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Long-term assessment of the population trends and body condition of Carabus variolosus nodulosus in SloveniaEva Vera Jiménez, 2024, magistrsko delo
Povzetek: To gain insight into the current population trends of Carabus variolosus nodulosus in Slovenia and assess the body condition of individuals, data from 17-year monitoring program were analyzed across five geographically distinct regions. The number of beetles captured per trap was recorded, and measurements of live specimens were taken to calculate both national and regional population trends, along with a body condition index. Additionally, linear mixed-effects models were used to examine the potential impact of sex and disturbances on body condition, and to explore the correlation between body condition and population density. The results indicated an overall stable population trend with marked regional differences. No correlation was found between body condition and population density or disturbances, though significant differences in body condition between sexes were observed. This study underscores the importance of long-term and multi-scale monitoring to detect stress factors and potential local extinctions that might otherwise remain undetected and proposes sampling efforts for future monitoring schemes for reliable trend assessments of the species.
Ključne besede: scaled mass index, long-term monitoring, ground beetle, body condition, zoology, master thesis
Objavljeno v DiRROS: 10.10.2024; Ogledov: 455; Prenosov: 133
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