Table 1. Alpha diversity measures based on a rarefaction depth of 2104.

Measure	LP mean	LP Std Dev	STS mean	STS Std Dev	t stat	p-value
Observed otus	25.05	4.998	32.83	4.978	-2.467	0.025
Shannon's	2.241	1.017	3.086	0.389	-1.737	0.103
Simpson	0.597	0.211	0.793	0.058	-1.995	0.077

Statistical comparison was the non-parametric t-test implemented by QIIME v 1.8 with 1000 bootstrap replicates. LP = little penguin, STS = short tailed shearwater