Checklist of the spider fauna (Araneae) of Alicante province, southeastern Spain

Se reúne toda la información existente sobre las especies de arañas citadas en la provincia de Alicante a partir de 81 referencias bibliográficas publicadas desde el año 1875 hasta la fecha actual. Se aportan nuevas referencias al catálogo ibérico. En la actualidad se conocen de la provincia de Alicante 310 especies, distribuidas entre 182 géneros y 41 Familias. De ellas, 35 especies, el 11,3%, son endemismos ibéricos. Cuatro familias suman mas de un tercio de todas las especies: Gnaphosidae (42), Linyphiidae (40), Salticidae (39) y Theridiidae (27). La provincia se encuentra dividida administrativamente en nueve comarcas, y estas son las cifras respectivas: Alto Vinalopó (8 especies, citadas en 2 publicaciones), Baix Vinalopó (148 en 16), El Comtat (6 en 6), El Vinalopó Medio (17 en 11), L'Alcoià (14 en 8), L'Alacantí (98 en 25), La Marina Alta (158 en 28), La Marina Baja (30 en 15) y La Vega Baja (19 en 10).All the existing information on the spider species known from the province of Alicante is gathered from 81 bibliographical references published from the year 1875 to the present. New references are added to the Iberian catalogue. A total of 310 species are currently known from Alicante province, belonging to 182 genera and 41 families. Of those, 35 species, 11.3%, are Iberian endemics. Four families account for more than a third of all the species: Gnaphosidae (42), Linyphiidae (40), Salticidae (39) and Theridiidae (27). The province is divided into nine administrative areas (comarcas), and these are their respective figures: Alto Vinalopó (8 species, mentioned in 2 publications), Baix Vinalopó (148 in 16), El Comtat (6 in 6), El Vinalopó Medio (17 in 11), L'Alcoià (14 in 8), L'Alacantí (98 in 25), La Marina Alta (158 in 28), La Marina Baja (30 in 15) and La Vega Baja (19 in 10)

First record of the genus Sernokorba Kamura, 1992 from the Iberian Peninsula with new data on Sernokorba tescorum (Simon, 1914) (Araneae: Gnaphosidae)

Se cita por primera vez para la Península Ibérica el género Sernokorba Kamura, 1992 (Araneae, Gnaphosidae). Se ilustra la distribución de la especie y se aportan datos sobre la morfología de ambos sexos, la fenología y su aparente preferencia por zonas con arbolado como son los bosques de quercíneas.The presence of the genus Sernokorba Kamura, 1992 (Araneae, Gnaphosidae) is recorded for the first time for the Iberian Peninsula. The distribution of the species is illustrated and data are provided on the morphology of both sexes, its phenology and its apparent preference for wooded areas such as Quercus forests.Estudio parcialmente financiado por el Ministerio de Economía y Competitividad (CGL2011-23658)

Detección de roturas de devanado amortiguador en máquinas sincronas mediante análisis transitorio de la corriente

Nueva metodologia para deteccion de rotura en un determinado componente de la maquina sincrona (devanado amortiguador)Corral Hernández, JÁ. (2013). Detección de roturas de devanado amortiguador en máquinas sincronas mediante análisis transitorio de la corriente. Universitat Politècnica de València. http://hdl.handle.net/10251/60060Archivo delegad

Linyphiidae (Araneae) en oquedades de roble en un bosque Mediterráneo: nuevas descripciones y distribución temporal de especies notables

