2. les diff types de successions 2 (1)

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Summary

The transcript discusses the two types of succession - autogenic and halogenic. Autogenic succession is driven by the organisms themselves, while halogenic succession is caused by external factors such as climate, disturbances, or human activities. In autogenic succession, the community modifies its own living conditions, leading to the arrival of other species. In halogenic succession, the change comes from outside the community, often due to external factors like climate change or human activities. Both types of succession can coexist, with external factors triggering a change that then leads to further changes through internal mechanisms.

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  1. 0:01
    Chapter 1: Après avoir vu d'où commence la succession, primaire ou secondaire, intéressons-nous maintenant à ce qui la provoque. 189s · Speaker 1

    Après avoir vu d'où commence la succession, primaire ou secondaire, intéressons-nous maintenant à ce qui la provoque. Et abordons les causes de la succession, c'est-à-dire le moteur du changement, avec les successions autogènes et halogènes…