Genomic and Phenotypic Data for Eurasian Wren Populations in the British Isles

A 2026 dataset by Michał Jezierski examines four island subspecies of the Eurasian Wren in Scotland. It includes population genomic, phylogenetic, and phenotypic trait data to study parallel evolution and island syndromes. The dataset is 119.4 MB and is shared under a CC-BY-4.0 license.

Use Cases

• Analyzing patterns of genomic differentiation based on population-specific and shared genomic windows.
• Studying phenotypic convergence and island syndromes, such as gigantism, across isolated populations.
• Investigating the relationship between genetic diversity, drift, and parallel phenotypic evolution.
• Examining potential speciation signals based on low gene flow and reproductive boundaries like distinct songs.

Strengths

• Includes data for four distinct island subspecies and a mainland reference population.
• Identifies that two subspecies are within the 25% most extreme cases of avian island gigantism worldwide.
• Reports that 3.6% of the top 1% of differentiated genomic windows are shared between two subspecies.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the specific island populations studied.

Provenance

Source

Michał Jezierski via figshare

Collection Method

Likely contains genomic sequencing and phenotypic measurement data from field studies.

Freshness

Last updated 2026-05-17 15:14:47

Geography

British Isles, specifically four Scottish islands (including St Kilda and Shetland) and mainland Great Britain.