Evolutionary Proliferation: Diversification and its Contex in Neogastropod Molluscs

进化增殖:新腹足类软体动物的多样化及其背景

基本信息

  • 批准号:
    9706749
  • 负责人:
  • 金额:
    $ 30万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    1997
  • 资助国家:
    美国
  • 起止时间:
    1997-08-01 至 2002-07-31
  • 项目状态:
    已结题

项目摘要

9706749 Vermeij Which circumstances characterize times of evolutionary expansion? What attributes characterize clades that proliferate at such times? These fundamental questions motivate the proposed study of diversification in selected clades of Cenozoic neogastropod molluscs. The great morphological and ecological diversity, as well as the excellent fossil record of this large group of molluscs make the Neogastropoda ideal for the study of evolutionary proliferation, an as yet poorly understood but crucially important phenomenon in the history of life. The taxonomy, phylogeny, distribution, and ecology of clades with apparently contrasting evolutionary histories will be studied. Building on earlier work with rapanine muricids and pseudolivids, analyses of ancestor-descendant and sister-group relationships will be conducted in the muricid subfamilies Ocenebrinae and Muricinae, the buccinid subfamilies Pisaniinae, Photinae, and Siphonaliinae, and the family Fasciolariidae. Comparisons within and between these purported clades will focus on shell characters of fossil and living species, to be examined in the major museum collections of the world, and on DNA sequences to be obtained from living representatives. Observations relating shell morphology to aspects of life including feeding, locomotion, and defense will be conducted on the two coasts of Panama. Hypotheses to be tested include the following: 1) key innovations as well as antipredatory traits reduce barriers to speciation and increase the range of potential phenotypes in a clade; 2) times of climatic warming (Middle to Late Eocene, Late Oligocene to Early Miocene, Early Pliocene) favor worldwide diversification; 3) constriction of the Central American seaway beginning in the Late Miocene stimulated speciation in tropical America but not elsewhere; 4) glacially induced climatic fluctuations stimulated speciation among high-latitude clades beginning in the latest Miocene. Multiple comparisons among sister-groups, a mong time intervals, and among regions with contrasting histories will be used to evaluate the roles of these intrinsic and extrinsic triggers of speciation and adaptive diversification. The study of diversification is important not only because evolutionary proliferation remains little understood, but also because of close parallels with economic growth. An empirically based economic perspective on the history of life may shed light on important controls of the human economy, and make possible intellectual links between evolutionary science and the social science discipline of economics.
小行星9706749 什么样的环境是进化扩张时期的特征? 在这样的时候,进化枝的特征是什么? 这些基本问题激发了对新生代新腹足类软体动物所选分支多样化的研究。 巨大的形态和生态多样性,以及这一大群软体动物的优秀化石记录,使新腹足类成为研究进化增殖的理想动物,这是一种尚未被充分理解但在生命史上至关重要的现象。 将研究具有明显对比的进化历史的分支的分类、发生、分布和生态。 早期的工作与rapanine muricids和pseudolivids的基础上,祖先后代和姐妹群关系的分析将在muricid亚科Ocenebrinae和Muricinae,buccinid亚科Pisaniinae,Photinae和Siphonaliinae,和家庭Fasciolariidae。 这些所谓的分支内部和之间的比较将集中在化石和活物种的外壳特征上,这些特征将在世界主要的博物馆收藏中进行检查,并将从活的代表中获得DNA序列。 将在巴拿马的两个海岸进行有关贝壳形态与生活方面的观察,包括摄食、运动和防御。 有待检验的假设包括:1)关键的创新以及抗捕食性状减少了物种形成的障碍,并增加了一个分支中潜在表型的范围; 2)气候变暖的次数(始新世中晚期、渐新世晚期至中新世早期、上新世早期)有利于全球多样化; 3)中新世晚期开始的中美洲海道的收缩刺激了热带美洲的物种形成,但在其他地方没有;(4)冰川引起的气候波动刺激了中新世末开始的高纬度分支间的物种形成。 姐妹群体之间的多重比较,一个梦的时间间隔,并与对比历史的地区之间将被用来评估这些内在和外在触发的物种形成和适应性多样化的作用。 对多样化的研究之所以重要,不仅是因为进化扩散仍然鲜为人知,而且还因为它与经济增长密切相关。 以经验为基础的生命史经济学视角可能会揭示人类经济的重要控制,并使进化科学和经济学的社会科学学科之间的知识联系成为可能。

