- Effects of released farmed mallards on species richness of breeding waterbirds and amphibians in natural, restored, and constructed wetlands(2021-09-01) Söderquist, Pär; Dessborn, Lisa; Djerf, Henric; Elmberg, Johan; Gunnarsson, Gunnar; Holopainen, Sari; Kristianstad University - Söderquist, Pär; Kristianstad University - Dessborn, Lisa; Kristianstad University - Djerf, Henric; Kristianstad University - Elmberg, Johan; Kristianstad University - Gunnarsson, Gunnar; University of Helsinki - Holopainen, Sari