Quinten Bafort

Quinten Bafort — PhD student
Joined the group in 2016

A PhD student fascinated by biodiversity and the evolution of life. Using a combination of bioinformatics tools and evolve and resequence experiments with Chlamydomonas reinhardtii and Spirodela polyrhiza, I try to gain a better understanding of the link between environmental stress and whole genome duplications and the stabilisation of these duplicated genomes. In addition to polyploidy and its link with ecology and evolution I have a strong interest in alpine ecosystems and cryptogams.

Education:

2014-2016: M.Sc. Biology Ghent University
Majoring in Evolutionary Biology and Biodiversity

2011-2014: B.Sc. Biology, Ghent University

Publications

  1. Bonte, D., & Bafort, Q. (2019). The importance and adaptive value of life‐history evolution for metapopulation dynamics. JOURNAL OF ANIMAL ECOLOGY, 88(1), 24–34.
    The spatial configuration and size of patches influence metapopulation dynamics by altering colonisation-extinction dynamics and local density dependency. This spatial forcing as determined by the metapopulation typology then imposes strong selection pressures on life-history traits, which will in turn feed back on the ecological metapopulation dynamics. Given the relevance of metapopulation persistence for biological conservation, and the potential rescuing role of evolution, a firm understanding of the relevance of these eco-evolutionary processes is essential. We here follow a systems' modelling approach to quantify the importance of spatial forcing and experimentally observed life-history evolution for metapopulation demography as quantified by (meta)population size and variability. We therefore developed an individual-based model matching an earlier experimental evolution with spider mites to perform virtual translocation and invasion experiments that would have been otherwise impossible to conduct. We show that (a) metapopulation demography is more affected by spatial forcing than by life-history evolution, but that life-history evolution contributes substantially to changes in local- and especially metapopulation-level population sizes, (b) extinction rates are minimised by evolution in classical metapopulations, and (c) evolution is optimising individual performance in metapopulations when considering the importance of more cryptic stress resistance evolution. Ecological systems' modelling opens up a promising avenue to quantify the importance of eco-evolutionary feedbacks in spatially structured populations. Metapopulation sizes are especially impacted by evolution, but its variability is mainly determined by the spatial forcing. Eco-evolutionary dynamics can increase the persistence of classical metapopulations. Conservation of genetic variation and, hence, adaptive potential is thus not only essential in the face of environmental change; it also generates putative rescuing feedbacks that impact metapopulation persistence.