Multi‐decadal changes in phytoplankton biomass in northern temperate lakes as seen through the prism of landscape properties

Paltsev, Aleksey; Creed, Irena F.

doi:10.1111/gcb.16079

Cited by 10 publications

(11 citation statements)

References 143 publications

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“…As well, we note that lake-specific geomorphic properties (e.g., lake depth, elevation, area/depth ratio) also affected differences in air and water warming trends, both directly and through interactions with climate drivers (Fig. 3 ) 10 , 15 , 19 . For example, lake surface area and depth (and their ratio) affect the strength of stratification and can result in a net decrease in the whole lake average temperature 17 .…”

Section: Discussionmentioning

confidence: 71%

“…Generally, climatic features (e.g., irradiance, humidity, wind speed) are expected to be the predominant factors regulating differences in the rates of lake and atmospheric warming 3 , 14 , while parameters controlling the redistribution of heat within the lake have secondary effects on lake warming 10 . Indeed, variations in lake geomorphology (e.g., depth, water residence time, elevation) 15 – 17 , watershed characteristics (e.g., land use) 18 , 19 , and trophic status (e.g., water clarity) 17 , 20 , 21 can modulate climate effects on individual lakes by affecting how energy is distributed with depth. For example, Woolway et al 16 suggests that cold and deep lakes respond more rapidly to variation in AT, while others have found shallow lakes are more sensitive to air warming 15 , 22 .…”

Section: Introductionmentioning

confidence: 99%

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Controls of thermal response of temperate lakes to atmospheric warming

Zhou,

Leavitt,

Rose

et al. 2023

Nat Commun

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Atmospheric warming heats lakes, but the causes of variation among basins are poorly understood. Here, multi-decadal profiles of water temperatures, trophic state, and local climate from 345 temperate lakes are combined with data on lake geomorphology and watershed characteristics to identify controls of the relative rates of temperature change in water (WT) and air (AT) during summer. We show that differences in local climate (AT, wind speed, humidity, irradiance), land cover (forest, urban, agriculture), geomorphology (elevation, area/depth ratio), and water transparency explain >30% of the difference in rate of lake heating compared to that of the atmosphere. Importantly, the rate of lake heating slows as air warms (P < 0.001). Clear, cold, and deep lakes, especially at high elevation and in undisturbed catchments, are particularly responsive to changes in atmospheric temperature. We suggest that rates of surface water warming may decline relative to the atmosphere in a warmer future, particularly in sites already experiencing terrestrial development or eutrophication.

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Section: Discussionmentioning

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Controls of thermal response of temperate lakes to atmospheric warming

Zhou,

Leavitt,

Rose

et al. 2023

Nat Commun

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“…Given the empirical counterpart of our modeled system, our results are of high relevance in light of global warming and eutrophication, not only increasing the risk of blooms dominated by cyanobacteria or other inedible phytoplankton species (Davis et al, 2009 ; Paltsev & Creed, 2022 ) but also influencing the prevalence of parasitic infections (Gsell et al, 2013 ; Harvell et al, 2002 ; Ibelings et al, 2011 ), which for temperate regions are expected to rise with increasing temperature (Cohen et al, 2020 ). Based on direct phyto–zooplankton interactions, a decline in zooplankton would be expected with the increasing dominance of inedible phytoplankton (Lampert, 1987 ).…”

Section: Discussionmentioning

confidence: 84%

Critical role of parasite‐mediated energy pathway on community response to nutrient enrichment

