Destabilized microbial networks with distinct performances of abundant and rare biospheres in maintaining networks under increasing salinity stress

iMeta, Год журнала: 2023, Номер 2(1)

Опубликована: Янв. 9, 2023

Abstract Global changes such as seawater intrusion and freshwater resource salinization increase environmental stress imposed on the aquatic microbiome. A strong predictive understanding of responses microbiome to will help in coping with “gray rhino” events environment, thereby contributing an ecologically sustainable future. Considering that microbial ecological networks are tied stability ecosystem functioning abundant rare biospheres different biogeographic patterns important drivers functioning, roles maintaining need be clarified. Here we showed that, increasing salinity induced by freshwater‐to‐seawater transition, diversity reduced significantly taxonomic structure experienced a succession. The complexity were diminished stress. composition microorganisms supporting underwent sharp turnovers during biosphere behaving more robustly than biosphere. Notably, played much role stabilizing under low‐stress environments, but difference between their relative importance narrowed stress, suggesting weakened “Matthew effect” world. With in‐depth insights into ecology our findings highlight adjusting conservation strategies for maintain functions services response rising

Язык: Английский

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Addressing grand ecological challenges in aquatic ecosystems: how can mesocosms be used to advance solutions?

Oikos, Год журнала: 2025, Номер unknown

Опубликована: Фев. 11, 2025

Rapid and drastic anthropogenic impacts are affecting global biogeochemical processes driving biodiversity loss across Earth's ecosystems. In aquatic ecosystems, species distributions shifting, abundances of many have declined dramatically, threatened with extinction. addition to diversity, the ecosystem functions, services on which humans depend also being heavily impacted. Addressing these challenges not only requires direct action mitigate environmental but innovative approaches identify, quantify treat their effects in environment. Mesocosms valuable tools for achieving goals as they provide controlled environments evaluating stressors testing novel mitigation measures at multiple levels biological organisation. Here, we summarise discussions from a survey marine freshwater researchers who use mesocosm systems synthesise opportunities limitations advancing solutions grand ecological While most research utilising ecology has focused quantifying threats, there is largely unexplored potential using them test solutions. To overcome spatio‐temporal constraints, scale up size time‐scales studies, or alternatively, outcomes habitat‐scale restoration smaller scale. Enhancing connectivity future studies can help limitation isolation an important aspect recovery. Conducting ‘metacosm' studies: coordinated, distributed experiments spanning wide climatic gradients more regression‐based experimental designs tackle challenge context dependent results. Finally, collaboration theoretical, applied ecologists biogeochemists engineers technological developers will be necessary develop required advance human activities vulnerable

Язык: Английский

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The joint effects of salt and 6PPD contamination on a freshwater herbivore

The Science of The Total Environment, Год журнала: 2022, Номер 829, С. 154675 - 154675

Опубликована: Март 19, 2022

Язык: Английский

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Lake salinization drives consistent losses of zooplankton abundance and diversity across coordinated mesocosm experiments

Limnology and Oceanography Letters, Год журнала: 2022, Номер 8(1), С. 19 - 29

Опубликована: Фев. 3, 2022

Abstract Human‐induced salinization increasingly threatens inland waters; yet we know little about the multifaceted response of lake communities to salt contamination. By conducting a coordinated mesocosm experiment across 16 sites in North America and Europe, quantified zooplankton abundance (taxonomic functional) community structure broad gradient environmentally relevant chloride concentrations, ranging from 4 ca. 1400 mg Cl − L −1 . We found that crustaceans were distinctly more sensitive elevated than rotifers; yet, rotifers did not show compensatory increases crustacean declines. For crustaceans, our among‐site comparisons indicate: (1) highly consistent decreases taxon richness with salinity; (2) widespread sensitivity major taxonomic groups (Cladocera, Cyclopoida, Calanoida); (3) weaker loss functional diversity. Overall, study demonstrates aggregate properties can be adversely affected at concentrations anthropogenic lakes.

