Substantial decline of Northern European peatland bird populations : Consequences of drainage

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Fraixedas , S , Linden , A , Meller , K , Lindström , Å , Keiss , O , Kålås , J A , Husby , M , Leivits , A , Leivits , M & Lehikoinen , A 2017 , ' Substantial decline of Northern European peatland bird populations : Consequences of drainage ' , Biological Conservation , vol. 214 , pp. 223-232 .

Title: Substantial decline of Northern European peatland bird populations : Consequences of drainage
Author: Fraixedas, Sara; Linden, Andreas; Meller, Kalle; Lindström, Åke; Keiss, Oskars; Kålås, John Atle; Husby, Magne; Leivits, Agu; Leivits, Meelis; Lehikoinen, Aleksi
Contributor organization: University of Helsinki
Finnish Museum of Natural History
Global Change and Conservation Lab
Date: 2017-10
Language: eng
Number of pages: 10
Belongs to series: Biological Conservation
ISSN: 0006-3207
Abstract: Northern European peatlands are important habitats for biological conservation because they support rich biodiversity and unique species compositions. However, historical management of peatland habitats has had negative consequences for biodiversity and their degradation remains a major conservation concern. Despite increasing awareness of the conservation value of peatlands, the statuses and ecological requirements of peat land species have remained largely understudied. Here, we first analysed temporal trends of Northern European peatland birds to document the status of their populations using bird data from five different countries. Second, we used Finnish monitoring data to assess habitat preferences of peatland bird species, hence helping to target conservation to the most relevant habitat types. There was a general decline of 40% in Northern European peatland bird population sizes in 1981-2014 (speed of decline 1.5%/year) largely driven by Finland, where populations declined almost 50% (2.0% annual decline). In Sweden and Norway, peatland bird populations declined by 20% during 1997-2014 (1.0% annual decline). In contrast, southern populations in Estonia and Latvia, where the majority of open peatlands are protected, showed a 40% increase during 1981-2014 (1.0% annual increase). The most important habitat characteristics preferred by common peatland species in Finland were openness and low tree height, while wetness proved to be an important feature for waders. Drainage of peatlands had clear negative effects on the densities of many species, with the only exception of rustic bunting, which specializes on edge habitats. Our findings call for more effective conservation actions in Northern European peatland habitats, especially in Finland where peatland drainage represents a major threat to biodiversity.
Subject: Boreal peatlands
Bird biodiversity
Habitat loss
Protected areas
1181 Ecology, evolutionary biology
Peer reviewed: Yes
Rights: cc_by_nc_nd
Usage restriction: openAccess
Self-archived version: acceptedVersion

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