Gut microbiome composition, not alpha diversity, is associated with survival in a natural vertebrate population

Table 2 A Generalised Linear Model investigating the association between gut microbiome alpha diversity (Shannon diversity) and survival in the Seychelles warbler

Predictor	Estimate	SE	z	P_adj
Intercept	1.515	0.610	2.483	0.013
Shannon	− 0.117	0.378	− 0.308	0.888
Age class
Fledgling	− 0.275	0.564	− 0.487	0.626
Old fledgling	− 1.073	0.503	− 2.134	0.042
Sub-adult	0.954	0.583	1.637	0.123
Sex (male)	− 0.484	0.372	− 1.300	0.230
Territory quality	1.246	0.699	1.782	0.075
Sample year
2018	0.599	0.724	0.827	0.408
2019	0.326	0.744	0.439	0.661

Significant (P_adj < 0.05) predictors are shown in bold; P values were corrected for multiple hypothesis testing using the Benjamini and Hochberg method- this was to control for the use of different alpha diversity metrics (results for other metrics are shown in Additional file 1: Table S4). Reference categories for categorical variables were as follows: adult (age class), female (sex) and 2017 (sample year). N = 264 samples/individuals were included in the analysis (226 individuals survived, 38 individuals died by the next breeding season)

ISSN: 2524-4671