Hollows in mature trees provide a variety of habitats for high species richness and diversity of different arthropod groups. The scarcity of samplings carried out in tree hollows, especially on spiders and on mature oaks, predict the existence of taxonomic novelties in these rich microenvironments. A total of 18 Linyphiidae species, including one species new to science, were sampled with 49 tree hollow emergence traps set in deciduous Quercus forests in the Western Iberian Peninsula. Both sexes of Scotinotylus vettonicus Barrientos & Hernández-Corral sp. nov. and the female of the endemic Iberian Pelecopsis monsantensis Bosmans & Crespo, 2010 are described and both sexes of these two species and of Centromerus succinus (Simon, 1884) are illustrated. In addition, the spatial and temporal distribution of P. monsantensis, C. succinus, Midia midas (Simon, 1884) and Lepthyphantes minutus (Blackwall, 1833) is figured. Furthermore, the checklist of Linyphiidae species recorded in Salamanca province (Spain) is updated to a total of 40 species, representing 13% of all the linyphiids occurring in the Iberian Peninsula.Las oquedades en árboles maduros proporcionan una variedad de hábitats para una alta riqueza de especies y diversidad de diferentes grupos de artrópodos. La escasez de muestreos llevados a cabo en oquedades, especialmente sobre arañas y en robles maduros, hace prever la existencia de novedades taxonómicas en estos ricos microambientes. Un total de 18 especies de Linyphiidae, incluida una especie nueva para la ciencia, fueron colectadas utilizando 49 trampas de emergencia en oquedades de bosques caducifolios de Quercus en el Oeste de la Península Ibérica. Se describen ambos sexos de Scotinotylus vettonicus Barrientos & Hernández-Corral sp. nov. y la hembra del endemismo ibérico Pelecopsis monsantensis Bosmans & Crespo, 2010, y se ilustran ambos sexos de estas dos especies y de Centromerus succinus (Simon, 1884). Además, se representa la distribución espacial y temporal de P. monsantensis, C. succinus, Midia midas (Simon, 1884) y Lepthyphantes minutus (Blackwall, 1833). Además, se actualiza la lista de especies de Linyphiidae presentes en la provincia de Salamanca (España) a un total de 40 especies, lo que representa el 13% de todos los linífidos citados en la Peninsula Ibérica.Financial support was provided by the “Ministerio de Ciencia e Innovación”, Spain (CGL2011-23658, CGL2016‐78181‐R)

Las agregaciones espaciotemporales entre especies no descartan la competencia interespecífica en los ensambles de arañas de las oquedades arbóreas

1. A community's biological diversity reflects coexistence between species. This often depends, to some extent, on whether there is competition for resources and how it is dealt with. 2. The nature of old-growth tree hollows is confined and relatively isolated, which makes them ideal for investigating the competition phenomena between their inhabitants, such as Araneae. 3. The existence of interspecific competition in the structuring of tree hollow spider assemblages in Mediterranean forests was inferred by spatial co-occurrence pattern analyses with null models at both the community and pairwise levels. The analysis included 36 spider species collected monthly with emergence traps for 1 year. The distribution of four ecological traits, body size and phenology on the resulting pattern type was discussed. 4. The analyses showed spatial segregation at the community level and spatial aggregations between species with different traits predominated at the pairwise level. Hunting strategy and body size were the main differential traits to facilitate these aggregations. In addition, only the aggregations led by Amaurobius scopolii–Scotophaeus scutulatus and Eratigena atrica–Liocranum majus also showed an overlap during their main activity period. 5. Community segregation and spatio-temporal aggregations of species with differential traits suggest that interspecific competition is a very likely structuring factor of tree hollow spider assemblages. Instead, segregations at the pairwise level seem to result from other factors, for example, habitat preferences.We are grateful to the Spanish Ministry of Economy, Industry and Competitiveness for contributing financial support to Project CGL2016-78181-R. This reserach forms part of Gerard Martínez Devesa's PhD studies granted by 'Ministerio de Universidades'(REF. FPU21/00249

Informe sobre dos muestreos de arañas islandesas (Araneae)

We list the spiders (Araneae) collected at several localities in Iceland in two samplings carried out in 1961 and 2016. A total of 269 specimens belonging to 32 species, 29 genera and 7 families (Araneidae, Gnaphosidae, Linyphiidae, Lycosidae, Tetragnathidae, Theridiidae and Thomisidae) were collected. Until now 84 species have been recorded from Iceland. In addition, the known phenology of 15 species is extended.Se enumeran las arañas (Araneae) colectadas en varias localidades de Islandia en dos muestreos realizados en 1961 y 2016. Se han colectado un total de 269 especímenes pertenecientes a 32 especies, 29 géneros y 7 familias (Araneidae, Gnaphosidae, Linyphiidae, Lycosidae, Tetragnathidae, Theridiidae y Thomisidae). Hasta ahora han sido citadas 84 especies para Islandia. Además, se amplía la fenología conocida de 15 especies

Arachnids (Arachnida) in non-coastal sands of Almorxó, Pruna, Peñarrubia and Zafra (Alicante, Spain)

