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20 resultsShowing papers similar to Combined effects of global warming and microplastic exposure from individual to populational levels of a benthic copepod
ClearCombined effects of global warming and microplastic exposure from individual to populational levels of a benthic copepod
This study examined the combined effects of global warming and microplastic exposure on aquatic organisms from the individual to the population level, investigating how these two co-occurring stressors interact. Warming amplified some microplastic effects, suggesting that climate change will exacerbate the ecological consequences of plastic pollution in aquatic ecosystems.
Long-term adverse effects of microplastics on Daphnia magna reproduction and population growth rate at increased water temperature and light intensity: Combined effects of stressors and interactions
Researchers investigated how increased water temperature and light intensity affect the long-term toxicity of microplastics to the water flea Daphnia magna. They found that microplastics caused mortality, reduced growth, and decreased reproduction across all conditions, but these effects were significantly worsened by both higher temperature and brighter light. The study suggests that climate change factors may synergistically amplify the harmful impacts of microplastic pollution on freshwater zooplankton.
Interactive effects of warming and microplastics on metabolism but not feeding rates of a key freshwater detritivore
Freshwater detritivores were exposed to microplastics at environmentally realistic concentrations under two temperature conditions to separate and combine effects, finding that warming and microplastics interacted to significantly increase metabolic rates but had no combined effect on feeding rates. The results highlight the importance of considering multiple stressors when assessing freshwater organism responses to microplastics under climate change.
Meta-analysis reveals temperature increase exacerbates microplastic toxicity in freshwater invertebrates
This meta-analysis pools data from multiple studies to show that rising temperatures make microplastics more toxic to freshwater invertebrates. The combined stress of warming water and plastic pollution caused greater harm to growth, reproduction, and survival than either stressor alone, suggesting that climate change will worsen the ecological and health impacts of microplastic contamination.
Combined exposure of poly(lactic-co-glycolic acid) microplastics and global warming affects the population dynamics of a coastal copepod
This study examined combined effects of PLGA microplastics and 3°C temperature increase on the benthic copepod Nitokra spinipes, using dynamic energy budget modeling to extrapolate from individual to population effects. Temperature amplified the negative effects of microplastics on copepod filtration rates and population growth, suggesting climate warming will worsen microplastic impacts on marine invertebrates.
Physiological and behavioural responses of aquatic organisms to microplastics and experimental warming
Researchers tested how microplastic exposure combined with different water temperatures affected the breathing, feeding, and movement of two common freshwater invertebrates. They found that while temperature had strong effects on all measured behaviors, microplastics caused additional changes in feeding rates and movement patterns that varied between species. The study highlights that the biological effects of microplastics may be amplified or altered under warming climate conditions.
Combined effects of polystyrene microplastics and thermal stress on the freshwater mussel Dreissena polymorpha
Freshwater mussels (Dreissena polymorpha) exposed simultaneously to elevated temperature and microplastics showed greater immune suppression and oxidative stress than mussels exposed to either stressor alone, suggesting climate change warming will amplify microplastic toxicity in freshwater ecosystems.
Warming temperatures exacerbate effects of microplastics in a widespread zooplankton species.
This study found that warmer water temperatures made microplastics significantly more harmful to Daphnia (water fleas), reducing their survival and reproduction at 20 and 24 degrees Celsius but not at 12 degrees. The combination of warming temperatures and microplastic pollution was worse than either stressor alone. As climate change warms lakes and rivers, this research suggests that the toxic effects of microplastic pollution on aquatic ecosystems, and the food chains humans depend on, may get worse.
The thermal regime modifies the response of aquatic keystone species Daphnia to microplastics: Evidence from population fitness, accumulation, histopathological analysis and candidate gene expression
Researchers found that temperature plays a key role in how toxic microplastics are to the water flea Daphnia magna. Microplastic exposure caused increased mortality, reduced reproduction, and slower population growth, with these negative effects becoming much more pronounced at higher temperatures. The study suggests that warming water temperatures due to climate change may amplify the harmful impacts of microplastic pollution on aquatic ecosystems.
