Carlos Barceló
University of the Balearic Islands
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Publication
Featured researches published by Carlos Barceló.
Veterinary Parasitology | 2014
R. Del Rio; Carlos Barceló; J. Lucientes; M. A. Miranda
Bluetongue (BT) is an important disease of ruminants which exhibits its most severe clinical signs on cattle and especially on certain breeds of sheep. The known vectors of BT are small insects of the genus Culicoides (Diptera; Ceratopogonidae). Two species from this genus - Culicoides imicola and Culicoides obsoletus - play the major role in the transmission of the disease in Europe. Several prophylactic methods are used to avoid transmission; however, an easy and cost-effective preventive technique would be very useful for the control of the Culicoides populations near the animals. In the present study, the insecticide effect of cypermethrin treated nets on a Culicoides population was evaluated. A polyethylene net sprayed with 1L cypermethrin solution (1%) surrounding a UV light suction trap was placed at a cattle farm in Majorca (Balearic Islands). Collections of Culicoides and other fauna from the trap and floor around the net were compared with a control. Results showed no significant differences in the collection of Culicoides midges between the insecticide-treated net and the control. However, significant differences were observed in the collection of the non-target fauna between the treated net and the control, indicating that the dose used in the present trial was enough to kill most of the arthropods that contacted the net. The reasons for these equivocal findings and means to improve this technique for the control of Culicoides midges are discussed.
Parasitology | 2014
R. Del Rio; Roger Venail; C. Calvete; Carlos Barceló; Thierry Baldet; J. Lucientes; M. A. Miranda
Bluetongue is a disease of major economic concern in Europe. Its causative agent, bluetongue virus (BTV), is transmitted by several Culicoides species (mainly Culicoides imicola and Culicoides obsoletus in Europe). The application of insecticides on animals may reduce transmission of BTV, however, no formulation is currently licensed specifically against Culicoides midges. The present study assesses the susceptibility of C. obsoletus to deltamethrin using an adapted World Health Organization (WHO) susceptibility test. Midges were exposed to different dosages of deltamethrin for 1 h, and mortality after 1 h and 24 h was recorded. Results indicated that deltamethrin is highly toxic to C. obsoletus since a dose of 1·33×10(-4)% was enough to kill 50% of the population (LD50) in 24 h. The deltamethrin concentration needed to kill 90% of the population (LD90) was 5·55×10(-4)%. The results obtained in the present work could help to create a system that can be used to assess insecticide resistance and susceptibility of Culicoides biting midges.
Medical and Veterinary Entomology | 2014
R. Del Rio; Carlos Barceló; Claudia Paredes-Esquivel; J. Lucientes; M. A. Miranda
Culicoides Latreille (Diptera: Ceratopogonidae) are vectors of several arboviruses, including bluetongue virus (BTV) and African horse sickness virus (AHSV), which cause diseases in, respectively, sheep and cattle, and horses, and have economic repercussions mainly as a result of trade restrictions. Insecticides can be used to reduce vector populations and hence the spread of disease. Despite the economic importance of these diseases, relatively few studies have evaluated the efficacy of commercially available insecticides and the effectiveness of treated nets against Culicoides species. The aim of the present study was to evaluate the insecticidal effect of commercially available polyethylene nets (ZeroVector®) treated with deltamethrin (4.4 g/kg ± 15%) on Culicoides species. Laboratory and field trials were conducted in Culicoides populations collected in Majorca in the Balearic Islands, Spain. The present study shows that deltamethrin‐treated nets provoke high and rapid mortality (90–100%) in Culicoides midges under laboratory conditions and increase mortality by 13% when deployed in the field.
Parasites & Vectors | 2018
Ana Carolina Cuellar; Lene Jung Kjær; Carsten Kirkeby; Henrik Skovgård; Søren Achim Nielsen; Anders Stockmarr; Gunnar Andersson; Anders Lindström; Jan Chirico; Renke Lühken; Sonja Steinke; Ellen Kiel; Jörn Gethmann; Franz Josef Conraths; Magdalena Larska; Inger Hamnes; Ståle Sviland; Petter Hopp; Katharina Brugger; Franz Rubel; Thomas Balenghien; Claire Garros; Ignace Rakotoarivony; Xavier Allene; Jonathan Lhoir; David Chavernac; Jean-Claude Delécolle; Bruno Mathieu; Delphine Delecolle; Marie-Laure Setier-Rio
BackgroundBiting midges of the genus Culicoides (Diptera: Ceratopogonidae) are vectors of bluetongue virus (BTV), African horse sickness virus and Schmallenberg virus (SBV). Outbreaks of both BTV and SBV have affected large parts of Europe. The spread of these diseases depends largely on vector distribution and abundance. The aim of this analysis was to identify and quantify major spatial patterns and temporal trends in the distribution and seasonal variation of observed Culicoides abundance in nine countries in Europe.MethodsWe gathered existing Culicoides data from Spain, France, Germany, Switzerland, Austria, Denmark, Sweden, Norway and Poland. In total, 31,429 Culicoides trap collections were available from 904 ruminant farms across these countries between 2007 and 2013.ResultsThe Obsoletus ensemble was distributed widely in Europe and accounted for 83% of all 8,842,998 Culicoides specimens in the dataset, with the highest mean monthly abundance recorded in France, Germany and southern Norway. The Pulicaris ensemble accounted for only 12% of the specimens and had a relatively southerly and easterly spatial distribution compared to the Obsoletus ensemble. Culicoides imicola Kieffer was only found in Spain and the southernmost part of France. There was a clear spatial trend in the accumulated annual abundance from southern to northern Europe, with the Obsoletus ensemble steadily increasing from 4000 per year in southern Europe to 500,000 in Scandinavia. The Pulicaris ensemble showed a very different pattern, with an increase in the accumulated annual abundance from 1600 in Spain, peaking at 41,000 in northern Germany and then decreasing again toward northern latitudes. For the two species ensembles and C. imicola, the season began between January and April, with later start dates and increasingly shorter vector seasons at more northerly latitudes.ConclusionWe present the first maps of seasonal Culicoides abundance in large parts of Europe covering a gradient from southern Spain to northern Scandinavia. The identified temporal trends and spatial patterns are useful for planning the allocation of resources for international prevention and surveillance programmes in the European Union.
