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Growth rate, reproductive characteristics, and survival rate of European water voles taken from the population at the peak, decline, depression, and increase phases of population cycle were compared under standard vivarium conditions. In November to March, the growth rate of decline-phase males was higher, while that of decline-phase females was lower than in other animals. Decline-phase males were also more successful in reproduction than males taken at other phases. The survival rate of decline-phase females was reduced in the winter period. 相似文献
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Nazarova Elmira A. Nazarov Alexey V. Egorova Daria O. Anan’ina Ludmila N. 《Environmental geochemistry and health》2022,44(2):399-408
Environmental Geochemistry and Health - Lindane and DDT (1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane) are pesticides from the group of persistent organic pollutants. These compounds, due to... 相似文献
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The relationship between long-term dynamics of reproductive parameters and body condition were studied in female water voles from a cycling population. Body condition was estimated from the deviation of body weight (excluding the weight of the uterus with embryos) from the theoretically expected weight calculated from the equation of body weight regression with respect to body length. As the index of body condition increases upon transition from decline to peak in the population cycle, the numbers of corpora lutea and live embryos also increase and the risk of resorption of the entire litter becomes lower. 相似文献
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Role of genetic factors in landscape-geographic variation of the water vole (Arvicola terrestris L.)
V. Yu. Kovaleva V. M. Efimov V. I. Faleev Yu. K. Galaktionov S. A. Abramov G. G. Nazarova V. Yu. Muzyka L. Yu. Epifantseva 《Russian Journal of Ecology》2006,37(6):431-436
The geographic variation of the water vole Arvicola terrestris L. has been analyzed with respect to two linear combinations of craniometric characters with the highest additive heritability (h 2 = 0.59 and h 2 = 0.52). The greatest differences have been revealed between the territorially close montane and piedmont populations. The lowland and montane populations have proved to differ to the smallest extent, despite their spatial and altitudinal separation. Selection under extreme conditions that leads to similar phenotypic results may be based on the common genetic background of these populations, irrespective of considerable distances between them and different environmental conditions in their habitats. 相似文献
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