Fig. 1). \paragraph{Environmental variables} 
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