SURVIVORSHIP AND CANNIBALISM IN LYCTOCORIS-CAMPESTRIS (HEMIPTERA, ANTHOCORIDAE) - EFFECTS OF DENSITY, PREY AVAILABILITY, AND TEMPERATURE Academic Article uri icon

abstract

  • Availability of prey was an important factor for cannibalism in Lyctocoris campestris (F.). Cannibalistic predation in L. campestris nymphs was density dependent irrespective of prey level or space provided. Mean adult longevity varied under different prey, water, and temperature regimes. Adults survived for more than 2 wks when no prey or free water was provided, and survivorship increased slightly when bugs had access to free water. Females survived longer than males (P = 0.03) when only water was provided. Under a no-prey regime, lower rearing temperatures yielded significantly higher adult survivorship. Lyctocoris campestris adults survived for 23.5 d without prey or water at 17C. The cannibalistic predation among nymphs and the ability of adults to survive for an extended period of time without prey or water may enable bug populations to persist until prey populations rebound in a stored-product ecosystem.

published proceedings

  • JOURNAL OF ENTOMOLOGICAL SCIENCE

author list (cited authors)

  • PARAJULEE, M. N., & PHILLIPS, T. W.

citation count

  • 13

complete list of authors

  • PARAJULEE, MN||PHILLIPS, TW

publication date

  • January 1995