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Table 1 Effect of latitude, temperature, predator cue and their interactions on phenotypic traits: mass, head width, wing pad length, development time (dev. time), growth rate based on head width (GRH) and mass (GRM)

From: The effect of temperature and invasive alien predator on genetic and phenotypic variation in the damselfly Ischnura elegans: cross-latitude comparison

Variables

Df

Mass

Head width

Wing pad length

Dev. time

GRH

GRM

p

p

p

p

p

p

Latitude

1

< 0.001 (25.36)***

0.002 (9.76)**

0.759 (0.09)

< 0.001 (85.7)***

< 0.001 (56.1)***

< 0.001 (14.2)***

Temperature

1

0.009 (6.75)**

0.585 (0.30)

0.886 (0.02)

< 0.001 (1958)***

< 0.001 (1214)***

< 0.001 (356)***

Predator cue

1

< 0.001 (16.70)***

0.031 (4.66)*

0.138 (2.20)

< 0.001 (57.30)***

< 0.001 (45.95)***

< 0.001 (54.5)***

Latitude × temperature

1

0.038 (4.31)*

0.041 (4.19)*

0.533 (0.39)

< 0.001 (213.43)***

< 0.001 (57.49)***

< 0.001 (17.2)***

Latitude × predator cue

1

0.718 (0.13)

0.690 (0.16)

0.984 (0.00)

0.010 (6.72)**

0.071 (3.27

0.244 (1.36)

Temperature × predator cue

1

0.121 (2.40)

0.074 (3.19)

0.126 (2.35)

0.701 (0.15)

0.114 (2.49

0.019 (5.47)*

Latitude × temperature × predator cue

1

0.004 (8.40)**

0.019 (5.54)*

0.038 (4.32)*

0.657 (0.20)

0.348 (0.88

0.012 (6.35)*

  1. The effects of random factors are not shown
  2. Table shows p values and Wald Chi-squared statistic (in parentheses) for each variable. Significance is indicated in bold by ***p < 0.001, **p < 0.01, *p < 0.05