Se presenta el resultado del muestreo realizado en varios hábitats arenosos situados en las localidades interiores de Petrel y Villena (Alicante, España). Se han analizado un total de 752 especímenes de arañas. Se encuentran representadas 49 especies distribuidas entre 41 géneros y 17 familias. Son primera cita, tanto para la Comunidad Valenciana como para la provincia de Alicante (además de 9 y 10 especies, respectivamente), la familia Atypidae Thorell, 1870 y los géneros Atypus Latreille, 1804, Rhysodromus Schick, 1965, Psammitis Menge, 1876 y Metatrachelas Bosselaers & Bosmans, 2010. El 16,3% de las especies encontradas han resultado ser endemismos ibero-baleáricos. Se menciona también la presencia de los arácnidos Buthus ibericus Lourenço & Vachon, 2004 y Gluvia dorsalis Latreille, 1817.The result of the sampling carried out in several inland sandy environments of the localities of Petrel and Villena (Alicante, Spain) is presented. A total of 752 specimens have been analyzed. 49 species of spiders distributed among 41 genera and 17 families are represented. First records, both for the Valencian Community and for the province of Alicante, are the family Atypidae Thorell, 1870, the genera Atypus Latreille, 1804, Rhysodromus Schick, 1965, Psammitis Menge, 1876 and Metatrachelas Bosselaers & Bosmans, 2010, in addition to 9 and 10 species, respectively. 16,3% of the species found are Ibero-Balearic endemisms. The presence of the arachnids Buthus ibericus Lourenço & Vachon, 2004 and Gluvia dorsalis Latreille, 1817 are included

New data about the spiders (Araneae) of the Aitana mountain range (Alicante, Spain)

Una serie de muestreos realizados en el municipio de Confrides, en las sierras de Aitana y La Serrella (Alicante) han aportado 115 especies, 109 géneros y 27 familias de arañas. Se describe una especie nueva: Dysdera ferrandezi Barrientos & Hernández-Corral sp. n.; también se describen por primera vez la hembra de Dysdera valentina Ribera, 2004 y el macho de Cybaeodes dosaguas Ribera & De Mas, 2015. Son primera cita para la provincia de Alicante la familia Phrurolithidae, 21 géneros y 49 especies. Además, 37 especies son primera cita para la Comunidad Valenciana y dos lo son para la Península Ibérica. El 13% de las especies encontradas son endemismos ibero-baleáricos. Se representan y comentan los datos fenológicos de las especies más abundantes.A sampling effort carried out in the municipality of Confrides, in the Aitana and La Serrella mountain ranges (Alicante), have produced 115 species, 109 genera and 27 families of spiders. A new species, Dysdera ferrandezi Barrientos & Hernández-Corral sp. n., is described; the female of Dysdera valentina Ribera, 2004 and the male of Cybaeodes dosaguas Ribera & De Mas, 2015 are described for the first time. The family Phrurolithidae, 21 genera and 49 species are new to Alicante province. Furthermore, 37 species are first records for the Comunidad Valenciana adminstrative region and two for the Iberian Peninsula. 13% of the species found are Iberian-Balearic endemics. The phenological data of the most abundant species are given and commented upon

Influence of the start-up system in the diagnosis of faults in the rotor of induction motors using the Discrete Wavelet Transform

[EN] In previous articles, both the procedure and the advantages of the use of advanced mathematical tools,(as for example the Discrete Wavelet Transforms (DWT) and the continuous wavelet transforms (CWT)), for the time-frequency analysis of current signals captured in the stator during transients of starting and stopping have been deeply justified. The purpose of this analysis is the detection of rotor asymmetries as well as of possible eccentricities in induction motors. This article aims to analyze, from a qualitative point of view, the influence of the starting system on the results of the diagnosis method based on the analysis of the start-up current by using the DWT. Likewise, emphasis made on the impact and influence in the Wavelet Analysis (either through DWT or CWT) of harmonics introduced by the network, the motor itself and the possible fluctuations in the load torque. The results demonstrate the validity of the method, which presents a great robustness, regardless of the starting method or operating conditions. The theoretical conclusions were supported by actual measurements obtained in laboratory motors.Corral Hernandez, JA.; Antonino Daviu, JA. (2016). Influence of the start-up system in the diagnosis of faults in the rotor of induction motors using the Discrete Wavelet Transform. Procedia Computer Science. 83:807-815. doi:10.1016/j.procs.2016.04.170S8078158