• Phylogeography, genomics and macroecology of insect migration
Insect migratory strategies have repeatedly evolved across taxa as an adaptation to heterogenetiy in space and time. I am currently studying the evolutionary fundamentals of migration either at a genetic and macroecological levels. I am conducting a worldwide phylogeographic study of the migratory butterfly Vanessa cardui (the painted lady), which represents what is potentially the widest distributional range among terrestrial migratory species. I plan to track worldwide migratory routes using new technological and theoretical advances in next-generation sequencing, genomic analysis, coalescent-based phylogeography and ecological modelling approaches to make a comprehensive study of V. cardui genetic population structure and migratory dynamics.
• Evolution and diversification of Lycaenidae butterflies
The family Lycaenidae is further characterized by a remarkable life history diversity, including an unusually broad range of host plants, a cosmopolitan distribution as a result of complex and multiple colonizations or explosive chromosome evolution that has evolved independently in several lineages. Even a notorious percentage of species have abandoned herbivory and are obligately aphytophagous for all or some portion of their lifetimes, typically consuming ants or ant-tended homopterans. Some clades present measurable bursts of diversification in some ecological regions that may be related to the colonization of arid habitats and the ability to perform diapause. The group displays an interesting pattern of wing color evolution as rapid color changes that may reflect reinforcement or ecological adaptation. Thus, the behavioral and ecological diversity of the Lycaenidae make them a prolific model system for comparative studies of life history evolution, ecology, biogeography, conservation, cytogenetics, ecological physiology, physiology and genetics of color vision, climate change and symbiosis. I am interested both at macroecological and specific levels, as understanding speciation and diversification through chromosomal rearrangements, the phylogenetic implications of aphytophagy or the origin of the complex current biogeography. My approaches include novel combinations of different data sources (DNA, RADseq, karyotype, morphology, ecology and phylogeographic models). Within the Lycaenidae, I am working towards making the subfamily Polyommatinae phylogenetically comprehensible, one of the most taxonomically complex groups of butterflies.
• Phylogenetics and molecular systematics
It is astonishing to think that a vast mass of biological diversity is yet waiting to be discovered. A beautiful challenge remains, thus, on finding mechanisms to explore and taxonomically address either poorly known regions and habitats or non-popular groups of organisms. Although there should not be the need to justify the importance of discovering world’s remaining biodiversity, to laid out correct taxonomic hypotheses are a prerequisite for any posterior credible research. I am interested on the applicability of molecular phylogenetics to contribute to the improvement of biological classifications, biodiversity assessments and species delimitations.
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