Table 1.

Multivariate generalized linear model results for both plant families and genera of plant family Asteraceae. (The sample size (n), β, β s.e., t-value and p-value are provided for each independent variable in each model.)

model and response variables	independent variables	n	β	β s.e.	t-value	p-value
plant family insularity alone
Cecidomyiid species richness	plant family insularity	88	−1.714	0.500	−3.424	0.0009
all plant families
Cecidomyiid species richness	plant family insularity	88	−1.440	0.591	−2.435	0.01
Cecidomyiid species richness	plant family range size	88	3.95 × 10−8	1.65 × 10−8	2.398	0.01
Cecidomyiid species richness	plant-lineage age	88	−0.216	0.398	−0.543	0.58
Cecidomyiid species richness	plant family species richness	88	0.571	0.145	3.922	<0.01
Asteraceae genus insularity alone
Cecidomyiid species richness	plant genus insularity	50	−1.816	0.4552	−3.990	0.0002
Asteraceae
Cecidomyiid species richness	plant genus insularity	50	−1.631	0.401	−4.067	<0.0001
Cecidomyiid species richness	plant genus species richness	50	0.204	0.079	2.568	<0.05
Cecidomyiid species richness	plant maximum height	50	0.334	0.161	2.07	<0.05