Bioacoustics Theories - Soundscape Ecology: Principles, Patterns, Methods and Applications - page 51

Fig. 3.8 Average
reverberation index for
deciduous forest in winter
before foliage has emerged
( left ) and in summer with
full vegetation ( right ).
(Reproduced with
permission from Naguib
2003 )

0.3

***

0.25

0.2

0.15

0.15

0.05

0

without leaves with leaves

Fig. 3.9 Level of
reverberation of trills with
element repetition rates of
10 ms obtained at different
frequencies and playback
in deciduous forest before
foliage emerged
(November) ( a ) and
deciduous with foliage
(July) ( b ) (Reproduced
with permission
from Naguib 2003 )

a ***

0.35

*

0.3

0.25

0.2

0.15

0.1

0.05

0

1000 3500

Frequency (Hz)

7000

b

***

0.35

*

0.3

0.25

0.2

0.15

0.1

0.05

0

1000 3500

Frequency (Hz)

7000