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Changes in species richness and composition of boreal waterbird communities: a comparison between two time periods 25 years apart
Finland.
Finland.
Kristianstad University, Faculty of Natural Science, Research environment Man & Biosphere Health (MABH). Kristianstad University, Faculty of Natural Science, Avdelningen för miljö- och biovetenskap.ORCID iD: 0000-0003-2337-4155
Kristianstad University, Faculty of Natural Science, Research environment Man & Biosphere Health (MABH). Kristianstad University, Faculty of Natural Science, Avdelningen för miljö- och biovetenskap.ORCID iD: 0000-0003-2345-3953
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2019 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 9, no 1Article in journal (Refereed) Published
Abstract [en]

Global measures of biodiversity indicate consistent decline, but trends reported for local communitiesare more varied. Therefore, we need better understanding of mechanisms that drive changes in diversity of local communities and of differences in temporal trends between components of local diversity, such as species richness and species turnover rate. Freshwater ecosystems are vulnerable to multiple stressors, and severe impacts on their biodiversity have been documented. We studied species richness and composition of local boreal waterbird communities in 1990/1991 and 2016 at 58 lakes distributed over six regions in Finland and Sweden. The study lakes represented not only local trophic gradients but also a latitudinal gradient in the boreal biome. While species richness tended to be lower in 2016 than in 1990/1991, species turnover was relatively high. Within foraging guilds, local species richness of diving ducks and surface feeding waterbirds decreased, whereas that of large herbivores increased. The number of species gained in local communities was higher in lakes with rich vegetation than in lakes with sparse vegetation. Conservation of boreal freshwater ecosystems would benefit from recognizing  hat large-scale environmental changes can affect local diversity via processes operating atfiner scales.

Place, publisher, year, edition, pages
2019. Vol. 9, no 1
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Ecology
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URN: urn:nbn:se:hkr:diva-19046DOI: 10.1038/s41598-018-38167-1ISI: 000458295900005PubMedID: 30741959OAI: oai:DiVA.org:hkr-19046DiVA, id: diva2:1287525
Available from: 2019-02-11 Created: 2019-02-11 Last updated: 2019-02-28Bibliographically approved

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Research environment Man & Biosphere Health (MABH)Avdelningen för miljö- och biovetenskap
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