Table 2.

Analysis of similarities (ANOSIM) of diet proportions for each breeding location and stage between (a) breeders and chicks and (b) breeders and non-breeders. Sample sizes represent the number of samples that amplified over 100 prey sequences. Asterisk indicates significant difference.

sitestagen breedern chickRp-value
(a)
Béchervaise Islandchick-guard5455−0.0080.784
crèche3347−0.0070.575
Whitney Pointchick-guard2415−0.0050.403
crèche2524−0.0070.530
sitestagen breedern non-breederRp-value
(b)
Béchervaise Islandchick-guard54350.0620.025*
crèche33360.0330.069