Table 1 Composition of receptive Ficus triloba odours at the different sites

Fatty acid derivatives

1005

(E)-3-hexenyl acetate

9

0.77 ± 1.84

5

1.47 ± 3.92

4

1.26 ± 1.2

1102

Nonanal

6

0.38 ± 0.57

1

0 ± 0.01

0

1203

Decanal

3

0.04 ± 0.1

1

0 ± 0.02

0

Sum

1.19

1.47

1.26

Monoterpenes

934

α-Pinene

3

0.02 ± 0.05

1

0 ± 0.02

1

0.01 ± 0.01

973

Sabinene

2

0 ± 0.01

1

0 ± 0.02

0

979

β-Pinene

0

1

0 ± 0

0

984

6-Methyl-5-hepten-2-one

7

0.16 ± 0.2

7

0.17 ± 0.31

2

0.39 ± 0.74

991

β- Myrcene

3

0.01 ± 0.03

5

0.18 ± 0.31

0

1030

Limonene

7

0.73 ± 1.2

6

0.18 ± 0.42

2

0.47 ± 0.84

1048

(Z)-β-Ocimene

2

0.03 ± 0.07

0

0

1101

Linalool

4

0.03 ± 0.09

2

0.7 ± 2.61

0

Sum

0.98

1.23

0.87

Sesquiterpenes

1343

δ-Elemene

10

0.92 ± 1.46

15

1.78 ± 1.61

4

1.25 ± 0.06

1355

α-Cubebene

10

1.16 ± 1.7

8

0.92 ± 2.4

4

5.4 ± 0.91

1365

α-Ylangene

9

1.11 ± 1.06

8

0.66 ± 1.3

1

0.01 ± 0.02

1375

Cyclosativene

11

1.49 ± 1.99

6

1.21 ± 3.08

4

0.37 ± 0.1

1382

Isoledene

9

0.38 ± 0.54

7

2.79 ± 8.58

0

1384

α-Copaene

11

9.83 ± 14.8

15

7.11 ± 16.88

4

54.21 ± 7.5

1392

β-Bourbonene

11

1 ± 0.85

9

0.36 ± 0.49

4

0.05 ± 0.01

1387

β-Cubebene

8

0.92 ± 1.12

5

0.68 ± 1.52

4

2.63 ± 0.93

1389

β-Elemene

6

0.52 ± 0.8

11

1.5 ± 1.67

3

1.34 ± 2.63

1410

(E)-α- bergamotene

3

0.3 ± 0.71

1

0.1 ± 0.38

0

1425

α-Cedrene

11

0.13 ± 0.13

6

0.18 ± 0.32

0

1427

α-Gurjunene

4

0.1 ± 0.2

7

0.25 ± 0.91

3

0.03 ± 0.02

1429

cis-Thujopsene

10

18.32 ± 16.46

5

15.45 ± 25.21

0

1430

(E)-β-caryophyllene

13

21.47 ± 8.68

11

27.16 ± 21.18

4

14.15 ± 4.05

1435

β-Copaene

11

1.21 ± 1.31

11

2.97 ± 2.27

4

2.21 ± 0.84

1440

(Z)- α-bergamotene

2

0.02 ± 0.04

2

0.01 ± 0.02

0

1446

(Z)-β-farnesene

0

4

0.33 ± 0.7

0

1454

Alloaromadendrene

5

0.3 ± 0.43

9

0.91 ± 0.82

3

0.51 ± 0.41

1457

(E)-β-farnesene

13

6.74 ± 3.65

13

4.87 ± 4.57

4

1.26 ± 1.35

1463

α-Humulene

8

2.73 ± 2.99

11

4.71 ± 3.62

3

1.48 ± 1.02

1482

γ-Muurolene

13

1.55 ± 0.56

12

3.79 ± 5.64

0

1488

Germacrene D

11

6.55 ± 6.42

12

8.92 ± 8.18

4

5.33 ± 2.12

1494

α-Selinene

5

0.11 ± 0.19

1

0.28 ± 1.09

1

0.09 ± 0.18

1503

α-Bulnesene

6

0.15 ± 0.26

10

1.23 ± 1.83

0

1505

α-Muurolene

13

5.16 ± 4.5

10

2.67 ± 2.64

4

1.99 ± 0.44

1510

β-bisabolene

4

0.72 ± 1.66

2

0.11 ± 0.39

0

1520

γ-cadinene

10

0.54 ± 0.72

15

1.49 ± 2.14

4

0.03 ± 0.02

1528

δ-Cadinene

10

3.19 ± 3.82

11

1.99 ± 1.47

3

2.48 ± 1.78

Sum

86.62

94.43

94.82

Unknown compounds

1318

Unknown1

6

0.48 ± 0.98

2

0.04 ± 0.11

0

1359

Unknown2

4

0.1 ± 0.29

0

0

1378

Unknown3

5

0.36 ± 0.9

4

0.1 ± 0.19

0

1395

Unknown4

10

0.83 ± 0.68

9

0.45 ± 0.87

1

0.01 ± 0.02

1451

Unknown5

10

1.59 ± 1.36

2

0.31 ± 1.17

0

1465

Unknown6

13

7.11 ± 3.52

13

1.86 ± 1.49

4

3.04 ± 0.23

1480

Unknown7

10

0.73 ± 1.13

7

0.11 ± 0.2

2

0.01 ± 0.01

Sum

11.2

2.87

3.06

Main fragments (m/z) for unknown compounds

Unknown1

121, 93, 90, 91, 80, 105, 75, 133, 60, 107

Unknown2

189, 147, 40, 133, 38, 133

Unknown3

161, 105, 55, 121, 45, 91

Unknown4

119, 93, 90, 91

Unknown5

162, 147, 70, 105, 50, 91/

Unknown6

93, 91, 60, 105, 40, 79

Unknown7

69, 93, 95, 105, 85, 91