Язык: Английский

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The anthropogenic salt cycle

Nature Reviews Earth & Environment, Год журнала: 2023, Номер 4(11), С. 770 - 784

Опубликована: Окт. 31, 2023

Язык: Английский

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Global Lake Health in the Anthropocene: Societal Implications and Treatment Strategies

Earth s Future, Год журнала: 2024, Номер 12(4)

Опубликована: Апрель 1, 2024

Abstract The world's 1.4 million lakes (≥10 ha) provide many ecosystem services that are essential for human well‐being; however, only if their health status is good. Here, we reviewed common lake issues and classified them using a simple health‐based approach to outline living systems in need of oxygen, clean water balanced energy nutrient supply. main reason adopting some the terminology classification increase awareness understanding global issues. We show exposed various anthropogenic stressors which can result issues, ranging from thermal, circulatory, respiratory, nutritional metabolic infections poisoning. Of particular concern well‐being widespread drying, severe circulatory issue with cascading effects on health. estimated ∼115,000 evaporate twice as much they gain direct precipitation, making vulnerable potential drying inflowing waters follow trend, putting more than 153 people at risk who live close vicinity those lakes. Where remain untreated, will decline or even vanish, posing threat millions people. recommend coordinated multisectoral multidisciplinary prevention treatment strategies, include follow‐up progress an assessment resilience intensifying threats. Priority should be given implementing sewage treatment, mitigating climate change, counteracting introductions non‐native species decreasing uncontrolled releases chemicals into hydro‐, bio‐, atmosphere.

Язык: Английский

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Resurrection genomics provides molecular and phenotypic evidence of rapid adaptation to salinization in a keystone aquatic species

Proceedings of the National Academy of Sciences, Год журнала: 2023, Номер 120(6)

Опубликована: Фев. 2, 2023

Ecologists and evolutionary biologists are increasingly cognizant of rapid adaptation in wild populations. Rapid to anthropogenic environmental change is critical for maintaining biodiversity ecosystems services into the future. Anthropogenic salinization freshwater quickly emerging as a primary threat, which well documented northern temperate ecoregion. Specifically, many lakes have undergone extensive because urbanization associated increase impervious surfaces causing runoff, use road deicing salts (e.g., NaCl). It remains unclear whether increasing will lead extirpation species from these systems. Using “resurrection genomics” approach, we investigated keystone aquatic herbivore, Daphnia pulicaria, has evolved increased salinity tolerance severely salinized lake located Minnesota, USA. Whole-genome resequencing 54 clones hatched resting eggs that represent 25-y temporal contrast demonstrates regions genome containing genes related osmoregulation under selection study population. Tolerance assays revealed most recent more tolerant than older clones; this pattern concomitant with stabilizing lake. Together, our results demonstrate such can rapidly adapt salinization. Further, indicate may allow populations persist face food webs ecosystem they support despite global change.

Язык: Английский

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Ecological threshold responses of fish communities to lake eutrophication

Journal of Environmental Management, Год журнала: 2025, Номер 384, С. 125599 - 125599

Опубликована: Апрель 29, 2025

Язык: Английский

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Freshwater Salinization of Seasonal Ponds: High Salinity and Stratification Threaten Critical, Overlooked Habitats

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Май 15, 2025

Nearly a century of road salt use in the snowbelt region North America has led to substantial increases salinity levels freshwater habitats. Salt pollution lakes and rivers is well characterized. Lacking are broad insights for seasonal ponds. As critical habitats many endemic species, these small often poorly flushed surface waters especially vulnerable accumulating high salts other pollutants. Here, we measured 165 ponds, characterizing patterns across space, through time, over depth within We found that 70% ponds 37 m contained exceeding Canadian federal guidelines. 54% 25 exceeded less conservative US Within water column was stratified due combined density effects temperature. Bottom polluted were about 57% saltier than near-surface waters, though much this. Compared rivers, far more appear be compromised by deicing salt, overall, concentration appears substantially higher. Among aquatic habitats, experiencing most severe impacts salinization, with consequent on sensitive organisms.

Язык: Английский

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Experimental assessment of salinization effects on freshwater zooplankton communities and their trophic interactions under eutrophic conditions

Environmental Pollution, Год журнала: 2022, Номер 313, С. 120127 - 120127

Опубликована: Сен. 8, 2022

Freshwater ecosystems are becoming saltier due to human activities. The effects of increased salinity can lead cascading trophic interactions, affecting ecosystem functioning and energy transfer, through changes in community size structure. These be modulated by other environmental factors, such as nutrients. For example, communities developed under eutrophic conditions could less sensitive salinization cross-tolerance mechanisms. In this study, we used a mesocosm approach assess the gradient on zooplankton composition structure algal communities. Our results showed that biomass, diversity mean body decreased with chloride concentration induced salt addition. This change did not have phytoplankton. phytoplankton biomass after threshold 500 mg L-1 was reached, most likely direct toxic osmotic regulation nutrient uptake processes certain algae rather than response turnover or top-down control. study help put place mitigation strategies for eutrophication, which often co-occur freshwater ecosystems.

Язык: Английский

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