The Holocene vegetational history of the Nigerian Sahel based on multiple pollen profiles

U Salzmann, M Waller - Review of Palaeobotany and Palynology, 1998 - Elsevier
Four Holocene pollen diagrams are presented from interdune depressions in the Manga
Grasslands (northeastern Nigeria near 13° N). These sequences are interpreted using
modern pollen spectra, statistical analyses and groupings based on phytogeographical
affinity (Long Distance, Sahelian, Sudanian, Guinean). The roles of climate change and
anthropogenic activity in the vegetational history of the central part of Sahel are evaluated.
Particular attention is given to the separation of regional (Manga Grasslands) from local …