Egg-laying behavior in Tits

Article Abstract:

The duration of egg laying in tits is 20-30 seconds, in Prairie Warblers four minutes, and eight to nine seconds in Goldcrests. The recovery phase which follows egg-laying lasts for 30-90 seconds in tits and 39-53 seconds in Goldcrests. The egg-laying duration is different in case of Great and Willow tits which is due to the difference in size. Egg-laying occurs 42 minutes earlier in the Willow tits as compared to the Great tits.

Sexual behavior, Observations, Birds, Eggs, Eggs (Food)

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Ascertainment corrections based on smaller family units

Article Abstract:

Genetic analysis can be applied to smaller families through ascertainment corrections. This method incorporates whole pedigrees while examining smaller units such as nuclear families, resulting in a generalization of the ascertainment-correction formula. The appropriate corrections are the reciprocal of the marginal probabilities sums of all individuals relevant to ascertainment, if affected.

United States, Models, Genetic screening, Genetic testing, Genetic research

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