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      Phoretic relationship between Lustrochernes grossus (Pseudoscorpionida: Chernetidae) and Odontotaenius striatopunctatus (Coleoptera: Passalidae) Translated title: Relación forética entre Lustrochernes grossus (Pseudoscorpionida: Chernetidae) y Odontotaenius striatopunctatus (Coleoptera: Passalidae)

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          Abstract

          Abstract: Phoresy is considered a non-parasitic partnership between a small animal (phoront) and a large one (host) that result in phoront transportation by the host. Throughout two years of observation and nursing of 16 family groups of the passalid Odontotaenius striatopunctatus, we noticed the presence of the pseudoscorpion Lustrochernes grossus within 11 of their 16 nests, which consisted of rotten wood logs (30 cm long × 15-20 cm in diameter) cut into 2 cm segments and secured with rubber bands to facilitate observation. The presence of pseudoscorpions became evident from the moment the passalids started building their nests creating space and food for their young. Evidence was found that pseudoscorpions can go under the elytra of passalids. Their presence did not prevent the reproduction of the beetles, performed in 13 of the 16 set nests (Fischer's exact test: P = 0.71, N = 16): neither was the number of passalids offspring modified (Mann Whitney U = 11.50, P = 0.2553). On three occasions during spring, L. grossus females carrying brood sac was documented. In this facultative relationship, phoresy and phagophilia could be involved; some hypotheses on the factors that may interfere with it are posed.

          Translated abstract

          Resumen: La foresia es una relación no parasitica entre un animal grande (huésped) y un animal pequeño (foronte) cuyo objetivo es la transportación del foronte por el huésped. A través de dos años de observación y crianza de 16 grupos familiares del coleóptero Odontotaenius striatopunctatus, se pudo observar la presencia del pseudoescorpión Lustrochernes grossus en 11 de sus nidos, los cuales consistieron de trozas de madera podrida (30 cm de largo × 15-20 cm de diámetro) cortada en rebanadas de 2 cm y sujetas con ligas para facilitar las observaciones. La presencia de los pseudoescorpiones se hizo evidente desde que los pasálidos inician la construcción de sus nidos creando espacio y alimento para sus crías. Se encontró evidencia que los pseudoescorpiones pueden llegar bajo los élitros de los pasálidos. Su presencia no impidió la reproducción de los coleópteros realizada en 13 de los 16 nidos (Fischer's exact test: P = 0.71, N = 16), ni se modificó el número de crías de los coleópteros (Mann Whitney: U = 11.50, P = 0.2553). En tres ocasiones durante la primavera se documentó la presencia de hembras de L. grossus llevando su saco de crianza. En esta relación facultativa, foresia y fagofilia podrían estar involucradas; se plantean algunas hipótesis en relación a los factores que puedan interferir en ella.

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          Author and article information

          Contributors
          Role: ND
          Role: ND
          Journal
          azm
          Acta zoológica mexicana
          Acta Zool. Mex
          Instituto de Ecología A.C.
          0065-1737
          2016
          : 32
          : 1
          : 71-80
          Affiliations
          [1 ] Instituto de Ecología, A. C. México
          [2 ] Instituto Politécnico Nacional Mexico
          Article
          S0065-17372016000100071
          ad03f50f-f16b-47db-a12d-f6f0832672da

          This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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          Categories
          Zoology

          Animal science & Zoology
          foresia pasiva,relaciones forético-fagofilícas,insectos subsociales,sinhospitalidad,fauna saproxílica,passive phoresy,phoretic-phagophilic relationship,subsocial insects,sinhospitality,saproxylic fauna

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