Primary Study of the Rattus Norvegicus Population Structure Characteristics in Xinjiang
Daming Zhang
Abstract
Daming Zhang
Abstract
In this paper,according to the many years on the spot investigation,we have studied primarily the Rattus norvegicus population structure characteristics in the arid zone. The results are as follows, the innate capacity of increase (rm) is 0. 221 and finite rate of increase (λ)is 1.247. Rattus norvecigicus population age structure belongs to the stable age distribution.
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In this paper,according to the many years on the spot investigation,we have studied primarily the Rattus norvegicus population structure characteristics in the arid zone. The results are as follows, the innate capacity of increase (rm) is 0. 221 and finite rate of increase (λ)is 1.247. Rattus norvecigicus population age structure belongs to the stable age distribution.
Key concepts: Age structure, Arid, Population, Population structure, Biology, Distribution (mathematics), Ecology, Geography