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The Bryozoan Diversity Mystery : Why Do We Have About 1000 Species in Japanese Waters?

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タイトル: The Bryozoan Diversity Mystery : Why Do We Have About 1000 Species in Japanese Waters?
著者: Scholz, Joachim 著作を一覧する
Mawatari, Shunsuke F. 著作を一覧する
Hirose, Masato 著作を一覧する
キーワード: Bryozoa
Latitudinal gradients
発行日: 2008年
出版者: 21st Century COE for Neo-Science of Natural History, Hokkaido University
引用: Edited by Hisatake Okada, Shunsuke F. Mawatari, Noriyuki Suzuki, Pitambar Gautam. ISBN: 978-4-9903990-0-9
誌名: Origin and Evolution of Natural Diversity : Proceedings of the International Symposium, The Origin and Evolution of Natural Diversity, held from 1-5 October 2007 in Sapporo, Japan
開始ページ: 129
終了ページ: 135
抄録: Bryozoans are clonal and colonial organisms that have a species-specific biological potential to perform tactial (reactive) growth alterations. These biological potentials subdivide encrusting bryozoan morphotypes into several different pathways of individuality of morphoprocesses, a term introduced by V. N. Beklemishev (1890-1962), and applied to bryozoans with various degrees of colony integration. The frequency distribution of these morphotypes (z-/m-/c-/s-laminae) has been studied in bryozoans occurring in the vicinity of 5 Japanese marine biology stations, located along the latitudinal gradient in Japan from cool-temperate to (marginally) tropical. With increasing light influx and temperature, substrate occupation and thickness of biofilms increase, and filamentous microalgae and cyanobacteria gradually replace diatoms. Likewise, the warmer the water, the more frequent became s- and c-laminae. Both are the morphotypes with the best relative potential to perform tactical response and to overgrow biomats. In warmer water, bryozoan coverage tends to decrease benthic microbial diversity. In cool waters, the opposite is often the case. This indicates that biofilms contribute to differentiate the substrate surface into various bryozoan microhabitats, and thus contribute to the overall bryozoan diversity present in Japanese waters.
記述: International Symposium, "The Origin and Evolution of Natural Diversity". 1–5 October 2007. Sapporo, Japan.
資料タイプ: proceedings


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