Table 1.

Results of nested ANOVAs examining the effects of habitat type (springs vs. ponds) and population within habitat type on the dry mass of stage 4 and 5 embryos

Year	Effect	df	F	P
2000	Pop (Habitat)	5, 108	3.89	0.0028
	Habitat	1, 5	5.03	0.075
2001	Pop (Habitat)	5, 106	2.09	0.072
	Habitat	1, 5	11.00	0.021
2002	Pop (Habitat)	6, 97	2.61	0.022
	Habitat	1, 6	8.90	0.025
2003	Pop (Habitat)	3, 80	10.04	<0.0001
	Habitat	1, 3	0.84	0.43
2004	Pop (Habitat)	5, 86	6.58	<0.0001
	Habitat	1, 5	3.56	0.12
2005	Pop (Habitat)	5, 90	5.01	0.0004
	Habitat	1, 5	0.53	0.50
2006	Pop (Habitat)	4, 71	3.71	0.0085
	Habitat	1, 4	10.42	0.032
2007	Pop (Habitat)	3, 59	10.96	<0.001
	Habitat	1, 3	0.04	0.85
2009	Pop (Habitat)	6, 86	3.66	0.0028
	Habitat	1, 6	1.12	0.33