Asset Details
Do you wish to reserve the book?
Signals of corresponding genetic diversity loss in four warbler species exhibiting regional or range-wide declines
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Signals of corresponding genetic diversity loss in four warbler species exhibiting regional or range-wide declines
Do you wish to request the book?
Signals of corresponding genetic diversity loss in four warbler species exhibiting regional or range-wide declines
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Signals of corresponding genetic diversity loss in four warbler species exhibiting regional or range-wide declines
2025
Overview
Background
Anthropogenic forces have resulted in staggering losses of biodiversity and population declines in many species over the past two centuries. Associated with these declines are potential adverse effects linked to small population sizes, including loss of genetic diversity and increased levels of inbreeding. Here, we leverage DNA sequencing from museum specimens to examine genetic variation between historic and contemporary populations of four species of warblers (Aves,
Setophaga
) that vary with respect to degree of population changes over this period. To explore the genetic impacts of varying population declines, we gathered polymorphism data at 157 PCR-amplified loci in 341 individuals sampled in two time periods—historic (1789–1955) vs contemporary (2001–2020).
Results
For all four species, we observed decreases in nucleotide diversity and heterozygosity in contemporary data sets compared to historic data sets. In three species, this loss was accompanied by a corresponding increase in inbreeding coefficient
F
IS.
We find that these genetic diversity declines correspond to declining contemporary effective population sizes (Ne) over deeper time scales, as well as fluctuations in contemporary estimates of Ne.
Conclusion
Our findings suggest that loss of genetic diversity resulting from historic population declines persists over time (50–100 years), even when population trajectories later stabilize. Our results highlight the utility of long-term genetic temporal comparisons to reveal hidden genetic diversity loss and reveal important considerations for managing genetic diversity loss.
