Table 1 The correlations (r) and significance (p), determined by a Partial Mantel Test, between the bacterial community composition and biogeochemical factors in the sediment profile of Lake Y2.

From: Bacterial diversity is strongly associated with historical penguin activity in an Antarctic lake sediment profile

Type

Factor 1

Factor 2

r

0.228

0.028

p

0.002

0.338

  1. Note: Factor 1 comprises the geochemical parameters related to historical penguin activity, including the concentrations of typical elements of penguin guano (TP, Sr, Ba, Cu and Zn) as well as TN and TC in the sediments. Factor 2 consists of the non-biogenic parameters, which are not related to penguin activity, including the concentrations of Fe, Mn, Mg and Al in the sediments
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