Our current understanding of lake ecosystem response to climate change: What have we really learned from the north temperate deep lakes?

Shimoda, Yuko; Äzim, M.E.; Perhar, Gurbir; Ramin, Maryam; Kenney, Melissa A.; Sadraddini, Somayeh; Gudimov, Alexey; Arhonditsis, George B.

doi:10.1016/j.jglr.2010.10.004

Cited by 153 publications

(127 citation statements)

References 137 publications

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“…We therefore focus the discussion primarily on general patterns observed across both marine and freshwater systems, and emphasize differences between the systems only when they can be attributed to biological characteristics such as community composition. Increased temperature advanced spring peaks consistently across systems and taxonomic groups, which agrees with predictions from dynamical models of pelagic producer-grazer systems (De Senerpont Domis et al 2007;Schalau et al 2008) and with long-term observations in lakes and marine systems (Edwards and Richardson 2004;Shimoda et al 2011;Weyhenmeyer et al 1999;Winder and Schindler 2004). The degree of advance in primary producers varied considerably among taxonomic groups.…”

Section: Discussionsupporting

confidence: 80%

“…A large number of studies have reported that the timing and magnitude of seasonal plankton blooms are shifting in response to climate change (Adrian et al 2006;Edwards and Richardson 2004;Meis et al 2009;Shimoda et al 2011). Plankton blooms are important features in seasonal aquatic environments where they drive many ecosystem and community processes and are a major source of energy input for higher trophic levels (Hjermann et al 2007;Smayda 1997;Winder and Cloern 2010).…”

Section: Introductionmentioning

confidence: 99%

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Spring phenological responses of marine and freshwater plankton to changing temperature and light conditions

et al. 2012

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Shifts in the timing and magnitude of the spring plankton bloom in response to climate change have been observed across a wide range of aquatic systems. We used meta-analysis to investigate phenological responses of marine and freshwater plankton communities in mesocosms subjected to experimental manipulations of temperature and light intensity. Systems differed with respect to the dominant mesozooplankton (copepods in seawater and daphnids in freshwater). Higher water temperatures advanced the bloom timing of most functional plankton groups in both marine and freshwater systems. In contrast to timing, responses of bloom magnitudes were more variable among taxa and systems and were influenced by light intensity and trophic interactions. Increased light levels increased the magnitude of the spring peaks of most phytoplankton taxa and of total phytoplankton biomass. Intensified size-selective grazing of copepods in warming scenarios affected phytoplankton size structure and lowered intermediate (20-200 lm)-sized phytoplankton in marine systems. In contrast, plankton peak magnitudes in freshwater systems were unaffected by temperature, but decreased at lower light intensities, suggesting that filter feeding daphnids are sensitive to changes in algal carrying capacity as mediated by light supply. Our analysis confirms the general shift toward earlier blooms at increased temperature in both marine and freshwater systems and supports predictions that effects of climate change on plankton production will vary among sites, depending on resource limitation and species composition.

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Section: Discussionsupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Spring phenological responses of marine and freshwater plankton to changing temperature and light conditions

et al. 2012

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“…Only a few studies (4 out of 35; 11%) (Blenckner et al 2007;Thies et al 2012) found that the direct or indirect effects of temperature in isolation were the main controlling driver of cyanobacterial biomass. Of these four studies, one was conducted in an oligotrophic lake (Bloch and Weyhenmeyer 2012), one in a eutrophic lake undergoing restoration (Thies et al 2012), and two included multiple ecosystems with different trophic states ranging from oligotrophic to eutrophic (Blenckner et al 2007;Shimoda et al 2011). Nutrients (i.e., either TN or TP, or both) in isolation were found to be solely responsible for changes in cyanobacteria in 8 of the 35 studies (23%) (Battarbee and Bennion 2012;Feuchtmayr et al 2012).…”

Section: Resultsmentioning

confidence: 99%

“…(2) Only a few studies (6 out of 35) quantitatively examined the interaction between nutrients and temperature on phytoplankton. Of those six papers, four of them (e.g., Elliott and May 2008;Shimoda et al 2011;Elliott 2012) were modeling studies that found synergistic interactions between the two drivers. (3) In the majority of the studies, the effects of nutrients and temperature were not analyzed for individual cyanobacterial taxa; instead, they considered cyanobacteria as an aggregate group (Jeppensen et Table 3.…”

Section: Discussionmentioning

confidence: 99%

The interaction between climate warming and eutrophication to promote cyanobacteria is dependent on trophic state and varies among taxa

