Table 2. Summary of variables included in GEE models used to predict clutch volume analyses.

i) BM	vi) BM + HT	xi) BM + ME
ii) BM + CS	vii) BM + CS + HT	xii) BM + CS + ME
iii) BM + HP + CS	viii) BM + HP + CS + HT	xiii) BM + HP + CS + ME
iv) BM+ MP + FP + CS	ix) BM+ MP + FP + CS + HT	xiv) BM+ MP + FP + CS + ME
v) BM + HP + FP + MP + CS	x) BM + HP + FP + MP + CS + HT	xv) BM + HP + FP + MP + CS + ME

Acronyms refer to included reproductive ecological traits from Table 1.