Sweep net, surface sediment, and down core relative Cladocera assemblages from Finnish Lapland ...
Aim: To understand modern and past aquatic community responses to climate-induced shifts in productivity and ultraviolet radiation (UV) exposure.Location: Treeline ecotone from north boreal forest to subarctic tundra in northeastern Finnish Lapland.Taxon: Cladocera (Crustacea: Branchiopoda).Methods:...
| Main Authors: | , , , |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
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PANGAEA
2018
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.1594/pangaea.890563 https://doi.pangaea.de/10.1594/PANGAEA.890563 |
| Summary: | Aim: To understand modern and past aquatic community responses to climate-induced shifts in productivity and ultraviolet radiation (UV) exposure.Location: Treeline ecotone from north boreal forest to subarctic tundra in northeastern Finnish Lapland.Taxon: Cladocera (Crustacea: Branchiopoda).Methods: 31 small and shallow lakes were examined for summer epilimnetic communities (SEC) and surface sediment fossil integrative communities (FIC) of Cladocera for species distribution and their environmental correlations. A 700-year down-core sediment sequence from a treeline lake (Námmájávri) was analyzed for FICs and cladoceran-inferred UV-absorbance (ABSUV, indicative of melanin pigmentation) for evidence of long-term community and photoprotective responses and compared with records of paleotemperature, solar intensity, and composite sediment biogeochemistry by variance partitioning analysis.Results: The SECs were primarily correlated with specific UV absorbance (indicative of UV exposure) and total phosphorus and ... : Supplement to: Nevalainen, Liisa; Rantala, Marttiina V; Rautio, Milla; Luoto, Tomi P (2018): Spatio-temporal cladoceran (Branchiopoda) responses to climate change and UV radiation in subarctic ecotonal lakes. Journal of Biogeography, 45(8), 1954-1965 ... |
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