Table 2.

Posterior means and lower and upper 95% higher posterior density credibility intervals (LCI, UCI) for all predictors, random-effect variance parameters and sample sizes at each level of random effect for the four models investigating factors affecting growth between 1 and 18 months of age. The probability that a fixed-effect estimate does not differ from zero is provided by the pMCMC values. Fixed effects (apart from the intercept) with pMCMC < 0.05 are highlighted in bold. For categorical variables, the level estimated, relative to the baseline intercept level, is provided in parentheses (‘D’ denotes dominant and ‘F’ denotes female)

Predictors	Growth 1–3 months		Growth 4–6 months		Growth 10–12 months		Growth 16–18 months
	Posterior mean [LCI, UCI]	pMCMC	Posterior mean [LCI, UCI]	pMCMC	Posterior mean [LCI, UCI]	pMCMC	Posterior mean [LCI, UCI]	pMCMC
Intercept	2·915 [2·728, 3·109]	0·001	1·461 [1·312, 1·625]	0·001	0·579 [0·398, 0·782]	0·001	0·176 [0·008, 0·361]	0·048
Mass at start	0·224 [0·142, 0·301]	0·001	0·176 [0·119, 0·236]	0·001	−0·064 [−0·122, −0·005]	0·028	−0·135 [−0·213, −0·057]	0·001
Season (sine)	−0·031 [−0·144, 0·094]	0·632	0·017 [−0·095, 0·142]	0·754	−0·121 [−0·265, 0·023]	0·112	−0·033 [−0·161, 0·091]	0·638
Season (cosine)	0·214 [0·14, 0·302]	0·001	0·153 [0·068, 0·242]	0·002	0·320 [0·207, 0·421]	0·001	0·004 [−0·086, 0·091]	0·932
Rain in past 60 days	0·273 [0·123, 0·433]	0·001	0·335 [0·167, 0·499]	0·001	0·306 [0·104, 0·525]	0·001	0·172 [0·006, 0·342]	0·052
Number of adults	0·151 [0·012, 0·280]	0·02	−0·101 [−0·231, 0·032]	0·126	0·091 [−0·047, 0·234]	0·19	−0·015 [−0·133, 0·089]	0·78
(Number of adults)2	0·092 [−0·085, 0·246]	0·294	−0·007 [−0·193, 0·153]	0·942	−0·066 [−0·281, 0·135]	0·518	−0·065 [−0·274, 0·146]	0·532
Number of pups	−0·112 [−0·238, 0·008]	0·088	0·036 [−0·092, 0·165]	0·592	−0·078 [−0·210, 0·062]	0·3	0·084 [−0·057, 0·218]	0·24
Maternal status (D)	0·204 [0·020, 0·377]	0·022	−0·001 [−0·138, 0·147]	0·998	−0·067 [−0·230, 0·11]	0·466	0·062 [−0·095, 0·236]	0·458
Maternal age	0·035 [−0·153, 0·19]	0·678	−0·025 [−0·179, 0·119]	0·740	−0·07 [−0·258, 0·105]	0·456	0·156 [−0·011, 0·334]	0·088
(Maternal age)2	−0·051 [−0·212, 0·116]	0·542	0·062 [−0·090, 0·209]	0·420	0·175 [−0·008, 0·33]	0·044	−0·047 [−0·191, 0·118]	0·572
sex (F)	−0·018 [−0·053, 0·017]	0·332	−0·055 [−0·087, −0·025]	0·002	−0·054 [−0·089, −0·023]	0·004	−0·015 [−0·066, 0·037]	0·552

Variance	Posterior mean [LCI, UCI]	N	Posterior mean [LCI, UCI]	N	Posterior mean [LCI, UCI]	N	Posterior mean [LCI, UCI]	N
Litter	0·243 [0·200, 0·289]	365	0·231 [0·192, 0·27]	348	0·302 [0·255, 0·358]	322	0·192 [0·15, 0·227]	292
Mother	0·024 [0·001, 0·053]	113	0·004 [0·000, 0·013]	110	0·004 [0·000, 0·013]	102	0·004 [0·000, 0·011]	96
Group	0·015 [0·000, 0·042]	25	0·003 [0·000, 0·009]	24	0·019 [0·001, 0·052]	26	0·004 [0·000, 0·011]	22
Residual	0·078 [0·071, 0·087]	1252	0·053 [0·048, 0·058]	1115	0·051 [0·046, 0·057]	963	0·093 [0·081, 0·105]	776