Sex Role–Dependent Behavioral and Architectural Divergence in a Jumping Spider

  Sex Role–Dependent Behavioral and Architectural Divergence in a Jumping Spider ABSTRACT Sex differences in behavior and functional traits are often attributed to differences in mating effort intensity, but the role of sex-specific parental demands remains poorly understood. Using the jumping spider Toxeus maxillosus —where males engage in mate searching and courtship without providing parental care, while females provide extended maternal care from egg attendance to offspring maturity (around 3 months)—we conducted an exploratory investigation into whether these distinct selective pressures led to divergence in spatial behaviors and nest architecture. Results revealed that males and females showed equivalent accuracy, latency, and learning-related performance in both a route-planning test under water stress and a color-pattern associative memory task. In contrast, during nest-construction assays, females built complex, multi-entrance structures that closely matched the container'...

Arachnides : Bulletin de bibliographie et de recherches, n° 125 (2026)

 

Arachnides : Bulletin de bibliographie et de recherches, n° 125 (2026)

Gerard Dupre has granted permission to Jan Ove Rein to post this material and to maintain an archive of the journal Arachnides within a dedicated repository on The Scorpion Files website. All related issues may be posted in this repository, and additional issues will be added as they become available.