I did'nt advice it until I heard the recording at home, and made me laugh ;-). This insects drumms with the tarsus of one hind leg over the substrate, usually a leave.
Here it drums at 2", 14", 21", 31" and 42", but the recording is condensed; in the original one, the burts were made at, 15, 27, 41, 64 and 105 seconds, that is, there were 12, 14, 23 and 41 seconds in between . The bursts last 0.8, 1.1, 1.2 and 0.8 s. In the first two "echemes" that were analyzed, there was a pulse rate of 77.2 and 76.3, which is the double that what is commonly said (30-40/s at temperatures up to 25ºC, Ragge and Reynolds, 1998).
I have not serously filtered the recording, as it's easy to hear, although there are another artists (in order of appearence: Gryllus campestris, Alytes obstetricans, Mecome athalassinum and Uromenus rugosicollis). At 14.6" there is another unidentified sound, but could be a twig break.
Click here to listen (also download is possible by registering):
http://yourlisten.com/channel/content/16951059/Meconema_thalassinum_%281%29
Recorded the 25.vii.2011, 10:08 pm, 20ºC, in a hedgerow of a meadow in a stone oak Quercus ilex domain.
[Iberian peninsula: Catalonia: Girona province: Garrotxa: Beuda: Can Grau, 375 m][ICC map]
[It was used a FOSTEX FR 2LE field memory recorder, mode stereo BWF48/24 bits, connected to a an unidireccional microphone RODE NTG3 and a cardioid microphone SHURE SM58]
Cap comentari:
Publica un comentari a l'entrada