Phenotypic Diversity and Landscape Genetics ofEristalis tenaxin a Spatially Heterogeneous Environment, Durmitor Mountain (Montenegro)

A study on the hoverfly Eristalis tenax in Durmitor National Park, Montenegro, reveals that landscape heterogeneity does not significantly impact its population structure or gene flow. Analysis of allele frequencies at allozyme loci, wing traits (size and shape), and abdominal color patterns across eight diverse locations—ranging from deciduous forests to alpine meadows—showed weak genetic differentiation and phenotypic similarity among samples. Bayesian clustering and FST estimates confirmed a lack of population structure, suggesting that E. tenax thrives in a more or less continuous habitat due to its strong dispersal capacity. These findings imply that the species may facilitate gene flow among isolated plant populations across the region, offering insights into its role in maintaining biodiversity.

Francuski, L., Ludoški, J., & Milankov, V. (2013). Phenotypic Diversity and Landscape Genetics ofEristalis tenaxin a Spatially Heterogeneous Environment, Durmitor Mountain (Montenegro). Annales Zoologici Fennici, 50(5), 262–278. https://doi.org/10.5735/085.050.0502