Mother-Offspring Relations: Prey Quality and Maternal Size Affect Egg Size of an Acariphagous Lady Beetle in Culture

Table 1

Linear regression equations and ANOVA statistics for the relationship of egg size versus femur length of predators (mothers).

Trial	Egg size	Equation	F	df	P	r	𝑟^2
1	Length	Y = 162.6 + 0.6X	6.0	1, 16	0.03	0.52	0.27
	Volume	Y = −0.02 + 0.007X	9.0	1, 16	0.008	0.60	0.36
	Perimeter	Y = 517.4 + 1.3X	10.4	1, 16	0.005	0.63	0.39
2	Length	Y = 110.7 + 0.7X	25.6	1, 20	< 0.001	0.75	0.56
	Volume	Y = 0.003 + 0.00002X	4.6	1, 20	0.045	0.43	0.19
	Perimeter	Y = 468.8 + 1.4X	41.4	1, 20	< 0.001	0.82	0.67

Simple linear regression, 𝑌=𝑏_𝑜+𝑏₁𝑋; Y represents egg length, volume or perimeter; 𝑏_𝑜 and 𝑏₁ represent the constant term and slope, respectively; X represents femur length. Length and perimeter are in μm units. Volume is in mm³ units. Regression equations reflect nontransformed data. See scatterplot (Figure 2) with regression lines of egg length versus femur length. Regression lines of egg perimeter versus femur length and egg volume versus femur length not plotted.