ArticleEcology and evolution2026
The Evolution of Reproductive Isolation Beyond a Strong First Barrier in Speciation Between Micro-Allopatric Host Races of a Phytophagous Ladybird Beetle,
Article in Ecology and evolution, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Reproductive isolation often accumulates unevenly during speciation, with some barriers evolving early and others appearing only after further divergence. In host-associated phytophagous insects, divergent host use can generate strong habitat isolation that evolves early in speciation and often results in sudden shifts towards strong reproductive isolation. However, whether additional sexual or postmating barriers can accumulate after this strong early ecological barrier has evolved remains unclear. In this study, we examined this question in the host-specialised populations of the Southeast-Asian herbivorous ladybird beetle,
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