Table 1

Geographic origins of samples inferred using the SAM

Georeferenced SAM assignments

% Accuracy of georeferenced SAM assignments

LWC SAM assignments


ISFR

GGNP

AKZN

CRNP

MSSE

MTCM

MANB

DEFR

CMNP

DJBR

Location1,2

Region3,4

ISFR

3

0

0

0

1

0

0

0

0

0

75

100

0

GGNP

0

6

1

0

1

2

0

0

0

0

60

100

9

AKZN

0

1

4

2

3

1

0

0

0

0

36

100

1

CRNP

0

0

1

5

0

1

0

0

0

1

63

88

1

MSSE

0

1

1

0

5

1

0

0

0

0

63

100

6

MTCM

0

0

1

0

0

10

0

0

0

0

91

100

15

MANB

0

0

0

0

0

1

4

4

1

0

40

50

3

DEFR

0

0

0

1

0

0

2

4

0

1

50

63

0

CMNP

0

0

0

0

0

0

0

0

5

3

63

100

4

DJBR

0

1

0

0

0

0

0

3

2

4

40

90

7


1Percentage of georeferenced sample assignments using the SAM that were correctly assigned to their actual sampling location of origin.

2Average accuracy, 58%.

3Percentage of georeferenced sample assignments using the SAM that were correctly assigned back to their regional division but not necessarily their correct sampling location of origin. Two regions were considered: 1) sampling locations that lie north and west of the Sanaga River in Nigeria and western Cameroon [ISFR, GGNP, AKZN, CRNP, MSSE, MTCM and MANB] and 2) sampling locations that lie south of the Sanaga River in southern Cameroon [DEFR, CMNP and DJBR]. Samples from the transition zone (MANB) in central Cameroon were grouped with samples north of the Sanaga to obtain these estimates.

4Average accuracy, 89%.

Ghobrial et al. BMC Ecology 2010 10:2   doi:10.1186/1472-6785-10-2

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