@misc{Bujalska_Gabriela_The_2000,
 author={Bujalska, Gabriela},
 editor={Polish Academy of Sciences. Institute of Ecology},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Dziekanów Leśny},
 howpublished={online},
 year={2000},
 language={eng},
 abstract={The results of studies on demography of an island population of Clethrionomys glareolus are presented. Population numbers and structure were estimated 5 times a year in 1966-1999. Two patterns of seasonal changes in population size were found: either continuous, slow increase from April (beginning of the breeding season) to October, with maximum density below 50 individuals per hectare, or rapid increase resulting in a July/September peak with maximum density up to 153 individuals per ha. The highest variations in numbers occurred in April (Whittaker's CF=2.05) and decreased with advancement of the breeding season: in September CF=1.49. The mechanism accounting for the decrease was territoriality of mature females. Fluctuating July population numbers revealed cyclic changes, namely a 3.8-year as well as a 9.4-year cycle. It is postulated that social relations between neighboring individuals rather than mean population density affect changes in population numbers.},
 title={The bank vole population in Crabapple Island},
 type={Text},
 URL={http://rcin.org.pl/Content/113475/PDF/WA058_91221_P2840-T48_Eko-Pol-A-Suppl.pdf},
 volume={48},
 number={supplement},
 journal={Polish Journal of Ecology},
 publisher={Polish Academy of Sciences. Institute of Ecology. Publishing Office},
 keywords={reproduction, survival, population numbers, cycling, space-dependence},
}