Faunal assembly in chironomids (Diptera): generic association and spread

研究成果: ジャーナルへの寄稿記事

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Faunal assembly in chironomids was analysed using published data in the fauna of three rivers in southern England and of Great Britain as a whole. Two questions, both relating to the generic composition of local faunal assemblages, were asked: (i) to what extent are faunas from different sites within a single geographical area associated in terms of the occurrence of genera (‘generic association’); (ü) given the total number of species observed, is the number of different genera represented (‘generic spread’) more than would be expected by chance. The latter question relates to the hypothesis that if interspecific competition is a strong organizing force of local faunal assemblages, species would be more likely to occur as widely spread out among different genera, thus decreasing overlap in resource use and hence the possibility of outright competition. Null models of species occurrence were constructed through Monte Carlo simulation to evaluate quantitatively these two questions. Generic association of faunal assemblages from three localities was statistically significant, though there was some variation among different subfamilies of Chironomidae. No evidence of generic diversification (more genera occurring in the fauna than expected by chance) was found. These results and the original questions were given critical considerations in the discussion.

元の言語英語
ページ(範囲)353-367
ページ数15
ジャーナルBiological Journal of the Linnean Society
44
発行部数4
DOI
出版物ステータス出版済み - 1 1 1991

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Chironomidae
fauna
species occurrence
interspecific competition
resource use
river
simulation
England
rivers

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics

これを引用

Faunal assembly in chironomids (Diptera) : generic association and spread. / Tokeshi, Mutsunori.

:: Biological Journal of the Linnean Society, 巻 44, 番号 4, 01.01.1991, p. 353-367.

研究成果: ジャーナルへの寄稿記事

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