Beneath the surface: correlates of solitary, paired, and group living in a cryptic burrowing ghost shrimp Trypaea australiensis Dana, 1852 (Decapoda: Axiidea: Calianassidae) Author Kirby, Renae L. Author Wong, Marian Y. L. text Journal of Crustacean Biology 2023 2023-07-11 43 3 1 10 http://dx.doi.org/10.1093/jcbiol/ruad035 journal article 10.1093/jcbiol/ruad035 1937-240X 10798495

Table 1. Odds ratios (OR), 95% confidence intervals (CI), and probability values (P) for multinomial logistic regression analyses for all individuals of Trypaea australiensis found within a particular burrow. Analyses considered effects of yearly season, site, carapace length (mm), and cheliped length (mm) on social structure, with a random effect of burrow identification added. Reference category selected for site is Shoalhaven Heads, and the reference category for season is winter. Bold probability values with (*) indicate statistical significance at P <0.05.

Predictor		Pairs vs. solitary			Groups vs. solitary			Groups vs. pairs
		OR	CI	P	OR	CI	P	OR	CI	P
Site	Moruya	1.84	1.20-2.82	0.005***	12.92	3.82-43.72	0.00***	0.15	0.056-0.4	0.000
	Port Hacking	2.20	1.48-3.28	0.000***	14.89	4.51-49.15	0.00***	0.16	0.062-0.42	0.000
	Shoalhaven Heads	Reference category			Reference category			Reference category
Season	Spring	2.80	1.71-4.57	0.000***	1.61	0.72-3.56	0.24	2.16	1.044-4.48	0.038
	Summer	2.45	1.46-4.094	0.001***	1.31	0.55-3.10	0.54	2.25	1.04-4.86	0.040
	Autumn	1.36	0.75-2.44	0.31	0.92	0.35-2.38	0.86	2.25	0.70-3.40	0.25
	Winter	Reference category			Reference category			Reference category
Body size	Carapace length	1.022	0.96-1.091	0.52	1.11	0.99-1.25	0.068	0.92	0.83-1.001	0.073
	Cheliped length	0.97	0.93-1.015	0.19	0.95	0.87-1.022	0.16	1.03	0.96-1.102	0.43