Rigosi

Carey

Ibelings

et al. 2014

Limnology & Oceanography

358

235

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Cyanobacteria are predicted to increase due to climate and land use change. However, the relative importance and interaction of warming temperatures and increased nutrient availability in determining cyanobacterial blooms are unknown. We investigated the contribution of these two factors in promoting phytoplankton and cyanobacterial biovolume in freshwater lakes. Specifically, we asked: (1) Which of these two drivers, temperature or nutrients, is a better predictor of cyanobacterial biovolume? (2) Do nutrients and temperature significantly interact to affect phytoplankton and cyanobacteria, and if so, is the interaction synergistic? and (3) Does the interaction between these factors explain more of the variance in cyanobacterial biovolume than each factor alone? We analyzed data from . 1000 U.S. lakes and demonstrate that in most cases, the interaction of temperature and nutrients was not synergistic; rather, nutrients predominantly controlled cyanobacterial biovolume. Interestingly, the relative importance of these two factors and their interaction was dependent on lake trophic state and cyanobacterial taxon. Nutrients played a larger role in oligotrophic lakes, while temperature was more important in mesotrophic lakes: Only eutrophic and hyper-eutrophic lakes exhibited a significant interaction between nutrients and temperature. Likewise, some taxa, such as Anabaena, were more sensitive to nutrients, while others, such as Microcystis, were more sensitive to temperature. We compared our results with an extensive literature review and found that they were generally supported by previous studies. As lakes become more eutrophic, cyanobacteria will be more sensitive to the interaction of nutrients and temperature, but ultimately nutrients are the more important predictor of cyanobacterial biovolume.

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“…Other consequences of global warming were recently observed, including the development of harmful filamentous cyanobacteria, which is favored by reduced turnover with lake warming (Posch et al 2012). Furthermore, anthropogenic-induced changes in nutrient ratios have increased the susceptibility of large temperate lakes to several effects of rising air temperatures and the resulting heating of water bodies (Shimoda et al 2011). Apart from eutrophication, effects of climate will differ depending on site specificities.…”

Section: Discussionmentioning

confidence: 99%

A spatiotemporal investigation of varved sediments highlights the dynamics of hypolimnetic hypoxia in a large hard‐water lake over the last 150 years

Jenny

Arnaud

Dorioz

et al. 2013

Limnology & Oceanography

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The spatiotemporal distribution of biochemical varves spanning the last 150 yr was investigated using 40 cores collected over a depth gradient in a large subalpine lake-Lake Bourget-in the French Alps. Four-dimensional sedimentological, biological, and geochemical analyses show that varve preservation can be used as a reliable proxy to reconstruct annual-to-decadal oscillations of hypoxia in large lakes. The volume of hypoxic waters was calculated by integrating the volume between the lake bottom and the depth of the shallowest varve-bearing core for each year. Although Lake Bourget bottom waters have been oxic over the last 9000 yr, severe hypoxia has occurred only since 1933 6 1. The volume of hypoxic waters showed, thereafter, a succession of pronounced fluctuations, leading to an increase of 8% of the total lake volume in the 1960s, a decline in the 1980s, and a second, ongoing increase since 1990. Whereas the initial onset of persistent hypoxic conditions could be attributed to eutrophication due to nutrient-rich inputs from sewage water and/or diffuse contamination, the later fluctuations were also driven by climatic factors, i.e., flooding, rising air temperatures, and phosphorus-independent changes in primary production. Hence, cumulative effects related to global warming seem to have driven hypolimnetic hypoxic conditions since equilibrium was initially disrupted due to a drastic shift in the trophic state.In both marine and freshwater ecosystems, hypoxia In many marine and freshwater ecosystems, humaninduced eutrophication, as a result of nutrient-mainly N and P-over-enrichment of waters, has caused bottomwater hypoxia (Carpenter 2005;Diaz and Rosenberg 2008). It seems logical, therefore, that nutrient abatement measures would result in a return to oxic conditions in bottom waters. However, recent research has shown that climatic changes can also trigger deoxygenation of deep habitats (Deutsch et al. 2011). Climate warming alters the water temperature and water-mass stability, which can affect bottom oxygen conditions by decreasing dioxygen In Lake Bourget, most symptoms of eutrophication (the increase in N : P ratio, the increase in water column transparency in spring, and the reduction in chlorophyll a concentrations) disappeared within the last 30 yr in response to a drastic drop in dissolved P content in water (Jacquet et al. 2005) following a restoration program that started in the 1980s. Counterintuitively, severe hypoxic conditions (defined here as the prolonged absence of bioavailable O 2 in the hypolimnion, leading to a drastic reduction of benthic fauna) still prevail in bottom waters, precluding a return to pre-industrial ecosystem conditions ). Our objective is to reconstruct the yearly intensity of hypolimnetic hypoxia over the last 150 yr in Lake Bourget and to qualitatively explore potential forcing factors related to nutrient concentration and climate.Because long-term monitoring data are scarce or missing and almost never cover the pre-industrial period, long-term

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Our current understanding of lake ecosystem response to climate change: What have we really learned from the north temperate deep lakes?

Cited by 153 publications

References 137 publications

Spring phenological responses of marine and freshwater plankton to changing temperature and light conditions

Spring phenological responses of marine and freshwater plankton to changing temperature and light conditions

The interaction between climate warming and eutrophication to promote cyanobacteria is dependent on trophic state and varies among taxa

A spatiotemporal investigation of varved sediments highlights the dynamics of hypolimnetic hypoxia in a large hard‐water lake over the last 150 years

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