Population growth induced by disturbance in the ecological structure of the population

Petrusewicz, Kazimierz

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Title: Population growth induced by disturbance in the ecological structure of the population

Abstract:

Confined populations of mice were used 10 experiments (repeated 264 times) in which either several virgin mice were added or several mice removed for the period of one week, In 65 percent of the experiments (versus 32% of controls) there was a numeric al growth of the population, Numerical growth started in experiments at higher population levels than in controls. Population fecundity and survival of the young were after an experiment greater than before. The suggestion is made that the experimental shock breacks down the ecological structure of the population and thereby promotes numerical growth.

References:

1. Andrewartha, H. G. 1961 - Introduction to the study of animal population - Chicago, pp. XVII + 281.
2. Brown, R.Z. 1953 - Social behaviour, reproduction, and population changes in the House mouse (Mus musculus L.) - Ecol. Mon. 23, pp. 217-240.
3. Calhoun, J.B. 1936 - A comparative study of the social behaviour of two inbred strains of the House Mice - Ecol. Mon. 26, pp,81-103.
4. Evans, F.C. 1949 - A population study of house mice following a period of local abundance - Jour. Mamm. 30; pp. 351-363.
5. Naumov, N.P. 1953 - Ekologia zivotnych - Moskva, pp.532.
6. Petrusewicz, K. 1957 - Investigation of experimentaly induced population growth – Ekol. Pol. A, 5, pp. 281-309.
7. Petrusewicz, K., Wilska, T. 1959 - Investigation of the influence of interpopulation relations on the result of fights between male mice - Ekol. Pol. A, 7, pp. 357-390.
8. Petrusewicz, K. 1960 - Some regularities in male and female numerical dynamic in mice population - Acta theriol. 4, pp. 103-137.
9. Petrusewicz, K. 1960 - An increase in mice population induced by disturbance of the ecological structure of the population - Bull. Acad. pol. Sci., 8, pp. 301-304.
10. Southwick, C.H. 1955a - The population dynamics of confined house mice supplied with unlimited food - Ecology 36, pp.212-224.
11. Southwick, C.H. 1955b - Regulatory mechanisms of house mouse populations: social behaviour affecting litter survival - Ecology 36, pp. 627-634.
12. Southwick, G.H. 1958 - Population characteristics of house mice living in english corn ricks: density relationships - Proc. zool. Soc., London 131, pp, 163-175.
13. Strecker, R.L. and Emlen, J.T. 1953 - Regulatory mechanisms in house-mouse populations: the effect of limited food supply on a confined population – Ecology 34, pp. 375-386.
14. Tupikova, N.V. 1947 - Ekologija domovoj mysi srednej polosy SSSR – Materialy po gryzunam, 2, Fauna i ekologija gryzunow, red. A.N. Formozov - Moskva, pp. 5-67.
15. Wijngaarden, A. van 1960 - The population dynamic of four confined population of the continental vole Microtus arvalis - Meded. R.J.V.O.N., 84.