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In this study the substrate-borne stridulatory vibrations produced by Rhodnius prolixus females were recorded and analysed in two different behavioural contexts. In the context of sexual communication females spontaneously stridulated to reject copulatory attempts performed by males. These male-deterring stridulations were fully effective: out of 61 attempts, no copulation occurred. These stridulations consisted of short series of repetitive syllables, each one composed by a single chirp. In the context of defensive behaviour, bugs stridulated if they were clasped or restrained. These disturbance stridulations consisted of long series of repetitive syllables, each one composed by a series of short chirps and a long one. Male-deterring and disturbance stridulations differed in their temporal pattern and frequency spectra, having a main carrier frequency of about 1500 and 2200 Hz, respectively. As no differences in the inter-ridge distances along the whole stridulatory organ were found, the differences in the frequency between both signals could be explained on the basis of a different velocity of rubbing of the proboscis against the prosternal stridulatory organ. It was found that R. prolixus and the related species Triatoma infestans rubbed only the central region of the stridulatory groove (around 1/3 of the total length) to produce disturbance stridulations. The results are discussed in relation to previous work on vibrational sensitivity in R. prolixus and are also compared with results reported for T. infestans. Copyright (C) 2000 Elsevier Science B.V.


Documento: Artículo
Título:Two different vibratory signals in Rhodnius prolixus (Hemiptera: Reduviidae)
Autor:Manrique, G.; Schilman, P.E.
Filiación:Departamento De Cs. Biológicas, Facultad De Ciencias Exactas Y Naturales, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Palabras clave:Defensive behavior; Mechanoreception; Rhodnius prolixus; Sexual behavior; Stridulation; Vibratory communication; behavioral ecology; sexual behavior; vibration; animal behavior; animal experiment; article; controlled study; copulation; defensive behavior; female; frequency analysis; Hemiptera; male; nonhuman; Rhodnius; rhodnius prolixus; sexual behavior; Triatoma infestans; vibration; Animals; Defense Mechanisms; Female; Male; Rhodnius; Sexual Behavior, Animal; Vibration; Hemiptera; Reduviidae; Rhodnius prolixus; Triatoma infestans
Página de inicio:271
Página de fin:278
Título revista:Acta Tropica
Título revista abreviado:Acta Trop.


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---------- APA ----------
Manrique, G. & Schilman, P.E. (2000) . Two different vibratory signals in Rhodnius prolixus (Hemiptera: Reduviidae). Acta Tropica, 77(3), 271-278.
---------- CHICAGO ----------
Manrique, G., Schilman, P.E. "Two different vibratory signals in Rhodnius prolixus (Hemiptera: Reduviidae)" . Acta Tropica 77, no. 3 (2000) : 271-278.
---------- MLA ----------
Manrique, G., Schilman, P.E. "Two different vibratory signals in Rhodnius prolixus (Hemiptera: Reduviidae)" . Acta Tropica, vol. 77, no. 3, 2000, pp. 271-278.
---------- VANCOUVER ----------
Manrique, G., Schilman, P.E. Two different vibratory signals in Rhodnius prolixus (Hemiptera: Reduviidae). Acta Trop. 2000;77(3):271-278.