Combining ecological niche modelling and morphology to assess the range-wide population genetic structure of bobcats (Lynx rufus)

摘要: Despite a broad distribution, general habitat requirements, and large dispersal potential, bobcats (Lynx rufus) exhibit genetic division that longitudinally transects central North America. We investigated (1) whether the climate of Last Glacial Maximum (LGM; 21 kya) isolated into refugia also current influences gene flow between segregate populations (2) geographical patterns in cranial morphology reflect population identity. created ecological niche models (ENMs) to evaluate climatic suitability estimate distributions disparate under both historical (LGM) contemporary conditions. used two-dimensional geometric morphometric methods variations cranium mandible. These were then regressed across variables assess morphological differences throughout range bobcat. ENMs projected onto LGM provided evidence during via increased north-west south-east portions this species' range. Contemporarily, our suggest Great Plains may be restricting bobcat migration flow, effectively maintaining populations. Morphological analyses identified significant linear trend shape variation latitudinal longitudinal gradients rather than distinct divergence lineages. Similar variations, however, did converge approximate locations assumed refugia. The findings present study provide robust assessment biogeographical considerations for structure bobcats.