Temperature‐dependent responses to light and nutrients in phytoplankton DOI Creative Commons
Anna Lena Heinrichs, Anika Happe, Apostolos‐Manuel Koussoroplis

et al.

Ecology, Journal Year: 2025, Volume and Issue: 106(3)

Published: March 1, 2025

Abstract Nutrients and light are major resources controlling growth, biomass, community structure of phytoplankton. When looking at those individually, resource uptake biochemical transformation, thereby also the demand for resources, have been shown to be temperature‐dependent. However, there is still a lack understanding how temperature controls response multiple although simultaneous limitation by common single species whole communities. We conducted multifactorial, gradient‐design experiment growing four freshwater phytoplankton under 125 combinations temperature, light, nutrients (5 × 5 levels). In three species, we found evidence an interactive effect on growth that was modulated temperature. The high‐level supply both algal rate generally exceeded sum their individual effects. Conversely, lowest rates occurred not necessarily level but most extreme light:nutrient ratios (either only or were highest other remained low supply). These light‐nutrient effects resulting in when highest. Our study demonstrates modulates magnitude growth. Consequently, these findings highlight importance considering understand show responses would over‐ underestimated interactions taken into account. results provide first indication resource‐dependent will change warming world resources.

Language: Английский

Temperature‐dependent responses to light and nutrients in phytoplankton DOI Creative Commons
Anna Lena Heinrichs, Anika Happe, Apostolos‐Manuel Koussoroplis

et al.

Ecology, Journal Year: 2025, Volume and Issue: 106(3)

Published: March 1, 2025

Abstract Nutrients and light are major resources controlling growth, biomass, community structure of phytoplankton. When looking at those individually, resource uptake biochemical transformation, thereby also the demand for resources, have been shown to be temperature‐dependent. However, there is still a lack understanding how temperature controls response multiple although simultaneous limitation by common single species whole communities. We conducted multifactorial, gradient‐design experiment growing four freshwater phytoplankton under 125 combinations temperature, light, nutrients (5 × 5 levels). In three species, we found evidence an interactive effect on growth that was modulated temperature. The high‐level supply both algal rate generally exceeded sum their individual effects. Conversely, lowest rates occurred not necessarily level but most extreme light:nutrient ratios (either only or were highest other remained low supply). These light‐nutrient effects resulting in when highest. Our study demonstrates modulates magnitude growth. Consequently, these findings highlight importance considering understand show responses would over‐ underestimated interactions taken into account. results provide first indication resource‐dependent will change warming world resources.

Language: Английский

Citations

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