Population structure of the Jewel scarab Chrysina gloriosa
Clicks: 1
ID: 314185
2026
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This
article has not been analysed, so there is no overall score —
reader engagement is measured and shown alongside.
Reader Engagement
0.0
/100
1 views
0 readers
AI Quality Assessment
Not analyzed
Readership in this journal
Ranked #50 of 76 articles by views in genome biology and evolution
Most read
Least read
Bar heights use a square-root scale.
Mint this article as an NFT
Not yet mintedCreate a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.
5
SUSD
one-off · no wallet required
Abstract
The sky island mountain ranges of the southwestern United States offer a natural setting for examining how climate and geography impact population structure and gene flow. The jewel scarab, Chrysina gloriosa, is a charismatic beetle restricted to high-elevation habitats in these mountains, where isolation and environmental change may be driving population divergence. We used low-coverage whole-genome resequencing and species distribution modelling to study population structure, gene flow, and demographic history across five mountain ranges in Arizona and West Texas. Our results indicate strong genetic differentiation among most populations, with recent gene flow detected only between two neighbouring ranges, possibly through male-mediated dispersal. Demographic analyses reveal a decline in effective population size following late Pleistocene climate shifts, consistent with habitat contraction inferred from paleo-vegetation records. Future climate projections suggest further habitat loss and increasing isolation. Together, these results show how past and ongoing climatic changes have and continue to shape population structure in C. gloriosa, with important implications for its long-term evolutionary potential. These findings mirror patterns documented across sky-island taxa globally, supporting a general model in which climate-driven habitat dynamics and dispersal limitation interact to generate recurrent cycles of population fragmentation, genetic erosion, and demographic instability in montane systems.
| Reference Key |
openalex_W7161830511
Use this key to autocite in the manuscript while using
SciMatic Manuscript Manager or Thesis Manager
|
|---|---|
| Authors | Terrence Sylvester, Carl E. Hjelmen, Michelle J Thompson, Leslie T Blackmon, James M. Alfieri, Zachary Hoover, Tahmineh Esfandani, Heath Blackmon |
| Journal | genome biology and evolution |
| Year | 2026 |
| DOI |
10.1093/gbe/evag123
|
| URL | |
| Keywords | Keywords not found |
Citations
No citations found. To add a citation, contact the admin at info@scimatic.org
Comments
No comments yet. Be the first to comment on this article.