Meta-analysis of Antarctic phylogeography reveals strong sampling bias and critical knowledge gaps ...
Much of Antarctica’s highly endemic terrestrial biodiversity is found in small ice-free patches. Substantial genetic differentiation has been detected among populations across spatial scales. Sampling is, however, often restricted to commonly-accessed sites, and we therefore lack a comprehensive und...
| Main Authors: | , , , , |
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| Format: | Dataset |
| Language: | English |
| Published: |
Dryad
2022
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.5061/dryad.kprr4xh7p https://datadryad.org/stash/dataset/doi:10.5061/dryad.kprr4xh7p |
| Summary: | Much of Antarctica’s highly endemic terrestrial biodiversity is found in small ice-free patches. Substantial genetic differentiation has been detected among populations across spatial scales. Sampling is, however, often restricted to commonly-accessed sites, and we therefore lack a comprehensive understanding of broad-scale biogeographic patterns, which could impede forecasts of the nature and impacts of future change. Here, we present a synthesis of published genetic studies across terrestrial Antarctica and the broader Antarctic region, aiming to identify current biogeographic patterns, environmental drivers of diversity, and future research priorities. A database of all published genetic research from terrestrial fauna and flora (excl. microbes) across the Antarctic region was constructed. This database was then filtered to focus on the most well-represented taxa and markers (mitochondrial COI for fauna, and nuclear ITS for flora). The final dataset comprised 7222 records, spanning 153 studies of 335 ... : All sequence data were downloaded from GenBank, and processed in R. Details please refer to manuscript. ... |
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