Convergent evolution, the independent emergence of similar traits across unrelated lineages due to shared environmental pressures, offers unique insights into adaptive evolution. In parasitoid Braconidae wasps, convergence is hypothesized to be driven by the diverse biological and ecological traits of their insect hosts, which are variable in their accessibility, life stage, and taxa. However, while host-driven convergence in Braconidae has been noted, systematic analyses from a macroevolutionary framework has yet to be undertaken. This study investigates host-driven convergent evolution in Braconidae using 22 morphological and ecological characters measured across diverse taxa. By testing for correlated evolution, host-functional group associations, and the emergence of trait syndromes, we aim to identify patterns of phenotypic evolution in response to host biology. We predict that host-associated traits, such as ovipositor length and body sclerotization, have evolved convergently in response to host substrate accessibility and life stage. This research enhances understanding of host specialization, trait syndromes, and the role of convergence in Braconidae evolution, contributing to broader discussions of adaptive strategies and evolutionary innovation in parasitoid Hymenoptera.
Christina Watkins
Dr. Sharanowski, Advisor
Read More