For decades, it has been assumed that introgressive hybridization between introduced rainbow trout and native cutthroat trout in western North America will lead to genomic extinction of the latter. A broad-scale re-examination of their interaction indicates that ecological differences between these species and demographic processes are dictating the location and extent of their hybrid zones, and that runaway introgression between these taxa is unlikely.
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http://dx.doi.org/10.1111/gcb.13828 | DOI Listing |
Proc Biol Sci
January 2025
Department of Biological Sciences, Purdue University, West Lafayette, IN 47907-2054, USA.
Aquatic ecosystems are highly dynamic environments vulnerable to natural and anthropogenic disturbances. High-economic-value fisheries are one of many ecosystem services affected by these disturbances, and it is critical to accurately characterize the genetic diversity and effective population sizes of valuable fish stocks through time. We used genome-wide data to reconstruct the demographic histories of economically important yellow perch () populations.
View Article and Find Full Text PDFAnn Bot
January 2025
Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland.
Background And Aims: The cosmopolitan Botrychium lunaria group belong to the most species rich genus of the family Ophioglossaceae and was considered to consist of two species until molecular studies in North America and northern Europe led to the recognition of multiple new taxa. Recently, additional genetic lineages were found scattered in Europe, emphasizing our poor understanding of the global diversity of the B. lunaria group, while the processes involved in the diversification of the group remain unexplored.
View Article and Find Full Text PDFAnimals (Basel)
December 2024
School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100107, China.
The forest musk deer () and Siberian roe deer () are browsers with a broad sympatric distribution in North and Southwest China. However, little is known about their spatial utilization of microhabitats and habitats. This study, conducted on Huanglong Mountain in China, analyzed the defecation site distribution, indicating preferences of forest musk deer and Siberian roe deer for their habitat demands.
View Article and Find Full Text PDFHeredity (Edinb)
January 2025
Department of Biological Sciences, University of South Carolina, Columbia, SC, USA.
Maternal effects have been shown to play influential roles in many evolutionary and ecological processes. However, understanding how environmental stimuli induce within-generation responses that transverse across generations remains elusive, particularly when attempting to segregate confounding effects from offspring genotypes. This review synthesizes literature regarding resource- and predation-driven maternal effects in the model system Daphnia, detailing how the maternal generation responds to the environmental stimuli and the maternal effects seen in the offspring generation(s).
View Article and Find Full Text PDFCien Saude Colet
December 2024
Programa de Pós-Graduação em Epidemiologia e Métodos Quantitativos em Saúde, Fiocruz. Rio de Janeiro RJ Brasil.
The COVID-19 pandemic has unevenly affected regions, countries, and ethnic-racial segments. Socioenvironmental factors were associated with worse disease evolution, with a greater likelihood of mortality in vulnerable people. This study aimed to investigate the association between the proportion of vulnerable populations (Black, brown, and Indigenous people) and mortality from COVID-19 in Brazil from March 2020 to February 2021.
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