Heatwave‐induced functional shifts in zooplankton communities result in weaker top‐down control on phytoplankton
Abstract Freshwater ecosystems are increasingly affected by rising annual mean temperatures and heatwaves. While heatwaves are expected to have more immediate effects than mean temperature increases on local communities, comparative experimental studies are largely lacking. We conducted a 1‐month me...
| Principais autores: | , , , , , , |
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| Formato: | Artigo |
| Idioma: | English |
| Publicado em: |
Wiley
2024-08-01
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| coleção: | Ecology and Evolution |
| Assuntos: | |
| Acesso em linha: | https://doi.org/10.1002/ece3.70096 |
| _version_ | 1827100232108736512 |
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| author | Thu‐Hương Huỳnh Zsófia Horváth Károly Pálffy Vivien Kardos Beáta Szabó Péter Dobosy Csaba F. Vad |
| author_facet | Thu‐Hương Huỳnh Zsófia Horváth Károly Pálffy Vivien Kardos Beáta Szabó Péter Dobosy Csaba F. Vad |
| author_sort | Thu‐Hương Huỳnh |
| collection | DOAJ |
| description | Abstract Freshwater ecosystems are increasingly affected by rising annual mean temperatures and heatwaves. While heatwaves are expected to have more immediate effects than mean temperature increases on local communities, comparative experimental studies are largely lacking. We conducted a 1‐month mesocosm experiment to test the effect of different warming treatments, constantly raised temperatures (+3°C) and recurring heatwaves (+6°C), on plankton communities. We specifically tested how shifts in zooplankton trait composition and functional groups are reflected in ecosystem function (top‐down control on primary producers). We found that heatwaves had a stronger and more immediate effect on zooplankton trait composition (specifically on body length and body mass) and functional groups. Heatwaves led to the decrease of small‐bodied grazers (i.e., Rotifera) and the dominance of larger omnivorous Copepoda, and these shifts resulted in weaker top‐down control, leading to elevated phytoplankton biomass. Altogether, our results highlight the importance of the indirect effects of heatwaves via inducing shifts in zooplankton functional groups and trait composition, which may lead to algal blooms. |
| first_indexed | 2025-03-20T08:16:04Z |
| format | Article |
| id | doaj.art-31d30756c85d44c7b1a4f6f3cba43fdb |
| institution | Directory Open Access Journal |
| issn | 2045-7758 |
| language | English |
| last_indexed | 2025-03-20T08:16:04Z |
| publishDate | 2024-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecology and Evolution |
| spelling | doaj.art-31d30756c85d44c7b1a4f6f3cba43fdb2024-09-27T14:05:59ZengWileyEcology and Evolution2045-77582024-08-01148n/an/a10.1002/ece3.70096Heatwave‐induced functional shifts in zooplankton communities result in weaker top‐down control on phytoplanktonThu‐Hương Huỳnh0Zsófia Horváth1Károly Pálffy2Vivien Kardos3Beáta Szabó4Péter Dobosy5Csaba F. Vad6Institute of Aquatic Ecology HUN‐REN Centre for Ecological Research Budapest HungaryInstitute of Aquatic Ecology HUN‐REN Centre for Ecological Research Budapest HungaryInstitute of Aquatic Ecology HUN‐REN Centre for Ecological Research Budapest HungaryInstitute of Aquatic Ecology HUN‐REN Centre for Ecological Research Budapest HungaryInstitute of Aquatic Ecology HUN‐REN Centre for Ecological Research Budapest HungaryInstitute of Aquatic Ecology HUN‐REN Centre for Ecological Research Budapest HungaryInstitute of Aquatic Ecology HUN‐REN Centre for Ecological Research Budapest HungaryAbstract Freshwater ecosystems are increasingly affected by rising annual mean temperatures and heatwaves. While heatwaves are expected to have more immediate effects than mean temperature increases on local communities, comparative experimental studies are largely lacking. We conducted a 1‐month mesocosm experiment to test the effect of different warming treatments, constantly raised temperatures (+3°C) and recurring heatwaves (+6°C), on plankton communities. We specifically tested how shifts in zooplankton trait composition and functional groups are reflected in ecosystem function (top‐down control on primary producers). We found that heatwaves had a stronger and more immediate effect on zooplankton trait composition (specifically on body length and body mass) and functional groups. Heatwaves led to the decrease of small‐bodied grazers (i.e., Rotifera) and the dominance of larger omnivorous Copepoda, and these shifts resulted in weaker top‐down control, leading to elevated phytoplankton biomass. Altogether, our results highlight the importance of the indirect effects of heatwaves via inducing shifts in zooplankton functional groups and trait composition, which may lead to algal blooms.https://doi.org/10.1002/ece3.70096climate changefunctional traitsheatwavemicrozooplanktonspecies interactionstop‐down control |
| spellingShingle | Thu‐Hương Huỳnh Zsófia Horváth Károly Pálffy Vivien Kardos Beáta Szabó Péter Dobosy Csaba F. Vad Heatwave‐induced functional shifts in zooplankton communities result in weaker top‐down control on phytoplankton Ecology and Evolution climate change functional traits heatwave microzooplankton species interactions top‐down control |
| title | Heatwave‐induced functional shifts in zooplankton communities result in weaker top‐down control on phytoplankton |
| title_full | Heatwave‐induced functional shifts in zooplankton communities result in weaker top‐down control on phytoplankton |
| title_fullStr | Heatwave‐induced functional shifts in zooplankton communities result in weaker top‐down control on phytoplankton |
| title_full_unstemmed | Heatwave‐induced functional shifts in zooplankton communities result in weaker top‐down control on phytoplankton |
| title_short | Heatwave‐induced functional shifts in zooplankton communities result in weaker top‐down control on phytoplankton |
| title_sort | heatwave induced functional shifts in zooplankton communities result in weaker top down control on phytoplankton |
| topic | climate change functional traits heatwave microzooplankton species interactions top‐down control |
| url | https://doi.org/10.1002/ece3.70096 |
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