The Company of Biologists

Table 2.

Summary of ANOVA and ANCOVA (with body mass of a fed flea as a covariate) of mass-specific and mass-independent rates of CO₂emission, respectively, at different stages (digestion stage factor) ofA. cahirinus or G. dasyurus (host factor) blood digestion by male and female (sex factor) P. chephrenis

Analysis	Effect	d.f.	F
ANOVA	Host	1	56.5^**
	Sex	1	15.9^**
	Digestion stage	2	4.06^*
	Host × sex	1	8.2^**
	Host × digestion stage	2	11.6^**
	Error	108
ANCOVA	Host	1	22.8^**
	Sex	1	7.2^**
	Digestion stage	2	3.3^*
	Host × sex	1	6.5^**
	Host × digestion stage	2	6.3^**
	Host × sex × digestion stage	2	3.4^*
	Error	109

Analysis	Effect	d.f.	F
ANOVA	Host	1	56.5^**
	Sex	1	15.9^**
	Digestion stage	2	4.06^*
	Host × sex	1	8.2^**
	Host × digestion stage	2	11.6^**
	Error	108
ANCOVA	Host	1	22.8^**
	Sex	1	7.2^**
	Digestion stage	2	3.3^*
	Host × sex	1	6.5^**
	Host × digestion stage	2	6.3^**
	Host × sex × digestion stage	2	3.4^*
	Error	109

Only significant interactions are shown: ^*P<0.05, ^**P<0.001.

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