Fig. 1
From: Seabird nutrients increase coral calcification rates and boost reef carbonate production

Colony-scale growth metrics for submassive Isopora palifera and corymbose Acropora vermiculata next to an island with low seabird densities (low) and an island with high seabird densities (high). (A) linear extension rate (cm yr− 1), (B) planar area increase (cm2 cm− 2 yr− 1), (C) surface area increase (cm2 cm− 2 yr− 1), (D) volume increase (cm3 cm− 2 yr− 1), (E) skeletal bulk density (g cm− 3), and (F) calcification rate (g CaCO3 cm− 2 yr− 1). All metrics except A and E are normalized to initial surface area of each colony. Boxes represent the median and the interquartile range (IQR), with whiskers extending to 1.5 times the IQR and outliers represented by points.