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Open systems in community ecology: Dispersal, diversity, and ecosystem properties.

Sarah Christine. Lee The University of North Carolina at Chapel Hill. Marine Sciences. 2009

Dissertation Abstracts International 70-04B.

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  • 題名:
    Open systems in community ecology: Dispersal, diversity, and ecosystem properties.
  • 著者: Sarah Christine. Lee
  • The University of North Carolina at Chapel Hill. Marine Sciences.
  • 主題: Biology, Ecology
  • 所屬期刊: Dissertation Abstracts International 70-04B.
  • 描述: A large fraction of community ecology has focused on processes that operate within communities to control species richness; however, most natural localities are open to dispersal. Dispersal can mediate community structure and functioning by introducing novel species and promoting coexistence at multiple spatial scales. Using experiments, I tested the effects of dispersal in complex, multi-trophic communities. Results suggest that dispersal of novel species is an important determinant of species richness, community composition and ecosystem properties across a range of environmental conditions. Dispersal also promoted coexistence in a network of communities with different environmental conditions, possibly by subsidizing failing populations with individuals of successful populations. Together, these results broaden our understanding of community and ecosystem-level effects of dispersal beyond terrestrial plant communities and highlight mechanisms of coexistence that may be unique to mobile animals.
  • 出版者: Thesis (Ph.D.)--The University of North Carolina at Chapel Hill, 2009.
  • 建立日期: 2009
  • 格式: 104 p..
  • 語言: 英文
  • 識別號: ISBN9781109112283
  • 資源來源: NUTN ALEPH
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