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Article dans une revue

An arboreal spider protects its offspring by diving into the water of tank bromeliads

Abstract : Cupiennius salei (Ctenidae) individuals frequently live in association with tank bromeliads, including Aechmea bracteata, in Quintana Roo (Mexico). Whereas C. salei females without egg sacs hunt over their entire host plant, females carrying egg sacs settle above the A. bracteata reservoirs they have partially sealed with silk. There they avoid predators that use sight to detect their prey, as is known for many bird species. Furthermore, if a danger is more acute, these females dive with their egg sacs into the bromeliad reservoir. An experiment showed that this is not the case for males or females without egg sacs. In addition to the likely abundance of prey found therein, the potential of diving into the tank to protect offspring may explain the close association of this spider with bromeliads. These results show that, although arboreal, C. salei evolved a protective behavior using the water of tank bromeliads to protect offspring. (C) 2018 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
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https://hal.inrae.fr/hal-02621666
Déposant : Migration Prodinra <>
Soumis le : mardi 26 mai 2020 - 03:11:45
Dernière modification le : vendredi 12 juin 2020 - 10:43:26

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Yann Hénaut, Bruno Corbara, Frédéric Azémar, Régis Cereghino, Olivier Dezerald, et al.. An arboreal spider protects its offspring by diving into the water of tank bromeliads. Comptes Rendus Biologies, Elsevier Masson, 2018, 341 (3), pp.196-199. ⟨10.1016/j.crvi.2018.02.002⟩. ⟨hal-02621666⟩

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