Research progress in ecotoxicology of climate change coupled with marine pollutions
This review examined how rising ocean temperatures and acidification from climate change interact with marine pollutants including microplastics, finding that combined stressors often produce worse effects than either alone. The research underscores that plastic pollution cannot be addressed in isolation from the broader context of global climate change.
Microplastics increases the heat tolerance of Daphnia magna under global warming via hormetic effects
Daphnia magna exposed to microplastics under fluctuating daily temperature conditions (simulating global warming) showed increased heat tolerance compared to control animals, suggesting a complex interaction between thermal stress and microplastic exposure. The study cautions that standard single-temperature risk assessments may underestimate or mischaracterize microplastic effects under climate change.
Responses of freshwater organisms to multiple stressors in a climate change scenario: a review on small-scale experiments
This review summarizes 156 publications on how freshwater organisms respond to combinations of temperature and salinity changes along with other stressors including metals, pesticides, and emerging contaminants like microplastics in controlled small-scale experiments. It finds that combined stressor effects are often non-additive and species-specific, with significant knowledge gaps remaining for microplastic interactions under climate change scenarios.
Polystyrene Plastic Particles Result in Adverse Outcomes for Hyalella azteca When Exposed at Elevated Temperatures
Experiments with the amphipod Hyalella azteca showed that polystyrene micro- and nanoplastics caused greater adverse effects at elevated water temperatures, suggesting that climate warming could amplify the ecotoxicological impacts of plastic pollution.
Interactive effects between water temperature, microparticle compositions, and fiber types on the marine keystone species Americamysis bahia
Scientists studied how rising water temperatures interact with different types of microparticles and fibers to affect mysid shrimp, a key species in marine food webs. Researchers found that the combination of warmer water and microplastic exposure produced more severe effects than either stressor alone. The study suggests that climate change could amplify the harmful impact of microplastic pollution on important marine organisms.
Micro- and nanoplastics effects in a multiple stressed marine environment
Researchers examined how micro- and nanoplastics interact with other environmental stressors in marine settings, finding that realistic multi-stressor scenarios can amplify or modify plastic toxicity in ways single-exposure studies miss.
Microplastics at an environmentally relevant dose enhance mercury toxicity in a marine copepod under multigenerational exposure: Multi-omics perspective
Researchers exposed tiny marine organisms called copepods to microplastics and mercury together across three generations at levels found in the environment. While microplastics alone had little effect, they made mercury much more toxic by increasing how much mercury built up in the organisms' bodies. This study shows that microplastics can act as carriers that amplify the harmful effects of other environmental pollutants, with the damage worsening over generations.
Each temperature degree counts: warming enhances polystyrene nanoplastic toxicity via metabolic disruption in a marine cellular model
This study examined how elevated water temperatures — simulating marine heatwaves — amplify the toxicity of polystyrene nanoplastics in marine cells, finding that warming enhanced metabolic disruption caused by nanoplastics. The results suggest climate change and plastic pollution interact synergistically to harm marine organisms.
The effects of microplastic ingestion and environmental warming on camouflage and growth in common shore crabs
Researchers found that shore crabs exposed to both microplastics and warming water showed impaired camouflage ability and reduced growth compared to crabs exposed to either stressor alone. The combined effects of microplastic pollution and climate change may be more harmful to marine life than either threat in isolation.
Changes in population fitness and gene co-expression networks reveal the boosted impact of toxic cyanobacteria on Daphnia magna through microplastic exposure
Researchers found that exposing the water flea Daphnia magna to both toxic cyanobacteria and microplastics together produced worse health effects than either stressor alone, reducing population fitness and altering gene expression patterns. The study suggests that as plastic pollution and harmful algal blooms increasingly overlap in lakes and rivers, aquatic organisms may face compounding threats that are greater than the sum of their parts.
Biological Responses to Climate Change and Nanoplastics Are Altered in Concert: Full-Factor Screening Reveals Effects of Multiple Stressors on Primary Producers
Using high-throughput screening of a freshwater green alga, researchers tested how nanoplastics interact with multiple climate change stressors (temperature, CO2, pH, UV), finding that nanoplastics combined with warming or UV caused greater harm than either alone, and that climate change will likely amplify nanoplastic toxicity.