Počet záznamů: 1  

Accelerated recovery of lake macroinvertebrates in the third decade since the reversal of acidification

  1. 1.
    0583780 - BC 2024 RIV NL eng J - Článek v odborném periodiku
    Petruželová, J. - Bojková, J. - Sychra, J. - de Donnova, S. - Vrba, Jaroslav - Polášková, V. - Seifert, L. - Šorfová, V. - Kopáček, Jiří
    Accelerated recovery of lake macroinvertebrates in the third decade since the reversal of acidification.
    Science of the Total Environment. Roč. 892, Jun (2023), č. článku 164553. ISSN 0048-9697. E-ISSN 1879-1026
    Grant CEP: GA ČR GA22-05421S
    Institucionální podpora: RVO:60077344
    Klíčová slova: bohemian forest lakes * biological recovery * mountain lakes * aquatic insects
    Obor OECD: Ecology
    Impakt faktor: 9.8, rok: 2022
    Způsob publikování: Omezený přístup
    https://doi.org/10.1016/j.scitotenv.2023.164553

    Chemical reversal from acidification has been progressing in European freshwaters since the late 1980s, responding to successful control of atmospheric pollution by acidifying emissions. However, biological recovery is often delayed after improvements in water composition. We studied macroinvertebrate recovery from acidification in eight glacial lakes in the Bohemian Forest (central Europe) between 1999 and 2019. The chemical composition of these lakes reflects a complex of environmental changes, dominated by a very steep decline in acid deposition and, currently, by elevated nutrient leaching following climate-induced tree dieback within their catchments. Temporal trends in species richness, abundance, species traits and community composition were evaluated with regard to water chemistry, littoral habitat properties and fish colonisation. The results showed accelerated recovery of macroinvertebrates following two decades of gradual improvement in water composition and slowly progressing biological rehabilitation. We observed a signif-icant increase in macroinvertebrate species richness and abundance, coupled with distinct changes in community com-position, the extent of changes varying between lakes, reflecting different littoral habitat properties (vegetated vs. stony) and water chemistry. Overall, the communities shifted toward more specialised (grazers, filterers, and phytophilous species) and acid-tolerant taxa at the expense of detritivorous, eurytopic and acid-resistant taxa. Where fish reappeared, open-water taxa declined greatly. Compositional changes were likely driven by the combined effects of water chemistry reversal, rehabilitation of habitat conditions and fish colonisation. Despite favourable trends, communities in recovering lakes still lack several biotic elements, particularly less vagile, acid-sensitive taxa and specialised herbivores known from the regional species pool. It is expected that future progress in lake recovery will be further promoted or inhibited by stochastic colonisation or disturbance events.
    Trvalý link: https://hdl.handle.net/11104/0351783

     
     
Počet záznamů: 1  

  Tyto stránky využívají soubory cookies, které usnadňují jejich prohlížení. Další informace o tom jak používáme cookies.