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Open AccessArticle

Ad-Hoc vs. Standardized and Optimized Arthropod Diversity Sampling

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Smithsonian Institution, National Museum of Natural History, Washington, DC, USA
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Azorean Biodiversity Group–CITA-A, University of Azores, Angra do Heroísmo, Portugal
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IMAR–Coimbra Interdisciplinary Center, University of Coimbra, Coimbra, Portugal
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Department of Biology, University of Évora, Évora, Portugal
*
Author to whom correspondence should be addressed.
Diversity 2009, 1(1), 36-51; https://doi.org/10.3390/d1010036
Received: 6 August 2009 / Accepted: 25 August 2009 / Published: 1 September 2009
The use of standardized and optimized protocols has been recently advocated for different arthropod taxa instead of ad-hoc sampling or sampling with protocols defined on a case-by-case basis. We present a comparison of both sampling approaches applied for spiders in a natural area of Portugal. Tests were made to their efficiency, over-collection of common species, singletons proportions, species abundance distributions, average specimen size, average taxonomic distinctness and behavior of richness estimators. The standardized protocol revealed three main advantages: (1) higher efficiency; (2) more reliable estimations of true richness; and (3) meaningful comparisons between undersampled areas. View Full-Text
Keywords: abundance classes; accumulation curves; Araneae; biodiversity assessment; Iberian Peninsula; Portugal; rank-abundance curves; species richness estimators abundance classes; accumulation curves; Araneae; biodiversity assessment; Iberian Peninsula; Portugal; rank-abundance curves; species richness estimators
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Cardoso, P.; Crespo, L.C.; Carvalho, R.; Rufino, A.C.; Henriques, S.S. Ad-Hoc vs. Standardized and Optimized Arthropod Diversity Sampling. Diversity 2009, 1, 36-51.

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