Geographic variation and biogeography of terrestrial vertebrates around the Tokara Strait, northern Ryukyus, Japan

日本琉球北部吐噶喇海峡周围陆生脊椎动物的地理变异和生物地理学

基本信息

  • 批准号:
    09839024
  • 负责人:
  • 金额:
    $ 1.6万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 财政年份:
    1997
  • 资助国家:
    日本
  • 起止时间:
    1997 至 1998
  • 项目状态:
    已结题

项目摘要

The Tokara Strait, usually regarded as a boundary of the Oriental and Palearetic faunal realms, is considered to have been consistently interrupting dispersals of terrestrial fauna since its initial formation in the late Tertiary. However, several lineages of terrestrial animals are actually distributed on both sides of this strait, making interesting subjects from view points of historical biogeography and population systematics. To elucidate the dispersal and isolation of terrestrial animals across the Tokara Strait, we examined for several vertebrates the relative degrees of differentiations among populations around this strait. Quantitative morphological and allelic data were analyzed for distances among populations.Results have indicated that in most lineages examined, such as Ateuchosaurus pellopleurus, Gekko hokouensis and Eumeces marginatus, populations in both sides of the strait showed very little variation. This indicates the occurrence of oversea dispersals across the strai … More t in an unexpectedly high frequency in these lineages. This results strongly suggest the possible overstimation of the isolation effect of insularization upoiv the terrestrial organisms in other areas of the Ryukyus and Taiwan, where the Kuroshio Current, seemingly the most influensive agent of orga-nismal dispersals in this region, is dominant as in the Tokara Strait.Some taxonomic groups showing more sporadic distributions on both sides of the strait have been considered as remnants of landbridge dispersals prior to the formation of the Tokara Strait. However, our studies have revealed that there are no sister-relationships between representatives of both sides of the strait in some of such taxa (e.g., Cistoclemmys, including the fossil taxa), and that others (e.g., Pelodiscus sinensis), surely showing close genetic affinities, have been transported artificially across the strait. Such a result circumstantially support the frequent seacurrent-aided dispersal hypothesis for the former three lineages by confirming the long history of the Tokara Strait. Less
吐噶喇海峡通常被认为是东方动物区系和古希腊动物区系的边界,自第三纪晚期最初形成以来,人们认为它一直在阻碍陆地动物群的扩散。然而,一些陆生动物谱系实际上分布在海峡两岸,从历史生物地理学和种群系统学的角度来看,这是一个有趣的课题。为了阐明吐噶喇海峡陆生动物的分散和隔离,我们研究了该海峡周围几种脊椎动物种群之间分化的相对程度。对定量形态学和等位基因数据进行了种群间距离的分析。结果表明,在大多数所检查的谱系中,例如细颈龙、河口壁虎和边缘石雕,海峡两岸的种群变化很小。这表明这些谱系中跨海峡海外传播的频率出乎意料地高。这一结果强烈表明,可能高估了琉球群岛和台湾其他地区陆地生物的岛化隔离效应,黑潮似乎是该地区生物扩散最有影响力的因素,与吐噶喇海峡一样占主导地位。一些在海峡两岸表现出更零星分布的分类群被认为是陆桥的残余。 吐噶喇海峡形成之前的分散。然而,我们的研究表明,海峡两岸的一些类群(例如,Cistoclemmys,包括化石类群)的代表之间不存在姐妹关系,而其他类群(例如,Pelodiscus sinensis)无疑表现出密切的遗传亲缘关系,是被人工运输过海峡的。这一结果证实了吐噶喇海峡的悠久历史,间接支持了前三个谱系频繁的海流辅助扩散假说。较少的

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Hikida, T.: "Biogeography of reptiles in the subtropical East Asian islands" Proc.Symp.Phyl.Biogeogr.Cons.Fauna Flora of East Asian Region. 11-28 (1997)
Hikida, T.:“东亚亚热带岛屿爬行动物的生物地理学”Proc.Symp.Phyl.Biogeogr.Cons.东亚地区动物区系。
  • DOI:
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  • 影响因子:
    0
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  • 通讯作者:
Ota,H.: "Geographic variation in the endemic skink,Ateuchosaurus pellopleu-rus (Reptilia:Squamata) from the Ryukyu Archipelago,Japan" Journal of Herpetology. (印刷中).
Ota, H.:“来自日本琉球群岛的地方性石龙子,Ateuchosaurus pellopleu-rus(爬行动物:有鳞)的地理变异”《爬虫学杂志》(正在出版)。
  • DOI:
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  • 期刊:
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    0
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  • 通讯作者:
Ota,H.: "Geographic patterns of endemism and speciation in amphibians and rep-tiles of the Ryukyu Archipelago,Japan." Researches on Population Ecology. 40・2. 189-204 (1998)
Ota, H.:“日本琉球群岛两栖动物和爬行动物的地理格局”,人口生态学研究 40・2(1998)。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Kumazawa, Y.: "The complete nucleotide sequence of a snake (Dinodon semicarinatus) mitochondrial genome with two identical control regions" Genetics. Vol.150, No.2. 313-329 (1998)
Kumazawa, Y.:“蛇(Dinodon semicarinatus)线粒体基因组的完整核苷酸序列,具有两个相同的控制区域”遗传学。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Kumazawa,Y.: "The complete nucleotide sequence of a snake (Dinodon semicarinatus)mitochondrial genome with two identical control regions." Genetics. 150・2. 313-329 (1998)
Kumazawa, Y.:“具有两个相同控制区域的蛇(Dinodon semicarinatus)线粒体基因组的完整核苷酸序列。”150・2(1998)。
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    0
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OTA Hidetoshi其他文献

OTA Hidetoshi的其他文献

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{{ truncateString('OTA Hidetoshi', 18)}}的其他基金

Population systematics of the Pelodiscus sinensis species complex broadly distributed in East Asia
东亚广泛分布的中华鳖种群系统学
  • 批准号:
    24570110
  • 财政年份:
    2012
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Genetic diversity and population systematics of hydrophiine sea snakes from the Ryukyus Archipelago, Japan
日本琉球群岛亲水海蛇的遗传多样性和种群系统学
  • 批准号:
    21570098
  • 财政年份:
    2009
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Population Systematics of Takydromus tachydromoides (Reptilia : Squamata)
Takydromus tacHydromoides 的种群系统学(爬行纲:有鳞目)
  • 批准号:
    15570081
  • 财政年份:
    2003
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Validity and historical process of formation of the center of endemism for reptiles in the southern Tokara Islands
吐噶喇群岛南部爬行动物特有中心的有效性及其形成的历史过程
  • 批准号:
    11833013
  • 财政年份:
    1999
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

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