A Study of Metric characters for Bryozoan Taxonomy

苔藓虫分类度量特征的研究

• 批准号: 06640891
• 负责人: MAWATARI Shunsuke
• 金额: $ 1.09万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06640891/
• 关键词: heterozooids; colony defense; food intake efficiency; Membranipora serrilamella; Colony growth pattern; bifurcate budding; Thalamoporella rozieri; Microporella species; 採餌効率; 二分岐出芽; 群体成長パターン; 計測形質; 個体成長モデル; オートマトン; 個体間相互作用; Lindenmayer Syst

Colony growth pattern is compared between the two cheilostome bryozoans Membranipora serrilamella and Thalamoporella rozieri. Some rules of zooids budding were revealed to be different between the two species as follows :(1) Increasing rates of both single and twin zooids according to the area expanding of colony are similar between the two species.(2) The timing of bifurcation of zooid row is strongly correlated with the width of zooid in both species. In other words, there is a critical threshold of zooid width between the single and twin zooids.(3) In the colonies of Thalamoporella rozieri, aproximately 9 % of zooid rows come to an end before the colony edge, while 0 % in Membranipora serrilamella. This is caused by the more frequent bifurcation in the former than in the latter.(4) Nearly 12 % of the zooids in a colony of Membranipora serrilamella are twins while aproximately 18 % in Thalamoporella rozieri.(5) The zooid width is not correlated with the development of heterozooids. The frequency of heterozooids increases in colony edge.All of the data obtained by the present study consistently tell us that the zooids of a colony of Membranipora serrilamella are regularly arranged in order to make their food intake efficiency high. This principle for existence, however, can not be directly applied for Thalamoporella rozieri. It is concluded that the defense of colony performed by heterozooids evolutionally decreases the efficiency of hood intake.

比较了两种唇口苔藓动物锯缘膜孔苔藓虫和罗氏海藻的菌落生长模式。两种动物的萌发规律有以下几点不同：(1)随着种群面积的扩大，两种动物的单生和双生生态体的增长速度相似。(2)两种动物的生态行分叉时间与生态体的宽度密切相关。(3)在罗氏海链藻群体中，约有9%的类动物列在群体边缘之前结束，而在锯缘膜孔藻中则为0%。这是由于前者的分叉比后者更频繁所致。(4)锯缘膜藻群体中近12%的双胞胎为双胞胎，罗氏海藻中近18%为双胞胎。(5)动物体宽度与异源孢子的发育无关。本研究获得的所有数据都一致地告诉我们，为了提高摄食效率，锯缘膜孔扇贝种群的小体排列规则。然而，这一生存原则不能直接适用于罗氏海藻。由此得出结论，异源类的群体防御作用在进化上降低了引擎盖的摄食效率。

项目成果

Mawatari, S.and Suwa T.: "A taxonomic study of Microporella species (Bryozoa, cheilostomata) from Japan" Species Diversity. Vol.2No.1. 22-35 (1997)

Mawatari, S. 和 Suwa T.：“日本微孔菌属物种（苔藓虫、cheilostomata）的分类学研究”物种多样性。

池澤 広美・馬渡 峻輔: "幼生とその変態および群体発生に着目したコブコケムシ層(Glleporina)の系統分類" 海洋と生物. 16. 519-524 (1994)

Hiromi Ikezawa 和 Shunsuke Mawatari：“Glleporina 层的系统发育分类，重点关注幼虫、它们的变态和群体发育”《海洋与生物学》16. 519-524 (1994)。

Suwa,T.& Mawatari,S.F.: "Microporella(Bvyozoa,Cheilostowata)from Hokkaido,Japan" Specie Diversity. 1. 54-68 (1996)

诹访，T.

Shunsuke Mawatari, Tsuyoshi Suwa: "A taxonomic study of Microporella species(Bryozoa,Cheilostomata)from Japan" SPECIES DIVERSITY. 2. 22-35 (1997)

Shunsuke Mawatari、Tsuyoshi Suwa：“来自日本的微孔菌属物种（苔藓虫、Cheilostomata）的分类学研究”物种多样性。

前田卓哉,中島久男,馬渡峻輔: "コケムシ平面群体パターン形成の数理的解析" 数理生物学懇談会ニュースレター. 17. 20- (1995)

Takuy​​a Maeda、Hisao Nakajima、Shunsuke Mawatari：“苔藓虫平面菌落模式形成的数学分析”数学生物学协会通讯。17. 20-（1995）。