Table 5.

Regressions for non-phylogenetic and phylogenetic tests.

	Residual total species richness		Residual genus richness		Residual Ischnocera species richness		Residual Amblycera species richness
	Actual Values	Contrasts	Actual Values	Contrasts	Actual Values	Contrasts	Actual Values	Contrasts
Body Mass		-				-		-
Wingspan							+
Body Size		-				-
Bill Length
Longevity	+						+
Clutch Size	-		-		-
Population Size	+	+	+	+	+	+	+	+
Geographic range		+	-	+		+		+
Diving behaviour				+

Simple regressions for single variables controlled for sampling effort using the residuals from Google Scholar citation counts. Signs indicate whether the slope was negative or positive.