Comparison of transmission parameters between Anopheles argyritarsis and Anopheles pseudopunctipennis in two ecologically different localities of Bolivia

Table 5 Forage ratios for Anopheles pseudopunctipennis and Anopheles argyritarsis

Experiment	Species	% that fed on man	Forage ratios
			Man	Sheep	Donkey	Goat	G-test
May 2010	An. pseudopunctipennis	38.1%	1.53 (0.17)	0.55 (0.12)	[0.31– 0.78]	0.58 (0.12)	26.6 (P < 0.05)
	An. pseudopunctipennis	38.1%	[1.19-1.86]	[0.31– 0.78]	[1.02–1.67]	[0.34–0.82]	26.6 (P < 0.05)
	An. argyritarsis	7.1%	0.28 (0.27)	0 (−)	3.42 (0.37)	[2.69–4.16]	-
	An. argyritarsis	7.1%	[0–0.82]	[−]	[2.69–4.16]	[0–0.82]	-
June 2010	An. pseudopunctipennis	38.5%	1.15 (0.10)	1.46 (0.11)	-	0.39 (0.07)	47.9 (P < 0.05)
	An. pseudopunctipennis	38.5%	[0.96-1.35]	[1.25–1.66]	-	[0.25–0.52]	47.9 (P < 0.05)
	An. argyritarsis	20.6%	0.62 (0.21)	1.42 (0.26)	-	0.97 (0.24)	3.6 (P = 0.16)
	An. argyritarsis	20.6%	[0.33–1.42]	[1.43–2.56]	-	[0–0.36]	3.6 (P = 0.16)
April 2011	An. pseudopunctipennis	44.0%	1.32 (0.21)	1.02 (0.20)	0.66 (0.17)	-	3.75 (P = 0.15)
	An. pseudopunctipennis	44.0%	[0.91–1.73]	[0.62–1.41]	[0.31–1.00]	-	3.75 (P = 0.15)
	An. argyritarsis	10.5%	0.32 (0.21)	1.42 (0.34)	1.26 (0.34)	-	5.4 (P = 0.06)
	An. argyritarsis	10.5%	[0–0.73]	[0.75–2.09]	[0.60–1.92]	-	5.4 (P = 0.06)
June 2011	An. pseudopunctipennis	25.0%	1.00 (0.33)	0.43 (0.23)	2.43 (0.37)	0.14 (0.14)	21.2 (P < 0.05)
June 2011	An. pseudopunctipennis	25.0%	[0.36–1.64]	[0–0.88]	[1.70–3.15]	[0–0.42]	21.2 (P < 0.05)
	An. argyritarsis	0.0%	0 (−)	1.00 (0.86)	3.00 (0.86)	0 (−)	-
	An. argyritarsis	0.0%	[−]	[0–2.70]	[1.30–4.70]	[−]	-
Overall	An. pseudopunctipennis	38.1%
	An. pseudopunctipennis	n = 417
	An. argyritarsis	14.1%
		n = 71

Proportion of mosquitoes that fed on man, forage ratios (error standard in parenthesis; 95% confidence intervals in brackets) for each of the vertebrate baits during the four mosquito-net experiments, and the associated G-tests with their probability P. A forage ratio >1 indicates preference, while <1 indicates avoidance. For the G-tests, when P < 0.05 the null hypothesis of equal use of resources can be rejected. n = total number of mosquitoes captured during the four experiments (overall).

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