Table S1.

Sediment core characteristics

Core name	Date collected	Latitude	Longitude	Water depth, m	Core length/core type	Adjacent human impacts near core site at time of collection
LT98-07	7 January 1998	6°9.058′	29°42.479′	151	53 cm/Hedrick Marrs Multicore	Minimal (south of and adjacent to Mahale National Park)
NP04-KH1/MC1	18 July 2004	6°33.147′	29°58.480′	303	KH1-534 cm/ Kullenberg Piston Core	Minimal at time of collection (North end of Mahale National Park near Lubulungu R. delta). Significantly increased since (ref. 32)
					MC1-49 cm/Hedrick Marrs Multicore
NP05-TB40-GC1	29 July 2005	4°52.563′	29°36.183′	76	43 cm/MUCK-Gravity Core	Significant (in Kigoma Bay, high human population density and fishing nearby)