Journal
MOLECULAR ECOLOGY
Volume 28, Issue 3, Pages 644-657Publisher
WILEY
DOI: 10.1111/mec.14970
Keywords
ecological niche model; habitat isolation; isolation-by-environment; Nuclear Central America; phylogeography; silky anoles
Funding
- Division of Environmental Biology [0844624]
- Consejo Nacional de Ciencia y Tecnologia [154053]
- CONACYT [154053]
- National Science Foundation
- Division Of Environmental Biology
- Direct For Biological Sciences [0844624] Funding Source: National Science Foundation
Ask authors/readers for more resources
A primary challenge for modern phylogeography is understanding how ecology and geography, both contemporary and historical, shape the spatial distribution and evolutionary histories of species. Phylogeographic patterns are the result of many factors, including geology, climate, habitat, colonization history and lineage-specific constraints. Assessing the relative influences of these factors is difficult because few species, regions and environments are sampled in enough detail to compare competing hypotheses rigorously and because a particular phylogeographic pattern can potentially result from different evolutionary scenarios. The silky anoles (Anolis sericeus complex) of Central America and Mexico are abundant and found in all types of lowland terrestrial habitat, offering an excellent opportunity to test the relative influences of the factors affecting diversification. Here, we performed a range-wide statistical phylogeographic analysis on restriction site-associated DNA (RAD) markers from silky anoles and compared the phylogeographic patterns we recovered to historical and contemporary environmental and topographic data. We constructed niche models to compare niche overlap between sister lineages and conducted coalescent simulations to characterize how the major lineages of silky anoles have diverged. Our results revealed that the mode of divergence for major lineage diversification events was geographic isolation, resulting in ecological divergence between lineages, followed by secondary contact. Moreover, comparisons of parapatric sister lineages suggest that ecological niche divergence contributed to isolation by environment in this system, reflecting the natural history differences among populations in divergent environments.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available