Management

Wetlands are rich in biodiversity, but globally threatened by many anthropogenic factors.  Wetlands and their associated species, e.g. amphibians and bats, have been in drastic decline in many areas. Much of wetland management has been motivated by interest of improving the habitats of hunted waterfowl, benefiting also other species. We are studying the methods and their effect to wetland ecosystems.

Wetland restoration in Maaninka, Eastern-Finland. © Veli-Matti Väänänen
Wetland restoration in Maaninka, Eastern-Finland. © Veli-Matti Väänänen

Our studies about the effects of wetland restoration covers many species from invertebrates to waterbirds.

Grazing by cattle maintains open shore meadows benefitting waterbird breeding. © Veli-Matti Väänänen
Grazing by cattle maintains open shore meadows benefitting waterbird breeding. © Veli-Matti Väänänen

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Removal experiments of alien predators are an example of hands-on research. In Viikki bay nature conservation area next to the University campus,  a continuous predator removal project takes place. Actual removal is carried out by a hunting organization of university students, Viikin akateemiset metsästäjät.

Raccoon dog trapped during the wetlands predator removal experiment. © Veli-Matti Väänänen
Raccoon dog trapped during the wetlands predator removal experiment. © Veli-Matti Väänänen

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Ducks are important game birds. We are studying the effects of hunting to duck populations.

Hunting limits duck populations. © Veli-Matti Väänänen
Hunting limits duck populations. © Veli-Matti Väänänen

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Many waterbird populations have declined. In our research we try to identify bottlenecks affecting waterbird breeding success. Our aim is to develop mitigation measures with which breeding success could be improved.

Red-throated Loons have accepted the man-made rafts in the National Park of Nuuksio near the capital city of Helsinki.   © Veli-Matti Väänänen
Red-throated Loons have accepted the man-made rafts in the National Park of Nuuksio near the capital city of Helsinki. © Veli-Matti Väänänen