Sexual maturation of daughters depends on the mother’s body condition during pregnancy: An example of the water vole Arvicola terrestris L.

Назарова, Г. Г.; Evsikov, V. I.

doi:10.1134/s0012496607010176

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…The ecological factors of local environment and individual maternal characteristics play an important role in fulfillment of reproductive potential and demographic dynamics of the water vole (Nazarova and Evsikov, 2000, 2004, 2007, 2008, 2012a; Muzyka et al, 2010). During breeding season, reproductive groups composed of males and females of various ages form the basic unit of the spatial organization of a water vole population (Evsikov et al, 2001; Muzyka et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

Effects of seasonal, ontogenetic, and genetic factors on lifespan of male and female progeny of Arvicola amphibius

Назарова¹

2013

Front. Genet.

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The water vole (Arvicola amphibius) in the forest-steppe of West Siberia is known to have wide fluctuations in abundance. These fluctuations are accompanied by changes in birth and death rates, sex-age structure of the population, and individual morphophysiological and behavioral characteristics of the animals. Survival of the animals depends on season, phase of population cycle, and sex. Based on the data of long-term captive breeding of water voles, the maximal lifespan of males was found to be 1188 days and that of females, 1108 days. There were no differences between the sexes in mean lifespan. The probability of living 2 years or longer was 0.21. Individuals who began breeding at an older age had a significantly longer lifespan and produced more offspring. The survival curves of the spring-born animals were steeper than of those summer-/autumn-born. Maternal factors had a differential effect on males and females with respect to lifespan. Male lifespan correlated negatively with maternal age, parity, and litter size, whereas female lifespan did not correlate with these characteristics. To estimate heritability, parent-offspring correlations of lifespan were calculated, as well as full-sib intraclass correlations. No statistically significant correlation was found for lifespan between sons and mothers, sons and fathers, and daughters and fathers. Daughters' lifespan correlated positively with maternal lifespan (r = 0.21, p < 0.001). Female full-sibs and male full-sibs had the same intraclass correlations, 0.22, p < 0.001.

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Section: Discussionmentioning

confidence: 99%

Effects of seasonal, ontogenetic, and genetic factors on lifespan of male and female progeny of Arvicola amphibius

Назарова¹

2013

Front. Genet.

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“…3. The growth of two groups of females: those that matured and did not mature during the year of their birth (Nazarova and Evsikov, 2007). potential under the influence of the demographic dynamics of the population and the quantitative, as well as qualitative, changes in the food supply.…”

Section: Variability In the Ability Of Females To Accumulate Body Resmentioning

confidence: 99%

“…size, and sex ratio in the litter all are characteristics that influence the probability of sexual maturation of the offspring during the first 2 months after birth that were assessed for European water voles bred in a vivar ium (Nazarova and Evsikov, 2007). Physical condition indexes, as presented by the difference between the apparent female body mass growth during pregnancy and the theoretically estimated one calculated from a regression equation approximating the relationship between body mass after birth and before mating, were used as a vital estimation of the fat reserves accumu lated during the pregnancy period Evsikov, 2007, 2008).…”

Section: Variability In the Ability Of Females To Accumulate Body Resmentioning

confidence: 99%

The evolutionary ecology of animal fertility: The fitness of progeny is determined by their prenatal development (according to the example of the European water vole, Arvicola terrestris L.)

Назарова

Evsikov

2012

Russ J Genet Appl Res

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The contribution of the maternal environment (gestational weight gain, month of birth, and litter size) to the formation and realization of the reproductive potential of adjacent European water vole genera tions has been studied for years in the natural population and in captivity. The accumulation of body fat and other reserves during pregnancy plays an essential role in the regulation of reproductive processes. Realization of the reproductive potential of females, growth rate, and the sexual maturation of the offspring depends on the ability of the mothers to properly utilize the energy reserves of their body both during pregnancy and at the next stage of the reproduction cycle, lactation.

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“…Pups that were born in the second half of the summer become sexually mature the next year, and they can give up to five litters in the given season. In addition, sexual maturation in the water vole depends on physical state of the mother during pregnancy (Nazarova and Evsikov, 2007).…”

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confidence: 99%

Early embryonic mortality in the water vole (Arvicola terrestris L.)

2012

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Sexual maturation of daughters depends on the mother’s body condition during pregnancy: An example of the water vole Arvicola terrestris L.

Cited by 5 publications

References 8 publications

Effects of seasonal, ontogenetic, and genetic factors on lifespan of male and female progeny of Arvicola amphibius

Effects of seasonal, ontogenetic, and genetic factors on lifespan of male and female progeny of Arvicola amphibius

The evolutionary ecology of animal fertility: The fitness of progeny is determined by their prenatal development (according to the example of the European water vole, Arvicola terrestris L.)

Early embryonic mortality in the water vole (Arvicola terrestris L.)

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