Thongthaisong

Kasada

Grossart

et al. 2022

Ecology and Evolution

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Parasites form an integral part of food webs, however, they are often ignored in classic food web theory or limited to the investigation of trophic transmission pathways. Specifically, direct consumption of parasites by nonhost predators is rarely considered, while it can contribute substantially to energy flow in food webs. In aquatic systems, chytrids constitute a major group of fungal parasites whose free‐living infective stages (zoospores) form a highly nutritional food source to zooplankton. Thereby, the consumption of zoospores can create an energy pathway from otherwise inedible phytoplankton to zooplankton (“mycoloop”). This parasite‐mediated energy pathway might be of special importance during phytoplankton blooms dominated by inedible or toxic primary producers like cyanobacteria, which are on the rise with eutrophication and global warming. We theoretically investigated community dynamics and energy transfer in a food web consisting of an edible nonhost and an inedible host phytoplankton species, a parasitic fungus, and a zooplankton species grazing on edible phytoplankton and fungi. Food web dynamics were investigated along a nutrient gradient contrasting nonadaptive zooplankton species representative for filter feeders like cladocerans and zooplankton with the ability to actively adapt their feeding preferences like many copepod species. Overall, the importance of the mycoloop for zooplankton increases with nutrient availability. This increase is smooth for nonadaptive consumers. For adaptive consumers, we observe an abrupt shift from an almost exclusive preference for edible phytoplankton at low nutrient levels to a strong preference for parasitic fungi at high nutrient levels. The model predicts that parasitic fungi could contribute up to 50% of the zooplankton diet in nutrient‐rich environments, which agrees with empirical observations on zooplankton gut content from eutrophic systems during blooms of inedible diatoms or cyanobacteria. Our findings highlight the role of parasite‐mediated energy pathways for predictions of energy flow and community composition under current and future environmental change.

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“…High precipitation would have brought more nutrients into the lake through high surface runoff and catchment erosion, favoring lake eutrophication and cyanobacterial development Frontiers in Earth Science frontiersin.org (Sinha et al, 2017). However, this effect can be modulated by catchment landscape properties (Paltsev and Creed, 2022).…”

Section: Cyanobacterial Response To Mid-holocene Climate and Environm...mentioning

confidence: 99%

“…Although lake properties and catchment landscapes may complicate the processes of climate change and anthropogenic eutrophication on cyanobacterial blooms (Qin et al, 2020;Reinl et al, 2021;Paltsev and Creed, 2022), it was recognized that small and nutrient-rich lakes are more sensitive to increases in temperature while large and oligotrophic lakes are more sensitive to changes in precipitation patterns and associated nutrient supply (Kosten et al, 2012;Rigosi et al, 2014;Reinl et al, 2021;Paltsev and Creed, 2022). Here, a remote, alpine, small and eutrophic lake (Lake Mayinghai) on the Chinese Loess Plateau was investigated to provide implications for predicting the potential influences of future climate warming.…”

Section: Introductionmentioning

confidence: 99%

Synergistic warming- and catchment-driven mid-Holocene cyanobacterial development: Pigment evidence from shallow eutrophic Lake Mayinghai on the Chinese Loess Plateau

Zhang

Su²,

Zhang³

et al. 2023

Front. Earth Sci.

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The current lake environmental problem of harmful cyanobacterial blooms cannot be mitigated effectively despite numerous eutrophication control strategies, and climate warming may have been considered as a potential key driver. However, it is still unclear how climate change and associated natural processes influence cyanobacterial development. Here we use a sedimentary pigment record from a remote, alpine, small and eutrophic lake (Lake Mayinghai) on the Chinese Loess Plateau and take the mid-Holocene as an analog to explore the possible influences of temperature, precipitation and terrestrial vegetation on in-lake and catchment processes, algal compositional changes and cyanobacterial development. The pigment data indirectly suggest that a distinctly low β-carotene to chlorophyll a ratio during the mid-Holocene is likely due to an increase in non-nitrogen-fixing colonial coccoid cyanobacteria at the expense of nitrogen-fixing filamentous cyanobacteria. There are two probable synergistic driving mechanisms, of which one is high temperatures and associated increased lake thermal stratification and the other is high inorganic nitrogen supply and resultant increased lake nitrogen to phosphorus ratio. This study provides implications for the potential influences of future climate change on cyanobacterial development under a warmer, wetter and re-forested environment on the Chinese Loess Plateau.

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Multi‐decadal changes in phytoplankton biomass in northern temperate lakes as seen through the prism of landscape properties

Cited by 10 publications

References 143 publications

Controls of thermal response of temperate lakes to atmospheric warming

Controls of thermal response of temperate lakes to atmospheric warming

Critical role of parasite‐mediated energy pathway on community response to nutrient enrichment

Synergistic warming- and catchment-driven mid-Holocene cyanobacterial development: Pigment evidence from shallow eutrophic Lake Mayinghai on the Chinese Loess Plateau

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