Frontiers in Zoology | 2017
Giacomo Tavecchia; Miguel-Angel Miranda; D. Borrás; Mikel Bengoa; Carlos Barceló; Claudia Paredes-Esquivel; Carl J. Schwarz
BackgroundsAedes albopictus (Diptera; Culicidae) is a highly invasive mosquito species and a competent vector of several arboviral diseases that have spread rapidly throughout the world. Prevalence and patterns of dispersal of the mosquito are of central importance for an effective control of the species. We used site-occupancy models accounting for false negative detections to estimate the prevalence, the turnover, the movement pattern and the growth rate in the number of sites occupied by the mosquito in 17 localities throughout Mallorca Island.ResultsSite-occupancy probability increased from 0.35 in the 2012, year of first reported observation of the species, to 0.89 in 2015. Despite a steady increase in mosquito presence, the extinction probability was generally high indicating a high turnover in the occupied sites. We considered two site-dependent covariates, namely the distance from the point of first observation and the estimated yearly occupancy rate in the neighborhood, as predicted by diffusion models. Results suggested that mosquito distribution during the first year was consistent with what predicted by simple diffusion models, but was not consistent with the diffusion model in subsequent years when it was similar to those expected from leapfrog dispersal events.ConclusionsAssuming a single initial colonization event, the spread of Ae. albopictus in Mallorca followed two distinct phases, an early one consistent with diffusion movements and a second consistent with long distance, ‘leapfrog’, movements. The colonization of the island was fast, with ~90% of the sites estimated to be occupied 3 years after the colonization. The fast spread was likely to have occurred through vectors related to human mobility such as cars or other vehicles. Surveillance and management actions near the introduction point would only be effective during the early steps of the colonization.
bioRxiv | 2018
Sofia Delgado-Serra; Miriam Viader; Ignacio Ruiz Arrondo; M. A. Miranda; Carlos Barceló; Ruben Bueno-Mari; Luis Hernandez-Triana; Marga Miquel; Claudia Paredes-Esquivel
Cryptic speciation is frequent in the medically important mosquitoes. While most findings have been reported in tropical regions, it is an unexplored topic in countries where mosquito-borne diseases are not endemic, like Spain. The occurrence of recent outbreaks in Europe has increased the awareness on the native and invasive mosquito fauna present in the continent. Therefore, the central question of this study is whether the typological approach is sufficient to identify Spanish mosquitoes. To address this problem, we confronted the results of the morphological identification of 62 adult specimens collected from four different regions of Spain (La Rioja, Navarra, Castellón and the Island of Majorca) with the results obtained through DNA-barcoding. We conducted a comprehensive phylogenetic analysis of the COI gene region and compared this with the results of four species delimitation algorithms (ABGD initial partition, ABGD P=0.46%, bPTP and TCS). We report strong evidence for cryptic speciation in Anopheles algeriensis and Aedes vexans and reproductive isolation of the rock pool mosquito Aedes mariae. In addition, we report that the character present in the wings is not efficient to distinguish species Culiseta annulata from Culiseta subochrea, which distribution in the country may be different than previously described.
Journal of the European Mosquito Control Association | 2013
Margalida Miquel; Ricardo del Río; D. Borrás; Carlos Barceló; Claudia Paredes Esquivel; J. Lucientes; M. A. Miranda
Journal of the European Mosquito Control Association | 2015
Mikel Bengoa; Sarah Delacour-Estrella; Carlos Barceló; Claudia Paredes-Esquivel; Mar Leza; J. Lucientes; Ricardo Molina; M. A. Miranda
Medical and Veterinary Entomology | 2018
A. Sanz-Aguilar; R. Rosselló; M. Bengoa; M. Ruiz-Pérez; M. González-Calleja; Carlos Barceló; D. Borrás; Claudia Paredes-Esquivel; M. A. Miranda; Giacomo Tavecchia
Annual MeetingEPIZONE | 2017
Ana Carolina Cuellar; Lene Jung Kjær; Henrik Skovgaard; Søren Achim Nielsen; Anders Stockmarr; G. Anderson; Anders Lindström; Jan Chirico; Renke Lühken; Sonja Steinke; Ellen Kiel; Magdalena Larska; Inger Hamnes; Ståle Sviland; Petter Hopp; Katharina Brugger; Franz Rubel; Thomas Balenghien; Claire Garros; Ignace Rakotoarivony; Xavier Allene; Jonathan Lhoir; Jean Claude Delecolle; Bernard Mathieu; Delphine Delecolle; Marie-Laure Setier-Rio; Roger Venail; Bethsabée Scheid; Miguel Angel Miranda-Chueca; Carlos Barceló