Climate change amplifies the risk of potentially toxigenic cyanobacteria

© 2023 The Authors. Global Change Biology published by John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 29(2023), 18 vom: 20. Sept., Seite 5240-5249
1. Verfasser: Erratt, Kevin J (VerfasserIn)
Weitere Verfasser: Creed, Irena F, Lobb, David A, Smol, John P, Trick, Charles G
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article Anthropocene climate change cyanobacteria freshwater genetics microcystins paleolimnology water quality Microcystins
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500 |a Date Completed 15.08.2023 
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520 |a Cyanobacterial blooms pose a significant threat to water security, with anthropogenic forcing being implicated as a key driver behind the recent upsurge and global expansion of cyanobacteria in modern times. The potential effects of land-use alterations and climate change can lead to complicated, less-predictable scenarios in cyanobacterial management, especially when forecasting cyanobacterial toxin risks. There is a growing need for further investigations into the specific stressors that stimulate cyanobacterial toxins, as well as resolving the uncertainty surrounding the historical or contemporary nature of cyanobacterial-associated risks. To address this gap, we employed a paleolimnological approach to reconstruct cyanobacterial abundance and microcystin-producing potential in temperate lakes situated along a human impact gradient. We identified breakpoints (i.e., points of abrupt change) in these time series and examined the impact of landscape and climatic properties on their occurrence. Our findings indicate that lakes subject to greater human influence exhibited an earlier onset of cyanobacterial biomass by 40 years compared to less-impacted lakes, with land-use change emerging as the dominant predictor. Moreover, microcystin-producing potential increased in both high- and low-impact lakes around the 1980s, with climate warming being the primary driver. Our findings chronicle the importance of climate change in increasing the risk of toxigenic cyanobacteria in freshwater resources 
650 4 |a Journal Article 
650 4 |a Anthropocene 
650 4 |a climate change 
650 4 |a cyanobacteria 
650 4 |a freshwater 
650 4 |a genetics 
650 4 |a microcystins 
650 4 |a paleolimnology 
650 4 |a water quality 
650 7 |a Microcystins  |2 NLM 
700 1 |a Creed, Irena F  |e verfasserin  |4 aut 
700 1 |a Lobb, David A  |e verfasserin  |4 aut 
700 1 |a Smol, John P  |e verfasserin  |4 aut 
700 1 |a Trick, Charles G  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Global change biology  |d 1999  |g 29(2023), 18 vom: 20. Sept., Seite 5240-5249  |w (DE-627)NLM098239996  |x 1365-2486  |7 nnns 
773 1 8 |g volume:29  |g year:2023  |g number:18  |g day:20  |g month:09  |g pages:5240-5249 
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