Table 2 Durations of different movement steps of the respective trapdoor movement types.

From: Trap diversity and character evolution in carnivorous bladderworts (Utricularia, Lentibulariaceae)

Species & number of traps investigated (n)

Trapdoor type

Duration of initial trapdoor movement after triggering [ms]

Trapdoor opening duration [ms]

Trapdoor closure duration [ms]

min

max

mean and standard deviation

min

max

mean and standard deviation

min

max

mean and standard deviation

U. uniflora, n = 8

UUTT1

19

2564

632.1 ± 823.5

4

8

5.3 ± 1.2

11

1240

238.5 ± 405.8

U. dichotoma, n = 3

UUTT1

5

19

11 ± 5.9

2

5

4 ± 1.4

12

75

42.3 ± 25.8

U. menziesii, n = 6

UUTT2

4

9

6.5 ± 2.0

2

5

3.2 ± 1.1

3

75

20.2 ± 26.5

U. rostrata, n = 1

UUTT3 or 4

Included in trapdoor opening duration

6

10

U. warburgii, n = 6

UUTT3

5

74

24.2 ± 26.9

3

5

3 ± 1.5

2

36

12 ± 11.4

U. welwitschii, n = 5

UUTT4

4

10

5.75 ± 2.5

2

5

3.2 ± 1.0

5

10

6.2 ± 1.9

U. livida, n = 3

UUTT4

2

3

2.7 ± 20.5

2

2

2 ± 0.0

7

12

10.3 ± 2.4

U. cornuta, n = 4

UUTT3

4

5

4.7 ± 0.5

1

8

4 ± 2.5

9

27

18.3 ± 7.9

U. prehensilis, n = 10

UUTT3

1

29

11.4 ± 7.2

3

6

4.1 ± 1.0

8

21

13.4 ± 4.0

U. calycifida, n = 7

UPTT

5

7

6.4 ± 0.7

2

3

2.7 ± 0.5

10

26

16.7 ± 4.9

U. longifolia, n = 7

UPTT

6

7

6.5 ± 0.5

2

3

2.1 ± 0.3

12

20

15.3 ± 3.0

U. praelonga, n = 7

UPTT

6

46

15 ± 13.1

3

4

3.4 ± 0.5

11

33

20.3 ± 7.5

U. alpina, n = 1

UPTT

12

12

12

3

3

3

6

6

6

U. reniformis, n = 3

UPTT

4

18

9 ± 6.4

3

4

3.7 ± 0.5

20

52

38.3 ± 13.5

U. resupinata, n = 3

UVTT2

7

12

10 ± 2.2

5

9

7.3 ± 1.7

4

17

12 ± 5.7

U. flaccida, n = 2

UPTT

7

11

9 ± 2.0

2

3

2.5 ± 0.5

6

21

13.5 ± 7.5

U. gibba, n = 9

UVTT1

4

10

6.7 ± 1.8

3

11

7.9 ± 2.2

15

40

27.1 ± 6.9

U. aureomaculata, n = 4

UPTT

5

17

8.8 ± 4.8

2

3

2.3 ± 0.4

8

30

22.3 ± 8.6

  1. Abbreviations: UPTT = U. praelonga trapdoor type; UUTT = U. uniflora trapdoor type; UVTT = U. vulgaris trapdoor type. In U. rostrata, the duration of initial trapdoor movement after triggering could not be distinguished from the trapdoor opening duration.