Abstract
Community indices were evaluated at different frequency of transect counts of butterflies by randomization. Randomized samples were obtained by re-arranging 1, 3, 6, 12 and 18 counts from 18 counts at a study site (Hiraoka), and 1, 2, 3, 5 and 15 from 15 at another site (Narukawa), in 1994. Morisita's new estimate of species richness, QM gave a good estimate when the number of counts was five or more. QM estimated from the sum of both assemblages (58 species) was 70.7, while 73 species were recorded at least once from 1990 to 1994. The Octave method always resulted in an underestimation. Diversity indices, Shannon's H′, Simpson's D and β, Hurlbert's E(Sn), Itow's b, and Morisita's H⊛′ gave good estimates when the number of counts was five or more. Temporariness of univoltine species in flight period made a bias in the estimates. We concluded that the count is needed at least six times (once a month) and the estimates were improved by separating the multivoltine species from the univoltine species. Intensive counting during the flight period of the univoltine species was recommended.
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References
Hiura, I. (1973) Observation on the butterfly life at Hashiwami village, Yamato-Kashihara City and Nagai Park, Osaka City in 1972. Shizenshi-Kenkyu: Occasional Papers from the Osaka Museum of Natural History 1, 51–64.
Hurlbert, S.H. (1971) The nonconcept of species diversity: a critique and alternative parameters. Ecology 52, 577–86.
Ishii, M. (1993) Transect counts of butterflies. Decline Conserv. Butterflies Japan 2, 91–101.
Itow, S. (1984) Species diversity of Fagaceae-absent evergreen broadleaf forests on three NW-Kyushu satellite islands. Jpn. J. Ecol. 34, 225–8.
Lloyd, M. (1967) Mean crowding. J. Anim. Ecol. 36, 1–30.
Manly, B.F.J. (1991) Randomization and Monte Carlo Methods in Biology. London: Chapman and Hall.
Morisita, M. (1959) Measuring the dispersion of individuals and analysis of distribution patterns. Mem. Fac. Sci. Kyushu Univ. Series E (Biology) 2, 215–35.
Morisita, M. (1967) Seasonal distribution of butterflies at a suburb of Kyoto. In Shizen: Seitaigaku Kenkyu (M. Morisita and T. Kira, eds) pp. 95–132. Tokyo: Chuokoronsha.
Morisita, M. (1996) On the influence of the sample size upon the values of species diversity. Jpn. J. Ecol. 46, 269–89.
Natuhara, Y., Imai, C., Ishii, M., Sakuratani, Y. and Tanaka, S. (1996) Reliability of transect-count method for monitoring butterfly communities 1. Repeated Counts in an Urban Park. Jpn. J. Environ. Entom. Zool. 8, 13–22.
Pollard, E. and Yates, T.J. (1993) Monitoring Butterflies for Ecology and Conservation. London: Chapman & Hall.
Shinozaki, K. (1959) Shokubutsu kyodotai no bunsan kozo. In Seitaigaku Taikei, 1. Shokubutu-seitaigaku (1) (M. Numata, ed.) pp. 123–229. Tokyo: Kokinshoin.
Simpson, E.H. (1949) Measurement of diversity. Nature 163, 688.
Tanaka, B. (1988) A method of environmental evaluation by means of faunal composition of butterflies. Spec. Bull. Lepidopt. Soc. Japan 6, 527–66.
Yamamoto, M. (1988) On the research method for butterfly assemblages. Spec. Bull. Lepidopt. Soc. Japan 6, 191–210.
Yamamoto, M. (1996) Community structure of butterflies observed in and near Ryugasaki, 1986, based upon their seasonal fluctuation. J. Ryutsukeizai Univ. 30, 9–23.
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Natuhara, Y., Imai, C. & Takahashi, M. Evaluation of community indices in seasonal assemblages of butterflies (Lepidoptera) at different frequency of transect count. Biodiversity and Conservation 7, 631–639 (1998). https://doi.org/10.1023/A:1008804418188
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DOI: https://doi.org/10.1023/A:1008804418188