Junior High School of Okayama University of Science, 1-1 Ridai-cho, Kitaku, Okayama, Okayama 700-0005, Japan.
J Plant Res. 2012 May;125(3):327-37. doi: 10.1007/s10265-011-0452-8. Epub 2011 Sep 9.
To demonstrate altitudinal gradients (and resulting temperatures) that affect myxomycete biodiversity and species composition, we statistically compared myxomycete assemblages between a subalpine coniferous forest and a montane pine forest within the region of the Yatsugatake Mountains, Nagano Prefecture, Central Japan. In summer and autumn field surveys during 2003-2010, 53 myxomycete taxa (with varieties treated as species) were observed from 639 records of fruiting bodies in the subalpine forest and 32 taxa were detected from 613 records in the montane forest. There were 20 species in common between the assemblages and the percentage similarity index was 0.400. Myxomycete biodiversity was higher in the subalpine than in the montane forest. Nine myxomycete species were statistically frequent occurrences in the subalpine forest and appeared in autumn: Lamproderma columbinum, Cribraria macrocarpa, Trichia botrytis, Physarum newtonii, Diderma ochraceum, Enteridium splendens, Elaeomyxa cerifera, Trichia verrucosa, and Colloderma oculatum. Five species were restricted to appear in the subalpine forest: Cribraria purpurea, Cribraria rufa, Cribraria ferruginea, Cribraria piriformis, and Lepidoderma tigrinum. Dead wood in the subalpine forest provided a breeding habitat for specific myxomycetes that inhabit cold areas; that is those areas having geographical features of decreasing temperature and increasing elevation, such as the temperate area of Central Japan.
为了展示影响黏菌生物多样性和物种组成的海拔梯度（以及由此产生的温度），我们对长野县八岳山区亚高山针叶林和山地松林的黏菌群落进行了统计比较。在 2003 年至 2010 年的夏季和秋季实地调查中，从亚高山森林的 639 个生殖体记录中观察到 53 个黏菌类群（将变种视为物种），从山地森林的 613 个记录中检测到 32 个类群。两个群落共有 20 个物种，相似性指数为 0.400。亚高山森林中的黏菌生物多样性高于山地森林。有 9 种黏菌物种在亚高山森林中频繁出现，出现在秋季：Lamproderma columbinum、Cribraria macrocarpa、Trichia botrytis、Physarum newtonii、Diderma ochraceum、Enteridium splendens、Elaeomyxa cerifera、Trichia verrucosa 和 Colloderma oculatum。有 5 种物种仅出现在亚高山森林中：Cribraria purpurea、Cribraria rufa、Cribraria ferruginea、Cribraria piriformis 和 Lepidoderma tigrinum。亚高山森林中的枯木为栖息在寒冷地区的特定黏菌提供了繁殖栖息地；也就是说，这些地区具有温度降低和海拔升高的地理特征，例如日本中部的温带地区。
