Importance and evolution of sexual dimorphism in different families of Collembola (Hexapoda)

Pesquisa Agropecuária Brasileira

José Guadalupe Palacios-vargas¹  Gabriela Castaño-meneses¹ 

[1] ,Universidad Nacional Autónoma de Mexico Facultad de Ciencias, Ecología y Sistemática de Microartrópodos Departamento de Ecología y Recursos NaturalesCiudad Universitaria D.F. ,México

关键词: Guthriella muskegis;    morphological variations;    secondary sexual characters;    Guthriella muskegis;    variações morfológicas;    caracteres sexuais secundários;   

DOI  :  10.1590/S0100-204X2009000800024

来源: SciELO

【 摘 要 】

A bibliographic revision of sexual dimorphism in different families of Collembola was performed in order to determine the most common patterns in each group. We list several examples of the sexual dimorphism in different families of Collembola, which illustrate from some of the smallest differences between males and females to major differences between both sexes in some families. We show different cases of sexual dimorphism in Spinactaletes, Sminthurides, and the remarkable morphology of Guthriella muskegis. It seems that most of the cases of strong sexual dimorphism are related to aquatic habitats or behaviour still not fully understood. Species belonging to primarily aquatic families (fresh water or marine water) have the most evolved morphology, where males have clasping antennae to attach the females in order to avoid loosing them with the movement of the water.

【 授权许可】

CC BY   
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