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Population fluctuations are widespread across the animal kingdom, especially in the order Rodentia, which includes many globally important reservoir species for zoonotic pathogens. The implications of these fluctuations for zoonotic spillover remain poorly understood. Here, we report a global empirical analysis of data describing the linkages between habitat use, population fluctuations and zoonotic reservoir status in rodents. Our quantitative synthesis is based on data collated from papers and databases. We show that the magnitude of population fluctuations combined with species' synanthropy and degree of human exploitation together distinguish most rodent reservoirs at a global scale, a result that was consistent across all pathogen types and pathogen transmission modes. Our spatial analyses identified hotspots of high transmission risk, including regions where reservoir species dominate the rodent community. Beyond rodents, these generalities inform our understanding of how natural and anthropogenic factors interact to increase the risk of zoonotic spillover in a rapidly changing world.
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http://dx.doi.org/10.1038/s41467-022-35273-7 | DOI Listing |
Mol Ecol
September 2025
Museum of Vertebrate Zoology, University of California Berkeley, Berkeley, California, USA.
Many North American game animals experienced severe population declines during the 19th century due to market hunting. However, estimates of the timing and magnitude of these declines often rely on anecdotal evidence, which makes it difficult to understand the lasting impacts of hunting pressures versus climate or landscape changes on the genetic diversity of contemporary populations. Historical reports suggest the California quail (Callipepla californica) suffered more significant hunting pressure in the late 19th century relative to either Gambel's (Callipepla gambelii) or mountain quail (Oreortyx pictus).
View Article and Find Full Text PDFJ Therm Biol
September 2025
School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand.
Extreme climatic events, such as marine heatwaves (MHW) and increased suspended sediment concentration (SSC), are increasing in frequency and intensity, resulting in sudden changes to coastal environments, especially intertidal zones. Intertidal animals experience conditions that substantially fluctuate over temporal and spatial scales and therefore require the ability to physiologically tolerate these fluctuations. Since multiple stressors often co-occur and natural populations tend to respond to local environmental fluctuations, we aimed to investigate individual and combined effects of MHW and increased suspended sedimentation in Forsterygion lapillum from two neighbouring coastal areas with distinct water temperatures and wave current regimes by assessing fish oxygen consumption rate, mortality and weight loss.
View Article and Find Full Text PDFJ Electrocardiol
August 2025
Computational Physics Laboratory, Tampere University, P.O. Box 600, FI-33014 Tampere, Finland. Electronic address:
The QT interval is a key indicator in assessing arrhythmia risk, evaluating drug safety, and supporting clinical diagnosis in cardiology. The QT interval is significantly influenced by heart rate so it must be accurately corrected to ensure reliable clinical interpretation. Conventional correction formulas, such as Bazett's formula, are widely utilized but often criticized for inaccuracies, either under- or overcorrecting QT intervals in different physiological conditions.
View Article and Find Full Text PDFSleep Med
August 2025
Department of Radiology Imaging Center, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, PR China. Electronic address:
Objective: This multicenter study aimed to investigate resting-state brain functional alterations in patients with type 2 diabetes mellitus (T2DM) comorbid with obstructive sleep apnea (OSA), and to elucidate the underlying neural mechanisms.
Methods: A total of 139 participants were enrolled from two centers, including 48 healthy controls (HCs), 46 T2DM patients, and 45 T2DM with OSA patients. Resting-state functional magnetic resonance imaging (rs-fMRI) was used to assess brain function using degree centrality (DC), amplitude of low-frequency fluctuation (ALFF), and seed-based functional connectivity (FC).
Sci Total Environ
September 2025
Department of Biology, The Pennsylvania State University, University Park, PA 16802, USA; Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16801, USA. Electronic address:
Wastewater surveillance is increasingly an effective public health tool for responding to epidemics and preparing for annual cycles of respiratory illnesses. We measured genetic markers from Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), influenza A virus (IAV) and influenza B virus (IBV) in untreated wastewater of a university campus and its local residential community over a four-year period using digital Polymerase Chain Reaction (PCR) methods. These data were then analyzed and compared to clinical case data reported to the state by zip code.
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