Sentence examples for laying start from inspiring English sources

As with the analysis for all clutches combined, the interaction was significant on the first night after laying start among control broods only (coefficient ± SE = 0.84 ± 0.30, χ = 7.90, df = 1, P = 0.005).

Incubation on the first night after laying start was not affected by the experimental treatment (n = 37 control and 40 experimental nests, t = 1.05, df = 75, P = 0.30), which allowed us to combine all nests to test whether incubation duration at this stage predicted the likelihood of individual hatchlings being sired by an extra-pair male.

Since eggs are generally fertilized a day before laying (Etches 1996), paternity of the first two eggs would have already been determined by the first night after laying start, and copulations that fertilize the third egg would most likely have already occurred (Lifjeld et al. 1997).

Our finding that paternity was not affected by the lack of stimulation by eggs after laying start, may be best explained by females ceasing EPC activity at the onset of laying, regardless of later stimuli that can still affect final clutch size.

Our current findings suggest that this link is not caused by direct effects of incubation on the acquisition of EPP, but rather reflects some form of physiological trade-off, with the physiological state associated with EPP acquisition prior to laying still influencing a female's incubation duration on the first night after laying start.

However, experimental females started with the same duration of incubation as controls and even increased the duration of incubation over the laying phase, although on average more slowly, despite the absence of eggs over the first ten nights after laying start.

In some (perhaps most) hornbills, however, the female enters the nest cavity before laying starts; the male brings mud and debris, which the female takes and plasters around the entrance until only a slit is left.

There then followed two layers of coarse, roughened mortar, the stability of which was often improved by large nails that had been driven into the joints of the wall before the work of laying started.

Although egg laying started earlier in some territories, the mean breeding success was similar in all of them.

Laying starts at the end of April into early May.

Laying starts in western Europe at the end of April, and in the east of the range in late May; second clutches, which are common, commence in June to July.