Estimation of heritability and repeatability of resting metabolic rate in birds by the example of free-living Pied Flycatchers Ficedula hypoleuca (Aves: Passeriformes)

Bushuev, A.V.; Kerimov, A.B.; Ivankina, E.V.

Авторы: Bushuev A.V., Kerimov A.B., Ivankina E.V.
Журнал: ЖУРНАЛ ОБЩЕЙ БИОЛОГИИ
Том: 1
Номер: 1
Год издания: 2011
Издательство: ФГБУ "Издательство "Наука"
Местоположение издательства: Москва
Первая страница: 26
Последняя страница: 46
DOI: 10.1134/S2079086411010026
Аннотация: Repeatability and heritability estimates of a trait show to what extent it could be characteristic of an individual and change under selection pressure. Heritability and repeatability of energetic parameters are still weakly studied in birds. Resting metabolic rate (RMR) is one of the most important and studied physiological characteristics of an animal, which is equal to basal metabolic rate (BMR) in the absence of productive processes. We estimated BMR repeatability in free-living Pied Flycatchers in Moscow Region (55º44´N, 36º51´E; 1992-2008) and in Tomsk (56º20´N, 84º56´E; 2008-2009) over interval from 40 days to 3 years. In Moscow region BMR repeatability was τ=0.34±0.10 (n=80) over 1 year interval, τ=0.60±0.15 (n=19) over 2 years interval and τ=0.85±0.13 (n=6) over 3 years interval if consecutive BMR measurements were done in the same period of reproductive season. Repeatability is the consistency of a trait over time and sets the upper limit for it heritability. To estimate RMR heritability we conducted cross-fostering experiments in Moscow region (2003-2005). RMR of chicks which achieved asymptotic weight positively correlated with BMR of their biological, but not foster fathers. The RMR heritability estimation was h2=0.43±0.17 (n=210). Such heritability and repeatability estimates of fundamental energetic traits, being rather high for physiological features, imply the potential for direct selection on BMR and suggest the existence of evolutionary stable diversity of this energetic trait in avian populations.
Добавил в систему: Бушуев Андрей Владимирович

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Estimation of heritability and repeatability of resting metabolic rate in birds by the example of free-living Pied Flycatchers Ficedula hypoleuca (Aves: Passeriformes)статья

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