Observed and expected heterozygosity, and allelic richness (Ho, He, and Ar, respectively) were significantly higher in 1998 than in 2020, while the fixation index (Fst) was significantly higher in 2020 than in 1998. The inbreeding coefficient and the effective population size (Fis and Ne, respectively) did not differ between 1998 and 2020. Leer más.
Toad abundance declined in all decades since 1973 in Switzerland (33% abundance reduction) and since 1985 in Great Britain (41% reduction), but there were significant regional recoveries in Britain since 2013. Leer más.
As expected, body size increased nonlinearly with both age estimate methods. However, Spearman’s correlation and model 2 linear regression suggest limited precision and bias when transposing results between different methods. Overall, the cephalic rings method faced practical challenges for lacertid species in the genus Podarcis. Leer.más.
The results confirm the ecological importance of these karstic springs habitats, which support high biodiversity, species interactions, and serve as key points for studying the adaptive responses of Proteus anguinus and other subterranean species. Leer más.
Drawing on recent literature on ectotherm thermal tolerance, we argue here that thermotolerant species generally inhabit regions with historically high thermal variability, where intense climatic shifts are often projected. Leer más.
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