JOURNAL OF THE JAPANESE WILDLIFE RESEARCH SOCIETY
Online ISSN : 2424-1393
Print ISSN : 0916-8265
A discussion on an annual fluctuation of population of red-backed vole (Clethrionomys rufocanus bedfordiae) by means of Leslie Matrix (III)
Sukesaburo HIGUCHIFumi HAYASHI
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2008 Volume 33 Pages 39-46

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Abstract
The age distribution vector of one population at a time projects for each one to the next time through the Leslie matrix for these components, the survival rate and fertility rates are arranged in order. This report addresses only the survival rate as an effect of population in simulation through Leslie matrices with two systems of high and low rate survival rates, in the same fertility rate. We discuss on the differences between the age distribution vectors by simulating the two systems, that is, in the high rate system survival rates are 0.6 and 0.9, and in the low system 0.5 and 0.6 in both of the early stages (0 month age and 1 month age) of life table, and 0.9 in the middle stage, 0.5 in the terminal stage in both systems. The results show that in the high rate system the populations reach easily over 100/ha, while in the low rate system the populations fluctuate between low population levels, never reach to 100/ha.
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© 2008 THE JAPANESE WILDLIFE RESEARCH SOCIETY
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