@misc{Olejniczak_Izabella_The_1998,
 author={Olejniczak, Izabella},
 editor={Polish Academy of Sciences. Institute of Ecology},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Dziekanów Leśny},
 howpublished={online},
 year={1998},
 language={eng},
 abstract={Comparisons between the carabid communities of natural and drained fens in the Biebrza Valley (NE Poland) were made on the basis of trapped material. Fen drainage appears to result in a restructuring of species composition as there is only a limited (20-40%) similarity between the communities in natural and drained areas. The lowest species diversity was noted for a drained meadow on alder peat. Agonum moestum was dominant on natural fens, and in the one not cultivated and periodically flooded site on drained fens and Carabus granulatus or Pterostichus nigrita on drained ones. Trophic structure also differed, with hemizoophages of the genera Amara and Harpalus associated with agrocoenoses being present on drained fens but absent from natural ones. Chlaenius costulatus, a species now rare in Poland, is typical of peatlands, but was not present on drained sites. The number of sites accesible for it have declined as a result of wetland drainage.},
 type={Text},
 title={The carabid communities of natural and drained peatlands in the Biebrza Valley, NE Poland},
 URL={http://rcin.org.pl/Content/98269/PDF/WA058_90698_P2840-T46_Eko-Pol-A-Nr-3.pdf},
 volume={46},
 number={3},
 journal={Polish Journal of Ecology},
 publisher={Polish Academy of Sciences. Institute of Ecology. Publishing Office},
 keywords={Carabidae, peatlands, drainage, community structure, seasonal dynamics},
}