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Título:	Integrating distributions, community structure and genetic data to understand the biogeography of west-Mediterranean butterflies
Autor:	Dapporto, Leonardo CSIC ORCID; Vodă, Raluca; Dincă, Vlad; Vila, Roger CSIC ORCID
Fecha de publicación:	jun-2016
Citación:	XXV Congresso Nazionale Italiano de Entomologia (2016)
Resumen:	It is widely recognized that community characteristics and genetic structure of island biotas are determined by a interplay between contemporary and historical physi cal factors and by differences in ecological traits among species. Nevertheless, the mechanisms shaping island biotas are not yet well understood mostly, because of a lack of studies comparing eco-evolutionary fingerprints over entire taxonomic groups. In the last years, our research group integrated data about community structure (richness, frequency and nestedness), genetic differentiation (based on mitochondrial DNA) and species traits (degree of generalism, dispersal ability and climatic preferences) of butterfly communities occurring over the western Mediterranean region, a key biodiversity hot-spot located at the interface between two continents. An outstanding result emerging from these studies is the evidence that biogeographic dynamics can change butterfly communities in short time frames (thousands or hundreds of years), generating unexpected contrasts between insular and mainland populations. Understanding which ecological factors promote and reduce species colonization and survival is thus crucial in order to preserve such a patterned and peculiar insular biodiversity. Our integrated approach recently allowed us to tie apart and compare the relative relevance of several species traits in explaining species occurrence and genetic diversification in two butterfly-rich and highly diverse areas (Tuscan Archipelago and South Italy). We here show that climatic preferences play a dominant influence, with species living in drier climate showing high genetic structure and those preferring cooler and wetter climate facing the highest extinction risk. This suggests that environmental changes might selectively erase different fractions of the existing island diversity. Our approach provides an example of how series of comprehensive analyses on a wide area and la rge taxonomic groups can test rarely assessed biogeographic principles like the links of genetic structure with dispersal tendency and frequency on islands, or the relative effects of contemporary and historical determinants on island populations. The challenge of integrating community ecology and phylogeographic approaches can also provide the baseline information for developing conservation strategies that maximize biodiversity at both the species and intraspecific genetic levels.
Descripción:	Dapporto, Leonardo et al.-- Trabajo presentado en el XXV Congresso Nazionale Italiano de Entomologia, celebrado en Padua del 20 al 24 de junio de 2016.
URI:	http://hdl.handle.net/10261/154814
Aparece en las colecciones:	(IBE) Comunicaciones congresos