Table 2.

Experiment 2 results showing δ¹⁵N and δ¹³C mean ± SE for adult male and female Cx. pipiens from the natural abundance, control, and stable isotope enriched mosquitoes at different days post-emergence

Mosquito	δ15N			δ13C
	n	Mean ± SEa	Tukey’s HSDb	n	Mean ± SE	Tukey’s HSD
Natural abundancec
Male	19	4.0 ± 0.9	A	19	−28.1 ± 0.6	A
Female	5	1.3 ± 0.8	a	5	−25.4 ± 0.4	a
Control
Male	10	10.7 ± 0.2	A	10	−22.5 ± 0.8	A
Female	2	9.5, 11.0	a	2	−19.2, ±19.2	a
Larvae	3	10.9 ± 0.5	A	3	−19.2 ± 0.3	A
Low treatmentd
Zero days post-emergence
Male	3	165.5 ± 9.2	B	4	108.3 ± 20.3	C
Female	3	164.8 ± 11.3	b	2	78.9, 99.9	b
Larvae	3	217.8 ± 2.9	BC	3	76.1 ± 3.6	BC
Poole	2	25.6, 47.6	A	2	0.6, 44.7	AB
Five days post-emergence
Male	4	190.0 ± 19.4	B	3	27.0 ± 1.9	B
Female				4	26.7 ± 12.3	a
Twenty-five days post-emergence
Male	4	169.5 ± 12.2	B	2	10.2, 41.8	AB
Female				4	1.5 ± 2.7	a
High treatment
Zero days post-emergence
Male	4	264.2 ± 37.8	C	2	283.1, 320.4	D
Female	2	169.0, 187.3	b
Larvae	3	185.3 ± 3.7	B	3	264.6 ± 12.5	D
Five days post-emergence
Male				3	125.2 ± 42.0	C
Female				2	84.3, 258.3	b
Twenty-five days post-emergence
Male	5	222.3 ± 23.1	BC	4	89.5 ± 17.8	BC
Female				1	71.6	ab

^aWhen sample size was less than three, actual values are presented.

^bTukey’s HSD test for differences among means (P < 0.05) were run separately for males and females and results are provided as upper case letters and lower case letters, respectively. Larvae and pools were included with the males for the post-hoc tests.

^cCx pipiens collected from seven different catch basins in 2009.

^dStable isotope concentrations were 0.33 and 1.04 atom% ¹⁵N and 0.24 and 0.76 atom% ¹³C for the low and high treatment, respectively.

^ePool contained one adult female from ¹⁵N treatment and four natural abundance adult females collected from the field.