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Survival of Eurasian lynx in the human-dominated landscape of Europe.
Conserv Biol
January 2025
Chair of Wildlife Ecology and Management, Albert Ludwigs University of Freiburg, Freiburg, Germany.
Survival and cause-specific mortality rates are vital for evidence-based population forecasting and conservation, particularly for large carnivores, whose populations are often vulnerable to human-caused mortalities. It is therefore important to know the relationship between anthropogenic and natural mortality causes to evaluate whether they are additive or compensatory. Further, the relation between survival and environmental covariates could reveal whether specific landscape characteristics influence demographic performance.
View Article and Find Full Text PDFInbreeding depression poses a severe threat to small populations, leading to the fixation of deleterious mutations and decreased survival probability. While the establishment of natural gene flow between populations is an ideal long-term solution, its practical implementation is often challenging. Reinforcement of populations by translocating individuals from larger populations is a viable strategy for reducing inbreeding, increasing genetic diversity and potentially saving populations from extinction.
View Article and Find Full Text PDFEvidence of an emerging triple-reassortant H3N3 avian influenza virus in China.
BMC Genomics
December 2024
The Key Lab of Animal Disease and Public Health / Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, Henan University of Science and Technology, Luoyang, Henan, 471023, China.
The H3 subtype of avian influenza virus (AIV) stands out as one of the most prevalent subtypes, posing a significant threat to public health. In this study, a novel triple-reassortant H3N3 AIV designated A/chicken/China/16/2023 (H3N3), was isolated from a sick chicken in northern China. The complete genome of the isolate was determined using next-generation sequencing, and the AIV-like particles were confirmed via transmission electron microscopy.
View Article and Find Full Text PDFRecurring incursions and dissemination of novel Eurasian-origin H5Nx avian influenza viruses in Atlantic Canada.
Virus Evol
December 2024
Department of Biology, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada.
Wild birds are important hosts of influenza A viruses (IAVs) and play an important role in their ecology. The emergence of the A/goose/Guangdong/1/1996 H5N1 (Gs/GD) lineage marked a shift in IAV ecology, leading to recurrent outbreaks and mortality in wild birds from 2002 onwards. This lineage has evolved and diversified over time, with a recent important derivative being the 2.
View Article and Find Full Text PDFMigration routes and adult survival of the critically endangered yellow-breasted bunting Emberiza aureola.
Sci Rep
December 2024
Institute of Landscape Ecology, University of Münster, Münster, Germany.
Article Synopsis
- Migratory animals depend on various sites during their annual cycles, and changes at these locations can significantly impact their populations, especially long-distance migrants like the Yellow-breasted Bunting.
- Reduced adult survival due to persecution at non-breeding sites is a major factor contributing to the decline of this species, with ongoing extinction particularly noted in western regions of its range.
- Research revealed moderate survival in eastern populations, no returning birds from the west, and identified key migration corridors and stopover sites in eastern China, highlighting the need for targeted conservation efforts and increased monitoring of survival and breeding in both populations.
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