TY - JOUR T1 - Barriere ethologique et complementarite des signaux chez deux especes sympatriques de tegenaires (Araneae, Agelenidae) JF - Biology of Behaviour Y1 - 1986 A1 - Boulanger, P. A1 - Leborgne, R. A1 - Kraft, B. SP - 145 EP - 156 KW - [Tactile signals / / significance for reproductive isolation] [Webs / KW - / Tactile courtship signals KW - Animal constructions KW - Behaviour KW - Communication KW - courtship behaviour & tactile signals significance] KW - Ecology KW - Evolution KW - Reproduction KW - reproductive KW - Reproductive behaviour KW - reproductive isolation significance]. KW - Speciation KW - Tegenaria domestica KW - Tegenaria domestica (Araneae). KW - Tegenaria pagana (Araneae). KW - Tegenaria pagana [Courtship / / Tactile signals KW - use & reproductive isolation significance] [Evolutionary isolation / / AB - The aim of this paper was to study behavioural factors which can intervene in the reproductive isolation of the two sympatric species Tegenaria domestica and Tegenaria pagana, which are very close in systematic and present few morphological differences. In particular, we studied the modalities of the expression of courtship behavior. The behaviours were observed and the vibratory signals were recorded and analysed. The results show that it is possible to easily differentiate the two species. Indeed, male "motifs" of T. domestica are relatively simple and discreet, while those of male of T. pagana are more complex, with many acts' units performed repetitively. Adult males of the two species were tested on conspecific or heterospecific webs in the presence or absence of an adult female. On conspecific web, male courtship (in both species) can be diplayed in the absence of the female. On heterospecific web, with or without a female, courships are scarce for the two species. However, female of T. domestica show a particular vibration of their first legs, which could facilitate the release of courtship even on the web of T. pagan. These results corroborate the importance of silk structures as a means of communication which can participate in specific sexual recognition and in courtship. VL - 11 SN - 0397-7153 UR - ://ZOOREC:ZOOR12400007077 N1 - ZOOR12400007077 ER -