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Multidecadal data indicate increase of aquatic insects in Central European streams
Senckenberg Research Institute and Natural History Museum Frankfurt, Department of River Ecology and Conservation, Gelnhausen, Germany; University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Vodňany, Czech Republic; CAMB, Center for Applied Mathematics and Bioinformatics, Gulf University for Science and Technology, Kuwait.
Umeå universitet, Humanistiska fakulteten, Institutionen för idé- och samhällsstudier, Miljöarkeologiska laboratoriet.ORCID-id: 0000-0003-1848-3154
Senckenberg Research Institute and Natural History Museum Frankfurt, Department of River Ecology and Conservation, Clamecystrasse 12, Gelnhausen, Germany; University of Duisburg–Essen, Faculty of Biology, Essen, Germany.
2023 (Engelska)Ingår i: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 879, artikel-id 163017Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

In recent years, declining insect biodiversity has sparked interest among scientists and drawn the attention of society and politicians. However, our understanding of the extent of this decline is incomplete, particularly for freshwater insects that provide a key trophic link between aquatic and terrestrial ecosystems, but that are also especially vulnerable to climate change. To investigate the response of freshwater insects to climate change, we quantified shifts in insect abundance and diversity across 7264 samples covering Central Europe during 1990–2018 and related these changes to annual data on temperature and precipitation. We observed both increases in richness (10.6 %) and abundance (9.5 %) of freshwater insects over the past three decades. These changes were related to increases in summer temperature and summer precipitation, which had negative effects on species richness, and to increases in winter temperature and precipitation, which had positive effects. Further we found that increased temperature was generally related to increased abundance, whereas increased precipitation was associated with declines, thus highlighting the particularly varying impacts on differing insect orders. Given that freshwater insects have been more severely affected by global change than marine and terrestrial species, the observed increases are a positive sign, but the overall situation of freshwater invertebrates is still critical.

Ort, förlag, år, upplaga, sidor
Elsevier, 2023. Vol. 879, artikel-id 163017
Nyckelord [en]
Assessment, Climate change, Community composition, Freshwater invertebrates, Macroinvertebrates, Stream quality
Nationell ämneskategori
Ekologi Klimatforskning
Identifikatorer
URN: urn:nbn:se:umu:diva-206458DOI: 10.1016/j.scitotenv.2023.163017ISI: 000973310200001PubMedID: 36963681Scopus ID: 2-s2.0-85151009685OAI: oai:DiVA.org:umu-206458DiVA, id: diva2:1749373
Tillgänglig från: 2023-04-06 Skapad: 2023-04-06 Senast uppdaterad: 2023-09-05Bibliografiskt granskad

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