Search for: [Description = "Nitrogen, phosphorus, potassium and calcium contents were determined in Clethrionomys glareolus \(Schreber, 1780\) and Apodemus flavicollis \(Melchior, 1834\), the average values in bank voles being 9.9% dry mass N, 2.3% P, 1.0% K and 2.9% Ca, and in mice 10.2% N, 2.4% P, 1.1% K and 3.0% Ca. Calculation was made of relations between body weight, and in the case of the mice, also between age, and the contents of all these elements, since this makes it possible to use these data in various types of calculations relating to biogen flow. As a example the biogen balance was calculated for the rodent population in tree stands of the Niepołomice Forest near Kraków."]

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