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.
Operational Program Digital Poland, 2014-2020, Measure 2.3: Digital accessibility and usefulness of public sector information; funds from the European Regional Development Fund and national co-financing from the state budget.
Dec 16, 2019
Dec 3, 2019
|Nr 3-4. Contribution of water birds to nutrient loading to the ecosystem of mesotrophic reservoir / Gwiazda R.||Dec 16, 2019|
Engel, Jacek Keller, Marek Leszkowicz, Jan Zawadzki, Jerzy
Vīksne, Jānis (1936- )
Kazulìn, Alâksandr Vasìl'evìč
Kowalska, Maria (nauki weterynaryjne)
Kazulìn, Alâksandr Vasìl'evìč Pavluschick, Tatiana
Avilova, Kseniâ Vsevolodovna Erëmkin, Grigorij Stanislavovič (1973- )