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diapause

diapause

1 9.6
A period when an insect or other animal stops developing until conditions improve
  • noun
  • /ˈdaɪəˌpɔs/
  • Specialized
: diapausa
  • Most grasshopper eggs spend the winter in the soil after a temperature-driven dormancy called diapause, says Fisher.
  • go into diapause
  • enter diapause
  • termination of diapause

Examples

  • In the flesh fly, Sarcophaga bullata, prolonging larval diapause in the laboratory reduced fertilization success (Denlinger 1981).

    Academic text (1998)
  • Photoperiodic organisms go into diapause at a precise day length, but this day length often varies systematically with latitude.

    Academic text (1992)
  • So the weevils are without a host during a cool spell and go into diapause.

    Academic text (1995)
  • As a result, many weevils die before they can either mature and mate or enter diapause.

    Academic text (1994)
  • "In South Texas, some weevils may enter diapause as early as August 1, but some never do," says Summy.

    Academic text (1994)
  • I decided to pinpoint the latitude of the mosquito's origin by establishing the relationship between diapause and day length for populations from Japan.

    Academic text (1992)
  • Toward late summer and fall, boll weevils in many areas enter a winter-long dormancy called diapause, says Weslaco entomologist K. Rod Summy.

    Academic text (1994)
  • During the cold months, many insects enter diapause to survive harsh conditions.

  • Weevils go into diapause to conserve energy when the temperatures drop significantly.

  • Grasshopper eggs are known to enter diapause during winter to endure the cold soil conditions.

Surface Forms

diapause singular
diapauses plural

Morphology

diapause = pause (semi-transparent) = dia + pause

The prefix 'dia-' suggests 'through' or 'across', but the specific biological context of 'diapause' is specialized.

Etymology

Diapause joins dia-, meaning 'across' or 'through', and the familiar word pause, meaning 'stop'. So a diapause is a time when an animal 'stops' developing or growing to survive bad conditions.