Article
Engineering, Environmental
Katharine M. Fremlin, John E. Elliott, Robert J. Letcher, Tom Harner, Frank A. P. C. Gobas
Summary: This study investigated the trophic magnification of perfluoroalkylsubstances (PFAS) in a terrestrial food web by measuring concentrations in biota, air, and soil samples. The results showed that some PFAS exhibited biomagnification while others were diluted in the food web.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Katharine M. Fremlin, John E. Elliott, Pamela A. Martin, Tom Harner, Amandeep Saini, Frank A. P. C. Gobas
Summary: The study explored trophic magnification of cyclic volatile methyl siloxanes in a terrestrial food web in a mixed urban-agricultural landscape. While the trophic magnification factors derived from lipid normalized concentrations for D5 and D6 were similar to those in aquatic systems, the ones based on a fugacity basis were greater due to temperature-induced thermodynamic biomagnification when endothermic organisms consume poikilothermic organisms.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Chang-Gui Pan, Shao-Ke Xiao, Ke-Fu Yu, Qi Wu, Ying-Hui Wang
Summary: The study investigated the occurrence, bioaccumulation, and trophic magnification of legacy and alternative PFAS in subtropical marine food webs in the Beibu Gulf, South China. The results showed that most PFAS exhibited low bioaccumulation levels, with only a few substances showing trophic magnification. Overall, the risk of PFAS exposure through consumption of marine organisms was found to be relatively low.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Jun-Tae Kim, Yun-Jeong Choi, Mandana Barghi, Jeong-Hoon Kim, Jin-Woo Jung, Kitae Kim, Jung-Ho Kang, Gerhard Lammel, Yoon-Seok Chang
Summary: The study investigates the occurrence and bioaccumulation of new and legacy POPs in an ecosystem on King George Island, Antarctica. Results show that both new and legacy POPs were widely detected in animal samples, with some being magnified through the food web and others being diluted through the trophic levels.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Behavioral Sciences
Eamonn I. F. Wooster, Daniel Ramp, Erick J. Lundgren, Adam J. O'Neill, Arian D. Wallach
Summary: In Australia, dingoes drive trophic cascades by suppressing red fox populations. In socially stable conditions, prey may develop knowledge of their predators, facilitating avoidance and reducing fear.
BEHAVIORAL ECOLOGY
(2021)
Article
Environmental Sciences
Gabriel Munoz, Laurie Mercier, Sung Vo Duy, Jinxia Liu, Sebastien Sauve, Magali Houde
Summary: The research investigates the presence of various PFAS in the food web of the St. Lawrence River and discovers emerging PFAS as well. It also finds differences in contamination profiles of PFAS among different biotic samples and identifies some PFAS as highly bioaccumulative and biomagnifying.
ENVIRONMENTAL POLLUTION
(2022)
Article
Engineering, Environmental
Qi Wang, Yuefei Ruan, Linjie Jin, Lily S. R. Tao, Han Lai, Guifeng Li, Leo W. Y. Yeung, Kenneth M. Y. Leung, Paul K. S. Lam
Summary: The ban/elimination of legacy PFASs has resulted in an increase in the production and use of emerging PFASs. However, the trophodynamics of these emerging PFASs in aquatic food webs are still not well understood. This study investigated the biomagnification potential of legacy and emerging PFASs in seawaters and marine organisms from the South China Sea. Significant trophic magnification was observed for 22 PFASs, including the first reported trophic magnification factors for certain PFASs. The presence of PFASs in seafood from the South China Sea suggests a potential human health risk.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Biodiversity Conservation
S. M. McCluskey, K. R. Sprogis, J. M. London, L. Bejder, N. R. Loneragan
Summary: The study provides insights into the foraging habits of Indo-Pacific bottlenose dolphins in south-western Australia, showing selective feeding behavior with a preference for Gobiidae species. Stable isotope analyses revealed niche differentiation between coastal and inshore dolphins, with coastal dolphins having a more pelagic diet and inshore dolphins feeding on enriched prey typical of estuarine environments.
GLOBAL ECOLOGY AND CONSERVATION
(2021)
Article
Biodiversity Conservation
Rien E. van Wijk, Yahkat Barshep, Keith A. Hobson
Summary: After studying the feather isotopic values of two bird communities in Nigeria, it was found that there was significant isotopic overlap among different dietary guilds, with no clear enrichment pattern of H-2 with trophic position.
Article
Ecology
Benjamin Marsaly, Daniel Daugherty, Oliver N. Shipley, Carey Gelpi, Norman Boyd, Jonathan Davis, Mark Fisher, Philip Matich
Summary: Top predators, such as bull sharks and alligator gars, play crucial roles in their ecosystems. Our study on their trophic ecology and plasticity in two estuaries of the northwestern Gulf of Mexico showed their ability to adjust their behaviors in response to changes in prey availability and potential competition, suggesting they may be somewhat resilient to climate change and anthropogenic disturbances. This highlights the importance of combining different approaches to refine our understanding of the ecological roles of top predators.
