### Abstract

A total of 31 years of abundance data from 90 populations of the grey-sided vole (Clethrionomys rufocanus) in northern Hokkaido (Japan) were analysed with respect to population dynamic characteristics. Both non-periodic and multi-annually periodic fluctuations occur among the studied populations. The length of the period varies from 2 to 5 years. The dynamics appear approximately linear on a logarithmic scale, and a log-linear stochastic difference model with one time-lag is found to recreate the periodograms of the time series. The deterministic (log-linear) component of these models determines the periodicity while stochasticity sustains the cycles. The dynamics of the Hokkaidian vole populations are found to vary clinally from the western coast eastwards and towards the interior of the study area. This gradient corresponds superficially to the latitudinal gradient seen in microtine populations in Fennoscandia. However, under close scrutiny, these gradients differ greatly: the Hokkaidian gradient is caused by a dine in delayed density dependence. Statistical delayed density dependence is more negative towards the east and the interior.

Original language | English (US) |
---|---|

Pages (from-to) | 1117-1126 |

Number of pages | 10 |

Journal | Proceedings of the Royal Society B: Biological Sciences |

Volume | 263 |

Issue number | 1374 |

DOIs | |

State | Published - Jan 1 1996 |

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### All Science Journal Classification (ASJC) codes

- Biochemistry, Genetics and Molecular Biology(all)
- Immunology and Microbiology(all)
- Environmental Science(all)
- Agricultural and Biological Sciences(all)

### Cite this

*Proceedings of the Royal Society B: Biological Sciences*,

*263*(1374), 1117-1126. https://doi.org/10.1098/rspb.1996.0164

}

*Proceedings of the Royal Society B: Biological Sciences*, vol. 263, no. 1374, pp. 1117-1126. https://doi.org/10.1098/rspb.1996.0164

**A gradient from stable to cyclic populations of Clethrionomys rufocanus in Hokkaido, Japan.** / Stenseth, N. Chr; Bjornstad, Ottar N.; Saitoh, T.

Research output: Contribution to journal › Article

TY - JOUR

T1 - A gradient from stable to cyclic populations of Clethrionomys rufocanus in Hokkaido, Japan

AU - Stenseth, N. Chr

AU - Bjornstad, Ottar N.

AU - Saitoh, T.

PY - 1996/1/1

Y1 - 1996/1/1

N2 - A total of 31 years of abundance data from 90 populations of the grey-sided vole (Clethrionomys rufocanus) in northern Hokkaido (Japan) were analysed with respect to population dynamic characteristics. Both non-periodic and multi-annually periodic fluctuations occur among the studied populations. The length of the period varies from 2 to 5 years. The dynamics appear approximately linear on a logarithmic scale, and a log-linear stochastic difference model with one time-lag is found to recreate the periodograms of the time series. The deterministic (log-linear) component of these models determines the periodicity while stochasticity sustains the cycles. The dynamics of the Hokkaidian vole populations are found to vary clinally from the western coast eastwards and towards the interior of the study area. This gradient corresponds superficially to the latitudinal gradient seen in microtine populations in Fennoscandia. However, under close scrutiny, these gradients differ greatly: the Hokkaidian gradient is caused by a dine in delayed density dependence. Statistical delayed density dependence is more negative towards the east and the interior.

AB - A total of 31 years of abundance data from 90 populations of the grey-sided vole (Clethrionomys rufocanus) in northern Hokkaido (Japan) were analysed with respect to population dynamic characteristics. Both non-periodic and multi-annually periodic fluctuations occur among the studied populations. The length of the period varies from 2 to 5 years. The dynamics appear approximately linear on a logarithmic scale, and a log-linear stochastic difference model with one time-lag is found to recreate the periodograms of the time series. The deterministic (log-linear) component of these models determines the periodicity while stochasticity sustains the cycles. The dynamics of the Hokkaidian vole populations are found to vary clinally from the western coast eastwards and towards the interior of the study area. This gradient corresponds superficially to the latitudinal gradient seen in microtine populations in Fennoscandia. However, under close scrutiny, these gradients differ greatly: the Hokkaidian gradient is caused by a dine in delayed density dependence. Statistical delayed density dependence is more negative towards the east and the interior.

UR - http://www.scopus.com/inward/record.url?scp=0030437518&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030437518&partnerID=8YFLogxK

U2 - 10.1098/rspb.1996.0164

DO - 10.1098/rspb.1996.0164

M3 - Article

C2 - 8858871

AN - SCOPUS:0030437518

VL - 263

SP - 1117

EP - 1126

JO - Proceedings of the Royal Society B: Biological Sciences

JF - Proceedings of the Royal Society B: Biological Sciences

SN - 0962-8452

IS - 1374

ER -