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Ecological community assembly is more dynamic than previously thought. Considering the changing species pool and diverse ecological processes across scales is crucial for understanding biodiversity.

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Area of Science:

  • Ecology
  • Community Ecology
  • Biodiversity Science

Background:

  • Traditional ecological models view community assembly as species dispersal from a static regional pool followed by environmental filtering.
  • This perspective overlooks the dynamic nature of species pools and multi-scale assembly processes.

Purpose of the Study:

  • To challenge the static species pool concept in community assembly.
  • To emphasize the importance of dynamic species pools and multi-scale processes in ecology.

Main Methods:

  • Conceptual analysis of ecological assembly theories.
  • Integration of metacommunity dynamics, speciation, extinction, and dispersal.
  • Consideration of geographic and temporal scales in ecological processes.

Main Results:

  • Species pools are not static but are influenced by metacommunity dynamics and long-term evolutionary processes.
  • Community assembly is shaped by processes operating across a wide range of temporal and spatial scales.
  • Feedback between local and regional processes plays a critical role.

Conclusions:

  • A dynamic species pool framework is essential for a comprehensive understanding of community assembly.
  • Future research should focus on the geography of speciation, secondary sympatry, and local-regional process feedbacks.
  • Recognizing the dynamic nature of species pools is key to understanding biodiversity patterns.