Experimental and Applied Acarology

, Volume 60, Issue 3, pp 313–320 | Cite as

Life history differences between two forms of the social spider mite, Stigmaeopsis miscanthi

Article

Abstract

The two forms of Stigmaeopsis miscanthi (Saito) (called LW and HG) differ in their levels of male-to-male aggression, differ in their diapause attributes, and morphologically in the male leg I armor. Furthermore, a type of reproductive isolation exists between the forms, although some one-way compatibility is maintained. Here we looked for any differences in life history traits between the two forms under experimental conditions. The intrinsic rate of natural increase (rm) of the LW form was lower than that of the HG form, the difference seemingly caused by the developmental speed of the latter. Although the developmental speeds of HG under several temperature regimens were significantly higher than those of LW, the low development threshold temperatures of the two forms were almost identical. This study addresses why a significant difference in rm exists in relation to other behavior and physiological (diapause) adaptations.

Keywords

Male aggression Intrinsic rate of natural increase Diapause Low development threshold temperature Inbreeding depression 

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Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  1. 1.Laboratory of Applied Animal Ecology, Graduate School of AgricultureHokkaido UniversitySapporoJapan
  2. 2.NARO Agricultural Research Center (NARO/ARC)TsukubaJapan

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