@misc{Gissel_Nielsen_Mogens_Production_1972,
 author={Gissel Nielsen, Mogens},
 editor={Polish Academy of Sciences, Institute of Ecology},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 howpublished={online},
 year={1972},
 language={eng},
 abstract={Different methods for labelling ants with radioisotopes have been tried. Based on a series of labellings with 24Na it was possible to follow the fluctuation in the population of workers. The Lincoln index was used. To measure the production of workers a series of 32P labellings were made. The production of ants was calculated from a consideration of the population density, the percentage of ants labelled, and the percentage of labelled ants which should be expected assuming that no death occurred after the labelling. The methods were tested on a population of Lasius alienus (Först). In this population the density fluctuated from 9,700 to 18,000 during the summer and the production was estimated to be 34,000 workers.},
 type={Text},
 title={Production of workers in ant nest},
 URL={http://rcin.org.pl/Content/72225/PDF/WA058_86488_P2840-T20_Eko-Pol-A-Nr-7.pdf},
 volume={20},
 number={7},
 journal={Ekologia Polska},
 publisher={Państwowe Wydawnictwo Naukowe},
 keywords={ants, ecology, behavior, Formicidae},
}