项目成果

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Geerat Vermeij其他文献

Southern Caribbean Neogene palaeobiogeography revisited. New data from the Pliocene of Cubagua, Venezuela
  • DOI:
    10.1016/j.palaeo.2007.10.019
  • 发表时间:
    2008-02-01
  • 期刊:
  • 影响因子:
  • 作者:
    Bernard Landau;Geerat Vermeij;Carlos Marques da Silva
  • 通讯作者:
    Carlos Marques da Silva
Approaching a state shift in Earth’s biosphere
地球生物圈接近状态转变
  • DOI:
    10.1038/nature11018
  • 发表时间:
    2012-06-06
  • 期刊:
  • 影响因子:
    48.500
  • 作者:
    Anthony D. Barnosky;Elizabeth A. Hadly;Jordi Bascompte;Eric L. Berlow;James H. Brown;Mikael Fortelius;Wayne M. Getz;John Harte;Alan Hastings;Pablo A. Marquet;Neo D. Martinez;Arne Mooers;Peter Roopnarine;Geerat Vermeij;John W. Williams;Rosemary Gillespie;Justin Kitzes;Charles Marshall;Nicholas Matzke;David P. Mindell;Eloy Revilla;Adam B. Smith
  • 通讯作者:
    Adam B. Smith
Approaching a state shift in Earth’s biosphere
地球生物圈接近状态转变
  • DOI:
    10.1038/nature11018
  • 发表时间:
    2012-06-06
  • 期刊:
  • 影响因子:
    48.500
  • 作者:
    Anthony D. Barnosky;Elizabeth A. Hadly;Jordi Bascompte;Eric L. Berlow;James H. Brown;Mikael Fortelius;Wayne M. Getz;John Harte;Alan Hastings;Pablo A. Marquet;Neo D. Martinez;Arne Mooers;Peter Roopnarine;Geerat Vermeij;John W. Williams;Rosemary Gillespie;Justin Kitzes;Charles Marshall;Nicholas Matzke;David P. Mindell;Eloy Revilla;Adam B. Smith
  • 通讯作者:
    Adam B. Smith

Geerat Vermeij的其他文献

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{{ truncateString('Geerat Vermeij', 18)}}的其他基金

Biological Escalation: The Evolution of Labral Spines in Gastropods
生物升级:腹足动物盂唇刺的进化
  • 批准号:
    9405537
  • 财政年份:
    1994
  • 资助金额:
    $ 30万
  • 项目类别:
    Continuing Grant
Diversification and Extinction of Marine Molluscs
海洋软体动物的多样化和灭绝
  • 批准号:
    8409694
  • 财政年份:
    1984
  • 资助金额:
    $ 30万
  • 项目类别:
    Continuing Grant
Geography, Predation and Evolution of Marine Molluscs
海洋软体动物的地理、捕食和进化
  • 批准号:
    8307658
  • 财政年份:
    1983
  • 资助金额:
    $ 30万
  • 项目类别:
    Standard Grant
Studies on the Predation on Recent and Fossil Molluscs
近代软体动物和化石软体动物的捕食研究
  • 批准号:
    7909079
  • 财政年份:
    1979
  • 资助金额:
    $ 30万
  • 项目类别:
    Continuing Grant
Doctoral Dissertation Research in Biological Oceanography: How Juveniles Fit Into an Adult Community: a Study of Juveniles of the Snail Busycon Contrarium
生物海洋学博士论文研究:幼体如何融入成年群落:对Busycon Contrarium蜗牛幼体的研究
  • 批准号:
    7901806
  • 财政年份:
    1979
  • 资助金额:
    $ 30万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Research in Biological Oceanography: Geographical Patterns in Predation and Hermit Crab Ecology
生物海洋学博士论文研究:捕食和寄居蟹生态学的地理模式
  • 批准号:
    7712629
  • 财政年份:
    1977
  • 资助金额:
    $ 30万
  • 项目类别:
    Standard Grant
Studies of Caribbean and Pacific Intertidal Zones: Crab- Snail Interactions
加勒比和太平洋潮间带研究:蟹-蜗牛相互作用
  • 批准号:
    7422780
  • 财政年份:
    1974
  • 资助金额:
    $ 30万
  • 项目类别:
    Standard Grant

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