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Estimated six per cent loss of genetic variation in wild populations since the industrial revolution
Open accessAbstract
Genetic variation is fundamental to population fitness and adaptation to environmental change. Human activities are driving declines in many wild populations and could have similar effects on genetic variation. Despite the importance of estimating such declines, no global estimate of the magnitude of ongoing genetic variation loss has been conducted across species. By combining studies that quantified recent changes in genetic variation across a mean of 27 generations for 91 species, we conservatively estimate a 5.4%–6.5% decline in within‐population genetic diversity of wild organisms since the industrial revolution. This loss has been most severe for island species, which show a 27.6% average decline. We identified taxonomic and geographical gaps in temporal studies that must be urgently addressed. Our results are consistent with single time‐point meta‐analyses, which indicated that genetic variation is likely declining. However, our results represent the first confirmation of a global decline and provide an estimate of the magnitude of the genetic variation lost from wild populations.
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Cites
Fitting Linear Mixed-Effects Models Using lme4
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Accelerated modern human–induced species losses: Entering the sixth mass extinction
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“Conservative estimates suggest extinction rates are now 100 times the historical baseline rate (Ceballos et al., 2015).”
BackgroundPredicting extinction risk in declining species
Purvis, A., Gittleman, J. L., Cowlishaw, G., & Mace, G. M. (2000) · Proceedings of the Royal Society of London. Series B: Biological Sciences · doi:10.1098/rspb.2000.1234 · Cited by 1,768
Cited by
Crop genetic erosion: understanding and responding to loss of crop diversity
Khoury, C. K., Brush, S., Costich, D. E., Curry, H. A., de Haan, S., Engels, J. M. M., Guarino, L., Hoban, S., Mercer, K. L., Miller, A. J., et al. (2022) · New Phytologist · doi:10.1111/nph.17733 · Cited by 471
Genetic diversity loss in the Anthropocene
Exposito-Alonso, M., Booker, T. R., Czech, L., Gillespie, L., Hateley, S., Kyriazis, C. C., Lang, P. L. M., Leventhal, L., Nogues-Bravo, D., Pagowski, V., et al. (2022) · Science · doi:10.1126/science.abn5642 · Cited by 288
Conserving intraspecific variation for nature’s contributions to people
Des Roches, S., Pendleton, L. H., Shapiro, B., & Palkovacs, E. P. (2021) · Nature Ecology & Evolution · doi:10.1038/s41559-021-01403-5 · Cited by 253
Conservation and the Genomics of Populations
Allendorf, F. W., Funk, W. C., Aitken, S. N., Byrne, M., Luikart, G., & Antunes, A. (2022) · doi:10.1093/oso/9780198856566.001.0001 · Cited by 207
Quest for Orthologs in the Era of Biodiversity Genomics
Langschied, F., Bordin, N., Cosentino, S., Fuentes-Palacios, D., Glover, N., Hiller, M., Hu, Y., Huerta-Cepas, J., Coelho, L. P., Iwasaki, W., et al. (2024) · Genome Biology and Evolution · doi:10.1093/gbe/evae224 · Cited by 26
Metadata
- Authors
- Leigh, D. M., Hendry, A. P., Vázquez‐Domínguez, E., & Friesen, V. L.
- Venue
- Evolutionary Applications
- Publisher
- Wiley
- Published
- 2019-06-05
- Volume
- 12
- Issue
- 8
- Pages
- 1505-1512
- ISSN
- 1752-4563 (ISSN-L)
- 1752-4571
- OpenAlex
- W2944333890
- Cited by
- 306
- References
- 3
- FWCI
- 18.69
- Type
- journal article
- Language
- en
- Open access
- gold
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- Leigh, D. M., Hendry, A. P., Vázquez‐Domínguez, E., & Friesen, V. L. (2019). Estimated six per cent loss of genetic variation in wild populations since the industrial revolution. Evolutionary Applications. https://doi.org/10.1111/eva.12810
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