Brood size reduction in Nicrophorus vespilloides after usurpation of carrion from Nicrophorus quadripunctatus (Coleoptera: Silphidae)

Authors

  • Seizi SUZUKI

    Corresponding author
    1. Systematics and Evolution, Division of Biological Sciences, Graduate School of Science, Hokkaido University, Sapporo, Japan
      Dr Seizi Suzuki, Ecology and Systematics, Graduate School of Agriculture, Hokkaido University, Sapporo, 060-8589 Japan. Email: seizi@res.agr.hokudai.ac.jp
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Dr Seizi Suzuki, Ecology and Systematics, Graduate School of Agriculture, Hokkaido University, Sapporo, 060-8589 Japan. Email: seizi@res.agr.hokudai.ac.jp

Abstract

Burying beetles bury small vertebrate carcasses, which become food for their larvae. They sometimes usurp carcasses occupied and buried by other beetles. Brood sizes of intraspecific and interspecific intruders were examined using Nicrophorus quadripunctatus as the resident. The brood sizes of usurpers were not reduced relative to control brood sizes when the usurper was conspecific, but were reduced when the usurper was heterospecific (N. vespilloides).

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