Seasonal biology explainerWorldwide

What is diapause in ticks?

Diapause is a programmed pause or suppression in tick development or activity that helps synchronise the life cycle with favourable seasons.

Reviewed by VuxLore® Knowledge Team For Everyone

Short answer

Diapause is a programmed pause or suppression in tick development or activity that helps synchronise the life cycle with favourable seasons.

At a glance

It is more than a momentary response to cold and can be controlled by day length, temperature and the tick's developmental state.

Key takeaways

• Diapause helps ticks survive seasonal conditions.

• Behavioural and developmental diapause differ.

• Timing varies among species and populations.

A biological calendar

Some ticks delay host seeking, moulting or egg development even when immediate conditions appear suitable. This keeps vulnerable stages from emerging at an unfavourable time.

Not simply hibernation

Quiescence is a direct temporary response to harsh conditions, whereas diapause is internally regulated and may continue until specific cues complete the programme.