著者

昆 健志 井上 潤

出版者

日本古生物学会

雑誌

化石 (ISSN:00229202)

巻号頁・発行日

vol.106, pp.5-17, 2019-09-30 (Released:2019-10-25)

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Understanding the process by which life diversifies is one of the central issues in biology. To clarify this process in focal taxa as well as to conduct phylogenetic analyses, a divergence time estimation —an important analysis to determine the timescale of a phylogenetic tree— must be performed. It is thought that the diversification process can be vividly reconstructed by estimating the diversification rate and ancestral geographic area, characterizing ancestral ecology, and mapping ancestral habitats according to a time-calibrated phylogenetic framework. Here we introduce a divergence time estimation method and various other methods for reconstructing the process of diversification based on the time-calibrated phylogenetic framework with some study examples of aquatic organisms, mainly fish.

著者

昆 健志 吉野 哲夫

出版者

The Ichthyological Society of Japan

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

vol.46, no.2, pp.101-103, 1999-11-30 (Released:2010-06-28)

参考文献数

14

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A specimen of Antennarius analis (Lophiiformes: Antennariidae), collected from Okinawa Island, Ryukyu Islands, Japan, represents the northernmost record of the species and the first record from Japanese waters. The species is easily distinguished from other members of the family in having the opercular opening adjacent to the anal fin. Judging from comments in the remarks accompanying the original description, the author of the species is Schultz, who was alone responsible for both the name and description of the species.

著者

昆 健志 井上 潤

出版者

日本古生物学会

雑誌

化石 (ISSN:00229202)

巻号頁・発行日

vol.106, pp.5-17, 2019

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Understanding the process by which life diversifies is one of the central issues in biology. To clarify this process in focal taxa as well as to conduct phylogenetic analyses, a divergence time estimation —an important analysis to determine the timescale of a phylogenetic tree— must be performed. It is thought that the diversification process can be vividly reconstructed by estimating the diversification rate and ancestral geographic area, characterizing ancestral ecology, and mapping ancestral habitats according to a time-calibrated phylogenetic framework. Here we introduce a divergence time estimation method and various other methods for reconstructing the process of diversification based on the time-calibrated phylogenetic framework with some study examples of aquatic organisms, mainly fish.

著者

西田 睦 昆 健志 高橋 そよ 羽賀 史浩 殿岡 裕樹

出版者

特定非営利活動法人 産学連携学会

雑誌

産学連携学 (ISSN:13496913)

巻号頁・発行日

vol.15, no.1, pp.1_30-1_40, 2019

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<p>昨今, 世界と日本社会は大きくかつ急速に変化しつつあり,大学が社会で大きな役割を果たすことへの期待がますます大きくなっている.琉球大学は創立時から「地域の発展に貢献する」ことをミッションとしてきたが,期待に応えるためにさらに様々な取組を強化する必要がある.そのための一環として,本学にリサーチアドミニストレーター(URA)が導入された.このURAが所属する研究企画室は,案件によって様々な部署と柔軟に連携を取ることによって,少人数でも効果的な活動を実現してきた.本稿では,4年近くにわたって進めてきた研究企画室の活動を,学内外セクターとの連携強化の試みに焦点を当てて紹介する.</p>