The response of Cladocerans to recent environmental forcing in an Alpine Lake on the SE Tibetan Plateau

Kong, Lingyang; Yang, Xiangdong; Kattel, Giri; Anderson, Nicholas; Hu, Zhujun

doi:10.1007/s10750-016-2868-6

Cited by 22 publications

(5 citation statements)

References 61 publications

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“…The significant positive relationship between Bosminidae and eutrophic species B. longirostris with TN and TP further proved that Bosminidae had an advantage in the eutrophic process (Table 2). In particular, B. longirostris demonstrated strong adaptability and sensitivity in a wide range of water environments, such as the eutrophic status, warming waters, and metal-contaminated lakes in previous studies (Boucherle and Züllig, 1983;De Kluijver et al, 2012;Labaj et al, 2015;Kong et al, 2017;Cheng et al, 2020b). Our study showed that Bosminidae abundance increased with the increase in the outbreak intensity of cyanobacteria in eutrophic lake areas (Figures 3, 4).…”

Section: A B Figuresupporting

confidence: 66%

Intensified sensitivity and adaptability of zooplankton Bosminidae in subtropical shallow freshwater lakes with increasing trophic level

et al. 2023

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The deterioration in lake water environments, especially increasing lake eutrophication, is prevalent all over the world, which has seriously affected the balance and stability of the internal ecosystem of lakes. In this study, modern water and sediment samples were collected from three subtropical freshwater lakes with significant differences in nutrient levels to analyze the concentration of the zooplankton Cladocera Bosminidae and its relationship with lakes’ ecological changes. The results show that the deterioration in lake water environments caused by increasing eutrophication limits the survival of most zooplankton. However, the Bosminidae shows a positive adaptability to eutrophication and high sensitivity to the changes in the lake environment. In addition, the lake eutrophication process caused by the intensification of human activities enhances the survival advantage of Bosminidae with more food sources, which is more conducive to its rapid reproduction.

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Section: A B Figuresupporting

confidence: 66%

Intensified sensitivity and adaptability of zooplankton Bosminidae in subtropical shallow freshwater lakes with increasing trophic level

et al. 2023

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“…Although sedimentary pigment can be influenced by degradation effects downcore, the relatively stable ratio of Chl a and its degradation product Pheophytin a indicate stable preservation conditions in the CQ Lake (Figure 3M), similar to many other deep lakes (McGowan, 2013;Chen et al, 2018). The unambiguous increase in primary productivity and ecological changes can be widely observed in neighboring subalpine lakes from pigment and diatom proxies (Hu et al, 2014(Hu et al, , 2017Kong, L. et al, 2017;Wang et al, 2020). For example, the pigment PCA1 in nearby Shade Co shows consistent increase in primary productivity in the last few decades (Figure 3N), and similar trend can also be recorded in diatom composition (Figure 3O).…”

Section: Discussionmentioning

confidence: 55%

“…Climate warming can stimulate changes in primary producer communities through directly heating surface lake water, shortening the duration, thinning the ice-cover, and altering thermal stratification, or indirectly affects ecological changes by interaction with nutrient recycling (Catalan et al, 2013;Woolway et al, 2020). Recent studies indicate algal communities and diatom compositions display a trend towards long-term warming over the past century (Hu et al, 2017;Kong, L. et al, 2017). Specifically, reduced ice cover and enhanced thermal stratification caused by climate warming induce the diatom shifts from benthic Fragilaria taxa to planktonic Cyclotella with a preference of warm condition (Smol et al, 2005;Hu et al, 2014;Rühland et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Synergistic effects of climate warming and atmospheric nutrient deposition on the alpine lake ecosystem in the south-eastern Tibetan Plateau during the Anthropocene

