Data from: Species ecological similarity modulates the importance of colonization history for adaptive radiation
Tan, Jiaqi, Georgia Institute of Technology
Yang, Xian, Georgia Institute of Technology
Jiang, Lin, Georgia Institute of Technology
Published Mar 23, 2017 on Dryad.
Cite this dataset
Tan, Jiaqi; Yang, Xian; Jiang, Lin (2017). Data from: Species ecological similarity modulates the importance of colonization history for adaptive radiation [Dataset]. Dryad. https://doi.org/10.5061/dryad.75pr0
Adaptive radiation is an important evolutionary process, through which a single ancestral lineage rapidly gives rise to multiple newly formed lineages that specialize in different niches. In the first-arrival hypothesis, David Lack emphasized the importance of species colonization history for adaptive radiation, suggesting that the earlier arrival of a diversifying species would allow it to radiate to a greater extent. Here, we report on the first rigorous experimental test of this hypothesis, using the rapidly evolving bacterium Pseudomonas fluorescens SBW25 and six different bacterial competitors. We show that the earlier arrival of P. fluorescens facilitated its diversification. Nevertheless, significant effects of colonization history, which led to alternative diversification trajectories, were observed only when the competitors shared similar niche and competitive fitness with P. fluorescens. These results highlight the important role of species colonization history, modified by their ecological differences, for adaptive radiation.
Density of SBW25 phenotypes and competitors
In this file, we include the density of six SBW25 phenotypes and competitors. Data are log10-(x+1) transformed.
Data for Evolution 2017.xlsx
National Science Foundation, Award: DEB-1257858, DEB-1342754