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Movement and spatial distribution of the Nile rat (Arvicanthis niloticus) in Kenya

Published online by Cambridge University Press:  10 July 2009

M. J. Delany  and
R. H. Monro
M. J. Delany
Affiliation:
School of Environmental Science, University of Bradford, England
R. H. Monro
Affiliation:
School of Environmental Science, University of Bradford, England
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Abstract

The movement and spatial distribution of marked Nile rats, Arvicanthis niloticus, was traced through phases of a low density population from January to August 1981, a rapidly growing population from September to January 1982, and a high and declining post-reproductive population from February to April 1982. Apart from late in the population cycle there was considerable movement, interchange and establishment of new ranges. As the population increased individual ranges became smaller. The rats apparently preferred field edges and did not favour the fields themselves. Females frequently established themselves at certain sites where they produced their litters; some of the offspring remained with the mother in the warren. There is also evidence that ousiders of both sexes joined these warrens. Males were generally more wide-ranging than females. Agricultural practices, e.g. mowing and trampling by cattle, influenced the rats preparedness to remain within a particular location. Exploitation of all the available habitat took several months to achieve.

Keywords

ArvicanthisdistributionKenyamovement
Type
Research Article
Information
Journal of Tropical Ecology , Volume 1 , Issue 2 , May 1985 , pp. 111 - 130
Copyright
Copyright © Cambridge University Press 1985

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References

LITERATURE CITED

Crowcroft, W. P. & Rowe, F. P. 1963. Social organisation and territorial behaviour in the wild house mouse (Mus musculus). Proceedings of the Zoological Society of London 140:517–531.CrossRefGoogle Scholar
Delany, M. J. 1961. The ecological distribution of small mammals in north-west Scotland. Proceedings of the Zoological Soceity of London 137:107–126.CrossRefGoogle Scholar
Delany, M. J. & Monro, R. H. 1985. Growth and development of Nile rats, Arvicanthis niloticus (Rodentia: Muridae). African Journal of Ecology 23:121–132.CrossRefGoogle Scholar
Delany, M. J. & Monro, R. H. 1986. Population dynamics of Arvicanthis niloticus (Rodentia: Muridae) in Kenya. Journal of Zoology, London.CrossRefGoogle Scholar
Delany, M. J. & Roberts, C. J. 1978. Seasonal population changes in rodents in the Kenya Rift Valley. Bulletin of the Carnegie Museum of Natural History 6:97–108.Google Scholar
Farrag, H. A. 1983. Reproductive biology and social behaviour in the Nile rat (Aarvicanthis niloticus,). Ph.D. thesis, University of Reading, England.Google Scholar
Ghobrial, L. I. & Hodieb, A. S. K. 1982. Seasonal variation in the breeding of the Nile rat (Arvicanthis niloticus). Mammalia 46:319–333.CrossRefGoogle Scholar
Happold, M. 1976. Social behavior in the Conilurine rodents (Muridae) of Australia. Zeitschrift für Tierpsychologie 40:113–182.CrossRefGoogle ScholarPubMed
Linn, I. J. & Downton, F. 1975. The analysis of data obtained from small mammal index trappings. Acta Theriologica 20:319–331.CrossRefGoogle Scholar
Linsdale, J. M. 1946. The California ground squirrels. University of California Press, Berkeley. 475 pp.Google Scholar
Monro, R. H. 1938. Ecology of the Nile rat, Arvicanthis niloticus (Desmarest) (Rodentia: Muridae), in Kenya. Ph.D. thesis, University of Bradford, England.Google Scholar
Müller, J. P. 1977. Populationsökologie von Arvicanthis abyssinicus in der Grassteppe des Semien Mountains National Park (Äthiopien). Zeitschrift fūr Säugetierkunde 42:145–172.Google Scholar
Neal, B. R. 1981. Reproductive biology of the unstriped grass rat, Arvicanthis, in East Africa. Zeitschrift fūr Säugetierkunde 46:174–189.Google Scholar
Nel, J. A. J. 1975. Aspects of the social ethology of some Kalahari rodents. Zeitschift fūr Tierpsychologie 37:322–331.CrossRefGoogle Scholar
Packer, C. 1983. Demographic changes in a colony of Nile grass rats (Arvicanthis niloticus) in Tanzania. Journal of Mammalogy 64:159–161.CrossRefGoogle Scholar
Poulet, A. R. 1982. Pullulation de rongeurs dans le sahel. ORSTOM, Paris. 367 pp.Google Scholar
Senzota, R. B. M. 1982. The habitat and food habits of the grass rats (Arvicanthis niloticus) in the Serengeti National Park, Tanzania. African Journal of Ecology 20:241–252.CrossRefGoogle Scholar
Senzota, R. B. M. 1983. A case of rodent-ungulate resource partitioning. Journal of Mammalogy 64:326–329.CrossRefGoogle Scholar
Smith, W. J., Smith, S. C., Oppenheimer, E. C., De Villa, J. G. & Ulmer, F. A. 1973. Behaviour of a captive population of black-tailed prairie dogs: annual cycle of social behaviour. Behaviour 46:189–200.CrossRefGoogle Scholar
Stickel, L. F. 1954. A comparison of certain methods of measuring ranges of small mammals. Journal of Mammalogy 35:1–15.CrossRefGoogle Scholar
Taylor, K. D. 1968. An outbreak of rats in agricultural areas in Kenya in 1962. East African Agricultural and Forestry Journal 34:66–77.CrossRefGoogle Scholar
Taylor, K. D. & Green, M. G. 1976. The influence of rainfall and diet on reproduction in four African rodent species. Journal of Zoology, London 180:367–389.CrossRefGoogle ScholarPubMed