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Microbes inhabit virtually all river ecosystems, influencing energy flow and playing a key role in global sustainability and climate change. Yet, there is uncertainty about how various taxonomic groups respond to large-scale factors in river networks. We analysed microbial community richness and composition across six European Atlantic catchments using environmental DNA sequencing. Our findings reveal different drivers for diversity and composition: land use is pivotal for eukaryotes, while climate and geology are crucial for prokaryotes. A strong regional influence shapes these communities, with warmer, drier regions (Portugal and France) differing from cooler, wetter ones (Northern Spain, Ireland and the United Kingdom). These patterns suggest potential indicators for global change, such as taxa resistant to temperature increases and water scarcity, or those sensitive to land use changes.
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http://dx.doi.org/10.1111/1758-2229.70065 | DOI Listing |
Cancer Causes Control
May 2025
Department of Environmental Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Purpose: We aimed to identify geographical areas of vulnerability, namely co-occurring heightened cancer prevalence and exposure to natural hazards.
Methods: Cancer prevalence data for four major cancers (lung, breast, colorectal, and prostate) from the Centers for Medicare and Medicaid Services were used along with National Risk Index (NRI) for 18 hazards, including hurricane and wildfire, from the Federal Emergency Management Agency. We examined county-level spatial correlations between cancer prevalence and NRI values using Lee's L statistics.
Neuromodulation
May 2025
Department of Neurosurgery, University of Arizona College of Medicine - Tucson, Tucson, AZ, USA. Electronic address:
Introduction: Racial and ethnic disparities in utilization of functional neurosurgical procedures have been extensively documented. However, few studies have focused on the differences between Hispanic and non-Hispanic White populations in regions with high representation of both groups. Given the large Hispanic population within our hospital's catchment area, we aimed to compare the utilization of functional neurosurgery between the Hispanic and White populations in our practice.
View Article and Find Full Text PDFRegional-scale groundwater contamination estimation is crucial for sustainable water management. The primary obstacles in evaluating groundwater include limited data availability, small sample sizes, and difficulties in linking concentration levels to land use patterns. Linear regression identifies the relationship between measured concentrations and both natural and human-influenced factors.
View Article and Find Full Text PDFSci Total Environ
February 2025
Department of Forest Science, College of Agriculture, University of São Paulo (ESALQ), Av. Padua Dias, 11, Caixa Postal 9, 13418-900 Piracicaba, SP, Brazil.
Forest restoration has been a common practice to safeguard water quality and stream health but it is unclear to which extent and pace forest restoration recovers stream ecosystem structure and functions. Also, stream health might be affected by the forest restoration type and the quality of the interventions. Here, we sought to evaluate the recovery of stream habitat and water quality through forest restoration in catchments dominated by pasturelands, and explored the relationship between landscape structure and stream ecosystem recovery.
View Article and Find Full Text PDFEnviron Pollut
February 2025
Faculdade de Ciências Farmacêuticas, Universidade Estadual de Campinas (UNICAMP). Campinas, Brazil.
The expansion of urban settlements over native environments may expose biodiversity to a host of emerging contaminants, with unintended ecological effects. This study evaluated patterns of contamination of streamwater by antidepressants in the Upper Tietê River Basin, a watershed of high social, economic and environmental relevance for comprising both the largest urban settlement in South America (the Metropolitan Region of São Paulo) and remnants of a globally important biodiversity hotspot (the Atlantic Rainforest). We sampled 53 third-order streams draining catchments regularly distributed across a gradient in urban cover.
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