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Experimental climat...
Experimental climate change weakens the insurance effect of biodiversity
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- Eklöf, Johan, 1978 (author)
- Stockholms universitet,Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences,Systemekologiska institutionen
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- Alsterberg, Christian, 1982 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences
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- Havenhand, Jonathan N., 1959 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap, Tjärnö marinbiologiska laboratorium,Linnécentrum för marin evolutionsbiologi (CEMEB),Department of Biological and Environmental Sciences, Tjärnö Marine Biological Laboratory,Linnaeus Centre for Marine Evolutionary Biology (CEMEB)
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- Sundbäck, Kristina, 1949 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences
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- Wood, Hannah L., 1980 (author)
- Gothenburg University,Göteborgs universitet,Linnécentrum för marin evolutionsbiologi (CEMEB),Institutionen för biologi och miljövetenskap,Linnaeus Centre for Marine Evolutionary Biology (CEMEB),Department of Biological and Environmental Sciences
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- Gamfeldt, Lars, 1975 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences
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(creator_code:org_t)
- 2012-06-08
- 2012
- English.
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In: Ecology Letters. - : Wiley. - 1461-023X .- 1461-0248. ; 15:8, s. 864-872
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Abstract
Subject headings
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- Ecosystems are simultaneously affected by biodiversity loss and climate change, but we know little about how these factors interact. We predicted that climate warming and CO 2-enrichment should strengthen trophic cascades by reducing the relative efficiency of predation-resistant herbivores, if herbivore consumption rate trades off with predation resistance. This weakens the insurance effect of herbivore diversity. We tested this prediction using experimental ocean warming and acidification in seagrass mesocosms. Meta-analyses of published experiments first indicated that consumption rate trades off with predation resistance. The experiment then showed that three common herbivores together controlled macroalgae and facilitated seagrass dominance, regardless of climate change. When the predation-vulnerable herbivore was excluded in normal conditions, the two resistant herbivores maintained top-down control. Under warming, however, increased algal growth outstripped control by herbivores and the system became algal-dominated. Consequently, climate change can reduce the relative efficiency of resistant herbivores and weaken the insurance effect of biodiversity.
Subject headings
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Keyword
- Food web
- Gammarus locusta
- Littorina littorea
- marine
- mesograzer
- metabolic theory of ecology
- ocean acidification
- ecosystem function
- trophic cascades
- prey
- diversity
- carbonic-acid
- community
- resilience
- vegetation
- consumer
- consequences
- naughton sj
- 1977
- american naturalist
- v111
- p515
- Food web
Publication and Content Type
- ref (subject category)
- art (subject category)
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