Distribución e intensidad de los estudios faunísticos sobre mariposas diurnas en la Península Ibérica e islas Baleares (Lepidoptera, Papilionoidea y Hesperioidea)

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ID: 73104
2005
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Abstract
The distribution of the sampling effort of current faunistic data on the butterflies in the Iberian Peninsula and Balearic Islands has been analysed, using 10 and 50 km UTM grids. The number of records in the database ATLAMAR1 was selected as the sampling effort unit. Three approaches were attempted to evaluate the geographic coverage of the data: First, based on criteria of minimal conditions. Second, based on indirect estimators derived from 25 10 x 10 km UTM squares whose butterfly fauna is believed to be well sampled. Finally, accumulation curves were used to evaluate the completeness of faunistic knowledge in the 50 km UTM squares.<br /><br /> The different approaches were broadly coincident in indicating an adequate degree of knowledge for 6.8% of the 10 x 10 squares, and 62.3% of the 50 x 50 UTM squares. Approximately one third of the territory is characterised by a remarkable scarcity of butterfly records. This is especially true for some regions, namely Galicia, Castilla-La Mancha and inland Andalusia.<br /><br /> The results provide a reliable and objective basis for subsequent work on butterfly diversity, biogeography and conservation within the Iberian area.<br><br>Se ha analizado la distribución actual de la intensidad de muestreo de las mariposas diurnas en la Península Ibérica e Islas Baleares, usando el sistema de proyección UTM, con una red de malla de cuadrículas de 10 y 50 km de lado. Se realizaron tres tipos de aproximaciones para valorar la cobertura geográfica de los datos, seleccionando el número de registros de la base de datos ATLAMAR1 como unidad de esfuerzo de muestreo: Una basada en criterios mínimos, otra en estimadores indirectos derivados de 25 cuadrículas UTM de 10 km de lado bien muestreadas, y una última mediante la utilización de curvas de acumulación que se aplicó a las cuadrículas de 50 km de lado.<br /><br /> Los resultados de todos los análisis coinciden en señalar un 6,8% de las cuadrículas de 10 km de lado y un 62,3% de las cuadrículas de 50 km como bien estudiadas. Aproximadamente un tercio del territorio se caracteriza por una notable escasez de registros de mariposas, principalmente algunas zonas de Galicia, gran parte de Castilla-La Mancha, y la zona interior de Andalucía.<br /><br /> Los resultados permiten disponer de una base sólida y objetiva en la que apoyar subsiguientes estudios sobre biodiversidad, biogeografía y conservación en relación con estos lepidópteros.
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Authors H., Romo Benito,;E., García-Barros,;
Journal graellsia
Year 2005
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