Matriphagy in the hump earwig, Anechura harmandi (Dermaptera: Forficulidae), increases the survival rates of the offspring

  title={Matriphagy in the hump earwig, Anechura harmandi (Dermaptera: Forficulidae), increases the survival rates of the offspring},
  author={Seizi Suzuki and Masashi Kitamura and Kei W. Matsubayashi},
  journal={Journal of Ethology},
Females of the hump earwig, Anechura harmandi, are completely consumed by their offspring at the end of their care (matriphagy). The effect of this matriphagy was assessed by manipulative experiments. Matriphagy led to a delay in the dispersal of the nymphs and an increase in their survival rate. The same results were obtained when mothers were removed and the nymphs were given sufficient food. Females separated from their offspring after larval hatching failed to produce a second clutch, and… 

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  • R. Lamb
  • Biology
    The Canadian Entomologist
  • 1976
The construction of the nest, care of the eggs and nymphs, and the duration of parental care are described and the control of parental behavior and the role of the male in nest establishment are considered.

Maternal behavior and clutch manipulation in the ring-legged earwig (Dermaptera: Carcinophoridae)

Maternal care extended through embryogenesis and for the week following hatching and through observations of interactions between brooding females, indicating that the presence of brood inhibited the onset of the second gonadotrophic cycle.

Possible influences of habitat characteristics on the evolution of semelparity and cannibalism in the hump earwigAnechura harmandi

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  • Biology
    Researches on Population Ecology
  • 2007
The cannibalism of the female parent by her offspring seemed to have readily evolved after the evolution of semelparity in the hump earwig Anechura harmandi.

The life cycle of Micromalthus debilisLeConte (1878) (Coleoptera: Archostemata: Micromalthidae): historical review and evolutionary perspective

It is speculated that Micromalthus is dependent on maternally transmitted bacteria for the ability to digest rotting wood, and that these bacteria are senescent in males, causing males to be obligately cannibalistic.

Convergence Patterns in Subsocial Insects

In the insects, parental behavior lies at the core of all levels of insect sociality and has arisen independently in at least 13 different orders, and Wilson (172) has identified four environmental "prime movers" that create conditions favorable to the evolution of parental care.

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  • M. Gross
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    The Quarterly Review of Biology
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The laboratory has formalized Williams’s Principle into the relative value theorem and found that its application to fishes, the taxa with the most diverse patterns of parental care, can help to explain which sex provides care and how much.