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Yellow or transparent? Comparison of sticky traps for monitoring functional arthropod diversity in an olive agroecosystem

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espanolEl valor de una comunidad de artropodos diversa y equilibrada en el dosel de los olivares se ha descrito con frecuencia, no obstante, no siempre se ha definido debidamente una… Click to show full abstract

espanolEl valor de una comunidad de artropodos diversa y equilibrada en el dosel de los olivares se ha descrito con frecuencia, no obstante, no siempre se ha definido debidamente una metodologia adecuada para determinar dicho valor. Durante dos anos se estudiaron los artropodos del dosel de un olivar mediante trampas adhesivas amarillas y transparentes. Para comparar ambos tipos de trampa, se utilizaron los indices de abundancia, riqueza y diversidad, la distribucion de la abundancia de las especies y la agregacion de taxones en grupos funcionales segun los servicios agroecosistemicos considerados prioritarios. Aparecieron diferencias en la abundancia total y varios taxones, y las trampas amarillas presentaron la mayor abundancia esperada, sin embargo, las trampas transparentes mostraron una comunidad de artropodos del dosel con un grado parecido de diversidad y uniformidad. Utilizar trampas adhesivas transparentes como metodo de bajo costo, susceptible de ser reproducido y que exige menos trabajo puede resultar adecuado para determinar la biodiversidad sin perjudicar a la comunidad de artropodos en su conjunto. EnglishA diverse and balanced arthropod community is known to play an important role in the olive canopy but monitoring methods are not always well defined. We monitored canopy arthropods in an olive orchard over two years, comparing the performance of yellow sticky traps and transparent sticky traps. Data used to compare the two types of traps were arthropod abundance, richness, diversity indices, species abundance distribution and aggregation of taxa in functional groups based on prioritized agroecosystem services. The total abundance of arthropods caught in the yellow traps was higher than that in the transparent traps but diversity in both traps was similar. Transparent traps may therefore be a valid option to assess biodiversity in an olive agrosystem as besides being less labor demanding than yellow traps, they are low cost and replicable, and do not damage the overall arthropod.

Keywords: sticky traps; yellow transparent; diversity; comunidad artropodos; agroecosystem

Journal Title: Animal Biodiversity and Conservation
Year Published: 2020

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