It was morning now, by shiptime: here up in the crew levels, the lights still followed a diurnal pattern, slaved to a twentyfour hour clock.

Thus, albinism can affect the diurnal pattern of IOP changes.

The rhythm of life is orchestrated by the natural diurnal patterns of light and dark, so disruption to these patterns impacts the ecological dynamics.

The secretion also loses its normal diurnal pattern of morning peak levels and evening and night time troughs.

Sheep follow a diurnal pattern of activity, feeding from dawn to dusk, stopping sporadically to rest and chew their cud.

Also, their migration departures consist of small flocks and have no diurnal patterns.

Since in the winter the surface temperature on a glacier could reach 40 C, scientists doubt the worms follow the diurnal pattern.

Geraldton tides follow a diurnal pattern, with maximum tidal ranges of around 1-metre (3 ft).

Elderly people lose the diurnal pattern of secretion.

Under normal summertime conditions, a diurnal (day-night) pattern of fog and low clouds occurs.