Percentage of aneuploid cells and that of cell with chromosome aberrations in Microtus oeconomus Pall. living in areas with the enhanced radiation background (the dose of external radiation is 50 times and that of internal irradiation of bone marrow by incorporated 226Ra 10 times higher than the controls) exceeds significantly (p less than 0.05) the control values. It is concluded that mutations occur in the experimental animals more frequently than in the controls.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Sexual Body Size Dimorphism in Small Mammals: A Case Study from Lithuania.
Biology (Basel)
December 2024
Nature Research Centre, Akademijos 2, 08412 Vilnius, Lithuania.
We assessed the sexual size dimorphism (SSD), analyzing standard morphometric traits in juveniles, subadults, and adults, of 14 species of voles, mice, and shrews in Lithuania on the basis of long-term surveys, updating information published 35 years ago and in the context of data from other countries. ANOVA, -tests, and a 5% threshold were used in the analyses. Male-biased SSD was observed in and , which was subject to Rensch's rule, and in three other meadow vole species, with the strongest expression in adult individuals.
View Article and Find Full Text PDFGenetic diversity of Bartonella species in small mammals in the Qinghai Menyuan section of Qilian Mountain National Park, China.
Sci Rep
October 2024
Department of Basic Medical Sciences, Changzhi Medical College, Changzhi, 046000, China.
Article Synopsis
- Bartonella are emerging pathogens that can infect many mammals, and this study focused on their prevalence in small mammals in Qilian Mountain National Park, China.
- A total of 52 rodents were tested, with a 69.23% infection rate, and the study identified two species of Bartonella: B. grahamii and B. heixiaziensis, with B. grahamii being the most common.
- The research showed that B. grahamii has high genetic diversity and potential implications for human health, highlighting the need for control measures.
Effects of DNA Methylation of HPA-Axis Genes of F1 Juvenile Induced by Maternal Density Stress on Behavior and Immune Traits in Root Voles ()-A Field Experiment.
Animals (Basel)
August 2024
College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, China.
The literature shows that maternal stress can influence behavior and immune function in F1. Yet, most studies on these are from the laboratory, and replicated studies on the mechanisms by which maternal stress drives individual characteristics are still not fully understood in wild animals. We manipulated high- and low-density parental population density using large-scale field enclosures and examined behavior and immune traits.
View Article and Find Full Text PDFChanges in the structural and functional state of the thyroid gland of small mammals when exposed to low-intensity chronic radiation.
Environ Sci Pollut Res Int
May 2024
Institute of Biology Federal Research Centre Komi Science Centre of the Ural Branch of the Russian Academy of Sciences, Kommunisticheskaya 28, Syktyvkar, Russian Federation, 167982.
The study gives a morphofunctional assessment of the state of the thyroid gland of tundra voles (Microtus oeconomus Pall.) in conditions of an increased radiation background (the Ukhta district of the Komi Republic (Russia) and the 30-km zone of the Chernobyl NPP), as well as in an experiment with chronic external gamma irradiation in the low dose range. The work summarizes the experience of more than 35 years of field and laboratory research.
View Article and Find Full Text PDFEnergy allocation is revealed while behavioural performance persists after fire disturbance.
J Exp Biol
March 2024
Mammal Research Institute, Polish Academy of Sciences, 17-230 Białowieża, Poland.
Metabolic physiology and animal behaviour are often considered to be linked, positively or negatively, according to either the performance or allocation models. Performance seems to predominate over allocation in natural systems, but the constraining environmental context may reveal allocation limitations to energetically expensive behaviours. Habitat disturbance, such as the large-scale fire that burnt wetlands of Biebrza National Park (NE Poland), degrades natural ecosystems.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!