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Search: WFRF:(Urrutia Cordero Pablo)
> (2020)
> Chaguaceda Fernando >
Climate warming and...
Climate warming and heat waves alter harmful cyanobacterial blooms along the benthic-pelagic interface
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- Urrutia Cordero, Pablo (author)
- Uppsala University,Lund University,Lunds universitet,Uppsala universitet,Limnologi,Lund Univ, Dept Biol, Aquat Ecol, Ecol Bldg, SE-22362 Lund, Sweden; HIFMB, Ammerlander Heerstr 231, D-26129 Oldenburg, Germany; Carl von Ossietzky Univ Oldenburg, Inst Chem & Biol Marine Environm ICBM, Schleusenstr 1, D-26382 Wilhelmshaven, Germany,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Division aquatic ecology,Department of Biology,Faculty of Science,Helmholtz Institute for Functional Marine Biodiversity,Carl von Ossietzky University of Oldenburg
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- Zhang, Huan (author)
- Lund University,Lunds universitet,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Division aquatic ecology,Department of Biology,Faculty of Science,Institute of Hydrobiology, Chinese Academy of Sciences
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- Chaguaceda, Fernando (author)
- Uppsala University,Uppsala universitet,Limnologi,Lund Univ, Dept Biol, Aquat Ecol, Ecol Bldg, SE-22362 Lund, Sweden,Lund University
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- Geng, Hong (author)
- Lund University,Lunds universitet,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Division aquatic ecology,Department of Biology,Faculty of Science,South Central University for Nationalities
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- Hansson, Lars Anders (author)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Other operations, LTH,Faculty of Engineering, LTH,Division aquatic ecology,Department of Biology,Faculty of Science,Centre for Environmental and Climate Science (CEC)
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(creator_code:org_t)
- 2020-03-20
- 2020
- English.
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In: Ecology. - : Wiley. - 0012-9658 .- 1939-9170. ; 101:7, s. 1-12
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Abstract
Subject headings
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- In addition to a rise in mean air and water temperatures, more frequent and intense extreme climate events (such as heat waves) have been recorded around the globe during the past decades. These environmental changes are projected to intensify further in the future, and we still know little about how they will affect ecological processes driving harmful cyanobacterial bloom formation. Therefore, we conducted a long-term experiment in 400-L shallow freshwater mesocosms, where we evaluated the effects of a constant +4°C increase in mean water temperatures and compared it with a fluctuating warming scenario ranging from 0 to +8°C (i.e., including heat waves) but with the same +4°C long-term elevation in mean water temperatures. We focused on investigating not only warming effects on cyanobacterial pelagic dynamics (phenology and biomass levels), but also on their recruitment from sedimentsâwhich are a fundamental part of their life history for which the response to warming remains largely unexplored. Our results demonstrate that (1) a warmer environment not only induces a seasonal advancement and boosts biomass levels of specific cyanobacterial species in the pelagic environment, but also increases their recruitment rates from the sediments, and (2) these species-specific benthic and pelagic processes respond differently depending on whether climate warming is expressed only as an increase in mean water temperatures or, in addition, through an increased warming variability (including heat waves). These results are important because they show, for the first time, that climate warming can affect cyanobacterial dynamics at different life-history stages, all the way from benthic recruitment up to their establishment in the pelagic community. Furthermore, it also highlights that both cyanobacterial benthic recruitment and pelagic biomass dynamics may be different as a result of changes in the variability of warming conditions. We argue that these findings are a critical first step to further our understanding of the relative importance of increased recruitment rates for harmful cyanobacterial bloom formation under different climate change scenarios.
Subject headings
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Keyword
- climate change
- climate warming
- cyanobacteria
- cyanobacterial blooms
- heat waves
- lakes
- mesocosms
- recruitment
- climate change
- climate warming
- cyanobacteria
- cyanobacterial blooms
- heat waves
- lakes
- mesocosms
- recruitment
Publication and Content Type
- ref (subject category)
- art (subject category)
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