Are Ecomorphological Associations among Dabbling Ducks Consistent at Different Spatial Scales?Hannu Pöysä, Johan Elmberg, Petri Nummi and Kjell Sjöberg · Oikos · 1996

Individual foraging behaviour indicates resource limitation: an experiment with mallard ducklingsNummi, Petri; Sjöberg, Kjell; Pöysä, Hannu; Elmberg, Johan · Canadian Journal of Zoology · 2000

Sustainable management of migratory European ducks: finding model speciesHolopainen, Sari; Arzel, Céline; Elmberg, Johan; Fox, Anthony D.; Guillemain, Matthieu; Gunnarsson, Gunnar; Nummi, Petri; Sjöberg, Kjell; Väänänen, Veli-Matti; Alhainen, Mikko; Pöysä, Hannu · Wildlife Biology · 2018

Harvest mortality in North American mallards: A reply to Sedinger and HerzogPöysä, Hannu; Dessborn, Lisa; Elmberg, Johan; Gunnarsson, Gunnar; Nummi, Petri; Sjöberg, Kjell; Suhonen, Sari; Söderquist, Pär · The Journal of Wildlife Management · 2013

Harvest Mortality in North American Mallards: A Reply to Sedinger and HerzogHANNU PÖYSÄ, LISA DESSBORN, JOHAN ELMBERG, GUNNAR GUNNARSSON, PETRI NUMMI, KJELL SJÖBERG, SARI SUHONEN and PÄR SÖDERQUIST · The Journal of Wildlife Management · 2013

Experimental evidence for density-dependent survival in mallard (Anas platyrhynchos) ducklingsGunnar Gunnarsson; Johan Elmberg; Kjell Sjöberg; Hannu Pöysä; Petri Nummi · 2006

Interspecific interactions and co-existence in dabbling ducks: observations and an experimentJohan Elmberg; Hannu Pöysä; Kjell Sjöberg; Petri Nummi · 1997