Functionally reversible impacts of disturbances on lake food webs linked to spatial and seasonal dependencies

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Functionally reversible impacts of disturbances on lake food webs linked to spatial and seasonal dependencies

Urrutia-Cordero, Pablo (författare): Uppsala universitet,Uppsala University,Helmholtz Institute for Functional Marine Biodiversity,Carl von Ossietzky University of Oldenburg,Limnologi,Helmholtz Inst Funct Marine Biodivers 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.

Langenheder, Silke (författare): Uppsala universitet,Uppsala University,Limnologi

Striebel, Maren (författare): Carl von Ossietzky Univ Oldenburg, Inst Chem & Biol Marine Environm ICBM, Schleusenstr 1, D-26382 Wilhelmshaven, Germany.,Carl von Ossietzky University of Oldenburg

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Eklöv, Peter, Professor, 1960- (författare): Uppsala universitet,Uppsala University,Limnologi

Angeler, David (författare): Sveriges lantbruksuniversitet,Swedish University of Agricultural Sciences, Uppsala,Swedish Univ Agr Sci, Dept Aquat Sci & Assessment, Box 7050, S-75007 Uppsala, Sweden.,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment

Bertilsson, Stefan (författare): Sveriges lantbruksuniversitet,Uppsala universitet,Uppsala University,Swedish University of Agricultural Sciences, Uppsala,Limnologi,Swedish Univ Agr Sci, Dept Aquat Sci & Assessment, Box 7050, S-75007 Uppsala, Sweden.,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment

Csitári, Bianka (författare): Uppsala universitet,Uppsala University,Eötvös Loránd University,Limnologi,Eotvos Lorand Univ, Dept Microbiol, Pazmany Peter Stny 1-C, H-1117 Budapest, Hungary.

Hansson, Lars-Anders (författare): 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),Akvatisk ekologi,Forskargrupper vid Lunds universitet,Other operations, LTH,Faculty of Engineering, LTH,Division aquatic ecology,Department of Biology,Faculty of Science,Centre for Environmental and Climate Science (CEC),Aquatic Ecology,Lund University Research Groups,Lund Univ, Dept Biol Aquat Ecol, Ecol Bldg, SE-22362 Lund, Sweden.

Kelpsiene, Egle (författare): Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Biokemi och Strukturbiologi,Centrum för Molekylär Proteinvetenskap,Kemiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Biochemistry and Structural Biology,Center for Molecular Protein Science,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,Lund Univ, Dept Biochem & Struct Biol, SE-22100 Lund, Sweden.

Laudon, Hjalmar (författare): Sveriges lantbruksuniversitet,Swedish University of Agricultural Sciences, Umeå,Swedish Univ Agr Sci, Dept Forest Ecol & Management, S-90183 Umeå, Sweden.,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management

Lundgren, Maria (författare): Sveriges lantbruksuniversitet,Swedish University of Agricultural Sciences,Linnéuniversitetet,Institutionen för biologi och miljö (BOM),Swedish university of agricultural sciences, Sweden,Swedish Univ Agr Sci, Unit Field Based Forest Res, Asa Res Stn, SE-36394 Lammhult, Sweden.;Linnaeus Univ, Dept Biol & Environm Sci, SE-39182 Kalmar, Sweden.,Enheten för skoglig fältforskning,Unit for Field-based Forest Research,Linnaeus University

Osman, Omneya Ahmed (författare): Uppsala universitet,Uppsala University,Limnologi

Parkefelt, Linda (författare): Sweden Water Research, Sweden,Sweden Water Research AB,Sweden Water Res AB, SE-22370 Lund, Sweden.

Hillebrand, Helmut (författare): Helmholtz Inst Funct Marine Biodivers 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.;Helmholtz Ctr Polar & Marine Res, Aldfred Wegener Inst, Handelshafen 12, Bremerhaven, Germany.,Carl von Ossietzky University of Oldenburg,Helmholtz Institute for Functional Marine Biodiversity,Alfred-Wegener Institute, Helmholtz Center for Polar and Marine Research, Bremerhaven

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2021-02-28
2021
Engelska.
Ingår i: Ecology. - : John Wiley & Sons. - 0012-9658 .- 1939-9170. ; 102:4

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Increasing human impact on the environment is causing drastic changes in disturbance regimes and how they prevail over time. Of increasing relevance is to further our understanding on biological responses to pulse disturbances (short duration) and how they interact with other ongoing press disturbances (constantly present). Because the temporal and spatial contexts of single experiments often limit our ability to generalize results across space and time, we conducted a modularized mesocosm experiment replicated in space (five lakes along a latitudinal gradient in Scandinavia) and time (two seasons, spring and summer) to generate general predictions on how the functioning and composition of multitrophic plankton communities (zoo-, phyto- and bacterioplankton) respond to pulse disturbances acting either in isolation or combined with press disturbances. As pulse disturbance, we used short-term changes in fish presence, and as press disturbance, we addressed the ongoing reduction in light availability caused by increased cloudiness and lake browning in many boreal and subarctic lakes. First, our results show that the top-down pulse disturbance had the strongest effects on both functioning and composition of the three trophic levels across sites and seasons, with signs for interactive impacts with the bottom-up press disturbance on phytoplankton communities. Second, community composition responses to disturbances were highly divergent between lakes and seasons: temporal accumulated community turnover of the same trophic level either increased (destabilization) or decreased (stabilization) in response to the disturbances compared to control conditions. Third, we found functional recovery from the pulse disturbances to be frequent at the end of most experiments. In a broader context, these results demonstrate that top-down, pulse disturbances, either alone or with additional constant stress upon primary producers caused by bottom-up disturbances, can induce profound but often functionally reversible changes across multiple trophic levels, which are strongly linked to spatial and temporal context dependencies. Furthermore, the identified dichotomy of disturbance effects on the turnover in community composition demonstrates the potential of disturbances to either stabilize or destabilize biodiversity patterns over time across a wide range of environmental conditions.

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Av författaren/redakt...: Urrutia-Cordero, ...; Langenheder, Sil ...; Striebel, Maren; Eklöv, Peter, Pr ...; Angeler, David; Bertilsson, Stef ...; visa fler...; Csitári, Bianka; Hansson, Lars-An ...; Kelpsiene, Egle; Laudon, Hjalmar; Lundgren, Maria; Osman, Omneya Ah ...; Parkefelt, Linda; Hillebrand, Helm ...; visa färre...

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Artiklar i publikationen: Ecology

Av lärosätet: Linnéuniversitetet; Lunds universitet; Uppsala universitet; Sveriges Lantbruksuniversitet

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Functionally reversible impacts of disturbances on lake food webs linked to spatial and seasonal dependencies

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