@misc{Pętal_Joanna_Methods_1972,
 author={Pętal, Joanna},
 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={Studies on ants concentrate on the estimation of the size, production and food removed by ant populations this enabling the evaluation an the contribution of ants to the total ecosystem standing crop, and their role in ecosystem functioning and dynamics.},
 type={Text},
 title={Methods of investigating of the productivity of ants},
 URL={http://rcin.org.pl/miiz/Content/72224/PDF/WA058_86479_P2840-T20_Eko-Pol-A-Nr-2.pdf},
 volume={20},
 number={2},
 journal={Ekologia Polska},
 publisher={Państwowe Wydawnictwo Naukowe},
 keywords={ants, ecology, population, predators, Formicidae},
}