Santos Rojo
Natural Resources Research Institute
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Featured researches published by Santos Rojo.
Ecology and Evolution | 2016
Gunilla Ståhls; Ante Vujić; Theodora Petanidou; Pedro Cardoso; Snezana Radenkovic; Jelena Ačanski; Celeste Pérez Bañón; Santos Rojo
Abstract We investigated the phylogeographic patterns of Merodon species (Diptera, Syrphidae) in the Eastern Mediterranean. Ten species were sampled on five different islands and mainland sites as a minimum. All samples were screened for their mtDNA COI barcode haplotype diversity, and for some samples, we additionally generated genomic fingerprints. The recently established zoogeographic distribution categories classify these species as having (1) Balkan distribution; (2) Anatolian distribution; (3) continental areas and large islands distribution; and (4) with wide distribution. The ancestral haplotypes and their geographical localities were estimated with statistical parsimony (TCS). TCS networks identified as the ancestral haplotype samples that originated from localities situated within the distributional category of the species in question. Strong geographical haplotype structuring was detected for many Merodon species. We were particularly interested to test the relative importance of current (Aegean Sea) and past Mid‐Aegean Trench) barriers to dispersal for Merodon flies in the Aegean. We employed phylogenetic β‐diversity (Pβ total) and its partition in replacement (Pβ repl) and richness difference (Pβ rich) to test the importance of each explanatory variable (interisland distance, MAT, and island area) in interisland differences using partial Mantel tests and hierarchical partitioning of variation. β‐Analyses confirmed the importance of both current and past barriers to dispersal on the evolution of group. Current interisland distance was particularly important to explain the replacement of haplotypes, while the MAT was driving differences in richness of haplotypes, revealing the MAT as a strong past barrier whose effects are still visible today in the phylogenetic history of the clade in the Aegean. These results support the hypothesis of a highly restricted dispersal and gene flow among Merodon populations between islands since late Pleistocene. Additionally, patterns of phylogeographic structure deduced from haplotype connections and ISSR genome fingerprinting data revealed a few putative cases of human‐mediated transfers of Merodon spp.
Zootaxa | 2018
Ante Vujić; Gunilla Ståhls; Jelena Ačanski; Santos Rojo; Celeste Pérez-Bañón; Snežana Radenković
The Palaearctic Merodon geniculatus species group (Diptera, Syrphidae: Merodontini) currently comprises six Western Mediterranean species and four species with Eastern Mediterranean distribution. One of this group species, Merodon albifasciatus Macquart, 1842, is the only Merodon species listed from the Oriental Region. We discovered the lost holotype, which fit morphologically with European Merodon females of the M. albifasciatus species complex confirmed here and that occurs in the Palaearctic region. An integrative approach to the taxonomy of M. albifasciatus based on morphological and molecular evidences revealed the existence of two additional closely-related species in the Eastern Mediterranean area, M. luteofasciatus Vujić, Radenković Ståhls sp. nov. and M. neofasciatus Ståhls Vujić sp. nov.. The females of these three species can only be separated by molecular and distributional data. With the aim of stabilising species concepts within the complex, the taxon distributed in mainland Greece, including the Peloponnese was associated to the old female holotype of M. albifasciatus. The identity of Merodon fractipes Paramonov, described from Rhodes Island (Greece) as subspecies of M. geniculatus Strobl in Czerny Strobl, could not be resolved as the type specimen is lost. Thus the name M. fractipes is suppressed as nomen dubium. We discuss the distribution of the species of M. albifasciatus complex, identify host plants of M. neofasciatus, and provide an identification key to males of Eastern Mediterranean species of Merodon geniculatus group.
Archive | 2000
Ana Isabel Martínez Sánchez; Santos Rojo; M. Ángeles Marcos-García
Archive | 1999
Ana Isabel Martínez Sánchez; M. Ángeles Marcos-García; Santos Rojo
Innovaciones metodológicas en docencia universitaria: Resultados de investigación, 2016, ISBN 978-84-608-4181-4, págs. 475-504 | 2016
Cristina Fernández-Pacheco Estrada; Natalia Albaladejo Blázquez; Nilda Garay Montañez; Ana Gómez Bernabeu; Verónica López Yagües; Carmen Mañas-Viejo; Ana Isabel Martínez Sánchez; Julio Mulero; Antonio Muñoz González; Mercedes Ortiz-García; Javier Ortiz Zamora; Mercedes Palmero; Santos Rojo; Jesús Vega López
Ciencia forense: Revista aragonesa de medicina legal | 2015
Ana Isabel Martínez Sánchez; Concepción Magaña; Martin Toniolo; Paola Gobbi; Santos Rojo
Ciencia forense: Revista aragonesa de medicina legal | 2015
Yelitza Velásquez Zambrano; Paola Gobbi; Ana Isabel Martínez Sánchez; Santos Rojo
Archive | 2011
Ana Isabel Martínez Sánchez; Celeste Pérez-Bañón; Santos Rojo
Archive | 2011
Ana Isabel Martínez Sánchez; Santos Rojo
Archive | 2009
Celeste Pérez-Bañón; Santos Rojo