Biogeography, Climate and the Role of Direct Positive Interactions in Rocky Shoreline Communities

生物地理学、气候和岩石海岸社区直接积极相互作用的作用

基本信息

  • 批准号:
    9808027
  • 负责人:
  • 金额:
    $ 23.69万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    1998
  • 资助国家:
    美国
  • 起止时间:
    1998-09-15 至 2002-08-31
  • 项目状态:
    已结题

项目摘要

In comparison to competitive and consumer processes, the role played by direct positive interactions in marine communities has been overlooked. While direct positive interactions are widely recognized to occur, they have received little experimental attention by community ecologists and have been largely ignored as general community organizing forces. This study explicitly examines the role of habitat ameliorating positive interactions as organizing forces in rocky intertidal communities and specifically will explore the role of biogeography and climate in dictating the importance of these interactions. Specifically, this project (1) tests the hypothesis that the importance of habitat ameliorating, intraspecific group benefits in setting the upper intertidal limits of primary spaceholders increases with decreasing latitude and is more important in bays and estuaries than in open coast habitats due to predictable variation in the intensity of solar radiation. And (2) tests the hypothesis that, by limiting physical stresses on associated organisms, high intertidal algal canopies play a keystone role in structuring high intertidal communities, and that, like intraspecific group benefits, the importance of these effects are also strongly mediated by biogeography and climate. By focusing on the predictability and consequences of positive interactions in the otherwise well studied New England rocky intertidal system, this work will begin to incorporate positive interactions into our understanding of rocky shorelines and other marine and terrestrial systems. Studies suxh as this one that directly quantify how climate can influence process and pattern in natural assemblages may also be one of the best tools available for exploring the potential consequences of global climate change on communities.
与竞争和消费过程相比,海洋社区中直接的积极互动所发挥的作用被忽视了。虽然直接的积极相互作用被广泛认为是发生,他们很少受到社区生态学家的实验关注,并在很大程度上被忽视的一般社区组织力量。本研究明确探讨栖息地改善积极的相互作用,在岩石潮间带社区的组织力量的作用,特别是将探讨地理和气候的作用,在规定这些相互作用的重要性。具体而言,该项目(1)测试的假设,即栖息地改善,种内群体的好处,在设置上潮间带的主要空间持有者的重要性随着纬度的降低而增加,更重要的是在海湾和河口比在开放的海岸栖息地,由于太阳辐射强度的可预测的变化。(2)检验了这样一个假设,即通过限制对相关生物的物理压力,高潮间带藻类冠层在构建高潮间带群落中起着关键作用,而且,像种内群体利益一样,这些影响的重要性也强烈地受到地理和气候的影响。通过集中在预测性和积极的相互作用,否则研究新英格兰岩石潮间带系统的后果,这项工作将开始纳入我们的岩石海岸线和其他海洋和陆地系统的理解积极的相互作用。直接量化气候如何影响自然群落的过程和模式的研究也可能是探索全球气候变化对社区潜在影响的最佳工具之一。

项目成果

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Mark Bertness其他文献

Erratum to: Abiotic stress mediates top-down and bottom-up control in a Southwestern Atlantic salt marsh
  • DOI:
    10.1007/s00442-011-2101-2
  • 发表时间:
    2011-08-06
  • 期刊:
  • 影响因子:
    2.300
  • 作者:
    Juan Alberti;Agustina Méndez Casariego;Pedro Daleo;Eugenia Fanjul;Brian R. Silliman;Mark Bertness;Oscar Iribarne
  • 通讯作者:
    Oscar Iribarne

Mark Bertness的其他文献

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{{ truncateString('Mark Bertness', 18)}}的其他基金

Is overfishing triggerng the die-off of New England salt marshes?
过度捕捞是否引发了新英格兰盐沼的死亡?
  • 批准号:
    0927090
  • 财政年份:
    2009
  • 资助金额:
    $ 23.69万
  • 项目类别:
    Standard Grant
Collaborative Research: Crab Herbivory and the Structure of Southwestern Atlantic Salt Marsh Communities
合作研究:蟹食草和西南大西洋盐沼群落的结构
  • 批准号:
    0542515
  • 财政年份:
    2006
  • 资助金额:
    $ 23.69万
  • 项目类别:
    Continuing Grant
Dissertation Research: Periwinkle Grazing On and Control of Spartina Alterniflora.
论文研究:长春花的放牧及互花米草的防治。
  • 批准号:
    0206605
  • 财政年份:
    2002
  • 资助金额:
    $ 23.69万
  • 项目类别:
    Standard Grant
Do Alternate Stable Community States Exist in the Gulf of Maine Rocky Intertidal Zone
缅因湾落基潮间带是否存在替代稳定共同体国家
  • 批准号:
    0111427
  • 财政年份:
    2001
  • 资助金额:
    $ 23.69万
  • 项目类别:
    Continuing Grant
Top-Down Control of Primary Production in Atlantic Salt Marshes
大西洋盐沼初级生产的自上而下控制
  • 批准号:
    0082467
  • 财政年份:
    2000
  • 资助金额:
    $ 23.69万
  • 项目类别:
    Continuing Grant
Dissertation Research: Mechanisms of Community Facilitation and Metapopulation Dynamics of New England Cobble Beach Plants
论文研究:新英格兰鹅卵石海滩植物的群落促进机制和种群动态
  • 批准号:
    9801422
  • 财政年份:
    1998
  • 资助金额:
    $ 23.69万
  • 项目类别:
    Standard Grant
Dissertation Research: Seed Supply, Habitat Suitability, and the Distribution of Halophytic Forbs Across a Salt Marsh Landscape
论文研究:盐沼景观中的种子供应、栖息地适宜性和盐生杂草的分布
  • 批准号:
    9801521
  • 财政年份:
    1998
  • 资助金额:
    $ 23.69万
  • 项目类别:
    Standard Grant
Collaborative Research: Effects of Nutrients on Salt Marsh Zonation
合作研究:养分对盐沼分区的影响
  • 批准号:
    9628743
  • 财政年份:
    1996
  • 资助金额:
    $ 23.69万
  • 项目类别:
    Standard Grant
Collaborative Research: Is Variable Retention of Larvae Nearshore a General Cause of Variable Recruitment?
合作研究:近岸幼虫的可变保留是可变招募的一般原因吗?
  • 批准号:
    9409795
  • 财政年份:
    1994
  • 资助金额:
    $ 23.69万
  • 项目类别:
    Continuing Grant
Facilitative Interactions and the Dynamics of Salt Marsh Plant Communities
盐沼植物群落的促进性相互作用和动态
  • 批准号:
    9306349
  • 财政年份:
    1993
  • 资助金额:
    $ 23.69万
  • 项目类别:
    Standard Grant

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博士后奖学金:EAR-PF:评估热带泥炭地恢复对气候的净影响:甲烷的作用
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