ArticlePloS one2014
High risks of losing genetic diversity in an endemic Mauritian gecko: implications for conservation.
Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 17 citations in OpenAlex.
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- Population genomics reveals deep diversification in Malayan pangolins.Molecular biology and evolution · 2026Article
- Unraveling the Genetic Diversity of Asian Elephants (Ecology and evolution · 2025Article
- Population genomic landscapes and insights for conservation of the critically endangered island-endemic Chinese pangolin in Taiwan.Science China. Life sciences · 2025Article
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- Large-scale genome sequencing of giant pandas improves the understanding of population structure and future conservation initiatives.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Population genomics reveals how 5 ka of human occupancy led the Lima leaf-toed gecko (Phyllodactylus sentosus) to the brink of extinction.Scientific reports · 2023Article
- Development and characterization of twenty microsatellite markers for Phelsuma inexpectata (Squamata: Gekkonidae), a critically endangered gecko endemic to Reunion Island.Molecular biology reports · 2023Article
- Complex problems need detailed solutions: Harnessing multiple data types to inform genetic management in the wild.Evolutionary applications · 2019Article
- Factors influencing growth hormone levels of Bali cattle in Bali, Nusa Penida, and Sumbawa Islands, Indonesia.Veterinary world · 2017Article
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Authors and funding
8 authors at 4 institutions in 3 countries.
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No grant is acknowledged in the PubMed record.
Abstract
Genetic structure can be a consequence of recent population fragmentation and isolation, or a remnant of historical localised adaptation. This poses a challenge for conservationists since misinterpreting patterns of genetic structure may lead to inappropriate management. Of 17 species of reptile originally found in Mauritius, only five survive on the main island. One of these, Phelsuma guimbeaui (lowland forest day gecko), is now restricted to 30 small isolated subpopulations following severe forest fragmentation and isolation due to human colonisation. We used 20 microsatellites in ten subpopulations and two mitochondrial DNA (mtDNA) markers in 13 subpopulations to: (i) assess genetic diversity, population structure and genetic differentiation of subpopulations; (ii) estimate effective population sizes and migration rates of subpopulations; and (iii) examine the phylogenetic relationships of haplotypes found in different subpopulations. Microsatellite data revealed significant population structure with high levels of genetic diversity and isolation by distance, substantial genetic differentiation and no migration between most subpopulations. MtDNA, however, showed no evidence of population structure, indicating that there was once a genetically panmictic population. Effective population sizes of ten subpopulations, based on microsatellite markers, were small, ranging from 44 to 167. Simulations suggested that the chance of survival and allelic diversity of some subpopulations will decrease dramatically over the next 50 years if no migration occurs. Our DNA-based evidence reveals an urgent need for a management plan for the conservation of P. guimbeaui. We identified 18 threatened and 12 viable subpopulations and discuss a range of management options that include translocation of threatened subpopulations to retain maximum allelic diversity, and habitat restoration and assisted migration to decrease genetic erosion and inbreeding for the viable subpopulations.
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