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Estimation of True Species Richness of Leafhopper (Homoptera: Cicadellidae)

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概要 Species richness is one of the most important indices of biodiversity, but assessing true species rechness is no easy task. In this study, we tried to determine the best estimator among seven estimato...rs: ACE, ICE, Chao1, Chao2, Jack1, Jack2, and Bootstrap methods. A total of 7,579 samplings in two census fields, Motooka and Ino, were performed during 2000-2002. We established eight survey sites. Sixty-one and 56 leafhopper species were collected at Motooka and Ino, respectively. Because the standard deviations of penultimate observed species richness were zero at the six sites, such observed species richness was regarded as true species rixhness. aslthough most of the estimators were not consistent with the true species richness, ICE was the most appropriate method to estimate the true species richness. Correlation between the true soecies richness of keafhoppers and gthe observed species richness of tree species or tree + grass species was highly significant.続きを見る

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登録日 2010.07.16
更新日 2017.01.18

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