Table 6.

Fitted means and standard errors of the frequency of each social behaviour depending on housing pool for bottlenose dolphins (BDs). Outputs come from Wald chi-squared tests run on Generalized linear mixed models, significant outputs are bolded. For each species and each behaviour, items sharing the same letter did not differ significantly, items that do not share the same letter differ significantly (post-hoc tests with sequential Bonferroni correction).

Species		BDs
Pool		Small	Large	Both
Left Pectoral Contact	Mean	1.01	1.02	1.01
	SE	1.07	1.68	0.68
	Output	χ² = 10.33, df = 2, p = 0.006
	Pairwise	b	a	b
Right Pectoral Contact	Mean	1.02	1.03	1.01
	SE	0.01	0.01	0.01
	Output	χ² = 4.90, df = 2, p = 0.086
	Pairwise	a	a	b
Other Body Contact	Mean	1.01	1.01	1.02
	SE	0.70	0.62	1.29
	Output	χ² = 58.11, df = 2, p < 0.001
	Pairwise	b	b	a
Agonistic	Mean	1.25	1.31	1.54
	SE	0.11	0.13	0.20
	Output	χ² = 37.78, df = 2, p < 0.001
	Pairwise	b	b	a
Socio-Sexual	Mean	1.64	1.53	1.70
	SE	0.31	0.27	0.34
	Output	χ² = 2.48, df = 2, p = 0.288
	Pairwise
Social Play	Mean	1.28	1.26	1.82
	SE	0.09	0.08	0.22
	Output	χ² = 95.30, df = 2, p < 0.001
	Pairwise	b	b	a