Growth rate, reproductive capacity, and survival rate of European water voles taken from natural populations at different phases of the population cycle

Назарова, Г. Г.; Evsikov, V. I.

doi:10.1134/s1067413610040077

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…Although few other studies have been published regarding seasonal changes in infection of M. muris in rodents, a higher prevalence of M. muris has been noted in the late winter and spring months in rats in New Zealand (Charleston and Innes, 1980) and in bank voles ( M. glareolus ) in the northern boreal zone of Finland (Haukisalmi et al , 1988). The seasonal differences of food availability and age structure in water voles, as demonstrated by Potapov et al (2004) and Nazarova and Evsikov (2010), could influence the level of infection in these animals. In addition, breeding in the spring could add stress to the water voles, resulting in higher infection.…”

Section: Resultsmentioning

confidence: 91%

Seasonal variation of Mastophorus muris (Nematoda: Spirurida) in the water vole Arvicola amphibius from southern Sweden

et al. 2018

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This study focused on the spirurid nematode Mastophorus muris in water voles (Arvicola amphibius) trapped in three regions in southern Sweden during spring and fall 2013. The collection of water voles formed part of a larger project (EMIRO) on the cestode Echinococcus multilocularis in rodents. The voles’ stomach contents were examined for the presence of M. muris. Prevalence, mean abundance and mean intensity of infection were calculated. A generalized linear model model was used to examine the effects of sex, functional group, season and region on the number of M. muris individuals in each vole. Forty-seven of 181 (26%) voles were infected with M. muris, with up to 74 worms each. The overall mean intensity (worms per infected vole) was 15 (95% CI 10–21), and abundance (mean number of worms in all voles) was 4 (95% CI 2–6). Model output indicated a significant effect of season and region with respect to abundance of nematode infection, which was independent of sex and functional group of the investigated host.

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Section: Resultsmentioning

confidence: 91%

Seasonal variation of Mastophorus muris (Nematoda: Spirurida) in the water vole Arvicola amphibius from southern Sweden

et al. 2018

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“…The most direct mechanistic argument in our favor is the observation of cyclic mammals continuing to show the attributes of the decline phase in the laboratory (in the absence of consumers) when sampled from the declining part of the cycle. This test has been shown clearly for some species of voles ( Mihok & Boonstra, 1992 ; Nazarova & Evsikov, 2010 ) but not clearly for others ( Ergon et al, 2001 ) and more recently has been observed for snowshoe hares ( Sinclair et al, 2003 ; Sheriff, Krebs & Boonstra, 2009 ).…”

Section: Discussionmentioning

confidence: 92%

Mammalian cycles: internally defined periods and interaction-driven amplitudes

Ginzburg

Krebs

2015

PeerJ

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The cause of mammalian cycles—the rise and fall of populations over a predictable period of time—has remained controversial since these patterns were first observed over a century ago. In spite of extensive work on observable mammalian cycles, the field has remained divided upon what the true cause is, with a majority of opinions attributing it to either predation or to intra-species mechanisms. Here we unite the eigenperiod hypothesis, which describes an internal, maternal effect-based mechanism to explain the cycles’ periods with a recent generalization explaining the amplitude of snowshoe hare cycles in northwestern North America based on initial predator abundance. By explaining the period and the amplitude of the cycle with separate mechanisms, a unified and consistent view of the causation of cycles is reached. Based on our suggested theory, we forecast the next snowshoe hare cycle (predicted peak in 2016) to be of extraordinarily low amplitude.

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“…In the wild population in dif ferent phases of the population cycle, the portion of females with resorption of all implanting embryos var ied from 8.6% (at the peak of its size) up to 33.5% (at the decline) (Evsikov et al, 1999). This feature of physiology of reproduction remains in females bred in the laboratory (Bazhan et al, 1999;Nazarova and Evsikov, 2010). Therefore, the water vole can also be a useful laboratory animal to solve the problems of reproductive medicine.…”

mentioning

confidence: 98%