MARINE ECOLOGY PROGRESS SERIES
(2023)
Article
Limnology
Benjamin E. Martin, Jake R. Walsh, M. Jake Vander Zanden
Summary: This study presents a long-term example of successive ecological regime shifts in an undeveloped oligotrophic lake, starting with the rise of an apex predator and the invasion of a mid-trophic level species.
LIMNOLOGY AND OCEANOGRAPHY
(2022)
Article
Environmental Sciences
Lawrence P. Burkhard, Tylor J. Lahren, Kaila B. Hanson, Alex J. Kasparek, David R. Mount
Summary: Rainbow trout was exposed to a mixture of non-ionic organic chemicals through the diet, and the study found that highly hydrophobic chemicals were less bioavailable and bioaccumulative compared to other chemicals.
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2023)
Article
Ecology
Oriol Lapiedra, Nina Morales, Louie H. Yang, Dario Fernandez-Bellon, Sozos N. Michaelides, Sean T. Giery, Jonah Piovia-Scott, Thomas W. Schoener, Jason J. Kolbe, Jonathan B. Losos
Summary: Foraging decisions have a significant impact on the structure of food webs, as a behavioral shift in a single species can potentially modify resource-flow dynamics of entire ecosystems. Through a field experiment, this study found that semi-arboreal brown anole lizards drastically increased their perch height and reduced consumption of marine-derived food resources in the presence of predatory ground-dwelling curly-tailed lizards. This shift in foraging niche altered the dynamics of resource flow between the oceanic and terrestrial ecosystems, and persisted in the diets of the first-generation offspring. Additionally, female lizards with more risk-taking behaviors consumed more marine prey when predators were present on the islands.
Article
Multidisciplinary Sciences
Geoff Castle, Deane Smith, Lee R. Allen, Benjamin L. Allen
Summary: Experimental removal and suppression of Australian dingoes did not result in mesopredator release effects, as the relative abundances of mesopredators remained stable and low. This adds to previous evidence indicating a widespread absence of reliable evidence for top-predator removal cascading effects in terrestrial ecosystems. The lack of negative relationships between predators also suggests that negative interactions may not always scale-up to population level effects.
SCIENTIFIC REPORTS
(2021)
Article
Environmental Sciences
Kate M. Fremlin, Jennie R. McLaren, Lisa DeSandoli, Roy Turkington
ARCTIC ANTARCTIC AND ALPINE RESEARCH
(2011)
Article
Environmental Sciences
Heidi A. Currier, Kate M. Fremlin, John E. Elliott, Ken G. Drouillard, Tony D. Williams
Article
Engineering, Environmental
Katharine M. Fremlin, John E. Elliott, Pamela A. Martin, Tom Harner, Amandeep Saini, Frank A. P. C. Gobas
Summary: The study explored trophic magnification of cyclic volatile methyl siloxanes in a terrestrial food web in a mixed urban-agricultural landscape. While the trophic magnification factors derived from lipid normalized concentrations for D5 and D6 were similar to those in aquatic systems, the ones based on a fugacity basis were greater due to temperature-induced thermodynamic biomagnification when endothermic organisms consume poikilothermic organisms.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Environmental Sciences
Robert Kesic, John E. Elliott, Kate M. Fremlin, Lewis Gauthier, Kenneth G. Drouillard, Christine A. Bishop
Summary: The study found that DDT contaminants are still present at elevated levels in Canadian fruit orchards, with signs of slow degradation of DDT and ongoing biomagnification of p,p'-DDE in the American robin food chain.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Review
Environmental Sciences
Christy Morrissey, Clementine Fritsch, Katharine Fremlin, William Adams, Katrine Borga, Markus Brinkmann, Igor Eulaers, Frank Gobas, Dwayne R. J. Moore, Nico van den Brink, Ted Wickwire
Summary: The exposure assessment component of a Wildlife Ecological Risk Assessment aims to estimate exposure to a chemical or environmental contaminant in wildlife, but there is often high uncertainty and error due to limited data. Both USEPA and EFSA require exposure assessments to include estimates of the quantity, frequency, and duration of exposure while considering all relevant factors. In this review, we propose a new framework for constructing an exposure matrix to better inform and communicate the complexity and realism in exposure assessments for wildlife.
INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT
(2023)
Review
Environmental Sciences
Frank A. P. C. Gobas, Yung-Shan Lee, Katharine M. Fremlin, Stephanie C. Stelmachuk, Aaron D. Redman
Summary: This study investigates and reviews methods for assessing the bioaccumulation potential of hydrocarbons and related organic substances in terrestrial food chains. The study concludes that biomagnification factor (BMF) and trophic magnification factor (TMF) are suitable metrics for identifying bioaccumulative substances. Various methods can be used to determine the potential for biomagnification, including physical-chemical properties, biotransformation assays, and pharmacokinetic and dietary bioaccumulation tests.
INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT
(2023)
Article
Engineering, Environmental
Katharine M. Fremlin, John E. Elliott, Robert J. Letcher, Tom Harner, Frank A. P. C. Gobas
Summary: This study investigated the trophic magnification of perfluoroalkylsubstances (PFAS) in a terrestrial food web by measuring concentrations in biota, air, and soil samples. The results showed that some PFAS exhibited biomagnification while others were diluted in the food web.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
