Acknowledgements
We thank Dr. Francesco Lamanna and Dr. Christiane Paul for participation
in sample collection in Congo/Brazzaville and Dr. Victor Mamonekene,
University of Brazzaville, for logistical support during field work.
Support from Katrin Kiemel in data analysis and manuscript revision is
also acknowledged. Financial support for this study was provided by the
University of Potsdam. R. Amen was funded by the Bridge Scholarship
Program of the University of Potsdam and by the Ministry of Higher
Education of the Arab Republic of Egypt.