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Related Experiment Videos

Recruitment dynamics in complex life cycles.

J Roughgarden1, S Gaines, H Possingham

  • 1Department of Biological Sciences, Stanford University, CA 94305, USA.

Science (New York, N.Y.)
|September 16, 1988
PubMed
Summary
This summary is machine-generated.

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Marine rocky intertidal communities are shaped by local competition or offshore larval supply, depending on coastal circulation patterns. Understanding these coupled processes can help forecast population changes.

Area of Science:

  • Marine Ecology
  • Oceanography
  • Community Ecology

Background:

  • Marine rocky intertidal zones host diverse communities facing competition for space.
  • Community structure is influenced by local factors (predation, stress) or broader oceanic events (larval supply, upwelling).

Purpose of the Study:

  • To investigate the factors governing marine rocky intertidal community structure.
  • To determine the role of local versus regional processes in shaping intertidal ecology.
  • To explore the coupling between offshore circulation and intertidal community dynamics.

Main Methods:

  • Analysis of factors influencing intertidal community structure, including adult-adult interactions and larval supply.
  • Modeling of larval circulation patterns in coastal waters.
Keywords:
NASA Discipline ExobiologyNASA Discipline Number 52-20NASA Program ExobiologyNon-NASA Center

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  • Integration of ecological models with oceanographic data.

    • Main Results:

    • Community structure at some sites is determined by local interactions like competition and predation.
    • At other sites, the availability of larvae, influenced by offshore events like wind-driven upwelling, is the limiting factor.
    • Regional coastal circulation patterns dictate whether local or regional processes dominate intertidal community ecology.

    Conclusions:

    • The interplay between local ecological interactions and regional larval supply, driven by coastal circulation, governs marine rocky intertidal community structure.
    • Models integrating larval dispersal and adult interactions can predict population fluctuations.
    • Ecological processes across different habitats are interconnected, highlighting the importance of a holistic approach.