Correction: Using marine isoscapes to infer movements of oceanic migrants: The case of Bulwer's petrel, Bulweria bulwerii, in the Atlantic Ocean.

[This corrects the article DOI: 10.1371/journal.pone.0198667.].

The Table 3 caption incorrectly appears as the fifth paragraph of the Results section. Please see the complete, correct Table 3 and Table 3 caption here. The publisher apologizes for the error.

Table 3

Correct classification rates (%) for colonies and non-breeding areas by feather, and discriminant functions using SIA.

			P1 correct		S8 correct		R6 correct
	Sample sizes		classification (%)		classification (%)		classification (%)
	Training	Testing	Training	Testing	Training	Testing	Training	Testing
Breeding colonies:
Vila	5	2	40.0	50.0	20.0	0.0	0.0	0.0
M. Clara	31	14	51.6	57.1	35.5	21.4	48.4	50.0
Raso	10	5	60.0	0.0	20.0	40.0	50.0	40.0
Cima	12	5	76.9	33.3	38.5	50.0	30.8	33.3
Total	58	26	42.4	40.7	32.2	29.6	40.7	40.7
Non-breeding areas
Central Atlantic	38	16	51.3	47.1	87.2	94.1	89.7	82.4
South Atlantic	21	9	61.9	77.8	76.2	88.9	66.7	77.8
Total	59	25	55.0	57.7	83.3	92.3	81.7	80.8
Discriminant functions:	Central Atlantic				South Atlantic
8th secondary (S8)	5.8×δ15 N − 116.2×δ13 C − 983.7				7.0×δ15 N − 118.8×δ13 C − 1043.9
6th rectrix (R6)	1.3×δ15 N − 79.0×δ13 C − 660.9				2.3×δ15 N − 82.2×δ13 C − 727.1

Correct classification rates (%) obtained using stable isotope analysis (δ15N and δ13C values) for P1, S8 and R6 of Bulwer’s petrel tracked with geolocation, and validation of the discriminant analyses using the testing data. Discriminant functions obtained using δ15N and δ13C values of S8 and R6 to infer the non-breeding areas of Bulwer’s petrel. For each feather, the higher result (for the Central or South Atlantic) indicates the belonging of the bird to that cluster.