Mauduit Emilie, Jeanson Raphaël
Centre de Recherches sur la Cognition Animale (UMR5169), Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, 31062 Toulouse cedex 09, France.
J Exp Biol. 2023 Apr 1;226(7). doi: 10.1242/jeb.245387. Epub 2023 Apr 5.
In many taxa, the subsocial route is considered the main pathway to permanent sociality, but the relative contribution of offspring interactions and parental care to the maintenance of cohesion and tolerance at advanced developmental stages remains poorly studied. Spiders are relevant models for this question because they all show a transient gregarious phase before dispersal, and the transition to permanent sociality, which concerns approximately 20 of the ∼50,000 species, is assumed to rely on the subsocial route. Using spiderlings of the solitary species Agelena labyrinthica, we manipulated the social context to demonstrate that tolerance in aggressive juveniles can be restored when exposed to siblings after moulting. We propose that moulting can reopen closed critical periods and renew the imprinting to social cues and thus lead to the reacquisition of tolerance. Our study highlights the critical role of contacts between juveniles in the expression of tolerance, which opens novel avenues for understanding social transitions.
在许多分类群中，亚社会性路径被认为是通向永久性社会性的主要途径，但在发育后期，后代互动和亲代抚育对维持群体凝聚力和容忍度的相对贡献仍未得到充分研究。蜘蛛是研究这个问题的相关模型，因为它们在扩散前都表现出一个短暂的群居阶段，并且向永久性社会性的转变（约50000种蜘蛛中约有20种涉及此转变）被认为依赖于亚社会性路径。我们使用独居物种迷宫漏斗蛛的幼蛛，通过操纵社会环境来证明，攻击性幼蛛在蜕皮后与兄弟姐妹接触时，其容忍度可以恢复。我们提出，蜕皮可以重新开启封闭的关键期，并重新建立对社会线索的印记，从而导致容忍度的重新获得。我们的研究强调了幼蛛之间的接触在容忍度表达中的关键作用，这为理解社会转变开辟了新途径。
