Table 3. Summaries of analyses of variation in dog range sizes, time spent by dogs in the vicinity of ponds and history of Guinea worm infection in dogs in rural Chad.

Core range is the 60% kernel density estimate and total range is the 100% minimum convex polygon. History of Guinea worm infection is from our field survey records and records held by the Chad Guinea Worm Eradication Program. Model outcomes are shown as the top model sets (ΔAICc < 2 from the top model) for all analyses.

	df	LogLik	AICc	ΔAICc	Weight
Total range size (100% MCP)
Days monitored + body condition + settlement	6	-165.34	343.5	0	0.54
Days monitored + body condition + settlement + age	7	-165.01	345.1	1.62	0.24
Days monitored + body condition + settlement + sex	7	-165.06	345.2	1.71	0.23
Core range size (60% KDE)
Settlement	4	-204.48	417.3	0	0.33
Settlement + days monitored	5	-203.80	418.2	0.85	0.22
Settlement + body condition	5	-203.91	418.4	1.07	0.19
Settlement + days monitored + body condition	6	-203.17	419.1	1.81	0.13
Settlement + water provision	5	-204.31	419.2	1.85	0.13
Time spent in the vicinity of ponds (n fixes within 100 m of ponds)
Body condition + settlement + water provision + age	7	-1357.02	2729.0	0	0.54
Body condition + settlement + water provision	6	-1358.29	2729.3	0.29	0.46
Guinea worm infection (reported history of infection or not)
Our field records (main analysis)
% fish consumed + water provision	3	-52.34	110.9	0	0.52
% fish consumed + water provision + settlement	4	-52.18	112.8	1.85	0.21
Longer-term CGWEP records (for validation)
Water provision + settlement	3	-49.89	106.0	0	0.54
Water provision + settlement + % fish consumed	4	-49.70	107.8	1.78	0.22