Table 1. Tests of the impact of Philornis downsi on Darwin's Finches.

Darwin's Finch Species	Nestling Hb Level	Nestling Growth	Fledging Success			Reference
			Obs*	Cor†	Exp‡
Geospiza fortis	-	N	-	Y	-	[23]
Geospiza fuliginosa α	Y	-	-	Y	-	[21]
Geospiza fuliginosa	-	-	-	Y	-	[24]
G. fortis & fuliginosa β	Y	Y	-	-	Y	[29]
G. fortis, fuliginosa & scandens β	-	-	Y	-	-	[19]
Camarhynchus pauper	-	-	Y	-	-	[13]
Camarhynchus heliobates	-	-	Y	-	-	[14]
4 species (3 genera)β , Ω	-	-	Y	-	-	[12]
6 species (4 genera)β , θ	-	-	-	Y	-	[22]

(Y, impact of parasite on host parameter detected; N, no impact detected; -, not tested).

*Observational data suggest P. downsi responsible for nestling mortality.

^†Correlational data show a negative relationship between parasite abundance and fledging success.

^‡Experimental nests fumigated to reduce parasite abundance.

^αDifferent islands pooled for analysis.

^βDifferent species pooled for analysis.

^ΩGeospiza fuliginosa, Camarhynchus parvulus, Cam. psittacula, Certhidea olivacea.

^θGeospiza fuliginosa, G. fortis, Camarhynchus parvulus, Cam. psittacula, Cactospiza pallida, Certhidea olivacea.