TY - JOUR
T1 - Phylogenetic inference of where species spread or split across barriers
AU - Landis, Michael J.
AU - Quintero, Ignacio
AU - Muñoz, Martha M.
AU - Zapata, Felipe
AU - Donoghue, Michael J.
N1 - Funding Information:
monumental 2017 study. This research was supported by the NSF (Grant DEB-2040347 to M.J.L., Grant DEB-2040081 to F.Z.), start-up funds from Washington University in St. Louis (M.J.L.), and the Yale Institute for Biospheric Studies (M.J.L.). This project also received funding from the European Union’s Horizon 2020 research and innovation program under Marie Skłodowska-Curie Grant Agreement 897225 (I.Q.).
Publisher Copyright:
Copyright © 2022 the Author(s).
PY - 2022/3/29
Y1 - 2022/3/29
N2 - Regional features of geography, such as size or distance, are expected to shape how lineages disperse, go extinct, and speciate. Yet this fundamental link between geographical context and evolutionary consequence has not been fully incorporated into phylogenetic models of biogeography. We designed a model that allows variation in regional features (size, distance, insularity, and oceanic separation) to inform rates of biogeographic change. Our approach uses a Bayesian hierarchical modeling framework to transform regional values of quantitative and categorical features into evolutionary rates. We also make use of a parametric range split score to quantify range cohesion for widespread species, thereby allowing geographical barriers to initiate “range-splitting” speciation events. Applying our approach to Anolis lizards, a species-rich neotropical radiation, we found that distance between regions, especially over water, decreases dispersal rates and increases between-region speciation rates. For distances less than ∼470 km over land, anoles tended to disperse faster than they speciate between regions. Over oceans, the equivalent maximum range cohesion distance fell to ∼160 km. Our results suggest that the historical biogeography of founder event speciation may be productively studied when the same barriers that inhibit dispersal also promote speciation between regions.
AB - Regional features of geography, such as size or distance, are expected to shape how lineages disperse, go extinct, and speciate. Yet this fundamental link between geographical context and evolutionary consequence has not been fully incorporated into phylogenetic models of biogeography. We designed a model that allows variation in regional features (size, distance, insularity, and oceanic separation) to inform rates of biogeographic change. Our approach uses a Bayesian hierarchical modeling framework to transform regional values of quantitative and categorical features into evolutionary rates. We also make use of a parametric range split score to quantify range cohesion for widespread species, thereby allowing geographical barriers to initiate “range-splitting” speciation events. Applying our approach to Anolis lizards, a species-rich neotropical radiation, we found that distance between regions, especially over water, decreases dispersal rates and increases between-region speciation rates. For distances less than ∼470 km over land, anoles tended to disperse faster than they speciate between regions. Over oceans, the equivalent maximum range cohesion distance fell to ∼160 km. Our results suggest that the historical biogeography of founder event speciation may be productively studied when the same barriers that inhibit dispersal also promote speciation between regions.
UR - http://www.scopus.com/inward/record.url?scp=85127032412&partnerID=8YFLogxK
U2 - 10.1073/pnas.2116948119
DO - 10.1073/pnas.2116948119
M3 - Article
C2 - 35333650
AN - SCOPUS:85127032412
SN - 0027-8424
VL - 119
JO - Proceedings of the National Academy of Sciences of the United States of America
JF - Proceedings of the National Academy of Sciences of the United States of America
IS - 13
M1 - e2116948119
ER -