|Publication Type:||Journal Article|
|Year of Publication:||1998|
|Authors:||M. Trabalon, Pourie, G., Hartmann, N.|
|Journal:||Insect Biochemistry and Molecular Biology|
|Keywords:||[Ovary / / ] [Agonistic behaviour / / Ovarian development, / / Ovarian development & cannibalism by females towards conspecifics], Behaviour, cannibalism by females towards conspecifics] [Hormones / / ] [Oogenesis, Circulatory system, Communication, compounds & ecdysteroid relationships] [Chemical signals / / ]., compounds & ecdysteroids] [Haemolymph / / Ecdysteroid levels &, conspecifics, cuticular, Endocrinology, females towards conspecifics] [Diet / / Cannibalism by females towards, Gametogenesis, Gonad, Integument, Nutrition, Relationships with ovarian development, Reproduction, Reproductive system, Tegenaria atrica (Araneae)., Tegenaria atrica [Cuticle / / Cuticular compounds & cannibalism by|
The present investigation was designed to study the relationships between the reproductive state of Tegenaria atrica females and their agonistic behavior towards conspecific females. Our results show that the virgin females exhibit the lowest levels of agonistic behavior whereas they provoke the highest levels of cannibalism by the mated females. The virgin females can be clearly distinguished from the other females as regards synthesis/release of cuticular compounds: methylesters and hydrocarbons. Furthermore, the ovaries of these females have not yet started vitellogenesis and the haemolymphatic ecdysteroids levels are high. It appears that the variation of females cannibalism parallels ovarian development and could be related to changes in cuticular compounds. Our results show for the first time that changes in spiders sexual and parental behavior during the reproductive cycle are accompanied by characteristic modifications in cuticular compounds, ovarian development as well as haemolymphatic ecdysteroid levels.
|URL:||<Go to ISI>://ZOOREC:ZOOR13500034484|