et al. 2023

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Alpine lakes on the Tibetan Plateau are highly sensitive to global change and have been recognized as the sentinel of climate warming. However, anthropogenic impacts in populated area are migrating to these remote areas via transporting particulate nutrients by atmospheric deposition. Whether warming and nutrient deposition would impose additive or synergistic effects on the lake ecosystem remains largely unknown. Here, we present multi-proxy (sediment pigment and geochemistry) records during the past two centuries at the Cuoqia Lake in the southeast Tibetan Plateau. We found that the lake exhibited rapid ecological changes since 1980 AD characterized by an increase in primary productivity due to algal proliferation, with more rapid growth of green algae and diatoms. These findings are in concert with many other lakes (e.g., Moon Lake and Shade Co) in the same area, suggesting a consistent pattern of ecosystem evolution at the region scale. Statistical analyses suggested that nutrient deposition and climate warming were strongly associated with the variations in primary productivity and algae composition, exerting both individual and interactive effects. In addition, scenario analyses with a well-established process-based ecosystem model further revealed that the two factors not only individually, but also synergistically promoted the algal proliferation and community succession. Such synergy is evident in that the effect of lake warming would be more pronounced under higher nutrient deposition scenario, which is potentially due to higher temperature-driven mineralization in warmer conditions, and higher efficiency of nutrient utilization under enhanced light availability attributing to declining ice thickness and duration in cold seasons. Overall, our study proposes the existence and quantifies the synergistic impacts of climate warming and anthropogenic activities in driving the ecological changes in remote alpine lakes on the Tibetan Plateau. The lake ecological consequences driven by individual factor would be worsen by such synergy, so that we cannot predict the lake ecosystem trajectory in the future based on each factor separately, and more efforts than previously expected would be needed for the lake restoration and management.

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“…Many alpine water ecosystems are naturally fishless, creating dynamic pelagic communities that are particularly sensitive to external changes (Kong et al 2016). In the Canadian Rockies, 20% of naturally fishless lakes were stocked with cutthroat, rainbow and/or brook trout from the early 1900s to 1980s for recreational angling (Donald 1987).…”

Section: Biological Invasionmentioning

confidence: 99%

Alpine limnology of the Rocky Mountains of Canada and the USA in the context of environmental change

Redmond

2018

Environ. Rev.

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The cumulative impacts of multiple environmental and anthropogenic stressors on freshwater biodiversity have been studied in systems across the globe. The magnitude of multiple interdependent stressors on alpine systems may lead to increased primary productivity and jeopardize these unique communities. In this review, the consequences of individual stressors on alpine lake and pond ecology are synthesized, as well as the cumulative and potentially synergistic or antagonistic effects of multiple stressors. Beside temperature variability, other stressors reviewed include ultra violet (UV) radiation, organic pollutants, nutrient deposition, and biological invasions. Each stressor was evaluated individually and in combination with increasing water temperatures. In alpine environments, climatic warming is anticipated to increase with elevation, therefore amplifying the effects of temperature-related responses. The purpose of this review is to highlight the ecological effects of climate change on alpine lakes and ponds in the Rocky Mountains of North America and fill knowledge gaps between disciplines of aquatic studies. This work underscores that to better understand and face the overall effects of climate change on alpine biota, investigations must continue to assess the compounded impacts of multiple stressors. Emphasis must be put on the standardization of monitoring methods across alpine regions to aid in consistent trend and prediction analysis within the context of both current and future climate change.

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The response of Cladocerans to recent environmental forcing in an Alpine Lake on the SE Tibetan Plateau

Cited by 22 publications

References 61 publications

Intensified sensitivity and adaptability of zooplankton Bosminidae in subtropical shallow freshwater lakes with increasing trophic level

Intensified sensitivity and adaptability of zooplankton Bosminidae in subtropical shallow freshwater lakes with increasing trophic level

Synergistic effects of climate warming and atmospheric nutrient deposition on the alpine lake ecosystem in the south-eastern Tibetan Plateau during the Anthropocene

Alpine limnology of the Rocky Mountains of Canada and the USA in the context of environmental change

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