dc.contributor.author
Kraemer, Benjamin M.
dc.contributor.author
Mehner, Thomas
dc.contributor.author
Adrian, Rita
dc.date.accessioned
2019-11-13T09:35:12Z
dc.date.available
2019-11-13T09:35:12Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/25915
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-25674
dc.description.abstract
Lake ecosystems are deeply integrated into local and regional economies through recreation, tourism, and as sources of food and drinking water. Shifts in lake phytoplankton biomass, which are mediated by climate warming will alter these benefits with potential cascading effects on human well-being. The metabolic theory of ecology suggests that warming reduces lake phytoplankton biomass as basal metabolic costs increase, but this hypothesis has not been tested at the global scale. We use satellite-based estimates of lake surface temperature (LST) and lake surface chlorophyll-a concentration (chl-a; as a proxy for phytoplankton biomass) in 188 of the world’s largest lakes from 2002-2016 to test for interannual associations between chl-a and LST. In contrast to predictions from metabolic ecology, we found that LST and chl-a were positively correlated in 46% of lakes (p < 0.05). The associations between LST and chl-a depended on lake trophic state; warming tended to increase chl-a in phytoplankton-rich lakes and decrease chl-a in phytoplankton-poor lakes. We attribute the opposing responses of chl-a to LST to the effects of temperature on trophic interactions, and the availability of resources to phytoplankton. These patterns provide insights into how climate warming alters lake ecosystems on which millions of people depend for their livelihoods.
en
dc.format.extent
7 Seiten
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
freshwater ecology
en
dc.subject
ecosystem ecology
en
dc.subject
climate-change ecology
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::577 Ökologie
dc.title
Reconciling the opposing effects of warming on phytoplankton biomass in 188 large lakes
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.articlenumber
10762
dcterms.bibliographicCitation.doi
10.1038/s41598-017-11167-3
dcterms.bibliographicCitation.journaltitle
Scientific reports
dcterms.bibliographicCitation.volume
7
dcterms.bibliographicCitation.url
https://doi.org/10.1038/s41598-017-11167-3
refubium.affiliation
Biologie, Chemie, Pharmazie
refubium.affiliation.other
Institut für Biologie / Arbeitsbereich Zoologie
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.eissn
2045-2322