An ancient age of open-canopy landscapes in northern Madagascar? Evidence from the population genetic structure of a forest tree genetic analyses of two endemic rodent species.

ancient forest fragmentation and connectivity generate high a The Manuscript „How ancient forest fragmentation and riparian connectivity generate high levels of genetic diversity in a micro-endemic Mala gasy tree“ written by Salmona et al. deals with an interesting topic in a very interesting and understudied ecosystem. The authors used chloroplast SSRs and RADseq loci from the chloroplast, mitochondrial and nuclear genomes to study the genetic diversity and genetic structure of a narrow endemic tree species, Noronhia spinifolia in Madagascar. The study presents interesting data and results and is well written, nevertheless I have some concerns that I will lay out in detail below and that I hope will be helpful for the authors to improve the manuscript. and