@misc{Gwiazda_Robert_Contribution_1996,
 author={Gwiazda, Robert},
 editor={Polska Akademia Nauk. Instytut Ekologii},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Dziekanów Leśny},
 howpublished={online},
 year={1996},
 language={eng},
 abstract={One gram of the faeces of the black-headed gull (Larus ridibundus L.) and of mallard (Anas platyrhynchos L.) contains 78.6 mg P and 72.4 mg N and 8.5 mg P and 53.1 mg N respectively. The gull and the mallard defecated 0.96 g P and 0.88 g of N and 0.42 and 2.62 g per day per individual respectively. The participation of waterfowl in the nutrient loading to the reservoir was small (less than 1% of only inorganic P and N). The mallard significantly affects phosphorus and nitrogen cycling in the reservoir, and the gulls increase the phosphorus resources there.},
 type={Text},
 title={Contribution of water birds to nutrient loading to the ecosystem of mesotrophic reservoir},
 URL={http://rcin.org.pl/miiz/Content/86880/PDF/WA058_89666_P2840-T44_Eko-Pol-A-Nr-3-4.pdf},
 volume={44},
 number={3-4},
 journal={Ekologia Polska},
 publisher={Oficyna Wydawnicza Instytutu Ekologii PAN},
 keywords={Larus ridibundus, Anas platyrhynchos, defecation, phosphorus, nitrogen, eutrophication},
}