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Different climate scenarios alter dominance patterns among aquatic primary producers in temperate systems

Hansson, Lars Anders (författare)
Lund University,Lunds universitet,NanoLund: Center for Nanoscience,Annan verksamhet,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,Faculty of Engineering, LTH,Division aquatic ecology,Department of Biology,Faculty of Science,Centre for Environmental and Climate Science (CEC),Lund Univ, Dept Biol Aquat Ecol, Ecol Bldg, Lund, Sweden.
Ekvall, Mattias K. (författare)
Lund University,Lunds universitet,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Division aquatic ecology,Department of Biology,Faculty of Science,County Administrative Board, Skåne län,Lund Univ, Dept Biol Aquat Ecol, Ecol Bldg, Lund, Sweden.;Cty Adm Board Skane Environm & Climate, Malmö, Sweden.
He, Liang (författare)
Nanchang University,Nanchang Univ, Minist Educ, Key Lab Poyang Lake Environm & Resource Utilizat, Nanchang, Jiangxi, Peoples R China.
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Li, Zhongqiang (författare)
Hubei University,Hubei Univ, Fac Resource & Environm, Hubei Key Lab Reg Dev & Environm Response, Wuhan, Peoples R China.
Svensson, Marie (författare)
Lund University,Lunds universitet,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Division aquatic ecology,Department of Biology,Faculty of Science,Lund Univ, Dept Biol Aquat Ecol, Ecol Bldg, Lund, Sweden.
Urrutia-Cordero, Pablo (författare)
Uppsala universitet,Uppsala University,Lund University,Lunds universitet,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Division aquatic ecology,Department of Biology,Faculty of Science,Limnologi,Lund Univ, Dept Biol Aquat Ecol, Ecol Bldg, Lund, Sweden.
Zhang, Huan (författare)
Lund University,Lunds universitet,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Division aquatic ecology,Department of Biology,Faculty of Science,Chinese Academy of Sciences,Lund Univ, Dept Biol Aquat Ecol, Ecol Bldg, Lund, Sweden.;Chinese Acad Sci, Inst Hydrobiol, Wuhan, Peoples R China.
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 (creator_code:org_t)
ASLO, 2020
2020
Engelska 9 s.
Ingår i: Limnology and Oceanography. - : ASLO. - 1939-5590 .- 0024-3590. ; 65:10, s. 2328-2336
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • In a future climate change perspective, the interactions among different life-forms of primary producers will likely be altered, leading to changes in the relative dominance among macrophytes, filamentous, and planktonic algae. In order to improve the possibilities to forecast future ecosystem services and function, we therefore conducted a long-term mesocosm study where primary producers were exposed to different climate scenarios, including both a mean increase in temperature (4°C) and a similar energy input, but delivered as “heat waves” (fluctuations 0–8°C above ambient). We show that in shallow systems, future climate change scenarios will likely lead to higher total macrophyte biomasses, but also to considerable alterations in the macrophyte community composition. The biomass of filamentous algae (Cladophora) showed no significant difference among treatments, although effect size analyses identified a slight increase at heated conditions. We also show that future climate change will not necessarily lead to more phytoplankton blooms, although a considerable alteration in phytoplankton community composition is to be expected, with a dominance of cyanobacteria and Cryptophytes, whereas Chlorophyceae and diatoms will likely play a less pronounced role than at present. In a broader context, we conclude that the total biomass of macrophytes will likely increase in shallow areas, whereas phytoplankton may not show any strong changes in biomass in a future climate change scenario. Instead, the major changes among primary producers will likely be mirrored in a considerably different species composition than at present.

Ämnesord

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
NATURVETENSKAP  -- Biologi -- Ekologi (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Ecology (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap (hsv//swe)
NATURVETENSKAP  -- Biologi (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences (hsv//eng)
NATURAL SCIENCES  -- Biological Sciences (hsv//eng)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Oceanography, Hydrology and Water Resources (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Oceanografi, hydrologi och vattenresurser (hsv//swe)

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