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Journal of Chemical Ecology

, Volume 10, Issue 1, pp 41–51 | Cite as

Defensive secretion of the pill millipedeGlomeric marginata

I. Fluid production and storage
  • James E. Carrel
Article

Abstract

AdultGlomeris marginata reloaded glandular defensive fluid slowly and fairly constantly at 15 °C for 100 days after being milked to depletion. Female millipedes produced more sticky exudate than males, but the two sexes stored secretion at approximately the same absolute rate, 12 μg/individual/day. Hence, males, which weighed one third as much as females, accumulated disproportionately more secretion. MaleGlomeris in the reloading treatments after 75 days yielded as much exudate as controls, millipedes given 100 days to supplement their field reserves, whereas experimental females always produced less secretion than controls. Projections from these data suggest that adultGlomeris, regardless of sex, require more than 4 months to replenish their defensive reserves after completely discharging them in an attack.

Key words

millipede Glomeris marginata Glomerida Diplopoda defense secretion fluid production sexual dimorphism 

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Copyright information

© Plenum Publishing Corporation 1984

Authors and Affiliations

  • James E. Carrel
    • 1
  1. 1.Division of Biological Sciences209 Tucker Hall, University of MissouriColumbia

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